Blood monocyte subsets and selected cardiovascular risk markers in rheumatoid arthritis of short duration in relation to disease activity

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Abstract

Objectives. To evaluate blood monocyte subsets and functional monocyte properties in patients with rheumatoid arthritis (RA) of short duration in the context of cardiovascular (CV) risk and disease activity. Methods. We studied conventional markers of CV risk, intima media thickness (IMT), and blood monocyte subsets in 27 patients aged 41 ± 10 years with RA of short duration (median 12 months) and 22 healthy controls. The RA subjects were divided into low (DAS28: 2.6-5.1) and high (DAS28 > 5.1) disease activity. Results. RA patients exhibited increased levels of intermediate (CD14++CD16+) monocytes with decreased CD45RA expression compared to controls, increased counts of classical (CD14++CD16-) monocytes, and decreased percentages of nonclassical (CD14+CD16++) monocytes. Patients with high disease activity had lower HLA DR expression on classical monocytes compared to low disease activity patients. There were no differences in monocyte subsets between subjects with DAS > 5.1 and DAS ≤ 5.1. There were no significant intergroup differences in IMT and the majority of classical CV risk factors. Conclusions. Patients with RA of short duration show alteration in peripheral blood monocyte subsets despite the fact that there is no evidence of subclinical atherosclerosis. Disease activity assessed with DAS28 was associated with impaired functional properties but not with a shift in monocyte subpopulations.

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Klimek, E., Mikołajczyk, T., Sulicka, J., Kwas̈ny-Krochin, B., Korkosz, M., Osmenda, G., … Skalska, A. (2014). Blood monocyte subsets and selected cardiovascular risk markers in rheumatoid arthritis of short duration in relation to disease activity. BioMed Research International, 2014. https://doi.org/10.1155/2014/736853

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