To systematically explore the antidepressant multi-target mechanism of Shenge Bushen Capsules, and evaluate its direct effect on dopamine (DA) and norepinephrine (NE) system, as well as the inhibition of monoamine oxidase A (MAO-A) activity and the protective effect on glucose-deficient and hypoxic neurons.
The effects of yohimbine on DA and NE systems were evaluated by apomorphine-induced mouse stereotyped behavior model and yohimbine-enhanced toxicity test, respectively. Its effect on MAO-A activity in mouse brain was studied by in vitro fluorescence assay. The model of oxygen-glucose deprivation injury was established by primary cultured mouse cortical neurons, and the neuroprotective activity was evaluated by detecting the leakage rate of lactate dehydrogenase (LDH).
Shenge Bushen Capsules had no significant effect on apomorphine-induced stereotyped behavior and did not enhance the lethal toxicity of yohimbine. In vitro experiments showed that the drug had a significant inhibitory effect on MAO-A at a concentration of 4×10-4 g·mL-1. In the neuroprotective experiment, Shenge Bushen Capsules could significantly reduce the LDH leakage rate of glucose-deficient hypoxic neurons at a low concentration of 10×10-6 g·mL-1 in a concentration-dependent manner.
The antidepressant effect of Shenge Bushen Capsules is not achieved by directly regulating the DA or NE system. The mechanism is related to the inhibition of MAO-A activity to reduce the degradation of monoamine neurotransmitters and the direct protection of neurons from damage.
| 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 |