Dong quai is said to improve abnormal protein metabolism in people with chronic hepatitis or hepatic cirrhosis. Evidence comes from an in vivo study in which 5% dong quai was added to the daily diet of rats, resulting in enhanced metabolism, increased hepatic oxygen utilisation, and increased glutamic acid and cysteine oxidation (Micromedex 2003). Dong quai has been found to have antioxidant activity (Wu et al 2004), as well as antiproliferative and pro-apoptotic activities in hepatic stellate cells in vitro, suggesting a potential antifibrotic action (Chor et al 2005). Dong quai 361
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