Abstract
The objective of the study was to investigate the association between IL-8 and other biomarkers of endothelial dysfunction (MCP-1, V-CAM, I-CAM) and the disease activity scores in a sample of 54 patients with ankylosing spondylitis (AS) without use of biological agents. Fifty-four AS patients without treatment with anti-TNFs agents between 18 and 80 years old, who met modified New York criteria and at the same time the axial ASAS criteria, were evaluated using an epidemiological questionnaire that included among others clinical data, BASDAI, BASFI, ASQoL, ASDAS and plasma levels of CRP, ESR, MCP-1, IL-8, ICAM-1 and VCAM-1. IL-8 varied in proportion to disease activity rates (BASDAI and ASDAS) p < 0.05, being strongly correlated with the disease activity. The levels of adhesion molecules I-CAM and VCAM, as described in other studies, were positively correlated with predisposing factors for cardiovascular disease. IL-8 has shown to be strongly correlated with clinical markers of disease activity and inflammatory activity and may be an additional variable to the overall assessment of the activity of the AS.
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