Minireviews
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Methodol. Jun 20, 2025; 15(2): 101430
Published online Jun 20, 2025. doi: 10.5662/wjm.v15.i2.101430
Fecal microbiota transplantation in allergic diseases
Ece Tüsüz Önata, Öner Özdemir
Ece Tüsüz Önata, Öner Özdemir, Division of Pediatric Allergy and Immunology, Medical Faculty, Sakarya University, Adapazarı 54100, Sakarya, Türkiye
Author contributions: Tüsüz Önata E and Özdemir Ö performed the research, wrote the article. All authors have read and approved the final manuscript.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Öner Özdemir, MD, Professor, Division of Pediatric Allergy and Immunology, Medical Faculty, Sakarya University, Adnan Menderes cad, Adapazarı 54100, Sakarya, Türkiye. ozdemir_oner@hotmail.com
Received: September 13, 2024
Revised: October 17, 2024
Accepted: November 1, 2024
Published online: June 20, 2025
Processing time: 74 Days and 15.1 Hours
Abstract

Microorganisms such as bacteria, fungi, viruses, parasites living in the human intestine constitute the human intestinal microbiota. Dysbiosis refers to compositional and quantitative changes that negatively affect healthy gut microbiota. In recent years, with the demonstration that many diseases are associated with dysbiosis, treatment strategies targeting the correction of dysbiosis in the treatment of these diseases have begun to be investigated. Faecal microbiota transplantation (FMT) is the process of transferring faeces from a healthy donor to another recipient in order to restore the gut microbiota and provide a therapeutic benefit. FMT studies have gained popularity after probiotic, prebiotic, symbiotic studies in the treatment of dysbiosis and related diseases. FMT has emerged as a potential new therapy in the treatment of allergic diseases as it is associated with the maintenance of intestinal microbiota and immunological balance (T helper 1/T helper 2 cells) and thus suppression of allergic responses. In this article, the definition, application, safety and use of FMT in allergic diseases will be discussed with current data.

Keywords: Microbiota; Dysbiosis; Faecal microbiota transplantation; Allergic diseases

Core Tip: Fecal microbiota transplantation (FMT) studies have gained popularity after probiotic, prebiotic, symbiotic studies in the treatment of dysbiosis and related diseases. FMT is the process of transferring faeces from a healthy donor to another recipient in order to restore the gut microbiota and provide a therapeutic benefit.