Systematic Reviews
Copyright ©The Author(s) 2023.
World J Gastroenterol. Feb 21, 2023; 29(7): 1219-1234
Published online Feb 21, 2023. doi: 10.3748/wjg.v29.i7.1219
Table 2 Characteristics of the cohort study included in this systematic review examining the interactive effects between single-nucleotide polymorphisms in genes encoding methyl-metabolizing enzymes and one-carbon metabolism-related dietary compounds on colorectal cancer risk
Ref.
Country
Study cohort (age, yr)
No. participants (M/W)
No. incident cases
Follow-up length, y
Gene (SNP)
Nutrient/alcohol
Method for measuring nutrition intake
Outcome (RR, 95%CI)
Adjustments to RR
NOS
SNP
Nutrient/alcohol
Interaction
de Vogel et al[9]NetherlandsNetherlands Cohort Study on diet and cancer (55-69)58279/62573734 CRC7.3MTHFR (rs1801133, rs1801131), MTR (rs1805087), MTRR (rs1801394), DNMT3B (rs2424913, rs406193), EHMT1 (rs4634736), EHMT2 (rs535586), PRDM2 (rs2235515)Dietary folate, Met, vitamins B2 and B6, alcoholValidated FFQ (self-reported)UnkUnk≤ 1 rare allele in folate metabolizing enzymes–vitamin B2 (T3 vs T1): 0.30, (0.11-0.81), P-trend = 0.005. Rare allele of DNMT3B C>T (rs406193)–vitamin B6 (T3 vs T1): 1.90 (1.00-3.60), P-trend = 0.04. Common allele of PRDM2 G>A (rs2235515)–vitamin B6 (T3 vs T1): 1.49 (1.00-2.22), P-trend = 0.03. No assocAge, alcohol consumption, BMI, CRC family history, intake of energy and alcohol, sex, and smoking status9