Wen-ming ZHOU, Yi-feng LIN, Zhen ZHANG, et al. Effect of Bushen Zhuangdu Recipe on Mitochondrial Apoptotic Pathway in Degenerative Intervertebral Disc Cells in Rats[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(19): 25-31.
DOI:
Wen-ming ZHOU, Yi-feng LIN, Zhen ZHANG, et al. Effect of Bushen Zhuangdu Recipe on Mitochondrial Apoptotic Pathway in Degenerative Intervertebral Disc Cells in Rats[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(19): 25-31. DOI: 10.13422/j.cnki.syfjx.20191937.
Effect of Bushen Zhuangdu Recipe on Mitochondrial Apoptotic Pathway in Degenerative Intervertebral Disc Cells in Rats
To explore the mechanism of mitochondrial apoptotic pathway in rat degenerative intervertebral disc cells in improving intervertebral disc degeneration under the action of Bushen Zhuangdu recipe.
Method:
2
The 100 SD male rats were randomly divided into blank group
model group
low
medium and high dose Bushen Zhuangdu recipe group (0.38
0.77
1.53 g·kg
-1
). Histopathological changes of rat intervertebral discs were observed by hematoxylin-eosin(HE) staining after 4 weeks of continuous administration of Chinese medicine. The apoptotic rate of nucleus pulposus cells in degenerative intervertebral discs was detected by TUNEL(terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling)
and the levels of active Cysteinyl aspartate-specific proteinase-3(active Caspase-3)
B cell leukemia-2(Bcl-2)
cytochrome C (cytC) and Bcl-2-associated X protein(Bax) protein in intervertebral discs were detected by Western blot.
Result:
2
Compared with blank group
the histopathological score of intervertebral disc in the model group was significantly increased
the apoptosis rate of nucleus pulposus was significantly increased (
P
<
0.05)
the expression levels of active Caspase-3
cytC and Bax were significantly increased (
P
<
0.05)
and the expression levels of Bcl-2 were significantly decreased (
P
<
0.05). After the intervention of Bushen Zhuangdu recipe.Compared with model group
the histopathological score of Bushen Zhuangdu recipe low
medium and high dose groups were significantly reduced(
P
<
0.05)
the expression levels of active Caspase-3
cytC and Bax were significantly decreased (
P
<
0.05)
and the expression levels of Bcl-2 were significantly increased (
P
<
0.05).
Conclusion:
2
Bushen Zhuangdu recipe may improve the degeneration of intervertebral disc by reducing the expression of active Caspase-3
cytC and Bax
increasing the expression of Bcl-2 and inhibiting the apoptotic pathway of mitochondria in a dose-dependent manner.
关键词
Keywords
references
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