A herbal preparation "Compound Codyceps-TCM-700C (CC-700C)" was tested for hepatoprotective effect against the carbon tetrachloride induced liver damages in Sprague-Dawley rat model for a period of 6-weeks. Two dosage levels of CC-700C, respectively 286.2 mg/kg-bw (L-TCM) and 2862 mg/kg-bw (H-TCM), and a positive control Silymarin (Sigma) were used to compare their therapeutic effect. Both CC-700C's and Silymarin showed nontoxic in nature, as evidenced by body weight gain, organ weights and appearance including liver, spleen, and kidney. The activities of aspartate aminotransferase (AST) and alanine-aminotransferase (ALT) were more effectively suppressed by CC-700C than Silymarin. In addition, all levels of serum bilirubin, serum albumin, triglyceride (TG), total cholesterol (TC), platelet count (PLT), and prothombin time (PT) except TG were shown effectively restored to normal values by CC-700C and Silymarin. Moreover, although levels of glutathione (GSH), glutathione reductase (GSH-Rd), and superoxide dismutase (SOD) were equally maintained by these three preparations, glutathione peroxidase (GSH-Px) was suppressed only by H-TCM, and SOD only by Silymarin. In contrast, the activity of catalase efficiently recovered to control level on administration of CC-700C, being far better than Silymarin. Finally the liver collagen content, an indication of fibrosis, was also significantly suppressed by CC-700C, better effect was by L-TCM, but both levels were superior to Silymarin. Conclusively, the herbal preparation "Compound Cordyceps TCM-700C" is a potent hepatoprotective preparation. For therapeutic use, a dosage of 286.2 mg/kg-bw would be sufficiently effective.
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