Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The findings from our meta-analysis support the associations of MTHFR C677T polymorphism with VTE risk in the Chinese population. 25149317

2015

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE MTHFR C677T had no association with VTE risk in pregnancy (ORG 1.24; 95% CI 0.88-1.73). 26115054

2015

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Elevated plasma homocysteine (tHcy) and the MTHFR c.677C>T variant have been postulated to increase the risk of venous thromboembolism (VTE), although mechanisms and implications to pediatrics remain incompletely understood. 23866722

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE No significant association with VTE was found for homozygous C677T MTHFR (OR: 1.38; 95 % confidence intervals [CI]: 0.98-1.93), whereas the risk was increased in carriers of either heterozygous FVL or PT20210 (OR = 4.22; 95 % CI: 3.35-5.32; and OR = 2.79;95 % CI: 2.25-3.46, respectively), in double heterozygotes (OR = 3.42; 95 %CI 1.64-7.13), and in homozygous FVL or PT20210A (OR = 11.45; 95 %CI: 6.79-19.29; and OR: 6.74 (CI 95 % 2.19-20.72), respectively). 23900608

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Methylenetetrahydrofolate reductase (MTHFR) C677T single nucleotide polymorphism is a major inherited risk factor of venous thromboembolism. 23749065

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In conclusion, the TT genotype of MTHFR 677C>T increases the risk of VTE in Koreans. 22327825

2013

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Factor V leiden G1691A/R506Q (FVL), prothrombin G20210A (FII) and methylenetetrahydrofolate reductase (MTHFR) C677T are related genetic risk factors for venous thromboembolism. 22528331

2012

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Role of soluble P-selectin and methylenetetrahydrofolate reductase gene polymorphisms (677C>T) in Egyptian patients with venous thromboembolism. 22688557

2012

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Thus, frequencies of FV G1691A, PT G20210A, and MTHFR C677T mutations are higher in patients with VTE. 21078611

2012

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The C677T MTHFR polymorphism is suggested to be associated with the risk for VTE. 22992862

2012

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The C677T polymorphism of the 5, 10-methylenetetrahydrofolate reductase (MTHFR) gene has been postulated to be a genetic risk factor for venous thromboembolism and osteonecrosis in Caucasians, but this relationship has not been established in other populations. 20229089

2010

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Factor V Leiden (Factor V G1691A), prothrombin gene mutation G20210A, and homozygous C677T mutation in the methylenetetrahydrofolate reductase (MTHFR) gene are known to predispose venous thromboembolism (VTE). 19520679

2010

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Patients were interviewed about VTE risk factors and tested for factor V Leiden (FVL), prothrombin G20210A (PT), methylenetetrahydrofolate reductase C677T homozygosity (MTHFR), lupus anticoagulant, homocysteine (Hcy) and plasma factor VIII (FVIII) levels. 19853891

2010

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In the present study, we have focused on the prevalence of methylenetetrahydrofolate reductase (MTHFR) C677T, dihydrofolate reductase (DHFR) 19-bp deletion within intron 1, factor V Leiden (FVL), and prothrombin (PT) G20210A polymorphisms in cancer patients with and without VTE. 18682947

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE MTHFR/ C677T in Chinese/Thai populations (OR 1.57; 95% CI 1.23-2.00, p = 0.0003), and ACE I/D in African American populations (OR 1.5; 95% CI 1.03-2.18, p = 0.03) were found to be significantly associated with VTE. 19652888

2009

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE In contrast, factor V Leiden, the G20210A prothrombin gene mutation, and the C677T MTHFR gene mutation are not genetic risk factors among Thai patients with VTE. 18192106

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The C677T mutation of the methylenetetrahydrofolate reductase gene, which may lead to hyperhomocysteinemia, is also considered a risk factor for VTE in some studies. 17401546

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Insofar as the inherited prothrombotic single nucleotide polymorphisms (SNPs) factor V G1691A (FV-Leiden), prothrombin (PRT) G20210A, and methylenetetrahydrofolate reductase (MTHFR), C677T are inherited risk factors of venous thromboembolism (VTE), the aim of this study was to determine the prevalence of single and combined SNPs in 198 patients with documented deep venous thrombosis (DVT), and 697 control subjects, and to estimate the associated risks. 16082606

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Factor V G1691A (Leiden), prothrombin G20210A, and methylenetetrahydrofolate reductase (MTHFR) C677T mutations are considered risk factors for venous thromboembolism. 15886665

2005

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Single point mutations in the genes coding for factor V [G1691A; Leiden], prothrombin [PRT; G20210A], and methylenetetrahydrofolate reductase [MTHFR, C677T] were shown to be major inherited predisposing factors for venous thromboembolism. 15353918

2004

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We performed a prospective study to evaluate the prevalence and clinical significance of four gene variations (factor V Leiden [FVL], factor II G20210A, factor XIII Val34Leu and MTHFR C677T) in cancer patients, with and without VTE. 12757770

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Factor V Leiden, prothrombin 20210G --> A, methylenetetrahydrofolate reductase 677C --> T and plasminogen activator inhibitor 4G/5G polymorphism in women with pregnancy-related venous thromboembolism. 14597244

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE No associations between VTE and MTHFR polymorphisms (C677T, A1298C) were found. 12570104

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Fasting total homocysteine (tHcy) and the methylenetetrahydrofolate reductase (MTHFR) C677T mutation were evaluated in 91 patients with venous thromboembolism and without acquired thrombophilia, and in 91 age-matched and sex-matched controls. 11943942

2002

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The presence of the C677T mutation in the MTHFR gene was investigated in a population of 176 consecutive patients with a history of venous thromboembolism and in a control group of 300 healthy subjects, using DNA analysis. 12384649

2002