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Focusing on the TCM-related adverse drug reactions, especially those conventionally non-toxic TCM induced hepatotoxicity, this paper has proposed and established the disease-syndrome-based toxicology evaluation pattern and approach for TCM, not only the normal rats, but the hepatic fibrosis model rat were studied hepatotoxic or hepatoprotective effects of rhubarb, meanwhile liver histopathology changes by histological tests such as HE and TUNEL staining. The metabolomics analysis method will be employed to screen the key metabolites and possible metabolic pathway of the dual effects of rhubarb in rats. The results showed that rhubarb could result in significant liver injury in normal rats, indicated by the elevation of plasma serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities (P < 0.01), as well as liver histopathology changes by histological tests such as HE and TUNEL staining; whereas the levels of ALT and AST were significantly decreased in the model group of rhubarb, and the histopathology of liver was significantly improved. The UPLC-QTOF/MS methods were used to characterize the differences metabolites in contrast group plasma of rats. Eventually, seven potential biomarkers such as taurine, L-arginine, creatine, L-valine, retinyl ester, and prostaglandin F2α were confirmed by multivariate statistical analysis and metabolic pathways enrichment analysis linked to six metabolic pathways, including taurine and hypotaurine metabolism, primary bile acid biosynthesis, arginine and proline metabolism, arachidonic acid metabolism, retinol metabolism and valine, leucine and isoleucine biosynthesis. In summary, the results suggested the dual effects of rhubarb screened by taurine and hypotaurine metabolism, primary bile acid biosynthesis and arginine and proline metabolism may be the key metabolic pathway related to You Gu Wu Yun phenomenon of rhubarb. This study will provide new vision and illustration of scientific evidences for the hepatotoxicity assessment and rational use of those drugs containing anthraquinones.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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