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Title: Serum levels of anticyclic citrullinated peptide antibodies, interleukin-6, tumor necrosis factor-α, and C-reactive protein are associated with increased carotid intima-media thickness: A cross-sectional analysis of a cohort of rheumatoid arthritis patients without cardiovascular risk factors
Author: Vazquez-Del Mercado, M.
Nunez-Atahualpa, L.
Figueroa-Sanchez, M.
Gomez-Banuelos, E.
Rocha-Munoz, A.D.
Martin-Marquez, B.T.
Corona-Sanchez, E.G.
Martinez-Garcia, E.A.
Macias-Reyes, H.
Gonzalez-Lopez, L.
Gamez-Nava, J.I.
Navarro-Hernandez, R.E.
Nunez-Atahualpa, M.A.
Andrade-Garduno, J.
Issue Date: 2015
Abstract: The main cause of death in rheumatoid arthritis (RA) is cardiovascular events. We evaluated the relationship of anticyclic citrullinated peptide (anti-CCP) antibody levels with increased carotid intima-media thickness (cIMT) in RA patients. Methods. Forty-five anti-CCP positive and 37 anti-CCP negative RA patients, and 62 healthy controls (HC) were studied. All groups were assessed for atherogenic index of plasma (AIP) and cIMT. Anti-CCP, C-reactive protein (CRP), and levels of tumor necrosis factor alpha (TNFα) and interleukin-6 (IL-6) were measured by enzyme-linked immunosorbent assay (ELISA). Results. The anti-CCP positive RA patients showed increased cIMT compared to HC and anti-CCP negative (P<0.001). Anti-CCP positive versus anti-CCP negative RA patients, had increased AIP, TNFα and IL-6 (P<0.01), and lower levels of high density lipoprotein cholesterol (HDL-c) (P=0.02). The cIMT correlated with levels of anti-CCP (r=0.513, P=0.001), CRP (r=0.799, P<0.001), TNFα (r=0.642, P=0.001), and IL-6 (r=0.751, P<0.001). In multiple regression analysis, cIMT was associated with CRP (P<0.001) and anti-CCP levels (P=0.03). Conclusions. Levels of anti-CCP and CRP are associated with increased cIMT and cardiovascular risk supporting a clinical role of the measurement of cIMT in RA in predicting and preventing cardiovascular events. Copyright © 2015 Mónica Vázquez-Del Mercado et al.
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