LI Chen,WANG Peng,WANG Liang,et al.Effect of Bushen Huoxue Granule (补肾活血颗粒) on Ferroptosis of Dopamine Neurons in Substantia Nigra of Subacute Parkinson's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(15):1463-1469.
LI Chen,WANG Peng,WANG Liang,et al.Effect of Bushen Huoxue Granule (补肾活血颗粒) on Ferroptosis of Dopamine Neurons in Substantia Nigra of Subacute Parkinson's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(15):1463-1469.DOI: 10.13288/j.11-2166/r.2022.15.012.
Effect of Bushen Huoxue Granule (补肾活血颗粒) on Ferroptosis of Dopamine Neurons in Substantia Nigra of Subacute Parkinson's Disease Model Mice
(补肾活血颗粒, BSHXG) on Parkinson's disease (PD) and the possible mechanism.
Methods
2
Thirty-six successful modeling subacute PD mice prepared by 7-day continuous intraperitoneal injection of 30 mg/(kg·d) 1-Methyl-4-phenyl-1,2,3,6tetrahydropyridine (MPTP) were randomly divided into model group, BSHXG group, Liproxstatin-1 (Lip-1) group with 12 mice in each group, and another 12 C57/BL6 mice were taken as blank group. The BSHXR group was given 3 g/(kg·d) BSHXG solution by gavage, while the Lip-1 group was administered with intraperitoneal injection of 10 mg/(kg·d) Lip-1 solution, and the blank and model group were given 10 ml/(kg·d) distilled water by gavage, once daily for two weeks. The behavioral performance of mice was detected by open field experiment and gait analysis, and the positive expression of tyrosine hydroxylase (TH) in substantia nigra was observed by immunohistochemistry. The contents of glutathione (GSH), 4-hydroxyisononenal (4-HNE) and ferric ion (Fe
2+
) in substantia nigra were assessed, and the protein and mRNA expressions of ferroptosis related factors solute including carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPX4) and acyl-CoA synthase long-chain family member 4 (ACSL4) were detected by Western-blot and RT -qPCR.
Results
2
Compared to those in the blank group, the total distance and ave-rage speed of mice in the model group decreased, and the resting time increased in the open field experiment; the gait analysis showed the step width in the model group increased, while the step length decreased, and the gait variation rate increased; the TH expression, the GSH content and the expression of SLC7A11 and GPX4 mRNA and protein decreased, while the contents of 4-HNE and Fe
2+
and expression of ACSl4 mRNA and protein increased (
P
<0.01). Compared to those in the model group, the total distance and average speed of mice in BSHXG group increased, while the resting time decreased significantly; the step width was shortened, while the step length increased, and the gait variation rate decreased; the TH positive expression, the GSH content and the mRNA and protein expression of SLC7A11 and GPX4 increased, while 4-HNE and Fe
2+
contents and ACSl4 mRNA and protein expression decreased (
P
<0.05 or
P
<0.01). Compared to the model group, the Lip-1 group increased the total distance, average speed and step length, increased the TH positive expression, GSH content and the SLC7A11 and GPX4 mRNA and protein expression, and decreased 4-HNE and Fe
2+
contents and ACSl4 mRNA and protein expression (
P
<0.05 or
P
<0.01). Compared to that in the BSHXG group, the expression of GPX4 mRNA in Lip-1 group increased (
P
<0.01), while there were no statistical significant differences in other outcomes between groups (
P
>0.05).
Conclusion
2
BSHXG in the treatment of PD may improve athletic ability by inhibiting ferroptosis of dopamine neurons and improving oxidative stress.
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