Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE CONCLUSION: Although MTHFR C677T and A1298C are significantly associated with some types of congenital defects and adverse pregnancy outcomes, the impact of these polymorphisms is moderate. 30474229

2019

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We evaluated five single-nucleotide polymorphisms (SNPs) in genes related to folic acid metabolism: methylenetetrahydrofolate reductase (MTHFR C677T and A1298C), solute carrier family 19, member 1 (SLC19A1 G80A), methionine synthase (MTR A2576G), and methionine synthase reductase (MTRR A66G), as risk factors for CTDs including various types of malformation, in a total of 193 mothers with CTD-affected offspring and 234 healthy controls in a Chinese population. 30165839

2018

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The aim of this study was to evaluate the possible relationship between Factor V (FV) 1691G>A, Factor II (FII) 20210G>A mutations and methylenetetrahydrofolate reductase (MTHFR) 677C>T; 1298A>C and Factor XIII (FXIII) 103G>T gene polymorphisms and the occurrence of IVH in 100 infants born from 24 + 0 to 32 + 0 weeks of gestation, born from singleton pregnancy, before 32 + 0 weeks of gestation, exposed to antenatal steroid therapy, and without congenital abnormalities. 28578513

2017

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The MTHFR C677T polymorphism was significantly associated with 42 clinical disorders (p < 0.05), mostly relating to the diseases of circulatory system, birth defects and cancers. 27888505

2017

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE C677T polymorphism of MTHFR gene was reported as risk factor for congenital defects, metabolic and neuropsychiatric disorders. 27025471

2016

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms are associated with complex congenital malformations. 18452180

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The MTHFR 677C > T polymorphism in conjunction with reduced folate- and/or cobalamin status may increase the risk of complex birth defects. 18435414

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The rate of MM was increased in offspring of mothers who were heterozygous or homozygous for 677C > T genotype amongst AED-exposed cases, but more so in those exposed to VPA. 17951123

2008

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE MTHFR C677T polymorphism and hyperhomocysteinemia have been associated with congenital malformations of the heart and neural tube defects. 17510921

2007

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE We studied whether two polymorphisms in the MTHFR gene (677C-->T and 1298A-->C) are associated with pregnancy complications, adverse outcomes, and birth defects. 15210385

2004

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE The MTHFR polymTHFR polymorphisms, especially the 677C-->T mutation, may contribute to vascular and birth defect risks, while reducing the risk of certain malignancies, such as colon cancer. 14633777

2003

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Association of the C677T methylenetetrahydrofolate reductase mutation and elevated homocysteine levels with congenital cardiac malformations. 11303187

2001

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE Moreover, some authors demonstrated association of the C-->T mutation (C677T), converting an alanine to a valine residue in 5,10-methylenetetrahydrofolate reductase (MTHFR) gene, with other congenital anomalies such as neural tube defects (NTDs). 11170082

2001

dbSNP: rs1217691063
rs1217691063
0.100 GeneticVariation BEFREE A common novel mutation (C677T) in the methylenetetrahydrofolate reductase (MTHFR) gene is considered an associated risk factor for NTD and other malformations. 10607475

1999

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE CONCLUSION: Although MTHFR C677T and A1298C are significantly associated with some types of congenital defects and adverse pregnancy outcomes, the impact of these polymorphisms is moderate. 30474229

2019

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE We evaluated five single-nucleotide polymorphisms (SNPs) in genes related to folic acid metabolism: methylenetetrahydrofolate reductase (MTHFR C677T and A1298C), solute carrier family 19, member 1 (SLC19A1 G80A), methionine synthase (MTR A2576G), and methionine synthase reductase (MTRR A66G), as risk factors for CTDs including various types of malformation, in a total of 193 mothers with CTD-affected offspring and 234 healthy controls in a Chinese population. 30165839

2018

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE The aim of this study was to evaluate the possible relationship between Factor V (FV) 1691G>A, Factor II (FII) 20210G>A mutations and methylenetetrahydrofolate reductase (MTHFR) 677C>T; 1298A>C and Factor XIII (FXIII) 103G>T gene polymorphisms and the occurrence of IVH in 100 infants born from 24 + 0 to 32 + 0 weeks of gestation, born from singleton pregnancy, before 32 + 0 weeks of gestation, exposed to antenatal steroid therapy, and without congenital abnormalities. 28578513

2017

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE The minor allelic frequencies of the MTHFD1 1958G>A and MTHFR 1298A>C in our populations were similar to those reported from Southeast Asian population, suggesting a possible explanation for the prevalence of this malformation in these regions. 28398708

2017

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE In the group of CA of the cardiovascular system, we observed an association of MTHFR A1298C with decreased risk and an association of MTR A2756G with increased risk of CA. 22855024

2012

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE The methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms are associated with complex congenital malformations. 18452180

2008

dbSNP: rs397507444
rs397507444
0.070 GeneticVariation BEFREE We studied whether two polymorphisms in the MTHFR gene (677C-->T and 1298A-->C) are associated with pregnancy complications, adverse outcomes, and birth defects. 15210385

2004

dbSNP: rs2236225
rs2236225
0.030 GeneticVariation BEFREE A polymorphism in methylenetetrahydrofolate dehydrogenase 1 (MTHFD1), R653Q (MTHFD1 c.1958 G > A), has also been associated with increased birth defect risk, likely through reduced purine synthesis. 29659962

2018

dbSNP: rs2236225
rs2236225
0.030 GeneticVariation BEFREE The minor allelic frequencies of the MTHFD1 1958G>A and MTHFR 1298A>C in our populations were similar to those reported from Southeast Asian population, suggesting a possible explanation for the prevalence of this malformation in these regions. 28398708

2017

dbSNP: rs2236225
rs2236225
0.030 GeneticVariation BEFREE In people, a single nucleotide polymorphism of this gene (1958G>A; rs2236225) is associated with increased risk for bipolar disorder and schizophrenia, neural tube and other birth defects. 28559181

2017

dbSNP: rs121912678
rs121912678
0.020 GeneticVariation BEFREE We analyzed baseline whole body (minus skull) computed tomographic (CT) scans of 113 individuals with classic clinical features of FOP and the ACVR1 (R206H) mutation who were enrolled in a non-interventional natural history study ((NCT02322255)) for skeletal malformations, atypical morphology, intra-articular synovial osteochondromatosis, developmental arthropathy, and associated degenerative joint phenotypes. 31655222

2020