Wuzi Yanzong Pill Plays A Neuroprotective Role in Parkinson's Disease Mice via Regulating Unfolded Protein Response Mediated by Endoplasmic Reticulum Stress.

Autor:	Li, Yan-rong, Fan, Hui-jie, Sun, Rui-rui, Jia, Lu, Yang, Li-yang, Zhang, Hai-fei, Jin, Xiao-ming, Xiao, Bao-guo, Ma, Cun-gen, Chai, Zhi
Předmět:	DRUG therapy for Parkinson's disease PROTEINS BIOLOGICAL models HERBAL medicine NEURONS IMMUNOGLOBULINS ENDOPLASMIC reticulum ANIMAL experimentation GAIT in humans IMMUNOHISTOCHEMISTRY WESTERN immunoblotting INTRAPERITONEAL injections TREATMENT effectiveness COMPARATIVE studies NEUROPROTECTIVE agents DIAGNOSIS BODY movement FLUORESCENT antibody technique STATISTICAL sampling TYROSINE CHINESE medicine MICE CASPASES DRUG administration DRUG dosage
Zdroj:	Chinese Journal of Integrative Medicine; Jan2023, Vol. 29 Issue 1, p19-27, 9p
Abstrakt:	Objective: To investigate the protective effects and its possible mechanism of Wuzi Yanzong Pill (WYP) on Parkinson's disease (PD) model mice. Methods: Thirty-six C57BL/6 male mice were randomly assigned to 3 groups including normal, PD, and PD+WYP groups, 12 mice in each group. One week of intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was used to establish the classical PD model in mice. Meanwhile, mice in the PD+WYP group were administrated with 16 g/kg WYP, twice daily by gavage. After 14 days of administration, gait test, open field test and pole test were measured to evaluate the movement function. Tyrosine hydroxylase (TH) neurons in substantia nigra of midbrain and binding immunoglobulin heavy chain protein (GRP78) in striatum and cortex were observed by immunohistochemistry. The levels of TH, GRP78, p-PERK, p-eIF2α, ATF4, p-IRE1α, XBP1, ATF6, CHOP, ASK1, p-JNK, Caspase-12, -9 and -3 in brain were detected by Western blot. Results: Compared with the PD group, WYP treatment ameliorated gait balance ability in PD mice (P<0.05). Similarly, WYP increased the total distance and average speed (P<0.05 or P<0.01), reduced rest time and pole time (P<0.05). Moreover, WYP significantly increased TH positive cells (P<0.01). Immunofluorescence showed WYP attenuated the levels of GRP78 in striatum and cortex. Meanwhile, WYP treatment significantly decreased the protein expressions of GRP78, p-PERK, p-eIF2α, ATF4, p-IRE1 α, XBP1, CHOP, Caspase-12 and Caspase-9 (P<0.05 or P<0.01). Conclusions: WYP ameliorated motor symptoms and pathological lesion of PD mice, which may be related to the regulation of unfolded protein response-mediated signaling pathway and inhibiting the endoplasmic reticulum stress-mediated neuronal apoptosis pathway. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink