Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1135401743
rs1135401743
T 0.700 CausalMutation CLINVAR NAD Deficiency, Congenital Malformations, and Niacin Supplementation. 28792876

2017

dbSNP: rs1555471098
rs1555471098
C 0.700 GeneticVariation CLINVAR

dbSNP: rs431905509
rs431905509
A 0.700 GeneticVariation CLINVAR

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In conclusion, it is not necessary for Japanese women to undergo genetic screening C677T mutation of the MTHFR gene as a predictive marker for spina bifida prior to pregnancy, because the TT genotype is not a risk factor for having an affected infant. 24588777

2014

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The nitric oxide synthase 3 (NOS3) G594T polymorphism has been implicated in risk for spina bifida, and interactions between that single nucleotide polymorphism (SNP) and the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism have also been observed. 24323870

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Consistent with previous reports, spina bifida was associated with MTHFR 677C>T, T (Brachyury) rs3127334, LEPR K109R, and PDGFRA promoter haplotype combinations. 21204206

2011

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The results of these analyses indicate that, if maternal CCL-2 genotype is related to the risk of spina bifida, this relationship is likely to be more complex than initially hypothesized, perhaps depending upon folate intake, MTHFR 677C>T genotype, the distribution of folate derivatives, and immune/inflammatory activity. 18937353

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase (MTHFR): incidence of mutations C677T and A1298C in Brazilian population and its correlation with plasma homocysteine levels in spina bifida. 12707953

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Some data suggest that the risk for spina bifida</span> associated with C677T homozygosity may depend on nutritional status (e.g., blood folate levels, intake of vitamins) or on the genotype of other folate-related genes (e.g., cystathionine-beta-synthase and methionine synthase reductase). 10791559

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Our study provides evidence that the maternal C677T MTHFR homozygous mutant genotype is a risk factor for upper level spina bifida defects in Hispanics. 11074490

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The polymorphic mutation C677T in the gene of MTHFR is considered a risk mutation for spina bifida and vascular disease. 10494095

1999

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Distribution of alleles of the methylenetetrahydrofolate reductase (MTHFR) C677T gene polymorphism in familial spina bifida. 10594879

1999

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE This population-based California study found a modestly increased risk of spina bifida among infants who were homozygous for the C677T genotype, but only minimal evidence of an interaction between the C677T genotype and maternal folic acid intake in the occurrence of spina bifida. 9663401

1998

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE This study, as well as the meta-analysis we updated, shows that homozygosity for the MTHFR C677T mutation is a moderate risk factor in Europe, and even in Italy where there is a relatively low prevalence of spina bifida. 9863598

1998

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Evaluation of the MTHFR C677T allele and the MTHFR gene locus in a German spina bifida population. 9667406

1998

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Elevated plasma total homocysteine and C677T mutation of the methylenetetrahydrofolate reductase gene in patients with spina bifida. 9349452

1997

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The common 677C-->T mutation (+) in the 5,10-methylenetetrahydrofolate reductase gene, resulting in decreased activity of the enzyme, has been associated with spina bifida neural tube defects (NTD). 9068801

1997

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE These preliminary data suggest that the 677C-->T polymorphism of the MTHFR gene is a risk factor for spina bifida and anencephaly that may provide a partial biologic explanation for why folic acid prevents these types of NTD. 8826441

1996

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The 677C-->T mutation should be regarded as a genetic risk factor for spina bifida. 7564788

1995

dbSNP: rs1801394
rs1801394
0.030 GeneticVariation BEFREE With respect to spina bifida, we observed ORs with 95% confidence intervals that did not include 1.0 for the following SNPs (heterozygous or homozygous) relative to the reference genotype: BHMT (rs3733890) OR = 1.8 (1.1-3.1), CBS (rs2851391) OR = 2.0 (1.2-3.1); CBS (rs234713) OR = 2.9 (1.3-6.7); MTHFD1 (rs2236224) OR = 1.7 (1.1-2.7); MTHFD1 (hcv11462908) OR = 0.2 (0-0.9); MTHFD2 (rs702465) OR = 0.6 (0.4-0.9); MTHFD2 (rs7571842) OR = 0.6 (0.4-0.9); MTHFR (rs1801133) OR = 2.0 (1.2-3.1); MTRR (rs162036) OR = 3.0 (1.5-5.9); MTRR (rs10380) OR = 3.4 (1.6-7.1); MTRR (rs1801394) OR = 0.7 (0.5-0.9); MTRR (rs9332) OR = 2.7 (1.3-5.3); TYMS (rs2847149) OR = 2.2 (1.4-3.5); TYMS (rs1001761) OR = 2.4 (1.5-3.8); and TYMS (rs502396) OR = 2.1 (1.3-3.3). 19493349

2009

dbSNP: rs1801394
rs1801394
0.030 GeneticVariation BEFREE In our case-control study, the MTRR 66A>G polymorphism had no influence on spina bifida risk in children [odds ratio (OR) 0.6, 95% confidence interval (CI) 0.4-1.1]. 17024475

2006

dbSNP: rs1801394
rs1801394
0.030 GeneticVariation BEFREE We analyzed the role of the C677T polymorphism of the 5,10-methylenetetrahydrofolate and the A66G polymorphism of the methionine synthase reductase genes as risk factors for occurrence of spina bifida. 12590188

2003

dbSNP: rs4816
rs4816
0.020 GeneticVariation BEFREE Previous study has shown that PCMT1 polymorphisms rs4552 and rs4816 of infant are associated with spina bifida in the Californian population. 22647835

2012

dbSNP: rs3733890
rs3733890
0.020 GeneticVariation BEFREE With respect to spina bifida, we observed ORs with 95% confidence intervals that did not include 1.0 for the following SNPs (heterozygous or homozygous) relative to the reference genotype: BHMT (rs3733890) OR = 1.8 (1.1-3.1), CBS (rs2851391) OR = 2.0 (1.2-3.1); CBS (rs234713) OR = 2.9 (1.3-6.7); MTHFD1 (rs2236224) OR = 1.7 (1.1-2.7); MTHFD1 (hcv11462908) OR = 0.2 (0-0.9); MTHFD2 (rs702465) OR = 0.6 (0.4-0.9); MTHFD2 (rs7571842) OR = 0.6 (0.4-0.9); MTHFR (rs1801133) OR = 2.0 (1.2-3.1); MTRR (rs162036) OR = 3.0 (1.5-5.9); MTRR (rs10380) OR = 3.4 (1.6-7.1); MTRR (rs1801394) OR = 0.7 (0.5-0.9); MTRR (rs9332) OR = 2.7 (1.3-5.3); TYMS (rs2847149) OR = 2.2 (1.4-3.5); TYMS (rs1001761) OR = 2.4 (1.5-3.8); and TYMS (rs502396) OR = 2.1 (1.3-3.3). 19493349

2009

dbSNP: rs1799983
rs1799983
0.020 GeneticVariation BEFREE The 894G>T variant in the endothelial nitric oxide synthase gene and spina bifida risk. 17479212

2007