MTHFR, methylenetetrahydrofolate reductase, 4524

N. diseases: 985; N. variants: 137
Source: ALL
Disease Score gda Association Type Type Original DB Sentence supporting the association PMID PMID Year
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Polymorphisms C677T and A1298C in the MTHFR gene in Mexican patients with rheumatoid arthritis treated with methotrexate: implication with elevation of transaminases. 20514079 2011
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE <b>Conclusion:</b> Our results showed that the MTHFR [677C>T (rs1801133)] TT genotype is associated with ADRs to MTX in Chinese RA patients. 30546311 2018
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE The aim of this study was to investigate the MTHFR C677T and IL-4 70bp VNTR variation in Turkish patients with RA and evaluate if there was an association with clinical features, especially ocular involvement, in RA patients. 23685257 2013
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Pooled results showed that MTHFR gene A1298C polymorphism was not significantly related to MTX toxicity or efficacy in RA patients. 28544525 2017
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Associations between asymmetric dimethylarginine, homocysteine, and the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism (rs1801133) in rheumatoid arthritis. 26599798 2016
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE In this regard, besides a strong association between the HLA-DRB1∗04 shared epitope alleles and both endothelial dysfunction, an early step in the atherosclerotic process, and clinically evident CV disease, other polymorphisms belonging to genes implicated in inflammatory and metabolic pathways, located inside and outside the HLA region, such as the 308 variant (G > A, rs1800629) of the TNFA locus, the rs1801131 polymorphism (A > C; position + 1298) of the MTHFR locus, or a deletion of 32 base pairs on the CCR5 gene, seem to be associated with the risk of CV disease in patients with RA. 22927710 2012
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE C677T MTHFR gene polymorphism is associated with RA in Egyptians. 28215593 2017
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Polymorphisms in the MTHFR gene influence the effectiveness of methotrexate, the first line of therapy in RA. 27338350 2016
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease LHGDN Polymorphisms in the thymidylate synthase and methylenetetrahydrofolate reductase genes and sensitivity to the low-dose methotrexate therapy in patients with rheumatoid arthritis. 12684695 2003
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Although a small sample study, our findings do not suggest a significant association of MTHFR/TS allele/genotype with MTX response in our ethnically distinct Indian (Asian) RA patients. 18274813 2008
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Several authors have reported contradictory results related to C677T polymorphism in the MTHFR gene and response to MTX in RA. 26314492 2015
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Therefore, we conclude that homocysteine might affect the inflammatory status of patients, and the MTHFR 677C>T SNP could be a predictive factor of hyperhomocysteinemia in patients with RA. 19283524 2009
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE In this study, the six polymorphisms associated with rheumatoid arthritis (RA), N-acetyltransferase2 (NAT2) gene polymorphisms T341C, G590A, and G857A, methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms C677T and A1298C, and serum amyloid A1 (SAA1) gene promoter polymorphism C-13T were simultaneously detected by the electrochemical DNA chip and the loop-mediated isothermal amplification (LAMP) method, which is a novel technique for DNA amplification. 17985847 2007
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Cardiovascular events are not associated with MTHFR polymorphisms, but are associated with methotrexate use and traditional risk factors in US veterans with rheumatoid arthritis. 23547211 2013
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Our study suggests that MTHFR C677T and ATIC T675C genotyping combined with clinicopathological data may help to identify patients whom will not benefit from MTX treatment and, therefore, assist clinicians in personalizing RA treatment. 24967362 2014
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE We also assessed whether these two MTHFR gene polymorphisms may be implicated in the development of cardiovascular (CV) events and subclinical atherosclerosis manifested by the presence of endothelial dysfunction, in a series of Spanish patients with RA. 20423475 2010
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Further study for association of MTHFR polymorphisms with MTX toxicities should be needed in larger RA population. 21773884 2012
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE The genetic polymorphisms of methylenetetrahydrofolate reductase (MTHFR) have been associated with increased toxicity of methotrexate (MTX), a folic acid antagonist that is widely used to treat cancer and immunosuppressive disorders such as rheumatoid arthritis. 16272757 2005
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE The combination of MTHFR 1298AA along with ADORA2A rs2298383 CC or CT genotypes occurring in one-third of RA patients showed a higher frequency of general nodules 15/59 (25.4%) as well as developing nodules during MTX treatment 13/59 (22.0%) in comparison with the overall studied group: 24/185 (13.0%) and 19/185 (10.3%), respectively. 27846189 2017
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE To examine the association between 677C>T and 1298A>C MTHFR polymorphisms and sulfasalazine efficacy for the treatment of RA, a total of 117 RA patients treated with sulfasalazine (1 g daily; duration of treatment 17 +/- 5 months) were analyzed. 19578646 2009
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE In addition to the strong association between alleles of the HLA-DRB1*04 shared epitope and both subclinical and clinically evident CV disease, genes implicated in inflammation and metabolism, such as TNFA, MTHFR, and CCR5, seem to be associated with a higher risk of CV disease in patients with RA. 25163740 2015
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE TGFβ1 and MTHFR A1298C were associated with RA using the dominant and the co-dominant models. 26147289 2015
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE The results demonstrated that the C677T polymorphism in the MTHFR gene is associated with MTX toxicity in Tunisian RA patients. 26077125 2016
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Higher serum B12 levels and decreased frequency of the MTHFR 677TT variant in RA patients could potentially account for the observed differences between the groups. 29501539 2018
CUI: C0003873
Disease: Rheumatoid Arthritis
Rheumatoid Arthritis
0.400 GeneticVariation disease BEFREE Frequencies of MTHFR C677T and A1298C were similar to those reported in Japanese RA patients, while frequencies of RFC-1 G80A genotypes differed from those reported in RA patients in the United States. 17965559 2007