PMID- 31111486 OWN - NLM STAT- MEDLINE DCOM- 20200630 LR - 20200630 IS - 1469-1809 (Electronic) IS - 0003-4800 (Linking) VI - 83 IP - 6 DP - 2019 Nov TI - Association between the BHMT gene rs3733890 polymorphism and the efficacy of oral folate therapy in patients with hyperhomocysteinemia. PG - 434-444 LID - 10.1111/ahg.12326 [doi] AB - Oral folate is currently the most common treatment for hyperhomocysteinemia (HHcy), which seriously threatens human health, but its efficacy is unsatisfactory. Betaine-homocysteine methyltransferase (BHMT) is a key enzyme that regulates Hcy metabolism. We investigated the association between the BHMT rs3733890 and the efficacy of oral folate therapy for HHcy in the Chinese Han population and analysed the effects of gene-environmental interactions on the efficacy. Blood samples were collected from 1071 eligible patients at baseline, and these individuals received subsequent folate treatment for 90 days. A total of 638 patients included in the final analysis were grouped into the treatment success group or the treatment failure group based on posttreatment Hcy levels. Hcy concentrations were measured by fluorescence polarization immunoassay. Time-of-flight mass spectrometry (MassArray system) was used to assess the genotype of BHMT rs3733890. Stratified analyses based on additive models and generalized multifactor dimensionality reduction were used to explore gene-environmental interactions. The genotype distribution presented distinct differences in the two groups. The mutant genotype and allele had significantly increased risk of treatment failure (p < 0.05). Furthermore, synergistic effects of the BHMT rs3733890 polymorphism with environmental risk factors (smoking, drinking, past history) on the efficacy of therapy were also found. However, future, large well-designed studies, as well as mechanistic studies, are still needed to validate our findings. CI - (c) 2019 John Wiley & Sons Ltd/University College London. FAU - Ren, Bingnan AU - Ren B AUID- ORCID: 0000-0003-2651-1637 AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Tian, Dandan AU - Tian D AD - People's Hospital of Henan Province, Zhengzhou, Henan, China. FAU - Wang, Lianke AU - Wang L AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Han, Han AU - Han H AD - Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Wang, Wenhua AU - Wang W AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Tian, Huizi AU - Tian H AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Yue, Limin AU - Yue L AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. FAU - Zhang, Weidong AU - Zhang W AD - Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China. LA - eng GR - 132102310431/Natural Science Foundation of Henan Province/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190520 PL - England TA - Ann Hum Genet JT - Annals of human genetics JID - 0416661 RN - 935E97BOY8 (Folic Acid) RN - EC 2.1.1.5 (BHMT protein, human) RN - EC 2.1.1.5 (Betaine-Homocysteine S-Methyltransferase) SB - IM MH - Administration, Oral MH - Aged MH - Aged, 80 and over MH - *Alleles MH - Betaine-Homocysteine S-Methyltransferase/*genetics MH - Comorbidity MH - Environment MH - Female MH - Folic Acid/administration & dosage/*therapeutic use MH - Humans MH - Hyperhomocysteinemia/*drug therapy/*genetics MH - Male MH - Middle Aged MH - Odds Ratio MH - *Polymorphism, Single Nucleotide MH - Treatment Outcome EDAT- 2019/05/22 06:00 MHDA- 2020/07/01 06:00 CRDT- 2019/05/22 06:00 PHST- 2018/12/02 00:00 [received] PHST- 2019/04/14 00:00 [revised] PHST- 2019/04/26 00:00 [accepted] PHST- 2019/05/22 06:00 [pubmed] PHST- 2020/07/01 06:00 [medline] PHST- 2019/05/22 06:00 [entrez] AID - 10.1111/ahg.12326 [doi] PST - ppublish SO - Ann Hum Genet. 2019 Nov;83(6):434-444. doi: 10.1111/ahg.12326. Epub 2019 May 20.