Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE C677T mutation of methylenetetrahydrofolate reductase gene and serum homocysteine levels in Turkish patients with coronary artery disease. 15648053

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE A common mutation (nucleotide 677 C-->T) has been described recently in the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene, which results in a valine for alanine substitution, a thermolabile enzyme, and a tendency to elevate plasma homocysteine levels and which has been proposed to contribute importantly to coronary artery disease. 8994411

1997

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE A1298C methylenetetrahydrofolate reductase mutation and coronary artery disease: relationships with C677T polymorphism and homocysteine/folate metabolism. 12049191

2002

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE An association between combined MTHFR A1298C and C677T polymorphisms and CHD was recorded in the children and their mothers. 23933414

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Both <i>MTHFR</i> C677T (rs 1801133) and A1298C (rs 1801131) gene polymorphisms were risks for CHD in children with transgenerational effects from their parents. 30081597

2018

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Both infant and maternal MTHFR C677T polymorphisms may contribute to the risk of CHDs. 23536781

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Combined odds ratios (ORs) for the association between the MTHFR 677C-->T polymorphism and CHD were assessed by logistic regression. 12387655

2002

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Compound mutants for (MTHFD-G1958A, MTHFR-C677T and MTR-A2756G) and (MTHFD-G1958A, RFC1-G80A and MTR-A2756G) may increase the risk of CHD. 23701284

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Congenital heart defects (CHD) are the third leading cause of death in children <1 year of age in Mexico where there is a high prevalence of the 677C → T polymorphism of the MTHFR gene. 22660520

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Dynamic regulation of MTHFR mRNA expression and C677T genotype modulate mortality in coronary artery disease patients after revascularization. 17604826

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Factor V G1691A, prothrombin G20210A, and methylenetetrahydrofolate reductase [MTHFR] C677T gene polymorphism in angiographically documented coronary artery disease. 15353918

2004

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Further larger studies and well-defined phenotypic subcategory analyses are needed to decide whether the MTHFR 677C-->T polymorphism of the affected child and/or their mother is truly a risk factor for the development of CHDs. 17965089

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Gene--nutrition interactions in coronary artery disease: correlation between the MTHFR C677T polymorphism and folate and homocysteine status in a Korean population. 15935452

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE High plasma homocysteine is associated with the risk of coronary artery disease independent of methylenetetrahydrofolate reductase 677C-->T genotypes. 18586656

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE However, in persons with the CC variant for the MTHFR 677 C>T genotype, a significantly protective effect against CHD [0.71 (95% CI 0.58-0.87)] was shown, although in the CT [1.25 (95% CI 0.97-1.61)] and TT groups [0.80 (95% CI 0.50-1.28)] there were no such effects (interaction hazard ratio P=0.004). 18622257

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In a Dutch population-based case-control study of 143 children with CHD and 186 healthy children, we investigated S-adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), total homocysteine (tHcy), the vitamins folate and B12 and the functional single nucleotide polymorphisms in the folate gene MTHFR 677C>T and 1298A>C. 20868449

2011

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In the subgroup stratified by region, sample size, genotyping method and source of controls, the increased risks were widely observed in both the C677T and A1298C polymorphisms with CHD risk. 29554656

2018

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In this generally well-nourished population, men with the +/+ genotype for the C677T mutation in the methylenetetrahydrofolate reductase gene have no increase in risk of coronary heart disease, even when intake of folate or other B vitamins is low. 9708460

1998

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Meta-analysis of the results showed significant associations between the maternal C677T polymorphism and CHD risk (CC vs TT: OR = 0.65, 95%CI = 0.44-0.96). 24338416

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase (MTHFR) 677C>T and methionine synthase reductase (MTRR) 66A>G polymorphisms: association with serum homocysteine and angiographic coronary artery disease in the era of flour products fortified with folic acid. 12801615

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase 677 C-->T mutation and coronary heart disease risk in UK Indian Asians. 11073851

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase C677T gene polymorphism and coronary artery disease in a Chinese Han population: a meta-analysis. 22146089

2012

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase C677T polymorphism is associated with increased risk of coronary artery disease in young South African Indians. 26095803

2015

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase gene C677T polymorphism, homocysteine, vitamin B12, and DNA damage in coronary artery disease. 12522558

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE MTHFR 677 C-->T mutation: a predictor of early-onset coronary artery disease risk. 11562338

2001