Variant Gene Disease Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE Subjects with diabetes had significantly higher homocysteine (Hcy) levels than the control subjects; however, there was no statistical difference in plasma Hcy values between carriers of mutant genotypes (CT/TT for C677T and AC/CC for A1298C) and wild types (CC and AA) in patients with diabetes. 28341195

2017

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE Overall, a significantly elevated risk of DN was associated with all variants of MTHFR C677T when compared with the healthy group (T vs C, odds ratio (OR) = 2.22, 95% confidence interval (CI) = 1.88-2.61; TT vs CC, OR = 4.22, 95% CI = 3.02-5.90; TT + CT vs CC, OR = 2.62, 95% CI = 2.07-3.31; TT vs CC + CT, OR = 2.81, 95% CI = 2.08-3.81) or DM (T vs C, OR = 1.78, 95% CI = 1.59-2.00; TT vs CC, OR = 2.95, 95% CI = 2.33-3.73; TT + CT vs CC, OR = 1.93, 95% CI = 1.63-2.29; TT vs CC + CT, OR = 2.31, 95% CI = 1.87-2.84). 26072975

2016

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE The aim of this study is to quantify global DNA methylation and investigate the relationship with diabetes status and polymorphisms in MTHFR C677T and NOS3 G894T genes in mixed ancestry subjects from South Africa. 27990443

2016

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE Relationship of MTHFR gene 677C → T polymorphism, homocysteine, and estimated glomerular filtration rate levels with the risk of new-onset diabetes. 25700330

2015

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE The Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is associated with various diseases (vascular, cancers, neurology, diabetes, psoriasis, etc) with the epidemiology of the polymorphism of the C677T that varies dependent on the geography and ethnicity. 25449138

2015

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE The aim of the present study was to evaluate the effect of simvastatin treatment on circulating Hcy levels in obese women without hypertension, diabetes or dyslipidaemia; and to determine whether the 677C>T polymorphism located in methylenetetrahydrofolate reductase (NAD(P)H) (MTHFR) gene modulates the effects of this treatment on Hcy and nitrite (as a biomarker of nitric oxide (NO) bioavailability). 25115547

2014

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE The current meta-analysis suggested that MTHFR C677T polymorphism might influence DN risk, but not for DM in the Chinese population. 23822721

2013

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE A comprehensive literature search was conducted to collect data from all case-control observational studies that investigated association of C677T polymorphism in MTHFR gene with DM or DN in a Chinese population. 22209973

2012

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE Individuals with a family history of diabetes or with risk factors such as obesity, hypertension, and impaired glucose tolerance should be screened for MTHFR C677T mutation and may be prescribed folic acid, vitamin B6, and vitamin B12 to assess if this helps in delaying the onset of diabetes. 21186995

2011

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE To examine the association between MTHFR gene C677T polymorphism in diabetes and obesity with serum homocysteine levels. 19437140

2010

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE Our data suggest that ACE ID polymorphism may act synergistically with MTHFR C677T polymorphism to assess diabetes risk. 19857476

2010

dbSNP: rs1217691063
rs1217691063
CUI: C0011849
Disease: Diabetes Mellitus
Diabetes Mellitus
0.100 GeneticVariation BEFREE The association between plasma Hcy and serum IL-6 levels supports the hypothesis that the activation of innate immunity is involved in the pathogenesis of arteriosclerosis in patients with diabetes mellitus who are homozygous for the TT genotype of C677T MTHFR. 15931619

2005