CXCL16 and familial Mediterranean fever: CXCL16 levels were significantly higher in serum of FMF patients than controlsNo correlation between CXCL16 levels and attack frequency and disease durationThe cut off value of CXCL16 was 2.68 ng/ml with 83% sensitivity and 68% specificityLogistic regression analysis indicated that high CXCL16 was a predictive parameter for FMF disease