Rheumatoid arthritis is an inflammatory disease with high incidence of cardiovascular disease due to accelerated atherosclerosis. Osteoprotegerin (OPG) has been associated with increased risk of atherosclerotic disease in the general population. Several polymorphisms in the OPG gene with functional effects on cardiovascular disease in non-rheumatic individuals have been described. Therefore, we aimed to analyze the effect of three of these functional OPG polymorphisms on the risk of cardiovascular disease in a large and well-characterized cohort of Spanish patients with rheumatoid arthritis.
Three OPG gene variants (rs3134063, rs2073618 and rs3134069) were genotyped by TaqMan assays in 2027 Spanish patients with rheumatoid arthritis. Anti-cyclic citrullinated peptide (anti-CCP) antibody testing was positive in 997 of 1714 tested. Also, 18.3% of the whole series had experienced cardiovascular events, including 5.4% with cerebrovascular accidents. The relationship between OPG variants and cardiovascular events was assessed using Cox regression.
No association between OPG gene variants and cardiovascular disease was observed in the whole group of rheumatoid arthritis patients or in anti-CCP positive patients. Nevertheless, a protective effect of CGA haplotype on the risk of cardiovascular disease in general, and specifically in the risk of cerebrovascular complications after adjusting for sex, age at disease diagnosis and traditional cardiovascular risk factors was disclosed in anti-CCP negative patients (HR?=?0.54; 95%CI: 0.31-0.95; p?=?0.032 and HR?=?0.17; 95%CI: 0.04-0.78; p?=?0.022, respectively).
Our results indicate a protective effect of the OPG CGA haplotype on cardiovascular risk, mainly due to a protective effect against cerebrovascular events in anti-CCP negative rheumatoid arthritis patients.
Fuente: PLoS One. 2014 Sep 3;9(9):e106823
Editorial: Public Library of Science
Año de publicación: 2014
Nº de páginas: 6
Tipo de publicación: Artículo de Revista
LÓPEZ MEJÍAS, R
GARCÍA BERMÚDEZ, M
GONZÁLEZ JUANATEY, C
FRANCISCO JAVIER LLORCA DIAZ
UBILLA GARCÍA, BEGOÑA
MIRANDA FILLOY, JA
GÓMEZ VAQUERO, C
RODRÍGUEZ RODRÍGUEZ, L
FERNÁNDEZ GUTIERREZ, B
PASCUAL SALCEDO, D
LÓPEZ LONGO, FJ
RICARDO BLANCO ALONSO
GONZÁLEZ ALVARO, I
MIGUEL ANGEL GONZALEZ-GAY MANTECON