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Abstract Title:

Curcumin and saikosaponin a inhibit chemical-induced liver inflammation and fibrosis in rats.

Abstract Source:

Mol Vis. 2007 Jul 24;13:1291-7. PMID: 20128048

Abstract Author(s):

Shu-Ju Wu, Ka-Wai Tam, Ya-Hui Tsai, Chun-Chao Chang, Jane C-J Chao

Article Affiliation:

Taipei Medical University, Taiwan.

Abstract:

Curcumin and saikosaponin A as antioxidants improve antioxidant status. This study investigated the anti-inflammatory and antifibrotic actions of curcumin and saikosaponin A on CCl(4)-induced liver damage. Sprague-Dawley rats were randomly divided into control, CCl(4), CCl(4)+ curcumin (0.005%; CU), CCl(4) + saikosaponin A (0.004%; SS), and CCl(4) + curcumin + saikosaponin A (0.005% + 0.004%; CU + SS) groups. Carbon tetrachloride (40% in olive oil) at a dose of 0.75 ml/kg was injected intraperitoneally once a week. Curcumin and saikosaponin A were supplemented alone or in combination with diet 1 week before CCl(4) injection for 8 weeks. After 8-week supplementation, histopathological results showed hepatic collagen deposition was significantly reduced in the CU and SS groups, and activated nuclear factor-kappa B expression induced by CCl(4) in the liver was significantly inhibited by curcumin and/or saikosaponin A. Hepatic proinflammatory cytokines tumor necrosis factor-alpha, interleukin-1beta, and interleukin-6 were significantly inhibited, and anti-inflammatory cytokine interleukin-10 was significantly increased by supplementation with curcumin and/or saikosaponin A. Additionally, curcumin and/or saikosaponin A significantly reduced the increased levels of hepatic transforming growth factor-beta1 and hydroxyproline after CCl(4) treatment. Therefore, supplementation with curcumin and/or saikosaponin A suppress inflammation and fibrogenesis in rats with CCl(4)-induced liver injury. However, the combination has no additive effects on anti-inflammation and antifibrosis.

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Sayer Ji
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