Mehmet Kirnap, Hulusi Atmaca, Fatih Tanriverdi, Osman Ozsoy, Kursad Unluhizarci, Fahrettin Kelestimur
OBJECTIVE: To investigate the hypothalamic-pituitary-adrenal (HPA) axis via the insulin-tolerance test (ITT), standard-dose (250 μg) ACTH test (SDT) and low-dose (1 μg) ACTH test (LDT) in patients with ankylosing spondylitis (AS). DESIGN: The study group included 13 male patients with AS who were diagnosed according to the Modified New York criteria …