Aims: We investigated the hypothesis that there are interactions between SNPs in folate metabolism pathway genes and environmental risk factors to the etiology of neural tube defects (NTDs). Method: In 602 Chinese families, 609 aborted fetus tissues or blood samples were collected from NTD individuals, and 1106 parental blood samples were detected as controls. We analyzed 28 SNPs in 12 folate pathway genes. Folate supplementation, gestational diabetes mellitus (GDM) and medicine administration before and during pregnancy were investigated. Case-parental control study and transmission/disequilibrium tests were performed according to environmental cofactor stratification. Results: Association between 5,10-methylenetetrahydrofolate reductase (MTHFR) 677C>T and NTDs was significant in all stratifications (all P<.05), and synergistic effects of no folate supplementation and GDM were shown on NTD occurrence. 5-Methyltetrahydrofolate-homocysteine methyltransferase (MTHM) 501A>G in case of GDM, and betaine-homocysteine methyltransferase (BHMT) 716G>A in case of no folate supplementation significantly associated with NTDs (both P<.05), whereas the two genotypes alone did not significantly associate with NTDs (both P>.05). Conclusions: MTHFR 677C>T genotype, especially in case of no folate supplementation and GDM, promotes NTD occurrence. MTHM 501A>G only in case of GDM, and BHMT 716G>A only in case of no folate supplementation contribute to the etiology of NTDs. (C) 2013 Elsevier B.V. All rights reserved.
基金：
Twelfth Five-Year National Key Technology RD Program [2012BAI09B04]; Professional Fund of Ministry of Health (China) [2010002006]; Key Construction Project of Clinical Specialty of Ministry of Health (China)
第一作者单位：[1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Pediat, Wuhan 430074, Peoples R China[2]Xiangyang Cent Hosp, Dept Pediat, Xiangyang, Peoples R China
通讯作者：
通讯机构：[1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Pediat, Wuhan 430074, Peoples R China[*1]1095 Jiefang Ave, Wuhan 430030, Peoples R China
推荐引用方式(GB/T 7714)：
Liu Jian,Qi Jing,Yu Xiao,et al.Investigations of single nucleotide polymorphisms in folate pathway genes in Chinese families with neural tube defects[J].JOURNAL OF THE NEUROLOGICAL SCIENCES.2014,337(1-2):61-66.doi:10.1016/j.jns.2013.11.017.
APA：
Liu, Jian,Qi, Jing,Yu, Xiao,Zhu, Jie,Zhang, Lixia...&Luo, Xiaoping.(2014).Investigations of single nucleotide polymorphisms in folate pathway genes in Chinese families with neural tube defects.JOURNAL OF THE NEUROLOGICAL SCIENCES,337,(1-2)
MLA：
Liu, Jian,et al."Investigations of single nucleotide polymorphisms in folate pathway genes in Chinese families with neural tube defects".JOURNAL OF THE NEUROLOGICAL SCIENCES 337..1-2(2014):61-66
