INTERNAL MEDICINE, cilt.48, sa.16, ss.1363-1368, 2009 (SCI-Expanded)
Objective Endothelial dysfunction is present in ankylosing spondylitis (AS). However, the etiology of events is still unclear. The aim of the present study was to investigate whether there are abnormalities in nitric oxide (NO) metabolism and endothelin-1 (ET-1) in AS patients.