title: The relation of neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and mean platelet volume with the presence and severity of Behçet's syndrome.
abstract: Behçet's syndrome (BS) is associated with chronic inflammation and endothelial dysfunction. Although there have been extensive investigations on neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume (MPV) in many diseases, their roles in BS is unclear. The purpose of the present study was to evaluate NLR, PLR, and MPV levels in BS patients and explore their clinical significance. The study included 254 patients with BS and 173 healthy individuals. Age, sex, age of onset, duration of disease, smoking, Behçet activity score, total white blood counts, neutrophil, platelet, and T lymphocyte counts of the patients were recorded. White blood cell (WBC), neutrophil, platelet, NLR, and PLR were significantly higher in patients with BS when compared with healthy controls (all p < 0.001). Lymphocyte counts and MPVs of the BS group were not statistically different from healthy controls (all p > 0.05). In the BS group, PLR and MPV were significantly different among the three severity groups (p = 0.037 and p = 0.016, respectively). We showed that any laboratory markers were not associated with joint, eye, central nervous system, large vessel, or gastrointestinal involvement in BS. NLR was shown to be an independent factor for BS by multivariate analysis. We suggest that NLR can be considered to be a diagnostic criterion of BS given the support of the findings from larger prospective studies.
authors.affiliation: Department of Dermatology and Venereology, Akdeniz University School of Medicine, Antalya, Turkey. Electronic address: alan_sevil@yahoo.com.
authors.forename: Sevil
authors.initials: S
authors.lastname: Alan
authors.affiliation: Department of Physical Medicine and Rehabilitation, Medical Faculty of Akdeniz University, Antalya, Turkey.
authors.forename: Serpil
authors.initials: S
authors.lastname: Tuna
authors.affiliation: Department of Ophthalmology, Akdeniz University School of Medicine, Antalya, Turkey.
authors.forename: Elif Betül
authors.initials: EB
authors.lastname: Türkoğlu
mesh_terms: D000328:Adult; D001528:Behcet Syndrome / Q000097:blood*; D016022:Case-Control Studies; D003710:Demography; D005260:Female; D006801:Humans; D007958:Leukocyte Count; D016015:Logistic Models; D008214:Lymphocytes / Q000473:pathology*; D008297:Male; D063847:Mean Platelet Volume; D009504:Neutrophils / Q000473:pathology*
keywords: Behçet's syndrome; MPV; NLR; PLR