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Chinese Pharmacological Bulletin ; (12): 147-152, 2022.
Artículo en Chino | WPRIM | ID: wpr-1014185

RESUMEN

Aim To explore the mechanism of Buyang huanwu decoction attenuating cerebral ischemia-reper- fusion injury in rats by regulating autophagv through AMPK/mTOR/ULKl signaling pathway.Methods Left eerebral ischemia model in rats was established by modified thread ocelusion method, then the rats in each group were given medieine onee every 24 hours for 3 times.After 72 hours of reperfusion, the nerve injury and the changes of cerebral infarction volume were observed; the morphology, number and apoptosis of nerve cells were observed by Nissl staining and TUNEL staining; the expression of autophagy protein and AMPK/mTOR/LJLKl autophagy signaling pathway related proteins were detected by Western blot.Results Buyang huanwu decoction could improve the neurological deficit of rats, reduce the volume of cere bral infarction and neuronal apoptosis, reduce the pathological injury of brain tissues, inhibit the phosphorylation activation of AMPK, relieve the inhibition of AMPK on downstream mTOR and LJLK1 , promote the phosphorylation activation of both, and inhibit autophagy.AMPK agonist metformin increased the level of autophagy and reversed the protective effect of Buyang huanwu decoction on cerebral ischemia-reperfusion injury in rats.Conclusion Buyang huanwu decoction mediates AMPK/mTOR/ULKl autophagy signaling pathway to play a neuroprotective effect on cerebral is- chemia-reperfusion injury in rats.

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