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| Title: | A1298C polymorphism in the MTHFR gene predisposes to cardiovascular risk in rheumatoid arthritis |
Authors: | Palomino-Morales, Rogelio; Vázquez-Rodríguez, Tomás R.; Miranda-Filloy, J. A.; Fernández-Gutiérrez, B.; Martín, J.; González-Gay, M. A. | Issue Date: | 26-Apr-2010 | Publisher: | BioMed Central | Citation: | Arthritis Research and Therapy 12: R71 (2010) | Abstract: | [Introduction]: We determined the contribution of the methylene tetrahydrofolate reductase (MTHFR) 677 C>T and 1298 A>C gene polymorphisms to the susceptibility to rheumatoid arthritis (RA). 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. [Methods]: Six hundred and twelve patients fulfilling the 1987 American College of Rheumatology classification criteria for RA, seen at the rheumatology outpatient clinics of Hospital Xeral-Calde, Lugo and Hospital San Carlos, Madrid, were studied. Patients and controls (n = 865) were genotyped using predesigned TaqMan SNP genotyping assays. [Results]: No significant differences in allele or genotype frequencies for the MTHFR gene polymorphisms between RA patients and controls were found. Also, no association between the MTHFR 677 C>T polymorphism and CV events or endothelial dysfunction was observed. However, the MTHFR 1298 allele C frequency was increased in patients with CV events after 5 years (38.7% versus 30.3%; odds ratio = 1.45; 95% confidence interval = 1.00 to 2.10; P = 0.04) and 10 years (42.2% versus 31.0%; odds ratio = 1.62; 95% confidence interval = 1.08 to 2.43; P = 0.01) follow up. Moreover, patients carrying the MTHFR 1298 AC and CC genotypes had a significantly decreased flow-mediated endothelium-dependent vasodilatation (4.3 ± 3.9%) compared with those carrying the MTHFR 1298 AA genotype (6.5 ± 4.4%) (P = 0.005). [Conclusions]: Our results show that the MTHFR 1298 A>C gene polymorphism confers an increased risk for subclinical atherosclerosis and CV events in patients with RA. | Description: | 8 páginas, 1 figura, 3 tablas.-- et al. | Publisher version (URL): | http://dx.doi.org/10.1186/ar2989 | URI: | http://hdl.handle.net/10261/33694 | DOI: | 10.1186/ar2989 | ISSN: | 1478-6354 |
| Appears in Collections: | (IPBLN) Artículos |
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