Effect of Modified Huangqi Guizhi Wuwutang on Apoptosis-related Bax and Caspase-12 of Sciatic Nerve Cells in Diabetes Rats
10.13422/j.cnki.syfjx.20231328
- VernacularTitle:黄芪桂枝五物汤加减对糖尿病大鼠坐骨神经细胞凋亡相关Bax和Caspase-12的影响
- Author:
Yan ZHANG
1
;
Hongzhu LONG
2
;
Xipeng WANG
3
;
Weifang CAO
4
;
Lili WU
5
;
Tonghua LIU
5
;
Jingxin ZHOU
6
Author Information
1. Beijing Friendship Hospital Affiliated to Capital Medical University， Beijing 100050， China
2. The Second Department of Pulmonary Diseases of China-Japan Friendship Hospital， Beijing 100029， China
3. Hospital of Beijing International Studies University， Beijing 100024， China
4. Institute of Basic Medical Sciences， Chinese Academy of Medical Sciences， Beijing 100007， China
5. School of Traditional Chinese Medicine， Beijing University of Chinese Medicine， Beijing 100029， China
6. Dongzhimen Hospital， Beijing University of Chinese Medicine， Beijing 100700， China
- Publication Type:Journal Article
- Keywords:
modified Huangqi Guizhi Wuwutang;
peripheral neuropathy in diabetes;
cell apoptosis;
B-cell lymphoma-2 associated X protein;
cysteinyl aspartate specific proteinase-12
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2023;29(16):58-64
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the effect of modified Huangqi Guizhi Wuwutang （MHGW） on the protein and mRNA expression of B-cell lymphoma-2-associated X protein （Bax） and cysteinyl aspartate specific proteinase-12 （Caspase-12） related to the apoptosis of sciatic nerve cells in diabetes rats to explore the mechanism of MHGW in the treatment of peripheral neuropathy in diabetes. MethodAnimal experiments were conducted. A diabetes model was induced in sixty male sprague-dawley （SD） rats by feeding on a high-sugar and high-fat diet combined with streptozotocin （STZ） intraperitoneal injection. Rats with random blood glucose levels ≥ 16.7 mmol·L-1 for three consecutive days were considered to have successfully developed diabetes. Forty-eight rats that successfully developed diabetes were randomly divided into a model group， an α-lipoic acid group （0.026 8 g·kg-1·d-1）， a high-dose MHGW group （2.5 g·kg-1·d-1）， and a low-dose MHGW group （1.25 g·kg-1·d-1）， with 12 rats in each group. Another 10 rats were assigned to the normal group. Body weight and random blood glucose levels of the rats were monitored. At the end of a 16-week intervention period， the sciatic nerve conduction velocity of the rats was measured using the Key point electromyography collection system. The protein and mRNA expression of Bax and Caspase-12 in the sciatic nerve cells was detected by Western blot analysis and real-time quantitative polymerase chain reaction （Real-time PCR）， respectively. ResultCompared with the normal group， the model group showed a significant decrease in body weight （P<0.01） and a significant increase in random blood glucose levels （P<0.01）. After a 16-week intervention， compared with the model group， the high-dose MHGW group exhibited a significant increase in body weight （P<0.05）， while there were no statistically significant differences in body weight changes among the other treatment groups. Random blood glucose levels significantly decreased in all treatment groups （P<0.01）. After 16 weeks of intervention， compared with the normal group， the model group had significantly reduced motor and sensory nerve conduction velocities （P<0.01）. Compared with the model group， all treatment groups showed significant increases in motor and sensory nerve conduction velocities （P<0.05， P<0.01）. The expression of Bax and Caspase-12 proteins in the sciatic nerve cells was significantly elevated in the model group compared with that in the normal group （P<0.01）. In contrast， all treatment groups showed significant reductions in the expression of Bax and Caspase-12 proteins in the sciatic nerve cells as compared with that in the model group （P<0.01）. The expression of Bax and Caspase-12 mRNA in the sciatic nerve cells significantly increased in the model group compared with that in the normal group （P<0.01）. Compared with the model group， the α-lipoic acid group and the high-dose MHGW group showed significant reductions in the expression of Bax mRNA in the sciatic nerve cells （P<0.05， P<0.01）， while the low-dose MHGW group showed a decreasing trend in the expression of Bax mRNA. The expression of Caspase-12 mRNA in the sciatic nerve cells significantly decreased in all treatment groups （P<0.01）. ConclusionMHGW may improve and repair sciatic nerve damage in diabetes rats by inhibiting sciatic nerve cell apoptosis.
