OBJECTIVE: To study the local and systemic behavior of the tumor necrosis factor-alpha (TNF-alpha) in patients with active uveitis. METHODS: TNF-alpha levels were measured in aqueous humor and peripheral blood samples using an enzyme-linked immunosorbent assay from 23 patients with uveitis and 16 control patients who had been operated on for uncomplicated cataracts. RESULTS: Aqueous humor and sera of patients with uveitis showed higher levels of TNF-alpha than those of controls (p < 0.001). A comparison of cytokine levels between aqueous humor and sera showed significantly higher levels of TNF-alpha in serum than aqueous humor (p < 0.001). Correlation studies using the regression test for successive steps showed that serum TNF-alpha levels correlated with recurrent uveitis (r = 0.4150; p = 0.0489). CONCLUSIONS: TNF-alpha is a cytokine that participates actively in the pathogenesis of clinical uveitis. Our data emphasize the greater systemic than local participation of TNF-alpha. Finally, an elevated serum TNF-alpha seems to be associated with a recurrent pattern of uveitis. Copyright 2001 S. Karger AG, Basel
OBJECTIVE: To study the local and systemic behavior of the tumor necrosis factor-alpha (TNF-alpha) in patients with active uveitis. METHODS:TNF-alpha levels were measured in aqueous humor and peripheral blood samples using an enzyme-linked immunosorbent assay from 23 patients with uveitis and 16 control patients who had been operated on for uncomplicated cataracts. RESULTS: Aqueous humor and sera of patients with uveitis showed higher levels of TNF-alpha than those of controls (p < 0.001). A comparison of cytokine levels between aqueous humor and sera showed significantly higher levels of TNF-alpha in serum than aqueous humor (p < 0.001). Correlation studies using the regression test for successive steps showed that serum TNF-alpha levels correlated with recurrent uveitis (r = 0.4150; p = 0.0489). CONCLUSIONS:TNF-alpha is a cytokine that participates actively in the pathogenesis of clinical uveitis. Our data emphasize the greater systemic than local participation of TNF-alpha. Finally, an elevated serum TNF-alpha seems to be associated with a recurrent pattern of uveitis. Copyright 2001 S. Karger AG, Basel
Authors: Nilesh M Kalariya; Mohammad Shoeb; Aramati B M Reddy; Min Zhang; Frederik J G M van Kuijk; Kota V Ramana Journal: Invest Ophthalmol Vis Sci Date: 2010-04-30 Impact factor: 4.799
Authors: Panagiotis G Theodossiadis; Vasilios S Liarakos; Petros P Sfikakis; Alexander Charonis; Georgios Agrogiannis; Nikolaos Kavantzas; Ioannis A Vergados Journal: Graefes Arch Clin Exp Ophthalmol Date: 2008-11-04 Impact factor: 3.117