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1.广西中医药大学,南宁 530200
2.广西中医药大学 广西中医基础研究重点实验室,南宁 530200
陈嫒,在读硕士,从事证候生物学基础及方证研究,Tel:0771-4733794,E-mail:3159083397@qq.com
李晓红,博士,教授,硕士生导师,从事证候生物学基础及方证研究,Tel:0771-4733794,E-mail:lsyuan2008@126.com; *
杨力强,博士,教授,博士生导师,从事方剂配伍规律及方证研究,Tel:0771-4733794,E-mail:ylq6606@163.com
收稿日期:2022-04-25,
网络出版日期:2022-06-30,
纸质出版日期:2022-11-20
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陈嫒,郑于林,王芳等.基于RhoA/ROCK信号通路探讨逍遥散对肝郁脾虚证大鼠胃肠动力的影响[J].中国实验方剂学杂志,2022,28(22):1-6.
CHEN Ai,ZHENG Yulin,WANG Fang,et al.Effect of Xiaoyaosan on Gastrointestinal Motility in Rats with Liver Depression and Spleen Deficiency Syndrome Based on RhoA/ROCK Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(22):1-6.
陈嫒,郑于林,王芳等.基于RhoA/ROCK信号通路探讨逍遥散对肝郁脾虚证大鼠胃肠动力的影响[J].中国实验方剂学杂志,2022,28(22):1-6. DOI: 10.13422/j.cnki.syfjx.20221401.
CHEN Ai,ZHENG Yulin,WANG Fang,et al.Effect of Xiaoyaosan on Gastrointestinal Motility in Rats with Liver Depression and Spleen Deficiency Syndrome Based on RhoA/ROCK Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(22):1-6. DOI: 10.13422/j.cnki.syfjx.20221401.
目的
2
通过观察逍遥散对肝郁脾虚证大鼠胃组织RAS同源基因家族成员A(RhoA)和Rho相关螺旋卷曲蛋白激酶(ROCK)1、ROCK2表达的影响,探讨其调节肝郁脾虚证大鼠胃肠动力的作用机制。
方法
2
72只SD雄性大鼠随机分为6组,分别为正常组、模型组、氟西汀组(0.001 8 g·kg
-1
)、逍遥散高(16.7 g·kg
-1
)、中(8.35 g·kg
-1
)、低(4.175 g·kg
-1
)剂量组,每组12只。除正常组外,其余各组大鼠采用慢性束缚应激方法造模,造模同时正常组和模型组大鼠给予10 mL·kg
-1
生理盐水灌胃,各药物组大鼠给予相应剂量的药物灌胃,每日1次,共21 d。造模结束后,测定各组大鼠胃排空率、小肠推进率;实时荧光定量聚合酶链式反应(Real-time PCR)和蛋白免疫印迹法(Western blot)检测胃组织RhoA、ROCK1、ROCK2 mRNA和蛋白表达。
结果
2
与正常组比较,模型组大鼠胃排空率、小肠推进率及胃组织RhoA、ROCK1、ROCK2 mRNA和蛋白表达水平明显降低(
P
<
0.05,
P
<
0.01);与模型组比较,逍遥散高、中、低剂量组明显升高大鼠胃排空率、小肠推进率及胃组织RhoA、ROCK1、ROCK2 mRNA和蛋白表达水平(
P
<
0.05,
P
<
0.01)。
结论
2
逍遥散对肝郁脾虚证大鼠胃肠动力的改善可能与上调胃组织RhoA/ROCK信号通路的活性有关。
Objective
2
To observe the effect of Xiaoyaosan on the expression of RAS homologous gene family member A (RhoA) and Rho-related coiled protein kinase 1 and 2 (ROCK1 and ROCK2) in gastric tissues of rats with liver depression and spleen deficiency syndrome and to explore its mechanism of regulating gastrointestinal motility in rats with liver depression and spleen deficiency syndrome.
Method
2
Seventy-two male SD rats were randomly divided into 6 group, namely the normal group, the model group, the fluoxetine group (0.001 8 g·kg
-1
), the Xiaoyaosan high (16.7 g·kg
-1
), medium (8.35 g·kg
-1
) and low-dose (4.175 g·kg
-1
) group, with 12 rats in each group. In addition to the normal group, the rats in other groups were used to establish the model of liver depression and spleen deficiency syndrome by chronic restraint stress. At the same time, the rats in the normal group and the model group were given normal saline (10 mL·kg
-1
), and the rats in each drug group were given corresponding doses of drugs once a day for 21 d. After modeling, the gastric emptying rate and intestinal propulsion rate of rats in each group were measured. The mRNA and protein expressions of RhoA, ROCK1, and ROCK2 in gastric tissues were detected by Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot.
Result
2
As compared with the normal group, the gastric emptying rate, intestinal propulsion rate, and the mRNA and protein expressions of RhoA, ROCK1, and ROCK2 in gastric tissues in the model group were lower (
P
<
0.05,
P
<
0.01). The abnormal changes in the above indexes in the Xiaoyaosan high, medium, and low-dose groups were all improved in varying degrees as compared with the model group (
P
<
0.05,
P
<
0.01).
Conclusion
2
Xiaoyaosan improves gastrointestinal motility in rats with liver depression and spleen deficiency syndrome, which may be related to the up-regulation of the RhoA/ROCK signal pathway in gastric tissues.
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