• B Adam and E Calikoglu.
• Department of Biochemistry, Fatih University Medical Faculty, 06700 Gankaya, Ankara, Turkey.
• J Eur Acad Dermatol Venereol. 2004 May 1; 18 (3): 318-20.

BackgroundErythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and cytokines, including serum interleukin (IL)-6, IL-8 and IL-10, and tumour necrosis factor-alpha (TNF-alpha) have been proposed as disease activity markers in Behçet's disease (BD), although studies have shown conflicting results for IL-6. Serum procalcitonin (PCT) levels in active BD have not yet been investigated.ObjectiveThe aim of the present study was to determine the reliability of serum IL-6 and PCT levels as well as CRP as biological markers for activity of BD.MethodsSerum PCT, IL-6 and CRP protein levels were measured in patients with active BD (n = 15) and in healthy control subjects (n = 15). IL-6 and PCT levels were measured in serum by chemiluminescent assay. In addition, a nephelometric method was used to analyse CRP concentrations in serum.ResultsSerum CRP and IL-6 values were significantly higher in the subjects with active disease than in the healthy controls (P < 0.05), but there was no significant difference in the levels of PCT in the two groups.ConclusionThe results of our study suggest that serum CRP and IL-6 levels are elevated in patients with active BD, but that serum PCT values are not elevated in these patients.

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