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Objective To investigate the effects of Tuo tea flavonoids on D-galactose-induced aging mice in delaying aging and inhibiting inflammation. Methods The anti-aging efficacy of Tuo tea flavonoids were evaluated by measuring weight change, organ index and specific indicators in serum and tissue samples of aged mice treated with Tuo tea flavonoids. Results Tuo tea flavonoids could effectively prevent weight loss caused by aging, and also had a significant effect on preventing the shrinkage of key organs such as the thymus and brain. In addition, the compound also increased the levels of total antioxidant capacity (T-AOC), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in the blood and liver of aging mice, while reducing the concentrations of malondialdehyde (MDA) and nitric oxide (NO). At the same time, the levels of inflammation-related interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) cytokines in serum of aging mice were decreased. Further studies showed that in liver tissues, the expression levels of neuronal nitric oxide synthase (nNOS), endothelial nitric oxide synthase (eNOS), manganese superoxide dismutase (Mn-SOD), copper zinc superoxide dismutase (Cu/Zn-SOD) and catalase (CAT) mRNA increased. The inducible nitric oxide synthase (iNOS) showed a decreasing trend. Especially when the dose reached 100 mg/kg, the Tuo tea flavonoids showed better effects than the same dose of vitamin C. Conclusion As a natural product with potential life-prolonging function, the Tuo tea flavonoids show good biological activity.
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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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