PMID- 34250034 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210713 IS - 2297-055X (Print) IS - 2297-055X (Electronic) IS - 2297-055X (Linking) VI - 8 DP - 2021 TI - Methylenetetrahydrofolate Reductase Gene C677T Polymorphism-Dietary Pattern Interaction on Hyperhomocysteinemia in a Chinese Population: A Cross-Sectional Study. PG - 638322 LID - 10.3389/fcvm.2021.638322 [doi] LID - 638322 AB - Background and aim: Hyperhomocysteinemia (Hhcy) has been recognized as a risk factor of several chronic diseases. There is accumulating evidence that both genetic and dietary factors had a notable impact on the risk of Hhcy. The present study aims to investigate the interaction effect on Hhcy between methylenetetrahydrofolate reductase (MTHFR) gene C677T polymorphism and dietary intake. Methods: Data were collected in a cross-sectional survey conducted in China; 3,966 participants with complete information on sociodemographic characteristics, anthropometric measurements, and dietary intake were included in the analyses. Dietary patterns were identified by factor analysis combined with cluster analysis. Blood samples were collected and MTHFR C677T genotypes were tested. Both the multiplicative statistical model and the additive model were conducted to investigate the interactive effects. Results: Proportions of MTHFR C677T genotypes among participants were 29.2% for TT, 47.4% for CT, and 23.4% for CC. Three dietary patterns were identified, namely, the balanced pattern, the snack pattern, and the high-meat pattern. Compared with the balanced pattern, the other two patterns were associated with an elevated risk of Hhcy [the snack pattern: odds ratio (OR) 1.2, 95% confidence interval (CI) 1.0-1.5; the high-meat pattern: OR 1.3, 95% CI 1.1-1.6] after adjustment for age group, gender, residential region, and MTHFR C677T genotypes. A multiplicative interaction between the high-meat pattern and MTHFR 677TT genotype was observed, and synergistic effects between both the snack pattern and the high-meat pattern with MTHFR 677TT were identified. Conclusion: Our results indicated that MTHFR C677T polymorphism and dietary patterns had interactive effects on Hhcy among the Chinese population. Subsequent targeted and appropriate dietary guidelines should be recommended for high-risk populations or patients of Hhcy carrying specific genotypes. CI - Copyright (c) 2021 Leng, Zhao, Zhang, Wu, Wang, Wu, Chen and Zeng. FAU - Leng, Song AU - Leng S AD - Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese People's Liberation Army General Hospital, Beijing, China. AD - Health Management Center, The Second Hospital of Dalian Medical University, Dalian, China. FAU - Zhao, Ai AU - Zhao A AD - Vanke School of Public Health, Tsinghua University, Beijing, China. FAU - Zhang, Jian AU - Zhang J AD - Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China. FAU - Wu, Wei AU - Wu W AD - Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China. FAU - Wang, Qian AU - Wang Q AD - Health Management Center, The Second Hospital of Dalian Medical University, Dalian, China. FAU - Wu, Shan AU - Wu S AD - Health Management Center, The Second Hospital of Dalian Medical University, Dalian, China. FAU - Chen, Li AU - Chen L AD - Health Management Center, The Second Hospital of Dalian Medical University, Dalian, China. FAU - Zeng, Qiang AU - Zeng Q AD - Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese People's Liberation Army General Hospital, Beijing, China. LA - eng PT - Journal Article DEP - 20210624 PL - Switzerland TA - Front Cardiovasc Med JT - Frontiers in cardiovascular medicine JID - 101653388 PMC - PMC8263928 OTO - NOTNLM OT - MTHFR C677T OT - dietary pattern OT - hyperhomocysteinemia OT - interaction OT - methylenetetrahydrofolate reductase COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/07/13 06:00 MHDA- 2021/07/13 06:01 PMCR- 2021/01/01 CRDT- 2021/07/12 05:57 PHST- 2021/01/14 00:00 [received] PHST- 2021/05/24 00:00 [accepted] PHST- 2021/07/12 05:57 [entrez] PHST- 2021/07/13 06:00 [pubmed] PHST- 2021/07/13 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fcvm.2021.638322 [doi] PST - epublish SO - Front Cardiovasc Med. 2021 Jun 24;8:638322. doi: 10.3389/fcvm.2021.638322. eCollection 2021.