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Zhao Q.-G.,Beijing Institute of Pharmacology and Toxicology | Wang Y.-H.,China Military Institute of Traditional Chinese Medicine | Ma Z.-J.,Capital Medical University | Zhang P.,China Military Institute of Traditional Chinese Medicine | And 7 more authors.
Chinese Traditional and Herbal Drugs | Year: 2015

Objective: To establish a method suitable to the quality evaluation of the roots in Tripterygium wilfordii based on hepatotoxic potency. Methods: The inhibitory rates of T. wilfordii and its regional substitute-T. hypoglaucum, with normal human hepatocytes (L02 cell line) as carrier, were established by optimizing a series of factors, such as test samples prepared with conditions. Results: Taking p-acetaminophenol as positive control (toxic potency was 400 U/g), The 50% ethanol extract of T. wilfordii was dried under ultrasonic vacuum to obtaine the dry paste. The test solution with crude drug of 3 mg/mL was prepared by medium. The dilution ratio was 1:0.65. The hepatotoxic potencies of 18 batches of T. wilfordii and 5 batches of T. hypoglaucum were 17.78-4131.4 and 209.42-7422.2 U/g, respectively, detected by the reaction parallel line method, and the differences were over 200 and 30 times. There was the significant hepatotoxic potency of T. wilfordii and T. hypoglaucum from the various origins. In addition, the fresh collected samples had the larger hepatotoxic potency than that in the dried samples collected in the market. Conclusion: The preliminarily established hepatotoxic potency bioassay is useful to evaluate the quality of T. wilfordii which directs the correlation with the drug's hepatotoxic adverse effect in clinic. The method can provide the reference for the clinical safety use of T. wilfordii based on the quality control and be as the quantitative method used to screen the toxic components from T. wilfordii. ©, 2015, Editorial Office of Chinese Traditional and Herbal Drugs. All right reserved. Source

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