ArticleClinical rheumatology2016
Reduced folate carrier-1 80G > A gene polymorphism is not associated with methotrexate treatment response in South Indian Tamils with rheumatoid arthritis.
Article in Clinical rheumatology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 4 of them syntheses that pooled it.
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Who cites it
8 citing papers in PubMed, 4 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- Predictive genetic biomarkers for the efficacy of methotrexate in rheumatoid arthritis: a systematic review.The pharmacogenomics journal · 2020Pooled it
- Genetic markers in methotrexate treatments.The pharmacogenomics journal · 2018Pooled it
- Polymorphisms and Pharmacogenomics for the Clinical Efficacy of Methotrexate in Patients with Rheumatoid Arthritis: A Systematic Review and Meta-analysis.Scientific reports · 2017Pooled it
- Pooled it
- Are gene polymorphisms related to adverse events of methotrexate in patients with rheumatoid arthritis? A retrospective cohort study based on an updated meta-analysis.Therapeutic advances in chronic disease · 2020Article
- MTRR A66G, RFC1 G80A, and MTHFR C677T and A1298C Polymorphisms and Disease Activity in Mexicans with Rheumatoid Arthritis Treated with Methotrexate.Genetic testing and molecular biomarkers · 2017Article
- Preliminary study for predicting better methotrexate efficacy in Japanese patients with rheumatoid arthritis.Journal of pharmaceutical health care and sciences · 2016Article
- Pharmacogenomics of Methotrexate Membrane Transport Pathway: Can Clinical Response to Methotrexate in Rheumatoid Arthritis Be Predicted?International journal of molecular sciences · 2015Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Methotrexate (MTX) is the most commonly used disease-modifying drug to treat rheumatoid arthritis (RA). Although there are no reliable molecular markers to predict the treatment response and adverse effects to MTX therapy, the polymorphisms in genes coding for MTX metabolizing enzymes and transporters may play a crucial role. The reduced folate carrier-1 (RFC-1) is a bidirectional anion exchanger which transports MTX and folinic acid. It is reported to influence MTX treatment response and adverse effects in some ethnic populations but not in others. It is also associated with susceptibility to various diseases including systemic lupus erythematosus (SLE). The present study was aimed at investigating the role of RFC-1 80G > A gene polymorphism in association with disease susceptibility, MTX treatment response and the MTX-induced adverse events in the South Indian Tamil patients with rheumatoid arthritis. The RFC-1 80G > A gene polymorphism was investigated in 327 patients with RA and in 322 healthy controls by PCR-RFLP method. It was found that the heterozygous RFC-1 80 GA genotype was associated with protection against RA [p = 0.02, odds ratio (OR) 0.69, 95 % confidence interval (CI) 0.50-0.95]. However, it was not found to be associated with MTX treatment response. The RFC-1 G allele frequency was higher in patients with adverse effects, but the difference was not statistically significant (p = 0.08, OR 1.44, 95 % CI 0.97-2.13). RFC-1 80G > A gene polymorphism confers protection for RA. However, it is not associated with MTX treatment response and MTX-induced adverse effects in South Indian Tamil patients with RA.
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