Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Several studies on genetic variants of methylenetetrahydrofolate reductase (MTHFR, which plays a crucial role in regulation of plasma homocysteine concentration) reported an association between C677T gene polymorphism and stroke in some Asian populations. 19193985

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The association of factor V-Leiden and methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C mutations with stroke was investigated in 118 patients with stroke and 120 control subjects. 19717029

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We conclude that the MTHFR 677C>T polymorphism may be considered as a genetic risk factor of childhood stroke, especially in boys. 19805823

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The aim of this study is to determine the role of hereditary thrombophilic factors including factor V Leiden A1691G (FVL), prothrombin G20210A, and methylenetetrahydrofolate reductase (MTHFR) C677T gene mutations in patients with stroke because of cerebral infarct. 19263510

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE A significant combined effect on stroke due to the C677T polymorphism of methylenetetrahydrofolate reductase (MTHFR), the T2354A polymorphism of 5-lipoxygenase activating protein (ALOX5AP), and Lp(a) level, was detected using the MDR method. 17521309

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The sensitivity analysis (exclusion of studies with controls not in Hardy-Weinberg equilibrium) revealed a significant association of stroke with the MTHFR C677T and ApoE epsilon 4 alleles but showed no association with ACE gene insertion/deletion polymorphism. 17171228

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Therefore, we examined whether the C677T and A1298C polymorphisms of MTHFR gene are genetic risk factors for both ischemic and hemorrhagic stroke in a Turkish Caucasian population. 17113927

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The MTHFR C677T genotype has been associated with increased risk of migraine in selected clinical samples and with elevated homocysteine, a risk factor for stroke. 16365871

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Plasma total homocysteine (tHcy) concentration and the distribution of the C677T genotypes of the methylenetetrahydrofolate reductase gene (MTHFR) were compared in 174 consecutive patients with stroke aged <45 years and 155 age and sex-matched controls. 16624841

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Homozygous MTHFR C677T gene mutation and recurrent stroke in an infant. 16814086

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We investigated whether the MTHFR C677T and A1298C polymorphisms contribute to hyperhomocysteinemia and increase the risk factor for stroke. 16629766

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In view of the prevailing controversy about the role of Methylenetetrahydrofolate reductase (MTHFR) C677T mutation in stroke and paucity of studies from India, this study has been undertaken to evaluate MTHFR C677T gene polymorphism in consecutive ischemic stroke patients and correlate these with folic acid, homocysteine (Hcy) and conventional risk factors. 16936384

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We present a case of a child with bidirectional Glenn anastomosis for double inlet left ventricle that suffered a stroke despite aspirin prophylaxis; the patient was combined homozygous for prothrombin G20210A mutation and for methylenetetrahydrofolate reductase C677T mutation as well. 16209893

2006

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The folate-sensitive polymorphism methylenetetrahydrofolate reductase (MTHFR) c. 677 C > T (A222V) referred a non-significant risk of ischemic stroke (odds ratio: 1.20) in all patients, and homozygosity for MTHFR c. 677 C > T was associated with an earlier onset of stroke selectively in patients younger than 60 years (38 +/- 3 years vs. 45 +/- 1 years; P = 0.043). 16053469

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE This indicates that C677T MTHFR mutation is strongly associated with arterial stroke especially in young adults. 15613145

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Individuals homozygous for the T allele of the MTHFR C677T polymorphism have higher plasma homocysteine concentrations (the phenotype) than those with the CC genotype, which, if pathogenetic, should put them at increased risk of stroke. 15652605

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE A recent study of children demonstrated that the homozygous form of C677T polymorphism occurred two-times as often in those with stroke versus healthy controls. 16282888

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Red cell N5-methyltetrahydrofolate concentrations and C677T methylenetetrahydrofolate reductase genotype in patients with stroke. 14693836

2004

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Genotyping of methylenetetrahydrofolate reductase (MTHFR) C677T gene mutation and brain MRI examination were performed in 1721 subjects free of any history of stroke. 12690212

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE It is still controversial whether elevated plasma homocysteine and the C677T polymorphism of methylenetetrahydrofolate reductase (MTHFR) gene are risk factors for stroke. 12907815

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Fasting total plasma homocysteine (tHcy) concentration, C677T MTHFR genotype, and 844ins68bp CBS genotype were determined in 25 patients with sCAD, 31 patients <45 years of age with non-CAD ischemic stroke, and 36 control subjects. 11872884

2002

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We investigated associations between the C677T MTHFR polymorphism, folate levels, total plasma homocysteine, and hematological parameters in 94 patients with cerebrovascular disease (transient ischemic attack/minor stroke) and in 82 healthy subjects. 10695265

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Moreover, the 677 C-->T genotype is a strong factor for predisposition to hyperhomocysteinemia and recurrent risk of stroke</span> that might also be prevented with folate supplementation. 10830195

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The roles of ACE D polymorphism and the MTHFR C677T mutation in stroke, should also be taken into consideration in this subgroup of stroke patients. 10949530

2000

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE According to our results, the C677T mutation does not constitute a major risk factor for transient ischemic attack or minor stroke, even under consideration of other possibly confounding factors that are known to affect plasma homocysteine levels. 10360632

1999