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The effects of alcohol extracts from roots, stems, leaves, and flowers of Scutellaria Baicalensis Georgi (SBG) on endogenous metabolism in D-gal-induced aging-model rats were investigated by 1H NMR metabolomics. Results showed that 32 endogenous metabolites were identified in the urine. Combined with the VIP value and t-test, 14 different metabolites were found by multivariate statistical analysis of the spectrum. Compared with the control group, the content of α-ketoglutaric acid, hippuric acid and 3-hydroxybutyrate in the urine of rats in the model group was significantly decreased (P < 0.05) and the content of trimethylamine oxide, glycine, alanine, lactic acid, dimethylglycine, acetate, pyruvate, taurine, allantoin, betaine, N-acetylated glycoprotein was significantly increased (P < 0.05). The metabolites were mainly derived from taurine and hypo-taurine metabolism; glycine, serine and threonine metabolism; pyruvate metabolism; glycolysis/gluconeogenesis; glyoxylic acid and dicarboxylic acid metabolism; and the tricarboxylic acid cycle. The content of differential metabolites in urine samples was altered by the alcohol extracts from the different parts of SBG. Leaves extracts of SBG had the greatest effect on urine metabolites, and mainly affected taurine and hypo-taurine metabolism; glycine, serine and threonine metabolism; and pyruvate metabolism. This study provides a reliable experimental basis for the future development of SBG. This animal experiment was approved by the Committee on the Ethics of Animal Experiments of Shanxi University (SXULL2016036).
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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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