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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Inhibitory effects of JTE-522, a novel prostaglandin H synthase-2 inhibitor, on adjuvant-induced arthritis and bone changes in rats.

OBJECTIVE AND DESIGN: To investigate the effect of JTE-522, a novel selective prostaglandin H synthase (PGHS)-2 inhibitor, on adjuvant-induced arthritis and bone changes. SUBJECTS: Male Lewis rats at 8 weeks old were immunized with heat-killed mycobacteria. TREATMENT: JTE-522 (0.1-30 mg/kg) and indomethacin (0.1-3 mg/kg) were administered orally once-daily after immunization. METHODS: Paw swelling, bone changes in arthritic paws and vertebrae, urinary levels of deoxypyridinoline and pyridinium crosslinks, and the incidence of gastric lesions were determined in arthritic rats. RESULTS: JTE-522 (from 0.3 mg/kg) suppressed the development of paw swelling, and also reduced bone damage (score and bone mineral density) in arthritic paws and the urinary excretion of deoxypyridinoline and pyridinium crosslinks. However, JTE-522 did not cause gastric lesions even at 30 mg/kg in arthritic rats. CONCLUSIONS: These results suggest that JTE-522 possesses potent anti-arthritic activities and suppressive activity on inflammatory bone resorption without gastric side effects.[1]

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