Exploration on the Effects of"Three Methods and Three Acupoints"on Motor Function in Sciatic Nerve Injury Rats Based on Skeletal Muscle α-Actin
10.19879/j.cnki.1005-5304.202405630
- VernacularTitle:以骨骼肌α-肌动蛋白为主探究"三法三穴"推拿对坐骨神经损伤大鼠运动功能的影响
- Author:
Jiayue LIU
1
;
Yingqi ZHANG
1
;
Tianyuan YU
1
;
Hanyu ZHANG
1
;
Jiawei SUN
1
;
Jinping CHEN
1
;
Zhenjie YANG
1
;
Chula SA
1
;
Runlong ZHANG
1
Author Information
1. 北京中医药大学针灸推拿学院,北京 102488
- Publication Type:Journal Article
- Keywords:
three methods and three acupoints;
sciatic nerve injury;
α-actin;
MSTN;
Atrogin1
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2025;32(2):99-104
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effects of tuina of"three methods and three acupoints"on skeletal muscle α-actin,myostatin(MSTN)and atrophy gene 1(Atrogin1)expression of sciatic nerve injury(SNI)rats;To explore the mechanism of tuina therapy on motor dysfunction.Methods Male SD rats were randomly divided into blank group,sham-operation group,model group and tuina group,with 9 rats in each group.SNI model was established by clamp method in rats of the model group and tuina group.The sciatic nerve was exposed without clamping in rats of the sham-operation group,the blank group was not intervened.7 days after the operation,the intelligent tuina manipulation simulator was used to simulate the point method,dial method and knead method,which were applied to the"Yinmen"(BL37),"Chengshan"(BL57)and"Yanglingquan"(GB34)of rats in the tuina group,once a day,for 20 times.The rats in the sham-operation group and the model group were only grasped and restrained.Rats in the blank group did not receive any intervention.The hind limb muscle strength were evaluated by inclined plate test before modeling,after 10 interventions and 20 interventions.After the intervention,the rats were euthanized.The expressions of α-actin in gastrocnemius muscle tissue were detected by immunofluorescence staining,the expressions of MSTN,Atrogin1 mRNA and protein in gastrocnemius muscle tissue were detected by RT-PCR and Western blot.Results Compared with the blank group and sham-operation group,the model group showed a decrease in hind limb muscle strength(P<0.01),a significant decrease in α-actin expression in gastrocnemius muscle tissue(P<0.01),and a significant increase in MSTN,Atrogen1 mRNA and protein expression(P<0.05,P<0.01).Compared with the model group,the hind limb muscle strength in tuina group significantly increased(P<0.01),the expressions of α-actin significantly increased(P<0.01),and the expressions of MSTN,Atrogin1 mRNA and protein significantly decreased(P<0.05,P<0.01).Conclusion"Three methods and three acupoints"tuina can improve hind limb muscle strength and restore motor function of SNI rats,which is related to the down-regulation of MSTN and Atrogin1 as well as increasing the expression of α-actin in gastrocnemius muscles.
