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In this study a D-galactose-induced aging rat model combined with 1H NMR of serum and liver metabolomics were used to explore the anti-aging effect and the potential metabolic regulatory mechanism of Scutellaria baicalensis Georgi leaves. All procedures involving animal treatment were approved according to the Committee on the Ethics of Animal Experiments of Shanxi University. The results of physical characteristics, an open field test and serum biochemical indexes indicated that Scutellaria baicalensis Georgi leaves had an anti-aging effect that could ameliorate the characteristics of aging rats such as acquired hair loss and slow response, improve the spontaneous activity of aging rats, and decrease lipid peroxidation and glycosylation damage induced by D-galactose. Serum and liver metabolomics further revealed that Scutellaria baicalensis Georgi leaves could decrease serum and liver metabolism disturbances in aging rats, mainly through different metabolites and metabolic pathways. Specifically, 12 differential metabolites including glutamine and glutamate, 11 metabolic pathways including D-glutamine and D-glutamate metabolism and alanine, aspartate and glutamate metabolism in serum were significantly altered after the treatment. Simultaneously, five differential metabolites such as α-glucose and β-glucose, two metabolic pathways that are glycolysis or gluconeogenesis, and starch and sucrose metabolism in the liver were markedly altered.
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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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