Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
0.040 GeneticVariation BEFREE The interaction of COMT rs737865 and MTHFR C677T was associated with an increased risk of NTDs, especially anencephaly, in a Chinese population with a high prevalence of NTDs. 24990354

2015

dbSNP: rs1217691063
rs1217691063
0.040 GeneticVariation BEFREE Effect on risk of anencephaly of gene-nutrient interactions between methylenetetrahydrofolate reductase C677T polymorphism and maternal folate, vitamin B12 and homocysteine profile. 22230335

2012

dbSNP: rs1217691063
rs1217691063
0.040 GeneticVariation BEFREE We conducted a case-control study specifically for anencephaly, based on the Mexican Epidemiological Surveillance System of Neural Tube Defects to evaluate its association with maternal MTHFR 677C > T and 1298A > C polymorphisms, in three states with high frequencies of NTDs: Puebla, Estado de México and Guerrero. 17439956

2007

dbSNP: rs1217691063
rs1217691063
0.040 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: rs737865
rs737865
0.020 GeneticVariation BEFREE There was a COMT rs737865</span> CC × MTHFR rs1801133 TT interaction for total NTDs (OR = 3.02, 95 % CI = 1.00-9.14) and for anencephaly (OR = 3.39, 95 % CI = 0.94-12.18). 24990354

2015

dbSNP: rs737865
rs737865
0.020 GeneticVariation BEFREE After controlling for potential confounders, homozygotes of rs737865 showed an elevated risk for total NTDs (odds ratio [OR] = 2.04, 95% confidence interval [CI], 1.24-3.35) and for the anencephaly subtype (OR = 1.99, 95% CI, 1.17-3.39). 24382678

2014

dbSNP: rs1052536
rs1052536
0.010 GeneticVariation BEFREE The stratified analysis showed that TT genotype of rs1052536 increased the risk of anencephaly (P=0.016, OR=2.69, 95%CI [1.18-6.10]) and the T allele significantly increased the risk of cranial NTDs (P=0.033, OR=1.56, 95%CI [1.04-2.35]). 30022792

2018

dbSNP: rs773607884
rs773607884
0.010 GeneticVariation BEFREE In this study, we employed whole-exome sequencing and identified a homozygous missense mutation c.1522C > A (p.Pro508Thr) in the TRIM36 gene as the cause of autosomal recessive APH in an Indian family. 28087737

2017

dbSNP: rs2236225
rs2236225
0.010 GeneticVariation BEFREE In the case-control study, those with the MTHFD1 G1958A variant were associated with around twofold risk of anencephaly (p=0.01) and spina bifida (p<0.01). 26394717

2016

dbSNP: rs1801133
rs1801133
0.010 GeneticVariation BEFREE There was a COMT rs737865 CC × MTHFR rs1801133 TT interaction for total NTDs (OR = 3.02, 95 % CI = 1.00-9.14) and for anencephaly (OR = 3.39, 95 % CI = 0.94-12.18). 24990354

2015

dbSNP: rs326119
rs326119
0.010 GeneticVariation BEFREE Significant increased risk of anencephaly was seen in MTRR variant rs326119 heterozygote (het) and homozygote (hom) individuals [odds ratios (OR)het = 1.81; ORhom = 2.05)]. 26045171

2015

dbSNP: rs749437638
rs749437638
0.010 GeneticVariation BEFREE The interaction of COMT rs737865 and MTHFR C677T was associated with an increased risk of NTDs, especially anencephaly, in a Chinese population with a high prevalence of NTDs. 24990354

2015

dbSNP: rs12132032
rs12132032
0.010 GeneticVariation BEFREE The gene polymorphism loci rs12132032 in PRKACB maybe a potential risk factor for anencephaly in Chinese population from Shanxi, while gender susceptibility may influence the correlation. 24294386

2013

dbSNP: rs202676
rs202676
0.010 GeneticVariation BEFREE Although no significant differences in rs202676 genotype or allele frequencies were found between the NTD and control groups, the combined AG+GG genotype group was significantly associated with anencephaly (p = 0.03, OR = 2.11, 95% CI, 1.11-4.01), but not with spina bifida or encephalocele. 22124883

2012