Abstract
Although nitric oxide (NO) plays important roles in pathogenesis of various liver diseases, the role of NO in the in vivo mechanism of Fas-mediated fulminant hepatitis is not known well. The effect of anti-Fas antibody (Jo2) on the survival, liver function, and histology was analyzed in wild-type (WT) and inducible NO synthase (iNOS)-deficient (iNOS −/−) mice. Upon intravenous injection of a lethal dose of Jo2, WT mice died on fulminant hepatitis within 12 h. Under identical conditions, however, iNOS −/− mice showed strong resistance to Jo2 and survived without revealing liver injury. In conclusion, these observations suggest that regulation of NO metabolism may have therapeutic potential in the treatment of patients with fulminant hepatitis.
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