Polymorphisms in MTHFD1 Gene and Susceptibility to Neural Tube Defects: A Case-Control Study in a Chinese Han Population with Relatively Low Folate Levels

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
Jian WuJian Yang

Abstract

The polymorphism of methylenetetrahydrofolate dehydrogenase (MTHFD1) has been reported as a risk factor for neural tube defects (NTDs). In the present study, we aimed to investigate whether the single-nucleotide polymorphisms (SNPs) of MTHFD1 gene are associated with NTDs in a Chinese population and to determine their mechanism of action. MTHFD1 gene was scanned in a total of 270 NTDs cases and 192 healthy controls by using next-generation sequencing (NGS) method. After quality control procedures, 208 selected SNP sites in MTHFD1 gene were enrolled for follow-up statistical association analyses. Functional analyses were also performed for significant SNPs through bioinformatics analysis. Folic acid levels of brain tissue in available NTDs cases and healthy controls (113 and 123, respectively) were measured. Statistical and bioinformatics analyses were performed to investigate the relationship between SNPs in MTHFD1 and susceptibility to NTDs. Statistical analysis showed that 2 independent SNPs, rs1956545 and rs56811449, confer the risk of NTDs (P value=0.0195, OR (odds ratio)=1.41, 95% CI (confidence interval)=1.06-1.88; P value=0.0107, OR=0.56, 95% CI=0.36-0.87). The haplotype GGGG, which consists of 4 SNPs (rs2236225, rs22362...Continue Reading

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Citations

Jun 20, 2017·Annual Review of Nutrition·Anne M MolloyLawrence C Brody

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Methods Mentioned

BETA
Assay

Software Mentioned

Ensembl
ANNOVAR
PLINK
SureDesign
Haploview
Samtools
BWA
Varscan
ENCODE

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