本帖最后由 StephenW 于 2012-3-29 17:33 编辑
ResearchFuzheng Huayu recipe prevents nutritional fibrosing steatohepatitis in mice
Yan-hong Jia, Rong-Qi Wang, Hong-Mei Mi, Ling-Bo Kong, Wei-Guang Ren, Wen-Cong Li, Su-Xian Zhao, Yu-Guo Zhang, Wen-Juan Wu, Yue-Min Nan and Jun Yu
Lipids in Health and Disease 2012, 11:45 doi:10.1186/1476-511X-11-45
Published: 28 March 2012
Abstract (provisional)BackgroundFuzheng Huayu recipe (FZHY), a compound of Chinese herbal medicine, was reported to improve liver function and fibrosis in patients with hepatitis B virus infection. However, its effect on nutritional fibrosing steatohepatitis is unclear. We aimed to elucidate the role and molecular mechanism of FZHY on this disorder in mice. MethodsC57BL/6 J mice were fed with methionine-choline deficient (MCD) diet for 8 weeks to induce fibrosing steatohepatitis. FZHY and/or heme oxygenase-1 (HO-1) chemical inducer (hemin) were administered to mice, respectively. The effect of FZHY was assessed by comparing the severity of hepatic injury, levels of hepatic lipid peroxides, activation of hepatic stellate cells (HSCs) and the expression of oxidative stress, inflammatory and fibrogenic related genes. ResultsMice fed with MCD diet for 8 weeks showed severe hepatic injury including hepatic steatosis, necro-inflammation and fibrosis. Administration of FZHY or hemin significantly lowered serum levels of alanine aminotransferase, aspartate aminotransferase, reduced hepatic oxidative stress and ameliorated hepatic inflammation and fibrosis. An additive effect was observed in mice fed MCD supplemented with FZHY or/and hemin. These effects were associated with down-regulation of pro-oxidative stress gene cytochrome P450 2E1, up-regulation of anti-oxidative gene HO-1; suppression of pro-inflammation genes tumor necrosis factor alpha and interleukin-6; and inhibition of pro-fibrotic genes including alpha-smooth muscle actin, transforming growth factor beta 1, collagen type I (Col-1) and Col-3. ConclusionsOur study demonstrated the protective role of FZHY in ameliorating nutritional fibrosing steatohepatitis. The effect was mediated through regulating key genes related to oxidative stress, inflammation and fibrogenesis. The complete article is available as a provisional PDF. The fully formatted PDF and HTML versions are in production. |