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Candemir B, Kisip K, Akın Ş, Sanal HT, Taşar M, Candemir M, Gülçelik NE. Prevalence and Predictive Features of CT-Derived Nonalcoholic Fatty Liver Disease in Metabolically Healthy MACS. Clin Endocrinol (Oxf) 2025; 102:380-388. [PMID: 39748255 DOI: 10.1111/cen.15194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Revised: 12/10/2024] [Accepted: 12/24/2024] [Indexed: 01/04/2025]
Abstract
OBJECTIVE Patients with mild autonomous cortisol secretion (MACS) are at increased risk of cardiometabolic outcomes, such as hyperglycemia, metabolic syndrome, and cardiovascular diseases. Nonalcoholic fatty liver disease (NAFLD) is also associated with increased cardiometabolic risk. We aimed to investigate the prevalence and predictors of NAFLD in metabolically healthy subjects with MACS. METHODS Forty patients with MACS and 60 patients with nonfunctioning adrenal incidentaloma (NFAI) matched for age, gender, and body mass index were included. We excluded various diseases that may lead to NAFLD, such as diabetes, cardiovascular diseases, and liver disorders. Non-alcoholic fatty liver disease was evaluated with unenhanced abdominal computed tomography and noninvasive fatty liver indices. RESULTS Patients with MACS had lower mean liver attenuation values (Hounsfield units, HU) than those with NFAI (p = 0.001). Visceral adiposity index, hepatic steatosis index, and fatty liver index were higher in the MACS group than in the NFAI group (p = 0.009, p = 0.002, p = 0.023, respectively). However, there was no significant association between the mean liver HU value and these indices. There was a significant association between serum cortisol level after the 1 mg dexamethasone suppression test (DST) and mean liver HU value independent of other traditional risk factors in various models performed in multivariable linear regression analysis. CONCLUSIONS Our findings suggest that MACS is associated with an increased risk of NAFLD, and serum cortisol level after 1 mg DST is an independent predictor of NAFLD in patients with MACS.
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Affiliation(s)
- Burcu Candemir
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Ankara, Turkey
| | - Kadir Kisip
- Gulhane Faculty of Medicine, Department of Radiology, University of Health Sciences, Ankara, Turkey
| | - Şafak Akın
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Ankara, Turkey
| | - Hatice Tuba Sanal
- Gulhane Faculty of Medicine, Department of Radiology, University of Health Sciences, Ankara, Turkey
| | - Mustafa Taşar
- Gulhane Faculty of Medicine, Department of Radiology, University of Health Sciences, Ankara, Turkey
| | - Mustafa Candemir
- Faculty of Medicine, Department of Cardiology, Gazi University, Ankara, Turkey
- Faculty of Science, Department of Statistics, Gazi University, Ankara, Turkey
| | - Neşe Ersöz Gülçelik
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Ankara, Turkey
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Fortibui MM, Park C, Kim NY, Kim TH, Lee MH. Dual-Emissive Detection of ATP and Hypochlorite Ions for Monitoring Inflammation-Driven Liver Injury In Vitro and In Vivo. Anal Chem 2024; 96:9408-9415. [PMID: 38804776 DOI: 10.1021/acs.analchem.4c00270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Reactive oxygen species play a pivotal role in liver disease, contributing to severe liver damage and chronic inflammation. In liver injury driven by inflammation, adenosine-5'-triphosphate (ATP) and hypochlorite ion (ClO-) emerge as novel biomarkers, reflecting mitochondrial dysfunction and amplified oxidative stress, respectively. However, the dynamic fluctuations of ATP and ClO- in hepatocytes and mouse livers remain unclear, and multidetection techniques for these biomarkers are yet to be developed. This study presents RATP-NClO, a dual-channel fluorescent bioprobe capable of synchronously detecting ATP and ClO- ions. RATP-NClO exhibits excellent selectivity and sensitivity for ATP and ClO- ions, demonstrating a dual-channel fluorescence response in a murine hepatocyte cell line. Upon intravenous administration, RATP-NClO reveals synchronized ATP depletion and ClO- amplification in the livers of mice with experimental metabolic dysfunction-associated steatohepatitis (MASH). Through a comprehensive analysis of the principal mechanism of the developed bioprobe and the verification of its reliable detection ability in both in vitro and in vivo settings, we propose it as a unique tool for monitoring changes in intracellular ATP and ClO- level. These findings underscore its potential for practical image-based monitoring and functional phenotyping of MASH pathogenesis.
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Affiliation(s)
| | - Chaewon Park
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Korea
| | - Na Yoon Kim
- Department of Chemistry, Chung-Ang University, Seoul 06974, Korea
| | - Tae Hyun Kim
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Korea
| | - Min Hee Lee
- Department of Chemistry, Chung-Ang University, Seoul 06974, Korea
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Sohail A, Ali H, Patel P, Subramanium S, Dahiya DS, Sohail AH, Gangwani MK, Satapathy SK. Impact of metabolic dysfunction-associated steatotic liver disease on COVID-19 hospitalizations: A propensity-matched analysis of the United States. World J Virol 2024; 13:91149. [PMID: 38616849 PMCID: PMC11008396 DOI: 10.5501/wjv.v13.i1.91149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/02/2024] [Accepted: 02/06/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Metabolic dysfunction-associated steatotic liver disease (MASLD), formally known as nonalcoholic fatty liver disease, is the most common chronic liver disease in the United States. Patients with MASLD have been reported to be at a higher risk of developing severe coronavirus disease 2019 (COVID-19) and death. However, most studies are single-center studies, and nationwide data in the United States is lacking. AIM To study the influence of MASLD on COVID-19 hospitalizations during the initial phase of the pandemic. METHODS We retrospectively analyzed the 2020 National Inpatient Sample (NIS) database to identify primary COVID-19 hospitalizations based on an underlying diagnosis of MASLD. A matched comparison cohort of COVID-19 hospitalizations without MASLD was identified from NIS after 1: N propensity score matching based on gender, race, and comorbidities, including hypertension, heart failure, diabetes, and cirrhosis. The primary outcomes included inpatient mortality, length of stay, and hospitalization costs. Secondary outcomes included the prevalence of systemic complications. RESULTS A total of 2210 hospitalizations with MASLD were matched to 2210 hospitalizations without MASLD, with a good comorbidity balance. Overall, there was a higher prevalence of severe disease with more intensive care unit admissions (9.5% vs 7.2%, P = 0.007), mechanical ventilation (7.2% vs 5.7%, P = 0.03), and septic shock (5.2% vs 2.7%, P <0.001) in the MASLD cohort than in the non-MASLD cohort. However, there was no difference in mortality (8.6% vs 10%, P = 0.49), length of stay (5 d vs 5 d, P = 0.25), and hospitalization costs (42081.5 $ vs 38614$, P = 0.15) between the MASLD and non-MASLD cohorts. CONCLUSION The presence of MAFLD with or without liver cirrhosis was not associated with increased mortality in COVID-19 hospitalizations; however, there was an increased incidence of severe COVID-19 infection. This data (2020) predates the availability of COVID-19 vaccines, and many MASLD patients have since been vaccinated. It will be interesting to see if these trends are present in the subsequent years of the pandemic.
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Affiliation(s)
- Abdullah Sohail
- Department of Internal Medicine, University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa, IA 52242, United States
| | - Hassam Ali
- Division of Gastroenterology and Hepatology, East Carolina University/Brody School of Medicine, Greenville, NC 27858, United States
| | - Pratik Patel
- Department of Gastroenterology, Mather Hospital/Hofstra University Zucker School of Medicine, NY, 11777, United States
| | - Subanandhini Subramanium
- Department of Internal Medicine, East Carolina University Brody School of Medicine, Greenville, NC 27834, United States
| | - Dushyant Singh Dahiya
- Division of Gastroenterology, Hepatology & Motility, The University of Kansas School of Medicine, Kansas City, KS 66160, United States
| | - Amir H Sohail
- Department of Surgery, University of New Mexico, Albuquerque, NM 87106, United States
| | - Manesh Kumar Gangwani
- Department of Internal Medicine, The University of Toledo, Toledo, OH 43606, United States
| | - Sanjaya K Satapathy
- Section on Gastroenterology and Hepatology, North Shore University Hospital and Long Island Jewish Medical Center, Manhasset, NY 11030, United States
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Hong SB, Lee NK, Kim S, Um K, Kim K, Kim IJ. Hepatic Fat Quantification with the Multi-Material Decomposition Algorithm by Using Low-Dose Non-Contrast Material-Enhanced Dual-Energy Computed Tomography in a Prospectively Enrolled Cohort. Medicina (B Aires) 2022; 58:medicina58101459. [PMID: 36295617 PMCID: PMC9609129 DOI: 10.3390/medicina58101459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/09/2022] [Accepted: 10/14/2022] [Indexed: 12/04/2022] Open
Abstract
The early diagnosis of hepatic steatosis is important. No study has assessed hepatic fat quantification by using low-dose dual-energy computed tomography (CT). We assessed the accuracy of hepatic fat quantification using the multi-material decomposition (MMD) algorithm with low-dose non-contrast material-enhanced dual-energy CT. We retrospectively reviewed 33 prospectively enrolled patients who had undergone low-dose non-contrast material-enhanced dual-energy CT and magnetic resonance image (MRI) proton density fat fraction (PDFF) on the same day. Percentage fat volume fraction (FVF) images were generated using the MMD algorithm on the low-dose dual-energy CT data. We assessed the correlation between FVFs and MRI-PDFFs by using Spearman's rank correlation. With a 5% cutoff value of MRI-PDFF for fatty liver, a receiver operating characteristic (ROC) curve analysis was performed to identify the optimal criteria of FVF for diagnosing fatty liver. CTDIvol of CT was 2.94 mGy. FVF showed a strong correlation with MRI-PDFF (r = 0.756). The ROC curve analysis demonstrated that FVF ≥ 4.61% was the optimal cutoff for fatty liver. With this cutoff value for diagnosing the fatty liver on low-dose dual-energy CT, the sensitivity, specificity, and area under the curve were 90%, 100%, and 0.987, respectively. The MMD algorithm using low-dose non-contrast material-enhanced dual-energy CT is feasible for quantifying hepatic fat.
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Affiliation(s)
- Seung Baek Hong
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Pusan 46241, Korea
| | - Nam Kyung Lee
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Pusan 46241, Korea
- Correspondence: (N.K.L.); (K.K.)
| | - Suk Kim
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Pusan 46241, Korea
| | - Kyunga Um
- General Electronics (GE) Healthcare Korea, Seoul 04637, Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Pusan 46241, Korea
- Correspondence: (N.K.L.); (K.K.)
| | - In Joo Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Biomedical Research Institute, Pusan National University Hospital, Pusan 46241, Korea
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5
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Brandman D, Boyle M, McPherson S, Van Natta ML, Sanyal AJ, Kowdley K, Neuschwander-Tetri B, Chalasani N, Abdelmalek MF, Terrault NA, McCullough A, Bettencourt R, Caussy C, Kleiner DE, Behling C, Tonascia J, Anstee QM, Loomba R. Comparison of clinical prediction rules for ruling out cirrhosis in nonalcoholic fatty liver disease (NAFLD). Aliment Pharmacol Ther 2022; 55:1441-1451. [PMID: 35302256 PMCID: PMC9098681 DOI: 10.1111/apt.16874] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 08/31/2021] [Accepted: 02/24/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND AIMS Patients with nonalcoholic fatty liver disease (NAFLD) cirrhosis benefit from referral to subspecialty care. While several clinical prediction rules exist to identify advanced fibrosis, the cutoff for excluding cirrhosis due to NAFLD is unclear. This analysis compared clinical prediction rules for excluding biopsy-proven cirrhosis in NAFLD. METHODS Adult patients were enrolled in the NASH Clinical Research Network (US) and the Newcastle Cohort (UK). Clinical and laboratory data were collected at enrolment, and a liver biopsy was taken within 1 year of enrolment. Optimal cutoffs for each score (eg, FIB-4) to exclude cirrhosis were derived from the US cohort, and sensitivity, specificity, positive predictive value, negative predictive value and AUROC were calculated. The cutoffs were evaluated in the UK cohort. RESULTS 147/1483 (10%) patients in the US cohort had cirrhosis. All prediction rules had similarly high NPV (0.95-0.97). FIB-4 and NAFLD fibrosis scores were the most accurate in characterising patients as having cirrhosis (AUROC 0.84-0.86). 59/494 (12%) patients in the UK cohort had cirrhosis. Prediction rules had high NPV (0.92-0.96), and FIB-4 and NAFLD fibrosis score the most accurate in the prediction of cirrhosis in the UK cohort (AUROC 0.87-0.89). CONCLUSIONS This cross-sectional analysis of large, multicentre international datasets shows that current clinical prediction rules perform well in excluding cirrhosis with appropriately chosen cutoffs. These clinical prediction rules can be used in primary care to identify patients, particularly those who are white, female, and <65, unlikely to have cirrhosis so higher-risk patients maintain access to specialty care.
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Affiliation(s)
- Danielle Brandman
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Marie Boyle
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Trust, Newcastle upon Tyne, UK
| | - Stuart McPherson
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Trust, Newcastle upon Tyne, UK
| | - Mark L. Van Natta
- John Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Arun J. Sanyal
- Department of Internal Medicine, Medical College of Virginia, Richmond, Virginia, USA
| | | | - Brent Neuschwander-Tetri
- Division of Gastroenterology and Hepatology, Department of Medicine, Saint Louis University, Saint Louis, Missouri, USA
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University, Indianapolis, Indiana, USA
| | - Manal F. Abdelmalek
- Division of Gastroenterology, Hepatology, and Nutrition, Duke University, Durham, North Carolina, USA
| | - Norah A. Terrault
- Division of Gastroenterology and Liver, Keck Medicine, University of Southern California, Los Angeles, California, USA
| | - Art McCullough
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ricki Bettencourt
- NAFLD Research Center, Department of Medicine, University of California San Diego, San Diego, California, USA
| | - Cyrielle Caussy
- NAFLD Research Center, Department of Medicine, University of California San Diego, San Diego, California, USA
| | - David E. Kleiner
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Cynthia Behling
- Analytic Pathology Medical Group, Sharp Memorial Hospital, San Diego, California, USA
| | - James Tonascia
- John Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Quentin M. Anstee
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Rohit Loomba
- NAFLD Research Center, Department of Medicine, University of California San Diego, San Diego, California, USA
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Chowdhury AB, Mehta KJ. Liver biopsy for assessment of chronic liver diseases: a synopsis. Clin Exp Med 2022; 23:273-285. [PMID: 35192111 DOI: 10.1007/s10238-022-00799-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/22/2022] [Indexed: 12/14/2022]
Abstract
The world-wide increase in chronic liver disease (CLD) calls for refinement of diagnostic and prognostic measures for early and accurate disease detection and management. Regardless of the aetiology, liver biopsy allows direct visualisation of specimen under the microscope. It facilitates histological evaluation of disease-specific morphological alterations. Thereby, it aids in disease diagnosis, prognosis, and assessment of treatment compliance/response. Indeed, with the advent of non-invasive methods, liver biopsy is used less frequently than before, but it is still considered as a gold standard for staging and grading several CLDs. This short review revisits liver biopsy. It highlights the significance of liver biopsy in evaluating CLDs and explains the commonly used Ishak, METAVIR and Batts-Ludwig scoring systems for grading and staging CLDs. The utility of liver biopsy in examining alcohol-related liver disease and non-alcoholic fatty liver disease (NAFLD) is discussed along with the disease-specific alcoholic hepatitis histology score (AHHS) and non-alcoholic fatty liver disease activity score (NAS). Additionally, the review elaborates on the role of liver biopsy in evaluating viral hepatitis, haemochromatosis, and hepatocellular carcinoma. Contextual explanation on the diagnosis of metabolic dysfunction-associated liver disease (MAFLD) is provided. The significance and clinical indications of repeat biopsy are also explained. Lastly, caveats and limitations associated with liver biopsy are reviewed. Essentially, this review collates the application of liver biopsy in assessing various CLDs and provides succinct explanations of the core scoring systems, all under one roof. It is clinically relevant and provides a useful synopsis to budding scientists and hepato-pathologists.
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Affiliation(s)
- Aqib B Chowdhury
- GKT School of Medical Education, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Kosha J Mehta
- Centre for Education, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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Yin H, Shi A, Wu J. Platelet-Activating Factor Promotes the Development of Non-Alcoholic Fatty Liver Disease. Diabetes Metab Syndr Obes 2022; 15:2003-2030. [PMID: 35837578 PMCID: PMC9275506 DOI: 10.2147/dmso.s367483] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/28/2022] [Indexed: 11/23/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a multifaceted clinicopathological syndrome characterised by excessive hepatic lipid accumulation that causes steatosis, excluding alcoholic factors. Platelet-activating factor (PAF), a biologically active lipid transmitter, induces platelet activation upon binding to the PAF receptor. Recent studies have found that PAF is associated with gamma-glutamyl transferase, which is an indicator of liver disease. Moreover, PAF can stimulate hepatic lipid synthesis and cause hypertriglyceridaemia. Furthermore, the knockdown of the PAF receptor gene in the animal models of NAFLD helped reduce the inflammatory response, improve glucose homeostasis and delay the development of NAFLD. These findings suggest that PAF is associated with NAFLD development. According to reports, patients with NAFLD or animal models have marked platelet activation abnormalities, mainly manifested as enhanced platelet adhesion and aggregation and altered blood rheology. Pharmacological interventions were accompanied by remission of abnormal platelet activation and significant improvement in liver function and lipids in the animal model of NAFLD. These confirm that platelet activation may accompany a critical importance in NAFLD development and progression. However, how PAFs are involved in the NAFLD signalling pathway needs further investigation. In this paper, we review the relevant literature in recent years and discuss the role played by PAF in NAFLD development. It is important to elucidate the pathogenesis of NAFLD and to find effective interventions for treatment.
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Affiliation(s)
- Hang Yin
- Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, People’s Republic of China
| | - Anhua Shi
- Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, People’s Republic of China
| | - Junzi Wu
- Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, People’s Republic of China
- Correspondence: Junzi Wu; Anhua Shi, Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, People’s Republic of China, Tel/Fax +86 187 8855 7524; +86 138 8885 0813, Email ;
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Sadeghi F, Amanat S, Bakhtiari M, Asadimehr H, Okhovat MA, Hosseinzadeh M, Mazloomi SM, Gholamalizadeh M, Doaei S. The effects of high fructose fruits and honey on the serum level of metabolic factors and nonalcoholic fatty liver disease. J Diabetes Metab Disord 2021; 20:1647-1654. [PMID: 34900816 DOI: 10.1007/s40200-021-00916-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 10/09/2021] [Indexed: 12/31/2022]
Abstract
Introduction The effect of the natural sources of fructose such as high fructose fruits and honey on the risk of fatty liver is still challenging. This study aimed to compare the effect of fructose, high fructose fruits, and honey on the metabolic factors and non-alcoholic fatty liver disease (NAFLD). Methods Forty-four rats were divided into four groups including normal diet group, high fructose group (HF), high fructose fruits group (HFF), and honey group (HO). After 120 days of intervention, the levels of insulin resistance, hepatic enzyme, and lipid profile were measured. Also, the expression levels of the acetyl-coA carboxylase (ACC), sterol regulatory element-binding protein 1c (SREBP-1c), Interleukin 6 (IL-6), and transforming growth factor-beta (TGF-β) genes were assessed. In addition, a histopathologic assessment was performed on liver tissues. Results Insulin resistance (IR) increased significantly in the HF, HFF, and HO groups (All P < 0.05). The levels of liver enzymes was significantly increased only in the group receiving the HF regimen (P < 0.01). A significant decrease in total cholesterol and HDL-C (high density lipoprotein cholesterol) levels was found in HO group compared to the control group (P < 0.05). The expression levels of ACC and SREBP-1c genes in HF, HFF, and HO groups were significantly higher than the control group (All P < 0.05). The HF group had a greater increase in the level of gene expression of IL-6 and TGF-β (All P < 0.05). Histopathological assessment did not find any changes in fatty liver formation and inflammatory damage. Conclusion Consumption of fructose-rich honey and fruits improved the status of inflammatory markers and liver enzymes compared with the industrial fructose-rich products.
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Affiliation(s)
- Fatemeh Sadeghi
- Discipline of Physiotherapy, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Sasan Amanat
- Student Research Committee, Larestan University of Medical Sciences, Larestan, Iran
| | - Mohammad Bakhtiari
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Mohammad Ali Okhovat
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masood Hosseinzadeh
- Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Mazloomi
- Nutrition Research Center, Department of Food Hygiene and Quality Control, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Gholamalizadeh
- Student Research Committee, Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeid Doaei
- Reproductive Health Research Center, Department of Obstetrics & Gynecology, Al-Zahra Hospital, School of Health, Guilan University of Medical Sciences, Rasht, Iran
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9
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Qu Y, Middleton MS, Loomba R, Glaser KJ, Chen J, Hooker JC, Wolfson T, Covarrubias Y, Valasek MA, Fowler KJ, Zhang YN, Sy E, Gamst AC, Wang K, Mamidipalli A, Schwimmer JB, Song B, Reeder SB, Yin M, Ehman RL, Sirlin CB. Magnetic resonance elastography biomarkers for detection of histologic alterations in nonalcoholic fatty liver disease in the absence of fibrosis. Eur Radiol 2021; 31:8408-8419. [PMID: 33899143 PMCID: PMC8530863 DOI: 10.1007/s00330-021-07988-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/25/2021] [Accepted: 04/02/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To investigate associations between histology and hepatic mechanical properties measured using multiparametric magnetic resonance elastography (MRE) in adults with known or suspected nonalcoholic fatty liver disease (NAFLD) without histologic fibrosis. METHODS This was a retrospective analysis of 88 adults who underwent 3T MR exams including hepatic MRE and MR imaging to estimate proton density fat fraction (MRI-PDFF) within 180 days of liver biopsy. Associations between MRE mechanical properties (mean shear stiffness (|G*|) by 2D and 3D MRE, and storage modulus (G'), loss modulus (G″), wave attenuation (α), and damping ratio (ζ) by 3D MRE) and histologic, demographic and anthropometric data were assessed. RESULTS In univariate analyses, patients with lobular inflammation grade ≥ 2 had higher 2D |G*| and 3D G″ than those with grade ≤ 1 (p = 0.04). |G*| (both 2D and 3D), G', and G″ increased with age (rho = 0.25 to 0.31; p ≤ 0.03). In multivariable regression analyses, the association between inflammation grade ≥ 2 remained significant for 2D |G*| (p = 0.01) but not for 3D G″ (p = 0.06); age, sex, or BMI did not affect the MRE-inflammation relationship (p > 0.20). CONCLUSIONS 2D |G*| and 3D G″ were weakly associated with moderate or severe lobular inflammation in patients with known or suspected NAFLD without fibrosis. With further validation and refinement, these properties might become useful biomarkers of inflammation. Age adjustment may help MRE interpretation, at least in patients with early-stage disease. KEY POINTS • Moderate to severe lobular inflammation was associated with hepatic elevated shear stiffness and elevated loss modulus (p =0.04) in patients with known or suspected NAFLD without liver fibrosis; this suggests that with further technical refinement these MRE-assessed mechanical properties may permit detection of inflammation before the onset of fibrosis in NAFLD. • Increasing age is associated with higher hepatic shear stiffness, and storage and loss moduli (rho = 0.25 to 0.31; p ≤ 0.03); this suggests that age adjustment may help interpret MRE results, at least in patients with early-stage NAFLD.
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Affiliation(s)
- Yali Qu
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Michael S Middleton
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Rohit Loomba
- NAFLD Research Center, Division of Gastroenterology, Department of Medicine, University of California at San Diego, La Jolla, CA, USA
- Department of Family Medicine and Public Health, University of California at San Diego, La Jolla, CA, USA
| | - Kevin J Glaser
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Jun Chen
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Jonathan C Hooker
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Tanya Wolfson
- Computational and Applied Statistics Laboratory, the San Diego Supercomputer Center, University of California at San Diego, La Jolla, CA, USA
| | - Yesenia Covarrubias
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Mark A Valasek
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Kathryn J Fowler
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Yingzhen N Zhang
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Ethan Sy
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Anthony C Gamst
- Computational and Applied Statistics Laboratory, the San Diego Supercomputer Center, University of California at San Diego, La Jolla, CA, USA
| | - Kang Wang
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Adrija Mamidipalli
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA
| | - Jeffrey B Schwimmer
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of California at San Diego, La Jolla, CA, USA
- Department of Gastroenterology, Rady Children's Hospital San Diego, San Diego, CA, USA
| | - Bin Song
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Scott B Reeder
- Departments of Radiology, Medical Physics, Biomedical Engineering, Medicine, and Emergency Medicine, University of Wisconsin, Madison, WI, USA
| | - Meng Yin
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Claude B Sirlin
- Liver Imaging Group, Department of Radiology, University of California at San Diego, La Jolla, CA, 92093-0888, USA.
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10
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Mirra S, Gavaldà-Navarro A, Manso Y, Higuera M, Serrat R, Salcedo MT, Burgaya F, Balibrea JM, Santamaría E, Uriarte I, Berasain C, Avila MA, Mínguez B, Soriano E, Villarroya F. ARMCX3 Mediates Susceptibility to Hepatic Tumorigenesis Promoted by Dietary Lipotoxicity. Cancers (Basel) 2021; 13:cancers13051110. [PMID: 33807672 PMCID: PMC7961652 DOI: 10.3390/cancers13051110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/01/2021] [Indexed: 01/21/2023] Open
Abstract
Simple Summary An excess fat in the liver enhances the susceptibility to hepatic cancer. We found that Armcx3, a protein only known to date to play a role in neural development, is strongly increased in mouse liver in response to lipid availability and proliferation-inducing insults. In patients, the levels of hepatic Armcx3 are also increased in conditions of high exposure of the liver to fat. We wanted to determine the role of Armcx3 in the hepatocarcinogenesis favored by a high-fat diet. We generated mice with genetically driven suppression of Armcx3, and we found that they were protected against experimentally induced hepatic cancer, especially in conditions of a high-fat diet. Armcx3 was also found to promote hepatic cell proliferation through the interaction with Sox9, a known proliferation factor in hepatocellular carcinoma. Armcx3 is identified as a novel factor in meditating propensity to liver cancer in conditions of high hepatic lipid insults. Abstract ARMCX3 is encoded by a member of the Armcx gene family and is known to be involved in nervous system development and function. We found that ARMCX3 is markedly upregulated in mouse liver in response to high lipid availability, and that hepatic ARMCX3 is upregulated in patients with NAFLD and hepatocellular carcinoma (HCC). Mice were subjected to ARMCX3 invalidation (inducible ARMCX3 knockout) and then exposed to a high-fat diet and diethylnitrosamine-induced hepatocarcinogenesis. The effects of experimental ARMCX3 knockdown or overexpression in HCC cell lines were also analyzed. ARMCX3 invalidation protected mice against high-fat-diet-induced NAFLD and chemically induced hepatocarcinogenesis. ARMCX3 invalidation promoted apoptotic cell death and macrophage infiltration in livers of diethylnitrosamine-treated mice maintained on a high-fat diet. ARMCX3 downregulation reduced the viability, clonality and migration of HCC cell lines, whereas ARMCX3 overexpression caused the reciprocal effects. SOX9 was found to mediate the effects of ARMCX3 in hepatic cells, with the SOX9 interaction required for the effects of ARMCX3 on hepatic cell proliferation. In conclusion, ARMCX3 is identified as a novel molecular actor in liver physiopathology and carcinogenesis. ARMCX3 downregulation appears to protect against hepatocarcinogenesis, especially under conditions of high dietary lipid-mediated hepatic insult.
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Affiliation(s)
- Serena Mirra
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, 08007 Barcelona, Spain; (S.M.); (Y.M.); (R.S.); (F.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Aleix Gavaldà-Navarro
- Department of Biochemistry and Molecular Biomedicine and Institute of Biomedicine, University of Barcelona, 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Yasmina Manso
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, 08007 Barcelona, Spain; (S.M.); (Y.M.); (R.S.); (F.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Mónica Higuera
- Liver Diseases Research Group, Vall d’Hebron Institute of Research, VHIR, 08035 Barcelona, Spain; (M.H.); (B.M.)
| | - Román Serrat
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, 08007 Barcelona, Spain; (S.M.); (Y.M.); (R.S.); (F.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María Teresa Salcedo
- Pathology Department, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain;
| | - Ferran Burgaya
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, 08007 Barcelona, Spain; (S.M.); (Y.M.); (R.S.); (F.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - José Maria Balibrea
- Endocrine, Metabolic and Bariatric Surgery Unit, General Surgery Department, Hospital Universitari Vall d’Hebron, 08035 Barcelona, Spain;
| | - Eva Santamaría
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Madrid, Spain; (E.S.);(I.U.); (C.B.); (M.A.A.)
- Hepatology Programme, CIMA-University of Navarra, IdiSNA, 31009 Pamplona, Spain
| | - Iker Uriarte
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Madrid, Spain; (E.S.);(I.U.); (C.B.); (M.A.A.)
- Hepatology Programme, CIMA-University of Navarra, IdiSNA, 31009 Pamplona, Spain
| | - Carmen Berasain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Madrid, Spain; (E.S.);(I.U.); (C.B.); (M.A.A.)
- Hepatology Programme, CIMA-University of Navarra, IdiSNA, 31009 Pamplona, Spain
| | - Matias A. Avila
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Madrid, Spain; (E.S.);(I.U.); (C.B.); (M.A.A.)
- Hepatology Programme, CIMA-University of Navarra, IdiSNA, 31009 Pamplona, Spain
| | - Beatriz Mínguez
- Liver Diseases Research Group, Vall d’Hebron Institute of Research, VHIR, 08035 Barcelona, Spain; (M.H.); (B.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Madrid, Spain; (E.S.);(I.U.); (C.B.); (M.A.A.)
- Liver Unit, Department of Internal Medicine, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain
| | - Eduardo Soriano
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, 08007 Barcelona, Spain; (S.M.); (Y.M.); (R.S.); (F.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (E.S.); (F.V.); Tel.: +34-934-037-117 (E.S.); +34-934-021-525 (F.V.)
| | - Francesc Villarroya
- Department of Biochemistry and Molecular Biomedicine and Institute of Biomedicine, University of Barcelona, 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (E.S.); (F.V.); Tel.: +34-934-037-117 (E.S.); +34-934-021-525 (F.V.)
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11
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Basavarajappa L, Baek J, Reddy S, Song J, Tai H, Rijal G, Parker KJ, Hoyt K. Multiparametric ultrasound imaging for the assessment of normal versus steatotic livers. Sci Rep 2021; 11:2655. [PMID: 33514796 PMCID: PMC7846566 DOI: 10.1038/s41598-021-82153-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/15/2021] [Indexed: 12/13/2022] Open
Abstract
Liver disease is increasing in prevalence across the globe. We present here a multiparametric ultrasound (mpUS) imaging approach for assessing nonalcoholic fatty liver disease (NALFD). This study was performed using rats (N = 21) that were fed either a control or methionine and choline deficient (MCD) diet. A mpUS imaging approach that includes H-scan ultrasound (US), shear wave elastography, and contrast-enhanced US measurements were then performed at 0 (baseline), 2, and 6 weeks. Thereafter, animals were euthanized and livers excised for histological processing. A support vector machine (SVM) was used to find a decision plane that classifies normal and fatty liver conditions. In vivo mpUS results from control and MCD diet fed animals reveal that all mpUS measures were different at week 6 (P < 0.05). Principal component analysis (PCA) showed that the H-scan US data contributed the highest percentage to the classification among the mpUS measurements. The SVM resulted in 100% accuracy for classification of normal and high fat livers and 92% accuracy for classification of normal, low fat, and high fat livers. Histology findings found considerable steatosis in the MCD diet fed animals. This study suggests that mpUS examinations have the potential to provide a comprehensive estimation of the main components of early stage NAFLD.
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Affiliation(s)
- Lokesh Basavarajappa
- Department of Bioengineering, University of Texas at Dallas, BSB 13.929, 800 W Campbell Rd, Richardson, TX, 75080, USA
| | - Jihye Baek
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
| | - Shreya Reddy
- Department of Bioengineering, University of Texas at Dallas, BSB 13.929, 800 W Campbell Rd, Richardson, TX, 75080, USA
| | - Jane Song
- Department of Bioengineering, University of Texas at Dallas, BSB 13.929, 800 W Campbell Rd, Richardson, TX, 75080, USA
| | - Haowei Tai
- Department of Electrical and Computer Engineering, University of Texas at Dallas, Richardson, TX, USA
| | - Girdhari Rijal
- Department of Medical Laboratory Sciences, Tarleton State University, Forth Worth, TX, USA
| | - Kevin J Parker
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
| | - Kenneth Hoyt
- Department of Bioengineering, University of Texas at Dallas, BSB 13.929, 800 W Campbell Rd, Richardson, TX, 75080, USA. .,Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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12
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Quantification of Hepatic Fat Fraction in Patients With Nonalcoholic Fatty Liver Disease: Comparison of Multimaterial Decomposition Algorithm and Fat (Water)-Based Material Decomposition Algorithm Using Single-Source Dual-Energy Computed Tomography. J Comput Assist Tomogr 2021; 45:12-17. [PMID: 33186174 PMCID: PMC7834908 DOI: 10.1097/rct.0000000000001112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
METHODS Hepatic fat fractions were quantified by noncontrast (HFFnon-CE) and contrast-enhanced single-source dual-energy computed tomography in arterial phase (HFFAP), portal venous phase (HFFPVP) and equilibrium phase (HFFEP) using MMD in 19 nonalcoholic fatty liver disease patients. The fat concentration was measured on fat (water)-based images. As the standard of reference, magnetic resonance iterative decomposition of water and fat with echo asymmetry and least-squares estimation-iron quantification images were reconstructed to obtain HFF (HFFIDEAL-IQ). RESULTS There was a strong correlation between HFFnon-CE, HFFAP, HFFPVP, HFFEP, fat concentration and HFFIDEAL-IQ (r = 0.943, 0.923, 0.942, 0.952, and 0.726) with HFFs having better correlation with HFFIDEAL-IQ. Hepatic fat fractions did not significantly differ across scanning phases. The HFFs of 3-phase contrast-enhanced computed tomography had a good consistency with HFFnon-CE. CONCLUSIONS Hepatic fat fraction using MMD has excellent correlation with that of magnetic resonance imaging, is independent of the computed tomography scanning phases, and may be used as a routine technique for quantitative assessment of HFF.
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13
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Kawata N, Takahashi H, Iwane S, Inoue K, Kojima M, Kohno M, Tanaka K, Mori H, Isoda H, Oeda S, Matsuda Y, Egashira Y, Nojiri J, Irie H, Eguchi Y, Anzai K. FIB-4 index-based surveillance for advanced liver fibrosis in diabetes patients. Diabetol Int 2021; 12:118-125. [PMID: 33479587 DOI: 10.1007/s13340-020-00453-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022]
Abstract
Liver fibrosis is associated with lifestyle-related diseases, including diabetes. The identification of diabetic patients with severe liver fibrosis is important, but a simple and reliable diagnostic procedure remains to be determined. We conducted an observational study to evaluate the performance of a FIB-4 index-based screening strategy for the diagnosis of advanced liver fibrosis in patients with diabetes or prediabetes. Two hundred and forty-two patients underwent abdominal imaging in our Study. According to the abdominal imaging findings, fatty liver, liver cirrhosis, and hepatocellular carcinoma were defined, and their association with FIB-4 index evaluated. The prevalences of liver cirrhosis and hepatocellular carcinoma in patients with a high (≥ 2.67; liver cirrhosis: 42.9%, hepatocellular carcinoma: 14.3%) FIB-4 index were significantly higher than in those with an intermediate (1.3 ≤ FIB-4 < 2.67; liver cirrhosis: 1.6%, hepatocellular carcinoma: 0.8%) or low FIB-4 index (< 1.3; liver cirrhosis: 1.2%, hepatocellular carcinoma: 0%). The diagnostic accuracy, specificity, and sensitivity of the FIB-4 index for the diagnosis of liver cirrhosis or hepatocellular carcinoma were 84.3%, 85.5%, and 89.3%, respectively, with an optimized cut-off value of 2.96 (sensitivity = 0.86, specificity = 0.98). Using an optimized cut-off value, FIB-4 index might be useful to identify liver cirrhosis or hepatocellular carcinoma in diabetes patients with high diagnostic accuracy.
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Affiliation(s)
- Nozomi Kawata
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | | | - Kanako Inoue
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Motoyasu Kojima
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Michiko Kohno
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Kenichi Tanaka
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Hitoe Mori
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | | | | | - Yayoi Matsuda
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan.,Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Jyunichi Nojiri
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Hiroyuki Irie
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | | | - Keizo Anzai
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
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14
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Liu TW, Huang CF, Yeh ML, Tsai PC, Jang TY, Huang JF, Dai CY, Chuang WL, Yu ML. Less liver fibrosis marker increment in overweight chronic hepatitis B patients observed by age-adjusted Fibrosis-4 Index. BMJ Open Gastroenterol 2020; 7:bmjgast-2020-000543. [PMID: 33323472 PMCID: PMC7745320 DOI: 10.1136/bmjgast-2020-000543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022] Open
Abstract
Background and aims Chronic hepatitis B patients in Taiwan with no or limited liver injury are not reimbursed for antiviral treatment by the Taiwan National Health Insurance (NHI). Innovative fibrosis marker, age-adjusted Fibrosis-4 Index (FIB4-AA), was implemented to evaluate the tendency of liver fibrosis in these patients. Methods The FIB-4 indices of 256 antiviral treatment-naïve chronic hepatitis B patients at Kaohsiung Medical University Hospital from 2003 to 2019 were reviewed. The difference in initial FIB-4 and last FIB4-AA was treated as a categorical variable, representing the tendency of liver fibrosis in each individual aside from ageing. Logistic regression was implemented to evaluate the three parameters most dependent on increment of FIB4-AA: e seroconversion, body mass index (BMI) and initial FIB-4 index. Results The yearly FIB-4 growth rate of an individual without chronic hepatitis was lower than that of the study group (0.0237 vs 0.0273 for males, 0.02 vs 0.0288 for females). Patients undergoing or completing e seroconversion were less prone to increment of FIB4-AA (p=0.036, OR 0.524). Logistic regression revealed that BMI ≥25 kg/m2 significantly less increment of FIB4-AA (p=0.001, OR 0.383, 95% CI 0.212 to 0.690), while patients with initial FIB-4 <1.29 were prone to increasing liver FIB4-AA (p=0.000, OR 3.687, 95% CI 1.999 to 6.797). Conclusion Chronic hepatitis B patients not meeting the reimbursement criteria of the Taiwan NHI are prone to increment of liver fibrosis marker. Overweight is associated with less increment of fibrosis marker, while initial FIB-4 <1.29 is associated with increasing fibrosis marker.
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Affiliation(s)
- Ta-Wei Liu
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Internal Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chung-Feng Huang
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ming-Lun Yeh
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Pei-Chien Tsai
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tyng-Yuan Jang
- Internal Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jee-Fu Huang
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Yen Dai
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wan-Long Chuang
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ming-Lung Yu
- College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan .,Hepatitis Center, Kaohsiung Medical University Chung Ho Memorial Hospital, Kaohsiung, Taiwan.,Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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15
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Bae CR, Zhang H, Kwon YG. The endothelial dysfunction blocker CU06-1004 ameliorates choline-deficient L-amino acid diet-induced non-alcoholic steatohepatitis in mice. PLoS One 2020; 15:e0243497. [PMID: 33275637 PMCID: PMC7717513 DOI: 10.1371/journal.pone.0243497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a severe, advanced form of non-alcoholic fatty liver disease (NAFLD) that is associated with features of metabolic syndrome and characterized by hepatic steatosis, inflammation, and fibrosis. In addition, NASH is associated with endothelial dysfunction within the hepatic vasculature. Treatment with CU06-1004 (previously called Sac-1004) ameliorates endothelial dysfunction by inhibiting hyperpermeability and inflammation. In this study, we investigated the protective effects of CU06-1004 in a choline-deficient L-amino acid (CDAA)-induced mouse model of NASH for 3 or 6 weeks. Specifically, we evaluated the effects of CU06-1004 on lipid accumulation, inflammation, hepatic fibrosis, and liver sinusoidal endothelial cell (LSEC) capillarization through biochemical analysis, immunohistochemistry, and real-time PCR. We found that the administration of CU06-1004 to mice improved liver triglyceride (TG) and serum alanine aminotransferase (ALT) in this CDAA-induced model of NASH for 6 weeks. In groups of NASH induced mice for both 3 and 6 weeks, CU06-1004 significantly reduced the hepatic expression of genes related to lipogenesis, inflammation, and cell adhesion. However, expression of genes related to hepatic fibrosis and vascular endothelial changes were only decreased in animals with mild NASH. These results suggest that the administration of CU06-1004 suppresses hepatic steatosis, inflammation, fibrosis, and LSEC capillarization in a CDAA-induced mouse model of NASH. This suggests that CU06-1004 has therapeutic potential for the treatment of mild NASH.
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Affiliation(s)
- Cho-Rong Bae
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Haiying Zhang
- CURACLE Co., Ltd., Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
- * E-mail:
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16
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Xie W, Chen S. A nomogram for estimating the probability of nonalcoholic fatty liver disease in a Chinese population: A retrospective cohort study. Medicine (Baltimore) 2020; 99:e23049. [PMID: 33235066 PMCID: PMC7710235 DOI: 10.1097/md.0000000000023049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/06/2020] [Accepted: 10/08/2020] [Indexed: 12/19/2022] Open
Abstract
Studies have showed that dyslipidemia is closely related to nonalcoholic fatty liver disease (NAFLD). However, less attention has been paid to the relationship between early dyslipidemia and long-term risk of NAFLD. Therefore, we aimed to develop a simple-to-use nomogram to predict early dyslipidemia and long-term risk of NAFLD onset.A retrospective cohort study including 3621 employees (including retirees) from 7 companies was conducted between 2012 and 2019. Anthropometric, potential laboratory parameters and abdominal ultrasound were performed at baseline and after a 5-year follow-up. Cox proportional hazards model was used to determine predictors for NAFLD onset. The effects of lipids, age, body mass index (BMI), and serum uric acid (UA) on NAFLD were evaluated with the use of Kaplan-Meier curves (log-rank test). A nomogram was developed based on the Cox proportional hazard model and a 2-piecewise linear regression model. The accuracy of model was evaluated according to the area under the receiver operating characteristic curves.A total of 1545 subjects were included in the final analysis. The mean follow-up time was 52 ± 6.6 months. Of the total subjects, 77.61% were male and 22.39% were female. The mean age at the time of initial visit was 45.21 ± 11.20 years. Five hundred fifty-five subjects (35.92% of all subjects) were finally diagnosed with NAFLD. Variables in the nomogram included age, BMI, triglycerides, high-density lipoprotein, low-density lipoprotein, and UA. The accuracy of the nomogram for predicting 5-year cumulative occurrence of NAFLD was 0.8135 (95% confidence interval: 0.7921-0.8349), and the sensitivity and specificity were 0.8108 and 0.6960, respectively.The combination of age, BMI, triglycerides, high-density lipoprotein, low-density lipoprotein, and UA translated into a nomogram can reliably estimate the incidence of NAFLD within 5 years. It may serve as a decision support tool to determine whether to intervene at an early stage.
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17
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Soon G, Wee A. Updates in the quantitative assessment of liver fibrosis for nonalcoholic fatty liver disease: Histological perspective. Clin Mol Hepatol 2020; 27:44-57. [PMID: 33207115 PMCID: PMC7820194 DOI: 10.3350/cmh.2020.0181] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/26/2020] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease/nonalcoholic steatohepatitis (NAFLD/NASH) is a major cause of liver fibrosis and cirrhosis. Accurate assessment of liver fibrosis is important for predicting disease outcomes and assessing therapeutic response in clinical practice and clinical trials. Although noninvasive tests such as transient elastography and magnetic resonance elastography are preferred where possible, histological assessment of liver fibrosis via semiquantitative scoring systems remains the current gold standard. Collagen proportionate area provides more granularity by measuring the percentage of fibrosis on a continuous scale, but is limited by the absence of architectural input. Although not yet used in routine clinical practice, advances in second harmonic generation/two-photon excitation fluorescence (SHG/TPEF) microscopy imaging show great promise in characterising architectural features of fibrosis at the individual collagen fiber level. Quantification and calculation of different detailed variables of collagen fibers can be used to establish algorithm-based quantitative fibrosis scores (e.g., qFibrosis, q-FPs), which have been validated against fibrosis stage in NAFLD. Artificial intelligence is being explored to further refine and develop quantitative fibrosis scoring methods. SHG-microscopy shows promise as the new gold standard for the quantitative measurement of liver fibrosis. This has reaffirmed the pivotal role of the liver biopsy in fibrosis assessment in NAFLD, at least for the near-future. The ability of SHG-derived algorithms to intuitively detect subtle nuances in liver fibrosis changes over a continuous scale should be employed to redress the efficacy endpoint for fibrosis in NASH clinical trials; this approach may improve the outcomes of the trials evaluating therapeutic response to antifibrotic drugs.
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Affiliation(s)
- Gwyneth Soon
- Department of Pathology, National University Hospital, Singapore, Singapore
| | - Aileen Wee
- Department of Pathology, National University Hospital, Singapore, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Lim HJ, Kim M. EZH2 as a Potential Target for NAFLD Therapy. Int J Mol Sci 2020; 21:ijms21228617. [PMID: 33207561 PMCID: PMC7697020 DOI: 10.3390/ijms21228617] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/11/2020] [Accepted: 11/14/2020] [Indexed: 12/14/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a complex disease that is affected by genetic predisposition and epigenetic modification. Deregulation of epigenetic pathways is now recognized as a frequent event in NAFLD, and understanding the mechanistic roles of these epigenetic factors may lead to new strategies for NAFLD treatment. Enhancer of zeste homolog 2 (EZH2) catalyzes methylation on Lys 27 of histone H3, which leads to chromatin compaction and gene silencing. EZH2 regulates embryonic development and cell lineage determination and is related to many human diseases. Recent studies show that EZH2 has critical roles in liver development, homeostasis, and regeneration. Moreover, aberrant activation of EZH2 promotes NAFLD progression. Several EZH2 inhibitors have been developed and studied both in vitro and in clinical trials. In this review, we summarize our current understanding of the role of EZH2 in NAFLD and highlight its potential as a novel therapeutic target for NAFLD treatment.
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Affiliation(s)
- Hyun Jung Lim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea;
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Mirang Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea;
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34113, Korea
- Correspondence: ; Tel.: +82-42-879-8113
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The Appropriate Opportunity for Evaluating Liver Fibrosis by Using the FIB-4 Index in Patients with Nonalcoholic Fatty Liver Disease in Japan. Diagnostics (Basel) 2020; 10:diagnostics10100842. [PMID: 33086582 PMCID: PMC7603133 DOI: 10.3390/diagnostics10100842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/07/2020] [Accepted: 10/19/2020] [Indexed: 12/16/2022] Open
Abstract
In patients with nonalcoholic fatty liver disease (NAFLD), liver fibrosis is the predictive factor for liver-related events and prognosis. This retrospective study aimed to evaluate longitudinal changes in the FIB-4 index and to determine a strategy for diagnosing and following patients with NAFLD using this index. We analyzed the FIB-4 index at baseline and after 1 and 5 years in 272 consecutive patients with biopsy-proven NAFLD. Of these, 52 patients underwent serial biopsies. The change in the FIB-4 index was correlated with changes in the fibrosis stage among these patients (p = 0.048). The median FIB-4 index was 1.64 at baseline, 1.45 at 1 year, and 1.74 at 5 years. The negative predictive value for advanced fibrosis at a low cutoff point was 90.4/90.1 at baseline/1 year. Its specificity at a high cutoff point increased from 65.0% at baseline to 82.3% at 1 year. Multivariate analysis identified the FIB-4 index at 1 year as a predictive factor for a FIB-4 index > 2.67 at 5 years. A FIB-4 index < 1.30 was acceptable for excluding advanced fibrosis at baseline. In contrast, to evaluate and predict advanced liver fibrosis with the FIB-4 index at a high cutoff point, we should use the index at 1 year after appropriate therapy.
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Martínez Coria A, Estrada-Cruz NA, Ordoñez MIP, Montes-Cortes DH, Manuel-Apolinar L. Echography analysis of musculoskeletal, heart and liver alterations associated with endothelial dysfunction in obese rats. BMC Endocr Disord 2020; 20:124. [PMID: 32795274 PMCID: PMC7427751 DOI: 10.1186/s12902-020-00603-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 07/30/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Modern imaging plays a central role in the care of obese patients, and there is an integral focus on its use and accessibility in individuals who have alterations of various in various organs. The objective in this study was to perform an echographic analysis of musculoskeletal system disorders, endothelial dysfunction and the left ventricle (LV) in obese rats. METHODS Sprague Dawley rats (250 ± 5 g) were obtained and divided into two groups: the control (C) group was fed with a standard diet, and the obese (Ob) group was fed hyper caloric diet with a high fructose-fat content for 4 months. Body weight, cholesterol, triglycerides, glucose, inflammatory cytokines and adhesion molecules (ICAM-1, VCAM-1) were measured. Additionally, two-dimensional echocardiography, abdominal ultrasound and musculoskeletal system studies were performed in the lower extremities. RESULTS The body weight in the Ob group was increased compared to that in the control group, (p < 0.001); in addition, increased glucose, cholesterol and triglyceride concentrations (p < 0.05) as well as increased levels of the adhesion molecules ICAM-1 and, VCAM-1 (p < 0.01) were found in the Ob group vs the C group. On ultrasound, 75% of the Ob group presented fatty liver and distal joint abnormalities. CONCLUSION Obese rats exhibit endothelial dysfunction and musculoskeletal changes, also, fatty liver and articular cysts in the posterior region of the distal lower- extremity joints.
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Affiliation(s)
- Alejandra Martínez Coria
- Hospital de Cardiología, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Norma Angélica Estrada-Cruz
- Unidad de Investigación Médica en Enfermedades Endocrinas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, C.P. 06720, Ciudad de México, Mexico
| | - María Inés Pérez Ordoñez
- Unidad de Investigación Médica en Enfermedades Endocrinas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, C.P. 06720, Ciudad de México, Mexico
| | - Daniel H Montes-Cortes
- Departamento de Urgencias Adultos, Hospital General Centro Médico Nacional "La Raza", Instituto Mexicano del Seguro Social/Coordinación de Enseñanza e Investigación, Hospital Regional 1° de Octubre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Mexico City, Mexico
| | - Leticia Manuel-Apolinar
- Unidad de Investigación Médica en Enfermedades Endocrinas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, C.P. 06720, Ciudad de México, Mexico.
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Maruyama H, Kobayashi K, Kiyono S, Chiba T, Kato N, Ohtsuka M, Ito K, Yamaguchi T, Shiina S. Free fatty acid-based low-impedance liver image: a characteristic appearance in nonalcoholic steatohepatitis (NASH). Eur Radiol Exp 2020; 4:3. [PMID: 31975290 PMCID: PMC6977798 DOI: 10.1186/s41747-019-0137-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022] Open
Abstract
Background To examine in vitro acoustic property of nonalcoholic fatty disease in mouse and human liver to identify nonalcoholic steatohepatitis (NASH). Methods The acoustic impedance (× 106 kg/m2/s) was measured in 35 free fatty acids (FFAs, 500 mmol/L) and histologically-diagnosed liver samples of twelve mice (four control, four simple steatosis [SS], and four NASH) and eight humans (two control, three SS, and three NASH), using 80-MHz acoustic microscopy. The sum of percentage (SP) composition of FFAs (SP-FFAs) was also assessed. Results Median impedance of all FFAs was 0.7 (5 FFAs with impedance 0.7); 17 FFAs with impedance < 0.7 were classified as low-impedance group; and, 13 FFAs with impedance > 0.7 were classified as high-impedance group. The median impedance of the mouse liver decreased from control (1.715), to SS (1.68), to NASH (1.635) (control versus NASH, p = 0.039 without significant differences for the other comparisons, p ≥ 0.1). Similarly, the median impedance of human liver showed decreased from control (1.825), to SS (1.788), to NASH (1.76) (control versus SS, p = 0.023; control versus NASH, p = 0.003; SS versus NASH, p = 0.050). The ratio of SP-FFAs between the low-impedance and high-impedance groups showed an increase in both mice and humans, with significant differences in mice (control versus SS, p < 0.001; control versus NASH, p < 0.001; SS versus NASH, p = 0.003), without significant differences in humans (p ≥ 0.671). Conclusion Lower acoustic impedance based on the intrahepatic composition of FFAs may be characteristic of NASH.
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Affiliation(s)
- Hitoshi Maruyama
- Department of Gastroenterology, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Kazufumi Kobayashi
- Department of Gastroenterology, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Soichiro Kiyono
- Department of Gastroenterology, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Tetsuhiro Chiba
- Department of Gastroenterology, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Naoya Kato
- Department of Gastroenterology, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Masayuki Ohtsuka
- Department of General Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Kazuyo Ito
- Center for Frontier Medical Engineering, Chiba University, 1-33 Yayoicho, Inage, Chiba, 263-8522, Japan
| | - Tadashi Yamaguchi
- Center for Frontier Medical Engineering, Chiba University, 1-33 Yayoicho, Inage, Chiba, 263-8522, Japan
| | - Shuichiro Shiina
- Department of Gastroenterology, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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Laparoscopic Sleeve Gastrectomy Resolves NAFLD: Another Formal Indication for Bariatric Surgery? Obes Surg 2019; 28:4022-4033. [PMID: 30121855 DOI: 10.1007/s11695-018-3466-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Obesity is strongly associated with non-alcoholic fatty liver disease (NAFLD); 66-99% of the obese population could suffer some grade of NAFLD. It can progress into cirrhosis, which is associated to hepatocellular carcinoma, and a liver transplant could be indicated. NAFLD represents the third cause of liver transplant, and it is expected to be the first by 2025. Sleeve gastrectomy (SG) is the most common bariatric procedure over the world. There is scant literature regarding NAFLD after SG, and there are no prospective studies published up to date. OBJECTIVE To evaluate the evolution of NAFLD in patients with obesity after 1 year of SG. METHODS From January 2009 to December 2013, intraoperative liver biopsy was performed in 63 obese patients who underwent SG. Forty-three patients were again biopsied 1 year after surgery. Demographics, body mass index, percentage of excess weight loss, liver function test, lipid panel, glucose panel, and histological changes were prospectively analyzed. RESULTS One hundred percent of the patients reversed or reduced the stage of steatosis or steatohepatitis 12 months after surgery, obtaining a statistically significant difference for both steatosis and steatohepatitis. One patient presented complete cirrhosis regression in the pathology. Neither of the patients had worsened liver histology. CONCLUSIONS NAFLD could be dealt with laparoscopic sleeve gastrectomy, preventing its progression into cirrhosis. SG can be performed in patients with obesity and metabolic syndrome, with NAFLD showing satisfactory results 12 months after surgery. NAFLD should be a formal indication for bariatric surgery.
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Gas6/TAM Signaling Components as Novel Biomarkers of Liver Fibrosis. DISEASE MARKERS 2019; 2019:2304931. [PMID: 31583026 PMCID: PMC6754881 DOI: 10.1155/2019/2304931] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/20/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022]
Abstract
Liver fibrosis consists in the accumulation of extracellular matrix components mainly derived from activated hepatic stellate cells. This is commonly the result of chronic liver injury repair and represents an important health concern. As liver biopsy is burdened with many drawbacks, not surprisingly there is great interest to find new reliable noninvasive methods. Among the many are new potential fibrosis biomarkers under study, some of the most promising represented by the growth arrest-specific gene 6 (Gas6) serum protein and its family of tyrosine kinase receptors, namely, Tyro3, Axl, and MERTK (TAM). Gas6/TAM system (mainly, Axl and MERTK) has in fact recently emerged as an important player in the progression of liver fibrosis. This review is aimed at giving an overall perspective of the roles played by these molecules in major chronic liver diseases. The most promising findings up to date acknowledge that both Gas6 and its receptor serum levels (such as sAxl and, probably, sMERTK) have been shown to potentially allow for easy and accurate measurement of hepatic fibrosis progression, also providing indicative parameters of hepatic dysfunction. Although most of the current scientific evidence is still preliminary and there are no in vivo validation studies on large patient series, it still looks very promising to imagine a possible future prognostic role for these biomarkers in the multidimensional assessment of a liver patient. One may also speculate on a potential role for this system targeting (e.g., with small molecule inhibitors against Axl) as a therapeutic strategy for liver fibrosis management, always bearing in mind that any such therapeutic approach might face toxicity.
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Salic K, Kleemann R, Wilkins-Port C, McNulty J, Verschuren L, Palmer M. Apical sodium-dependent bile acid transporter inhibition with volixibat improves metabolic aspects and components of non-alcoholic steatohepatitis in Ldlr-/-.Leiden mice. PLoS One 2019; 14:e0218459. [PMID: 31233523 PMCID: PMC6590809 DOI: 10.1371/journal.pone.0218459] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023] Open
Abstract
Interruption of bile acid recirculation through inhibition of the apical sodium-dependent bile acid transporter (ASBT) is a promising strategy to alleviate hepatic cholesterol accumulation in non-alcoholic steatohepatitis (NASH), and improve the metabolic aspects of the disease. Potential disease-attenuating effects of the ASBT inhibitor volixibat (5, 15, and 30 mg/kg) were investigated in high-fat diet (HFD)-fed Ldlr-/-.Leiden mice over 24 weeks. Plasma and fecal bile acid levels, plasma insulin, lipids, and liver enzymes were monitored. Final analyses included liver histology, intrahepatic lipids, mesenteric white adipose tissue mass, and liver gene profiling. Consistent with its mechanism of action, volixibat significantly increased the total amount of bile acid in feces. At the highest dose, volixibat significantly attenuated the HFD-induced increase in hepatocyte hypertrophy, hepatic triglyceride and cholesteryl ester levels, and mesenteric white adipose tissue deposition. Non-alcoholic fatty liver disease activity score (NAS) was significantly lower in volixibat-treated mice than in the HFD controls. Gene profiling showed that volixibat reversed the inhibitory effect of the HFD on metabolic master regulators, including peroxisome proliferator-activated receptor-γ coactivator-1β, insulin receptor, and sterol regulatory element-binding transcription factor 2. Volixibat may have beneficial effects on physiological and metabolic aspects of NASH pathophysiology.
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Affiliation(s)
- Kanita Salic
- TNO, Department of Metabolic Health Research, Leiden, Netherlands
| | - Robert Kleemann
- TNO, Department of Metabolic Health Research, Leiden, Netherlands
| | - Cynthia Wilkins-Port
- Shire LLC, now part of Takeda, Cambridge, Massachusetts, United States of America
| | - John McNulty
- Shire LLC, now part of Takeda, Cambridge, Massachusetts, United States of America
| | - Lars Verschuren
- TNO, Department of Microbiology and Systems Biology, Zeist, Netherlands
| | - Melissa Palmer
- Shire LLC, now part of Takeda, Cambridge, Massachusetts, United States of America
- * E-mail:
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Yamauchi A, Kamiyoshi A, Sakurai T, Miyazaki H, Hirano E, Lim HS, Kaku T, Shindo T. Development of a mouse iron overload-induced liver injury model and evaluation of the beneficial effects of placenta extract on iron metabolism. Heliyon 2019; 5:e01637. [PMID: 31193082 PMCID: PMC6515419 DOI: 10.1016/j.heliyon.2019.e01637] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/16/2019] [Accepted: 04/30/2019] [Indexed: 12/11/2022] Open
Abstract
Hepatic iron deposition is seen in cases of chronic hepatitis and cirrhosis, and is a hallmark of a poorer prognosis. Iron deposition is also found in non-alcoholic steatohepatitis (NASH) patients. We have now developed a mouse model of NASH with hepatic iron deposition by combining a methione- and choline-deficient (MCD) diet with an iron-overload diet. Using this model, we evaluated the effects of human placenta extract (HPE), which has been shown to ameliorate the pathology of NASH. Four-week-old male C57BL/6 mice were fed the MCD diet with 2% iron for 12 weeks. In liver sections, iron deposition was first detected around the portal vein after 1 week. From there it spread throughout the parenchyma. Biliary iron concentrations were continuously elevated throughout the entire 12-week diet. As a compensatory response, the diet caused elevation of serum hepcidin, which accelerates excretion of iron from the body. Accumulation of F4/80-positive macrophages was detected within the sinusoids from the first week onward, and real-time PCR analysis revealed elevated hepatic expression of genes related inflammation and oxidative stress. In the model mice, HPE treatment led to a marked reduction of hepatic iron deposition with a corresponding increase in biliary iron excretion. Macrophage accumulation was much reduced by HPE treatment, as was the serum oxidation-reduction potential, an index of oxidative stress. These data indicate that by suppressing inflammation, oxidative stress and iron deposition, and enhancing iron excretion, HPE effectively ameliorates iron overload-induced liver injury. HPE administration may thus be an effective strategy for treating NASH.
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Affiliation(s)
- Akihiro Yamauchi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan.,Japan Bio Products Co., Ltd., Tokyo, Japan
| | - Akiko Kamiyoshi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Takayuki Sakurai
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | | | | | | | | | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
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Yoo JJ, Kim W, Kim MY, Jun DW, Kim SG, Yeon JE, Lee JW, Cho YK, Park SH, Sohn JH. Recent research trends and updates on nonalcoholic fatty liver disease. Clin Mol Hepatol 2019; 25:1-11. [PMID: 30086613 PMCID: PMC6435971 DOI: 10.3350/cmh.2018.0037] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 05/12/2018] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), together with metabolic syndrome and obesity, has shown a rapid increase in prevalence worldwide and is emerging as a major cause of chronic liver disease and liver transplantation. Among the various phenotypes of NAFLD, nonalcoholic steatohepatitis (NASH) is highly likely to progress to development of end-stage liver disease and cardiometabolic disease, resulting in liver-related and non-liver-related mortality. Nonetheless, there is no standardized pharmacotherapy against NASH and many drugs are under development in ongoing clinical trials. To develop a successful anti-NASH drug, it is necessary to select an appropriate target population and treatment outcomes depending on whether the mode of action is anti-metabolic, anti-inflammatory or anti-fibrotic. Recently, innovative surrogate markers have been investigated to replace hard outcomes such as liver histology and mortality and reduce the clinical trial duration. Currently, several drugs with fast track designation are being tested in phase III clinical trials, and many other drugs have moved into phase II clinical trials. Both lean NAFLD and typical obese NAFLD have been extensively studied and genetic variants such as PNPLA3 and TM6SF2 have been identified as significant risk factors for lean NAFLD. In the near future, noninvasive biomarkers and effective targeted therapies for NASH and associated fibrosis are required to develop precision medicine and tailored therapy according to various phenotypes of NAFLD.
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Affiliation(s)
- Jeong-Ju Yoo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Won Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Moon Young Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Dae Won Jun
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hanyang University Seoul Hospital, Seoul, Korea
| | - Sang Gyune Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jong-Eun Yeon
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jin Woo Lee
- Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Yong Kyun Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Hoon Park
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - Joo Hyun Sohn
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
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Takaki A, Kawano S, Uchida D, Takahara M, Hiraoka S, Okada H. Paradoxical Roles of Oxidative Stress Response in the Digestive System before and after Carcinogenesis. Cancers (Basel) 2019; 11:cancers11020213. [PMID: 30781816 PMCID: PMC6406746 DOI: 10.3390/cancers11020213] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/03/2019] [Accepted: 02/11/2019] [Indexed: 01/17/2023] Open
Abstract
Oxidative stress is recognized as a cancer-initiating stress response in the digestive system. It is produced through mitochondrial respiration and induces DNA damage, resulting in cancer cell transformation. However, recent findings indicate that oxidative stress is also a necessary anticancer response for destroying cancer cells. The oxidative stress response has also been reported to be an important step in increasing the anticancer response of newly developed molecular targeted agents. Oxidative stress might therefore be a cancer-initiating response that should be downregulated in the precancerous stage in patients at risk of cancer but an anticancer cell response that should not be downregulated in the postcancerous stage when cancer cells are still present. Many commercial antioxidant agents are marketed as “cancer-eliminating agents” or as products to improve one’s health, so cancer patients often take these antioxidant agents. However, care should be taken to avoid harming the anticancerous oxidative stress response. In this review, we will highlight the paradoxical effects of oxidative stress and antioxidant agents in the digestive system before and after carcinogenesis.
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Affiliation(s)
- Akinobu Takaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Seiji Kawano
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Daisuke Uchida
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Masahiro Takahara
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
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Factors associated with the Severity of Findings on Hepatic Transient Elastography among Persons with Type 2 Diabetes and Fatty Liver. J ASEAN Fed Endocr Soc 2019; 34:134-143. [PMID: 33442148 PMCID: PMC7784217 DOI: 10.15605/jafes.034.02.03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/28/2019] [Indexed: 12/20/2022] Open
Abstract
Objective This study aims to determine the relationship between the different factors associated with the severity of Fibroscan with CAP findings among patients with Type 2 diabetes and fatty liver. Methodology This is a cross-sectional study. Seven hundred four Fibroscan with Controlled Attenuation Parameter (CAP) results were electronically retrieved from a diagnostic center. 285 charts of diabetic patients with fatty liver on ultrasound were reviewed. 164 patients with fatty liver on ultrasound and Fibroscan with CAP were included in the study. Several factors were analysed in relation to the severity of Fibroscan with CAP findings in the study group. Results Fifty five point five percent (55.5%) (91/164) had significant fibrosis and cirrhosis. Hepatic steatosis prevalence was 96% (158/164). Diabetes >5 years (OR 1.75), HbA1c >7% (OR 2.25) and high SGPT levels (OR 2.39) were associated with liver fibrosis and cirrhosis. BMI >25 kg/m2 (OR 1.45), triglyceride levels >150 mg/dl (OR 1.31) and HbA1c >7% (OR 1.74) were associated with hepatic steatosis. Conclusion Factors associated with the severity of hepatic fibrosis, cirrhosis and steatosis included above normal BMI, disease duration of >5 years, poor glycemic control and elevated levels of ALT, and serum triglycerides.
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Abstract
Purpose To investigate [11C]acetate PET-surrogate parameter of fatty acid synthase activity—as suitable tool for diagnosis and monitoring of liver steatosis. Methods In this retrospective study, data were obtained from 83 prostatic carcinoma patients from 1/2008 to 1/2014. Mean HU was calculated from unenhanced CT of all patients from liver with liver HU less than 40 as threshold for liver steatosis. SUVmax of the liver and of the blood pool in thoracic aorta (as background for calculation of a liver/background ratio [SUVl/b]) was measured. t test was used with a P < 0.05 considered as statistically significant difference and ROC analysis was used for calculating specificity and sensitivity. Results 19/83 patients (20%) had diagnosis of hepatic steatosis according to CT. Uptake of [11C]acetate was significantly higher in patients with hepatic steatosis as compared to control group (SUVmax 7.96 ± 2.0 vs. 5.48 ± 2.3 [P < 0.001]). There was also a significant correlation between both SUVmax (r = − 0.52, P < 0.001) and SUVl/b (r = − 0.59, P < 0.001) with the density (HU) of the liver. In ROC analysis for detection of liver steatosis SUVmax (threshold: 5.86) had a sensitivity of 94% and specificity of 69% with an AUC of 0.81. Increasing body mass index is correlated with the severity of steatosis. Conclusion We showed for the first time that hepatic steatosis associates with increased [11C]acetate uptake. Also, severity of steatosis correlates with [11C]acetate uptake. [11C]acetate uptake PET seems promising for the assessment of liver steatosis. Electronic supplementary material The online version of this article (10.1007/s00261-018-1558-4) contains supplementary material, which is available to authorized users.
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Zhang YN, Fowler KJ, Hamilton G, Cui JY, Sy EZ, Balanay M, Hooker JC, Szeverenyi N, Sirlin CB. Liver fat imaging-a clinical overview of ultrasound, CT, and MR imaging. Br J Radiol 2018; 91:20170959. [PMID: 29722568 PMCID: PMC6223150 DOI: 10.1259/bjr.20170959] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hepatic steatosis is a frequently encountered imaging finding that may indicate chronic liver disease, the most common of which is non-alcoholic fatty liver disease. Non-alcoholic fatty liver disease is implicated in the development of systemic diseases and its progressive phenotype, non-alcoholic steatohepatitis, leads to increased liver-specific morbidity and mortality. With the rising obesity epidemic and advent of novel therapeutics aimed at altering metabolism, there is a growing need to quantify and monitor liver steatosis. Imaging methods for assessing steatosis range from simple and qualitative to complex and highly accurate metrics. Ultrasound may be appropriate in some clinical instances as a screening modality to identify the presence of abnormal liver morphology. However, it lacks sufficient specificity and sensitivity to constitute a diagnostic modality for instigating and monitoring therapy. Newer ultrasound techniques such as quantitative ultrasound show promise in turning qualitative assessment of steatosis on conventional ultrasound into quantitative measurements. Conventional unenhanced CT is capable of detecting and quantifying moderate to severe steatosis but is inaccurate at diagnosing mild steatosis and involves the use of radiation. Newer CT techniques, like dual energy CT, show potential in expanding the role of CT in quantifying steatosis. MRI proton-density fat fraction is currently the most accurate and precise imaging biomarker to quantify liver steatosis. As such, proton-density fat fraction is the most appropriate noninvasive end point for steatosis reduction in clinical trials and therapy response assessment.
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Affiliation(s)
- Yingzhen N Zhang
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Kathryn J Fowler
- Department of Radiology, Washington University School of Medicine, Washington University, St. Louis, MO, USA
| | - Gavin Hamilton
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Jennifer Y Cui
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Ethan Z Sy
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Michelle Balanay
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Jonathan C Hooker
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Nikolaus Szeverenyi
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
| | - Claude B Sirlin
- Department of Radiology, Liver Imaging Group, University of California San Diego, San Diego, CA, USA
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Siebers N, Palmer M, Silberg DG, Jennings L, Bliss C, Martin PT. Absorption, Distribution, Metabolism, and Excretion of [ 14C]-Volixibat in Healthy Men: Phase 1 Open-Label Study. Eur J Drug Metab Pharmacokinet 2018; 43:91-101. [PMID: 28702877 PMCID: PMC5794849 DOI: 10.1007/s13318-017-0429-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background and Objectives Volixibat is a potent inhibitor of the apical sodium-dependent bile acid transporter in development for the treatment of nonalcoholic steatohepatitis. This phase 1, open-label study investigated the absorption, distribution, metabolism, and excretion of [14C]-volixibat in heathy men. Methods Eligible men (n = 8) aged 18–50 years (body mass index 18.0–30.0 kg/m2; weight >50 kg) received a single oral dose of [14C]-volixibat 50 mg containing ~5.95 µCi radioactivity. The primary objectives were to assess the pharmacokinetics of [14C]-volixibat and to determine the total radioactivity in whole blood, plasma, urine, and feces at pre-selected time points over 6 days. The secondary objectives were to characterize metabolites and to assess the safety and tolerability. Results Low concentrations of volixibat (range 0–0.179 ng/mL) were detected in plasma up to 8 h following administration; the pharmacokinetic parameters could not be calculated. No radioactivity was observed in plasma or whole blood. The percentage (mean ± standard deviation) of total radioactivity in urine was 0.01 ± 0.007%. The vast majority (92.3 ± 5.25%) of volixibat was recovered in feces (69.2 ± 33.1% within 24 h). Unchanged volixibat was the only radioactive component detected in feces. Adverse events were mild in severity and mostly gastrointestinal. Changes in laboratory values were not clinically meaningful. Conclusions Following oral administration, [14C]-volixibat was excreted unchanged from the parent compound almost exclusively via fecal excretion, indicating that the drug is minimally absorbed. Consistent with other studies, adverse events were primarily gastrointestinal in nature. ClinicalTrials.gov identifier NCT02571192. Electronic supplementary material The online version of this article (doi:10.1007/s13318-017-0429-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nicholas Siebers
- Covance Clinical Research Unit, 3402 Kinsman Boulevard, Madison, WI, 53704, USA.
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Noor-E-Alam SM. Management of Hepatocellular Carcinoma: Bangladesh Perspective. Euroasian J Hepatogastroenterol 2018; 8:52-53. [PMID: 29963462 PMCID: PMC6024033 DOI: 10.5005/jp-journals-10018-1258] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/10/2018] [Indexed: 12/02/2022] Open
Abstract
Bangladesh is one of the countries facing huge burden of hepatocellular carcinoma (HCC). Hepatocellular carcinoma is the third commonest cancer in the country and it is just behind to cancer of the lung and cancer of the stomach. Hepatitis B virus (HBV) is responsible for 66% of HCC in Bangladesh. Presumptive prevalence of HBV and hepatitis C virus (HCV) may be as high as 5.4 and 0.84%, respectively, in Bangladesh, and liver diseases occupied 8 to 12% of admission in medicine wards of Public Medical College. In this mini review, I would like to highlight the impact of HBV and HCV in the development of HCC and the management of HCC from a Bangladesh perspective. How to cite this article: Noor-E-Alam SM. Management of Hepatocellular Carcinoma: Bangladesh Perspective. Euroasian J Hepato-Gastroenterol 2018;8(1):52-53.
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Affiliation(s)
- Sheikh M Noor-E-Alam
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
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Nath P, P Singh S. Nonalcoholic Fatty Liver Disease: Time to Take the Bull by the Horns. Euroasian J Hepatogastroenterol 2018; 8:47-51. [PMID: 29963461 PMCID: PMC6024035 DOI: 10.5005/jp-journals-10018-1257] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 01/25/2018] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in the world affecting almost one-fourth of the population. It may progress to nonalcoholic steatohepatitis (NASH), cirrhosis, end-stage liver disease, and liver cancer in the long run. Besides, it may make the natural history in other chronic liver diseases worse too. Furthermore, patients of NAFLD more often suffer from metabolic syndrome, ischemic heart disease, and extrahepatic malignancies than others, leading to a lower overall survival than the general population. Obesity and sedentary lifestyle are among the most important risk factors for NAFLD apart from increasing age, male sex, and certain genetic factors. Due to the rising incidence, possible adverse consequences, and the futile available treatment options, prevention is the key to tackle this health menace. Spreading awareness, adopting a healthy lifestyle with appropriate dietary modifications, regular physical activity are the cornerstones for challenging this unfolding monster. How to cite this article: Nath P, Singh SP. Nonalcoholic Fatty Liver Disease: Time to Take the Bull by the Horns. Euroasian J Hepato-Gastroenterol 2018;8(1):47-51.
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Affiliation(s)
- Preetam Nath
- Department of Gastroenterology, Kalinga Institute of Medical Sciences, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha India
| | - Shivaram P Singh
- Department of Gastroenterology, Srirama Chandra Bhanja Medical College & Hospital, Cuttack, Odisha, India
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Palmer M, Jennings L, Silberg DG, Bliss C, Martin P. A randomised, double-blind, placebo-controlled phase 1 study of the safety, tolerability and pharmacodynamics of volixibat in overweight and obese but otherwise healthy adults: implications for treatment of non-alcoholic steatohepatitis. BMC Pharmacol Toxicol 2018; 19:10. [PMID: 29548345 PMCID: PMC5857122 DOI: 10.1186/s40360-018-0200-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 03/07/2018] [Indexed: 12/13/2022] Open
Abstract
Background Accumulation of toxic free cholesterol in hepatocytes may cause hepatic inflammation and fibrosis. Volixibat inhibits bile acid reuptake via the apical sodium bile acid transporter located on the luminal surface of the ileum. The resulting increase in bile acid synthesis from cholesterol could be beneficial in patients with non-alcoholic steatohepatitis. This adaptive dose-finding study investigated the safety, tolerability, pharmacodynamics, and pharmacokinetics of volixibat. Methods Overweight and obese adults were randomised 3:1 to double-blind volixibat or placebo, respectively, for 12 days. Volixibat was initiated at a once-daily dose of 20 mg, 40 mg or 80 mg. Based on the assessment of predefined safety events, volixibat dosing was either escalated or reduced. Other dose regimens (titrations and twice-daily dosing) were also evaluated. Assessments included safety, tolerability, stool hardness, faecal bile acid (FBA) excretion, and serum levels of 7α-hydroxy-4-cholesten-3-one (C4) and lipids. Results All 84 randomised participants (volixibat, 63; placebo, 21) completed the study, with no serious adverse events at doses of up to 80 mg per day (maximum assessed dose). The median number of daily bowel evacuations increased from 1 (range 0–4) to 2 (0–8) during volixibat treatment, and stool was looser with volixibat than placebo. Volixibat was minimally absorbed; serum levels were rarely quantifiable at any dose or sampling time point, thereby precluding pharmacokinetic analyses. Mean daily FBA excretion was 930.61 μmol (standard deviation [SD] 468.965) with volixibat and 224.75 μmol (195.403) with placebo; effects were maximal at volixibat doses ≥20 mg/day. Mean serum C4 concentrations at day 12 were 98.767 ng/mL (standard deviation, 61.5841) with volixibat and 16.497 ng/mL (12.9150) with placebo. Total and low-density lipoprotein cholesterol levels decreased in the volixibat group, with median changes of − 0.70 mmol/L (range − 2.8 to 0.4) and − 0.6990 mmol/L (− 3.341 to 0.570), respectively. Conclusions This study indicates that maximal inhibition of bile acid reabsorption, as assessed by FBA excretion, occurs at volixibat doses of ≥20 mg/day in obese and overweight adults, without appreciable change in gastrointestinal tolerability. These findings guided dose selection for an ongoing phase 2 study in patients with non-alcoholic steatohepatitis. Trial registration ClinicalTrials.gov identifier: NCT02287779 (registration first received 6 November 2014). Electronic supplementary material The online version of this article (10.1186/s40360-018-0200-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Melissa Palmer
- Global Development Lead Hepatology, Shire, 300 Shire Way, Lexington, MA, 02421, USA.
| | - Lee Jennings
- Global Development Lead Hepatology, Shire, 300 Shire Way, Lexington, MA, 02421, USA
| | - Debra G Silberg
- Shire International GmbH, Zahlerweg 10, 6301, Zug, Switzerland
| | - Caleb Bliss
- Global Development Lead Hepatology, Shire, 300 Shire Way, Lexington, MA, 02421, USA
| | - Patrick Martin
- Global Development Lead Hepatology, Shire, 300 Shire Way, Lexington, MA, 02421, USA
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Tiessen RG, Kennedy CA, Keller BT, Levin N, Acevedo L, Gedulin B, van Vliet AA, Dorenbaum A, Palmer M. Safety, tolerability and pharmacodynamics of apical sodium-dependent bile acid transporter inhibition with volixibat in healthy adults and patients with type 2 diabetes mellitus: a randomised placebo-controlled trial. BMC Gastroenterol 2018; 18:3. [PMID: 29304731 PMCID: PMC5756385 DOI: 10.1186/s12876-017-0736-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 12/22/2017] [Indexed: 12/12/2022] Open
Abstract
Background Pathogenesis in non-alcoholic steatohepatitis (NASH) involves abnormal cholesterol metabolism and hepatic accumulation of toxic free cholesterol. Apical sodium-dependent bile acid transporter (ASBT) inhibition in the terminal ileum may facilitate removal of free cholesterol from the liver by reducing recirculation of bile acids (BAs) to the liver, thereby stimulating new BA synthesis from cholesterol. The aim of this phase 1 study in adult healthy volunteers (HVs) and patients with type 2 diabetes mellitus (T2DM) was to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of ASBT inhibition with volixibat (SHP626; formerly LUM002). Methods Participants were randomised 3:1 to receive once-daily oral volixibat (0.5 mg, 1 mg, 5 mg or 10 mg) or placebo for 28 days in two cohorts (HV and T2DM). Assessments included safety, faecal BA and serum 7α-hydroxy-4-cholesten-3-one (C4; BA synthesis biomarker). Results Sixty-one individuals were randomised (HVs: placebo, n = 12; volixibat, n = 38; T2DM: placebo, n = 3; volixibat, n = 8). No deaths or treatment-related serious adverse events were reported. Mild or moderate gastrointestinal adverse events were those most frequently reported with volixibat. With volixibat, mean total faecal BA excretion on day 28 was ~1.6–3.2 times higher in HVs (643.73–1239.3 μmol/24 h) and ~8 times higher in T2DM (1786.0 μmol/24 h) than with placebo (HVs: 386.93 μmol/24 h; T2DM: 220.00 μmol/24 h). With volixibat, mean C4 concentrations increased by ~1.3–5.3-fold from baseline to day 28 in HVs and by twofold in T2DM. Conclusions Volixibat was generally well tolerated. Increased faecal BA excretion and serum C4 levels support the mechanistic rationale for exploring ASBT inhibition in NASH. The study was registered with the Dutch clinical trial authority (Centrale Commissie Mensgebonden Onderzoek; trial registration number NL44732.056.13; registered 24 May 2013). Electronic supplementary material The online version of this article (10.1186/s12876-017-0736-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Renger G Tiessen
- Early Development Services, Pharmaceutical Research Associates (PRA) Health Sciences, Van Swietenlaan 6, 9728 NZ Groningen, PO Box 8144, 9702, Groningen, KC, Netherlands.
| | - Ciara A Kennedy
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
| | - Bradley T Keller
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
| | - Nancy Levin
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
| | - Lisette Acevedo
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
| | - Bronislava Gedulin
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
| | - Andre A van Vliet
- Early Development Services, Pharmaceutical Research Associates (PRA) Health Sciences, Van Swietenlaan 6, 9728 NZ Groningen, PO Box 8144, 9702, Groningen, KC, Netherlands
| | - Alejandro Dorenbaum
- Lumena Pharmaceuticals Inc. (part of the Shire group of companies), 12531 High Bluff Drive, Suite 110, San Diego, CA, 92130, USA
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Centrilobular ductular reaction correlates with fibrosis stage and fibrosis progression in non-alcoholic steatohepatitis. Mod Pathol 2018; 31:150-159. [PMID: 28862262 DOI: 10.1038/modpathol.2017.115] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 12/17/2022]
Abstract
There is increasing interest in the role of ductular reaction as part of the pathogenesis and characteristic histology of non-alcoholic steatohepatitis. However, earlier studies did not separately assess the contribution of periportal and centrilobular zone ductular reaction over the spectrum of non-alcoholic steatohepatitis, and their clinical significance remains unclear. We herein analyzed the character of ductular reaction in each hepatic zone in non-alcoholic steatohepatitis biopsies and for the first time evaluated the prognostic value of ductular reaction in baseline biopsies as a predictor of progression of fibrosis in subsequent biopsies. A total of 90 non-alcoholic steatohepatitis liver biopsies were included in the cohort. The relationships among ductular reaction, grade, stage, and other common histopathologic findings in non-alcoholic steatohepatitis were analyzed in a cross-sectional manner. Among these patients, a total of 47 patients underwent sequential liver biopsies in the absence of effective treatment. The frequency of ductular reaction and the other histopathologic parameters in the initial biopsies were analyzed as predictors of progression of fibrosis in the second biopsies in a longitudinal analysis. Centrilobular ductular reaction was identified in 90% of patients and 38% of centrilobular zones. The prevalence of centrilobular ductular reaction increased as non-alcoholic steatohepatitis grade increased (P=0.0002) and also as stage of fibrosis increased (P<0.0001) in the cross-sectional study. In the longitudinal study, the frequency of centrilobular ductular reaction in the initial biopsies was significantly higher in the group of progressors and correlated with the rate of fibrosis progression (P=0.02). Centrilobular ductular reaction is common in non-alcoholic steatohepatitis and its presence correlates significantly with increasing necroinflammatory activity and fibrosis stage. Development of centrilobular ductular reaction appears to predict progression of fibrosis in subsequent biopsies.
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Nasr P, Ignatova S, Kechagias S, Ekstedt M. Natural history of nonalcoholic fatty liver disease: A prospective follow-up study with serial biopsies. Hepatol Commun 2017; 2:199-210. [PMID: 29404527 PMCID: PMC5796332 DOI: 10.1002/hep4.1134] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/04/2017] [Accepted: 11/14/2017] [Indexed: 12/13/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease in the world. The complete natural history of NAFLD is unknown because few high‐quality follow‐up studies have been conducted. Our aim was to find variables predicting disease severity through an extended follow‐up with serial biopsies. In a prospective cohort study, 129 patients who enrolled between 1988 and 1993 were asked to participate in a follow‐up study on two occasions; biochemical, clinical, and histologic data were documented. The mean time between biopsies was 13.7 (±1.7) and 9.3 (±1.0) years, respectively. At the end of the study period, 12 patients (9.3%) had developed end‐stage liver disease and 34% had advanced fibrosis. Out of the 113 patients with baseline low fibrosis (<3), 16% developed advanced fibrosis. Fibrosis progression did not differ among the different stages of baseline fibrosis (P = 0.374). Fifty‐six patients (43%) had isolated steatosis, of whom 9% developed advanced fibrosis (3 patients with biopsy‐proven fibrosis stage F3‐F4 and 2 patients with end‐stage liver disease). Fibrosis stage, ballooning, and diabetes were more common in patients who developed end‐stage liver disease; however, there were no baseline clinical, histologic, or biochemical variables that predicted clinical significant disease progression. Conclusion: NAFLD is a highly heterogeneous disease, and it is surprisingly hard to predict fibrosis progression. Given enough time, NAFLD seems to have a more dismal prognosis then previously reported, with 16% of patients with fibrosis stage <3 developing advanced fibrosis and 9.3% showing signs of end‐stage liver disease. (Hepatology Communications 2018;2:199–210)
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Affiliation(s)
- Patrik Nasr
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences Linköping University Linköping Sweden
| | - Simone Ignatova
- Department of Clinical Pathology and Clinical Genetics, Department of Clinical and Experimental Medicine Linköping University Linköping Sweden
| | - Stergios Kechagias
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences Linköping University Linköping Sweden
| | - Mattias Ekstedt
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences Linköping University Linköping Sweden
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Abstract
Purpose of Review The purpose of this review is to summarize the latest knowledge on the natural history of non-alcoholic fatty liver disease (NAFLD). The review focuses on mortality, liver-related complications, and histological course. Recent Findings Studies during the last decade have established NAFLD as a potentially progressive liver disease. Age and diabetes are the strongest clinical predictors of progressive disease. Fibrosis stage is the most important histological variable to predict mortality and liver-related complications. So far, no study has been able to show that non-alcoholic steatohepatitis at baseline predicts mortality or future liver-related complications when adjusting for fibrosis. Summary The outlines of the natural history of NAFLD have become clearer during the last decade. There is limited data on factors that predict clinical progression. Prospective longitudinal studies are needed to help us predict worse outcome in individual patients.
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Affiliation(s)
- Mattias Ekstedt
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Patrik Nasr
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Stergios Kechagias
- Department of Gastroenterology and Hepatology, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
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Brouha SS, Nguyen P, Bettencourt R, Sirlin CB, Loomba R. Increased severity of liver fat content and liver fibrosis in non-alcoholic fatty liver disease correlate with epicardial fat volume in type 2 diabetes: A prospective study. Eur Radiol 2017; 28:1345-1355. [PMID: 29058029 DOI: 10.1007/s00330-017-5075-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/09/2017] [Accepted: 09/12/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To determine whether severity of non-alcoholic fatty liver disease (NAFLD) and liver fibrosis quantitatively assessed in individuals with diabetes mellitus (DM)-2 correlate with increased coronary heart disease (CHD) risk using non-invasive markers. METHODS We conducted a single-centre, prospective, cross-sectional study in 100 consecutive diabetic individuals without known CHD recruited between March 2013 and September 2014. History, physical examination, serum markers, cardiac computed tomography (CT), magnetic resonance (MR) imaging-estimated proton density fat fraction (PDFF) and MR elastography (MRE) were obtained for 95 participants. Written informed consent was provided. Institutional review board approved this study. Spearman rank correlation was performed to assess for correlations. Multiple linear regression model determined independent predictors of epicardial adipose tissue (EAT) volume. RESULTS A p value < 0.05 determined statistical significance. The EAT volume was higher in the NAFLD group, defined as MR-imaging PDFF ≥ 5 %, compared to the non-NAFLD group (126.5 ml (IQR 80.9) versus 85.4 ml (IQR 44.7), p=0.002). MR imaging-PDFF correlated with EAT (r=0.42, p < 0.0001). MR imaging-PDFF and liver fibrosis were independently associated with EAT. CONCLUSIONS Higher liver fat content and liver fibrosis may portend worse cardiovascular risk in diabetics. KEY POINTS • EAT volume is higher in diabetic individuals with NAFLD. • Liver fat content is positively correlated with EAT. • Liver fat content and liver fibrosis were independently associated with EAT. • Higher liver fat content and fibrosis may adversely affect cardiovascular risk.
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Affiliation(s)
- Sharon S Brouha
- Department of Radiology, University of California at San Diego, 200 W. Arbor Drive #8756, La Jolla, San Diego, CA, 92103, USA.
| | - Phirum Nguyen
- NAFLD Research Center and Division of Gastroenterology, Department of Medicine, University of California, San Diego, La Jolla, CA, USA.,Liver Imaging Group, Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Ricki Bettencourt
- NAFLD Research Center and Division of Gastroenterology, Department of Medicine, University of California, San Diego, La Jolla, CA, USA.,Liver Imaging Group, Department of Radiology, University of California, San Diego, La Jolla, CA, USA.,Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, USA
| | - Claude B Sirlin
- Liver Imaging Group, Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Rohit Loomba
- NAFLD Research Center and Division of Gastroenterology, Department of Medicine, University of California, San Diego, La Jolla, CA, USA.,Liver Imaging Group, Department of Radiology, University of California, San Diego, La Jolla, CA, USA.,Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, USA
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Yamauchi A, Kamiyoshi A, Koyama T, Iinuma N, Yamaguchi S, Miyazaki H, Hirano E, Kaku T, Shindo T. Placental extract ameliorates non-alcoholic steatohepatitis (NASH) by exerting protective effects on endothelial cells. Heliyon 2017; 3:e00416. [PMID: 29022011 PMCID: PMC5629350 DOI: 10.1016/j.heliyon.2017.e00416] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 08/15/2017] [Accepted: 09/18/2017] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a severe form of fatty liver disease that is defined by the presence of inflammation and fibrosis, ultimately leading to cirrhosis and hepatocellular carcinoma. Treatment with human placental extract (HPE) reportedly ameliorates the hepatic injury. We evaluated the effect of HPE treatment in a mouse model of NASH. In the methione- and choline-deficient (MCD) diet-induced liver injury model, fibrosis started from regions adjacent to the sinusoids. We administered the MCD diet with high-salt loading (8% NaCl in the drinking water) to mice deficient in the vasoprotective molecule RAMP2 for 5 weeks, with or without HPE. In both the HPE and control groups, fibrosis was seen in regions adjacent to the sinusoids, but the fibrosis was less pronounced in the HPE-treated mice. Levels of TNF-α and MMP9 expression were also significantly reduced in HPE-treated mice, and oxidative stress was suppressed in the perivascular region. In addition, HPE dose-dependently increased survival of cultured endothelial cells exposed to 100 μM H2O2, and it upregulated expression of eNOS and the anti-apoptotic factors bcl-2 and bcl-xL. From these observations, we conclude that HPE ameliorates NASH-associated pathologies by suppressing inflammation, oxidative stress and fibrosis. These beneficially effects of HPE are in part attributable to its protective effects on liver sinusoidal endothelial cells. HPE could thus be an attractive therapeutic candidate with which to suppress progression from simple fatty liver to NASH.
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Affiliation(s)
- Akihiro Yamauchi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan.,Japan Bio Products Co., Ltd., Tokyo, Japan
| | - Akiko Kamiyoshi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Teruhide Koyama
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Nobuyoshi Iinuma
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | | | | | | | | | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Matsumoto, Japan
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Utsunomiya H, Yamamoto Y, Takeshita E, Tokumoto Y, Tada F, Miyake T, Hirooka M, Abe M, Kumagi T, Matsuura B, Ikeda Y, Hiasa Y. Upregulated absorption of dietary palmitic acids with changes in intestinal transporters in non-alcoholic steatohepatitis (NASH). J Gastroenterol 2017; 52:940-954. [PMID: 28062946 DOI: 10.1007/s00535-016-1298-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 12/14/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Palmitic acid is an important risk factor for the pathogenesis of non-alcoholic steatohepatitis (NASH), but changes in palmitic acid intestinal absorption in NASH are unclear. The aim of this study was to clarify changes in palmitic acid intestinal absorption and their association with the pathogenesis of NASH. METHODS A total of 106 participants were recruited to the study, of whom 33 were control subjects (control group), 32 were patients with NASH Brunt stage 1-2 [early NASH (e-NASH)], and 41 were patients with NASH Brunt stage 3-4 [advanced NASH (a-NASH)]. 13C-labeled palmitate was administered directly into the duodenum of all participants by gastrointestinal endoscopy. Breath 13CO2 levels were measured to quantify palmitic acid absorption, and serum Apolipoprotein B-48 (ApoB-48) concentrations were measured after a test meal to quantify absorbed chylomicrons. Expressions of fatty acid (FA) transporters were also examined. The associations of breath 13CO2 levels with hepatic steatosis, fibrosis and insulin resistance was evaluated using laboratory data, elastography results and liver histology findings. RESULTS Overall, 13CO2 excretion was significantly higher in e-NASH patients than in the control subjects and a-NASH patients (P < 0.01). e-NASH patients had higher serum ApoB-48 levels, indicating increased palmitic acid transport via chylomicrons in these patients. Jejunal mRNA and protein expressions of microsomal triglyceride transfer protein and cluster of differentiation 36 were also increased in both NASH patient groups. The 13CO2 excretion of e-NASH patients was significantly correlated with the degree of hepatic steatosis, fibrosis and insulin resistance (P = 0.005, P < 0.001, P = 0.019, respectively). CONCLUSIONS Significantly upregulated palmitic acid absorption by activation of its transporters was evident in patients with NASH, and clinical progression of NASH was related to palmitic acid absorption. These dietary changes are associated with the onset and progression of NASH.
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Affiliation(s)
- Hiroki Utsunomiya
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yasunori Yamamoto
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Eiji Takeshita
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yoshio Tokumoto
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Fujimasa Tada
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Teruki Miyake
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Masashi Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Masanori Abe
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Teru Kumagi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Bunzo Matsuura
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yoshio Ikeda
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yoichi Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan.
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42
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Benedict M, Zhang X. Non-alcoholic fatty liver disease: An expanded review. World J Hepatol 2017; 9:715-732. [PMID: 28652891 PMCID: PMC5468341 DOI: 10.4254/wjh.v9.i16.715] [Citation(s) in RCA: 497] [Impact Index Per Article: 62.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/08/2017] [Accepted: 04/18/2017] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) encompasses the simple steatosis to more progressive steatosis with associated hepatitis, fibrosis, cirrhosis, and in some cases hepatocellular carcinoma. NAFLD is a growing epidemic, not only in the United States, but worldwide in part due to obesity and insulin resistance leading to liver accumulation of triglycerides and free fatty acids. Numerous risk factors for the development of NAFLD have been espoused with most having some form of metabolic derangement or insulin resistance at the core of its pathophysiology. NAFLD patients are at increased risk of liver-related as well as cardiovascular mortality, and NAFLD is rapidly becoming the leading indication for liver transplantation. Liver biopsy remains the gold standard for definitive diagnosis, but the development of noninvasive advanced imaging, biochemical and genetic tests will no doubt provide future clinicians with a great deal of information and opportunity for enhanced understanding of the pathogenesis and targeted treatment. As it currently stands several medications/supplements are being used in the treatment of NAFLD; however, none seem to be the "magic bullet" in curtailing this growing problem yet. In this review we summarized the current knowledge of NAFLD epidemiology, risk factors, diagnosis, pathogenesis, pathologic changes, natural history, and treatment in order to aid in further understanding this disease and better managing NAFLD patients.
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Affiliation(s)
- Mark Benedict
- Mark Benedict, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Xuchen Zhang
- Mark Benedict, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06510, United States
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43
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Younossi ZM, Stepanova M, Rafiq N, Henry L, Loomba R, Makhlouf H, Goodman Z. Nonalcoholic steatofibrosis independently predicts mortality in nonalcoholic fatty liver disease. Hepatol Commun 2017; 1:421-428. [PMID: 29404470 PMCID: PMC5721410 DOI: 10.1002/hep4.1054] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 04/16/2017] [Indexed: 12/18/2022] Open
Abstract
Nonalcoholic steatohepatitis (NASH) is the progressive form of nonalcoholic fatty liver disease (NAFLD). The minimal pathologic criteria for NASH include hepatic steatosis, ballooning degeneration, and lobular inflammation. The resolution of NASH, which relies on the loss of ballooning degeneration, is subject to sampling and observer variability in pathologic interpretation. Ballooning is associated with advanced hepatic fibrosis in cross‐sectional studies but is not a predictor of mortality in NAFLD. Fibrosis staging, while still subject to some sampling variability, has less observer variability and is a robust predictor of liver‐related mortality in NAFLD. In this study, we hypothesize that, regardless of the diagnosis of NASH, the presence of steatofibrosis (steatosis accompanied by fibrosis) regardless of other pathologic features can also be a robust predictor of mortality in NAFLD. We used our previously reported cohort of patients with NAFLD with liver biopsies and long‐term mortality follow‐up. Cox proportional hazard models were used to determine the predictors of overall and liver‐related mortality. Of 209 enrolled NAFLD subjects, 97 can be classified as having steatofibrosis. During follow‐up (median 150 months), 64 (30.6%) patients died, with 18 (8.6%) from liver‐related causes. Adjusted for age, both diagnostic categories of NASH and steatofibrosis were significantly and similarly associated with liver‐related mortality (adjusted hazard ratio [aHR], 9.9; 95% confidence interval (CI), 1.3‐74.9; P = 0.027; aHR, 6.7; 95% CI, 1.5‐29.8; P = 0.013, respectively). However, only steatofibrosis showed independent association with overall mortality (aHR, 1.76; 95% CI, 1.02‐3.05; P = 0.043). Conclusion: Steatofibrosis and NASH are similarly associated with liver‐related mortality, but only steatofibrosis is associated with overall mortality in patients with NAFLD. Given the inherent observer variability in ballooning degeneration, a key diagnostic component of NASH, we suggest that steatofibrosis should be considered a viable diagnostic classification for NAFLD subjects at risk or adverse outcomes and provides a simpler endpoint for clinical trials of therapeutic agents. (Hepatology Communications 2017;1:421–428)
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Affiliation(s)
- Zobair M Younossi
- Center for Liver Diseases, Department of Medicine Inova Fairfax Hospital Falls Church VA.,Betty and Guy Beatty Center for Integrated Research Inova Health System Falls Church VA
| | - Maria Stepanova
- Center for Outcomes Research in Liver Diseases Washington DC.,Betty and Guy Beatty Center for Integrated Research Inova Health System Falls Church VA
| | - Nila Rafiq
- Center for Liver Diseases, Department of Medicine Inova Fairfax Hospital Falls Church VA.,Betty and Guy Beatty Center for Integrated Research Inova Health System Falls Church VA
| | - Linda Henry
- Center for Outcomes Research in Liver Diseases Washington DC.,Betty and Guy Beatty Center for Integrated Research Inova Health System Falls Church VA
| | - Rohit Loomba
- NAFLD Research Center University of California San Diego San Diego CA
| | - Hala Makhlouf
- Cancer Diagnosis Program, National Cancer Institute National Institutes of Health Bethesda MD
| | - Zachary Goodman
- Center for Liver Diseases, Department of Medicine Inova Fairfax Hospital Falls Church VA.,Betty and Guy Beatty Center for Integrated Research Inova Health System Falls Church VA
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44
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Kitade H, Chen G, Ni Y, Ota T. Nonalcoholic Fatty Liver Disease and Insulin Resistance: New Insights and Potential New Treatments. Nutrients 2017; 9:E387. [PMID: 28420094 PMCID: PMC5409726 DOI: 10.3390/nu9040387] [Citation(s) in RCA: 336] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/06/2017] [Accepted: 04/10/2017] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common chronic liver disorders worldwide. It is associated with clinical states such as obesity, insulin resistance, and type 2 diabetes, and covers a wide range of liver changes, ranging from simple steatosis to non-alcoholic steatohepatitis (NASH), liver cirrhosis, and hepatocellular carcinoma. Metabolic disorders, such as lipid accumulation, insulin resistance, and inflammation, have been implicated in the pathogenesis of NAFLD, but the underlying mechanisms, including those that drive disease progression, are not fully understood. Both innate and recruited immune cells mediate the development of insulin resistance and NASH. Therefore, modifying the polarization of resident and recruited macrophage/Kupffer cells is expected to lead to new therapeutic strategies in NAFLD. Oxidative stress is also pivotal for the progression of NASH, which has generated interest in carotenoids as potent micronutrient antioxidants in the treatment of NAFLD. In addition to their antioxidative function, carotenoids regulate macrophage/Kupffer cell polarization and thereby prevent NASH progression. In this review, we summarize the molecular mechanisms involved in the pathogenesis of NAFLD, including macrophage/Kupffer cell polarization, and disturbed hepatic function in NAFLD. We also discuss dietary antioxidants, such as β-cryptoxanthin and astaxanthin, that may be effective in the prevention or treatment of NAFLD.
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Affiliation(s)
- Hironori Kitade
- Department of Cell Metabolism and Nutrition, Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan.
| | - Guanliang Chen
- Department of Cell Metabolism and Nutrition, Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan.
| | - Yinhua Ni
- Department of Cell Metabolism and Nutrition, Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan.
| | - Tsuguhito Ota
- Department of Cell Metabolism and Nutrition, Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan.
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Ponnusamy S, Tran QT, Thiyagarajan T, Miller DD, Bridges D, Narayanan R. An estrogen receptor β-selective agonist inhibits non-alcoholic steatohepatitis in preclinical models by regulating bile acid and xenobiotic receptors. Exp Biol Med (Maywood) 2017; 242:606-616. [PMID: 28092182 DOI: 10.1177/1535370216688569] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) affects 8-10 million people in the US and up to 75% of obese individuals. Despite this, there are no approved oral therapeutics to treat NASH and therefore the need for novel approaches exists. The estrogen receptor β (ER-β)-selective agonist, β-LGND2, inhibits body weight and white adipose tissue, and increases metabolism, resulting in higher energy expenditure and thermogenesis. Due to favorable effects of β-LGND2 on obesity, we hypothesized that β-LGND2 will prevent NASH directly by reducing lipid accumulation in the liver or indirectly by favorably changing body composition. Male C57BL/6 mice fed with high fat diet (HFD) for 10 weeks or methionine choline-deficient diet for four weeks and treated with vehicle exhibited altered liver weights by twofold and increased serum transaminases by 2-6-folds. These changes were not observed in β-LGND2-treated animals. Infiltration of inflammatory cells and collagen deposits, an indication of fibrosis, were observed in the liver of mice fed with HFD for 10 weeks, which were effectively blocked by β-LGND2. Gene expression studies in the liver indicate that pregnane X receptor target genes were significantly increased by HFD, and the increase was inhibited by β-LGND2. On the other hand, metabolomics indicate that bile acid metabolites were significantly increased by β-LGND2. These studies demonstrate that an ER-β agonist might provide therapeutic benefits in NASH by directly modulating the function of xenobiotic and bile acid receptors in the liver, which have important functions in the liver, and indirectly, as demonstrated before, by inhibiting adiposity. Impact statement Over 75-90% of those classified as clinically obese suffer from co-morbidities, the most common of which is non-alcoholic steatohepatitis (NASH). While there are currently no effective treatment approaches for NASH, data presented here provide preliminary evidence that an estrogen receptor β-selective ligand could have the potential to reduce lipid accumulation and inflammation, and protect liver from NASH.
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Affiliation(s)
- Suriyan Ponnusamy
- 1 Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Quynh T Tran
- 2 Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Thirumagal Thiyagarajan
- 1 Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Duane D Miller
- 3 Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Dave Bridges
- 4 Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38103, USA.,5 Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA.,6 Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI 48104, USA (present address)
| | - Ramesh Narayanan
- 1 Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38103, USA.,7 West Cancer Center, Memphis, TN 38103, USA
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46
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Akuta N, Kawamura Y, Suzuki F, Saitoh S, Arase Y, Fujiyama S, Sezaki H, Hosaka T, Kobayashi M, Suzuki Y, Kobayashi M, Ikeda K, Kumada H. Analysis of association between circulating miR-122 and histopathological features of nonalcoholic fatty liver disease in patients free of hepatocellular carcinoma. BMC Gastroenterol 2016; 16:141. [PMID: 27955628 PMCID: PMC5153912 DOI: 10.1186/s12876-016-0557-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/07/2016] [Indexed: 01/17/2023] Open
Abstract
Background The association between circulating microRNA-122 (miR-122) and histopathological features of nonalcoholic fatty liver disease (NAFLD) remains unclear. Methods The association of serum miR-122 levels with histopathological features of NAFLD (steatosis, ballooning, lobular inflammation, and stage, as histological components of nonalcoholic steatohepatitis) was examined in serial liver biopsies from 36 hepatocellular carcinoma (HCC)-free Japanese patients with histopathologically-proven NAFLD. The median interval between first and second liver biopsies was 4.6 years. Results In patients who showed improvement of histopathological scores (steatosis, ballooning, and stage), serum miR-122 levels were significantly lower at second biopsy than first biopsy. In patients who showed no improvement, the changes at second biopsy were not different from those at first biopsy. There were significant and strong associations between serum miR-122 ratio (ratio of level at second biopsy to that at first biopsy) and changes in histopathological scores (of steatosis, lobular inflammation, and stage). There were also significant and strong associations between serum miR-122 ratio and changes in other clinical parameters, including aspartate aminotransferase and alanine aminotransferase. Conclusions Longitudinal examination of serial liver biopsies showed the association of serum miR-122 with histopathological features of HCC-free NAFLD patients. Electronic supplementary material The online version of this article (doi:10.1186/s12876-016-0557-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Norio Akuta
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan.
| | - Yusuke Kawamura
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Fumitaka Suzuki
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Satoshi Saitoh
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Yasuji Arase
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Shunichiro Fujiyama
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Hitomi Sezaki
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Tetsuya Hosaka
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Masahiro Kobayashi
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Yoshiyuki Suzuki
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | | | - Kenji Ikeda
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Hiromitsu Kumada
- Department of Hepatology, Toranomon Hospital and Okinaka Memorial Institute for Medical Research, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
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Bower G, Toma T, Harling L, Jiao LR, Efthimiou E, Darzi A, Athanasiou T, Ashrafian H. Bariatric Surgery and Non-Alcoholic Fatty Liver Disease: a Systematic Review of Liver Biochemistry and Histology. Obes Surg 2016; 25:2280-9. [PMID: 25917981 DOI: 10.1007/s11695-015-1691-x] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is becoming a leading cause of global liver disease that is associated with the rising prevalence of obesity worldwide. There is now increasing clinical and mechanistic evidence reporting on the metabolic and weight loss effects of bariatric surgery on improving NAFLD in obese patients. OBJECTIVES The aim of this paper was to quantify the effects of bariatric surgery on NAFLD by appraising the modulation between pre- and post-operative liver enzyme levels (as markers of liver injury) and liver histology. METHODS A systematic review of studies reporting pre-operative and post-operative liver enzymes or liver histology was done in obese patients with NAFLD undergoing bariatric surgery. Data were meta-analysed using random-effects modelling. Subgroup analysis, quality scoring and risk of bias were assessed. RESULTS Bariatric surgery is associated with a significant reduction in the weighted incidence of a number of histological features of NAFLD including steatosis (50.2 and 95 %CI of 35.5-65.0), fibrosis (11.9 and 95 %CI of 7.4-16.3 %), hepatocyte ballooning (67.7 and 95 %CI 56.9-78.5) and lobular inflammation (50.7 and 95 %CI 26.6-74.8 %). Surgery is also associated with a reduction in liver enzyme levels, with statistically significant reductions in ALT (11.36 u/l, 95 %CI 8.36-14.39), AST (3.91 u/l, 95 %CI 2.23-5.59), ALP (10.55 u/l, 95 %CI 4.40-16.70) and gamma-GT (18.39 u/l, 95 %CI 12.62-24.16). Heterogeneity in results was high. CONCLUSIONS Bariatric surgery is associated with a significant improvement in both histological and biochemical markers of NAFLD. Future studies must focus on higher levels of evidence to better identify the benefits of bariatric surgery on liver disease in order to enhance future treatment strategies in the management of NAFLD.
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Affiliation(s)
- Guy Bower
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Tania Toma
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Leanne Harling
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Long R Jiao
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Hepatobiliary and Pancreatic Surgery, Imperial College Healthcare NHS Trust, London, UK
| | - Evangelos Efthimiou
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Bariatric Surgery, Chelsea and Westminster Hospital, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Thanos Athanasiou
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Hutan Ashrafian
- Department of Surgery and Cancer, Imperial College London, London, UK. .,Department of Bariatric Surgery, Chelsea and Westminster Hospital, London, UK. .,Department of Hepatobiliary and Pancreatic Surgery, Imperial College Healthcare NHS Trust, London, UK.
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48
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Novel Action of Carotenoids on Non-Alcoholic Fatty Liver Disease: Macrophage Polarization and Liver Homeostasis. Nutrients 2016; 8:nu8070391. [PMID: 27347998 PMCID: PMC4963867 DOI: 10.3390/nu8070391] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/15/2016] [Accepted: 06/22/2016] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. It is characterized by a wide spectrum of hepatic changes, which may progress to non-alcoholic steatohepatitis (NASH) and cirrhosis. NAFLD is considered a hepatic manifestation of metabolic syndrome; however, mechanisms underlying the onset and progression of NAFLD are still unclear. Resident and recruited macrophages are key players in the homeostatic function of the liver and in the progression of NAFLD to NASH. Progress has been made in understanding the molecular mechanisms underlying the polarized activation of macrophages. New NAFLD therapies will likely involve modification of macrophage polarization by restraining M1 activation or driving M2 activation. Carotenoids are potent antioxidants and anti-inflammatory micronutrients that have been used to prevent and treat NAFLD. In addition to their antioxidative action, carotenoids can regulate macrophage polarization and thereby halt the progression of NASH. In this review, we summarize the molecular mechanisms of macrophage polarization and the function of liver macrophages/Kupffer cells in NAFLD. From our review, we propose that dietary carotenoids, such as β-cryptoxanthin and astaxanthin, be used to prevent or treat NAFLD through the regulation of macrophage polarization and liver homeostasis.
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49
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Calzadilla Bertot L, Adams LA. The Natural Course of Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2016; 17:ijms17050774. [PMID: 27213358 PMCID: PMC4881593 DOI: 10.3390/ijms17050774] [Citation(s) in RCA: 446] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 05/12/2016] [Accepted: 05/12/2016] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent form of chronic liver disease in the world, paralleling the epidemic of obesity and Type 2 diabetes mellitus (T2DM). NAFLD exhibits a histological spectrum, ranging from “bland steatosis” to the more aggressive necro-inflammatory form, non-alcoholic steatohepatitis (NASH) which may accumulate fibrosis to result in cirrhosis. Emerging data suggests fibrosis, rather than NASH per se, to be the most important histological predictor of liver and non-liver related death. Nevertheless, only a small proportion of individuals develop cirrhosis, however the large proportion of the population affected by NAFLD has led to predictions that NAFLD will become a leading cause of end stage liver disease, hepatocellular carcinoma (HCC), and indication for liver transplantation. HCC may arise in non-cirrhotic liver in the setting of NAFLD and is associated with the presence of the metabolic syndrome (MetS) and male gender. The MetS and its components also play a key role in the histological progression of NAFLD, however other genetic and environmental factors may also influence the natural history. The importance of NAFLD in terms of overall survival extends beyond the liver where cardiovascular disease and malignancy represents additional important causes of death.
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Affiliation(s)
- Luis Calzadilla Bertot
- School of Medicine and Pharmacology, the University of Western Australia, Nedlands, WA 6009, Australia.
| | - Leon Anton Adams
- School of Medicine and Pharmacology, the University of Western Australia, Nedlands, WA 6009, Australia.
- Department of Hepatology, Sir Charles Gairdner Hospital, Nedlands, WA 6009, Australia.
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Abdulla A, Reynolds C, Hesham A-Kader H. Non-Alcoholic Fatty Liver Disease (NAFLD): The Search for a Cure. EUROPEAN MEDICAL JOURNAL 2016. [DOI: 10.33590/emj/10314771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
An alarming rise of obesity and, along with it, non-alcoholic fatty liver disease (NAFLD), has been observed in the USA and the rest of the world. NAFLD, the most common cause of chronic liver disease in many developed countries, is not always a benign disorder and considering its growing nature, will have a serious impact on healthcare systems worldwide. The search continues for a suitable therapy for this disorder; the therapy ideally needs to be safe, effective, and affordable. The biggest hurdle in the process of developing such a therapy is our lack of a complete understanding of the pathogenesis of the disease.
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