Effect of Bushen Yisui Formula (补肾益髓方) on the Expression of NLRP3 Inflammasome Activation-related Protein in the Brain Tissue in Parkinson's Disease Model Mice
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Effect of Bushen Yisui Formula (补肾益髓方) on the Expression of NLRP3 Inflammasome Activation-related Protein in the Brain Tissue in Parkinson's Disease Model Mice
Journal of Traditional Chinese MedicineVol. 64, Issue 1, Pages: 71-76(2023)
ZHANG Xinning,CHEN Zhigang,CHEN Lu,et al.Effect of Bushen Yisui Formula (补肾益髓方) on the Expression of NLRP3 Inflammasome Activation-related Protein in the Brain Tissue in Parkinson's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2023,64(01):71-76.
ZHANG Xinning,CHEN Zhigang,CHEN Lu,et al.Effect of Bushen Yisui Formula (补肾益髓方) on the Expression of NLRP3 Inflammasome Activation-related Protein in the Brain Tissue in Parkinson's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2023,64(01):71-76.DOI: 10.13288/j.11-2166/r.2023.01.013.
Effect of Bushen Yisui Formula (补肾益髓方) on the Expression of NLRP3 Inflammasome Activation-related Protein in the Brain Tissue in Parkinson's Disease Model Mice
(补肾益髓方, BYF) on motor symptoms of Parkinson's disease (PD) model mice, and to explore its possible mechanism.
Methods
2
Ten out of 34 C57BL/6J mice were randomly selected as the normal group, and the remaining 24 mice were injected intraperitoneally with 30 mg/(kg·d) of MPTP solution for 5 consecutive days to make the PD model. Then, the 24 successfully modeled mice were randomly divided into model group and BYF group with 12 mice in each group. The mice in the BYF group was given intragastric administration of 0.1 ml/10 g of BYF granules solution at concentration of 0.22 g/ml, and those in the normal group and model group were given equal amount of normal saline by intragastric administration, once a day for 14 consecutive days. The rotarod performance test was performed for behavioral evaluation. The pathological morphology of the substantia nigra striatum was observed through Nisch staining, and the expression of tyrosine hydroxylase (TH) positive cells in the substantia nigra striatum was detected by immunohistochemistry. The expression of NOD-like receptor thermoprotein domain-associated protein 3 (NLRP3) inflammasome activation-related proteins, including NLRP3, cysteinyl aspartate specific proteinase-1 (Caspase-1), apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α), were detected by western blotting.
Results
2
Compared to those in the normal group, the residence time on the rotating rod in the model group was significantly shortened, and the expression of TH-positive cells in midbrain substantia nigra striatum was reduced, while the expressions of IL-1β, TNF-α, NLRP3, ASC and Caspase-1 in brain tissue increased (
P
<0.01). Nishi staining showed that the neurons in the substantia nigra striatum area of mice in the model group were reduced, atrophy and disordered, with smaller cell body and reduced Nishi body than those in the normal group. Compared to those in the model group, the residence time on the rotating rod in BYF group was prolonged, and the expression of TH-positive cells in the substania nigra striatum increased, while the expressions of IL-1β, TNF-α, NLRP3, ASC and Caspase-1 in brain tissue decreased (
P
<0.05). The results of Nishi staining showed that the structure of most neurons in the substantia nigra striatum area of the BYF group was complete, and the nucleolysis and rupture were reduced, with increased number of Nishi bodies than those in the model group.
Conclusion
2
BYF can improve the motor symptoms of PD, and its mechanism may be related to the regulation of NLRP3 inflammasome mediated pyroptosis.
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references
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