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Abstract Title:

[Effect of ginsenoside Rb1 on cerebral infarction volume and IL-1 beta in the brain tissue and sera of focal cerebral ischemia/reperfusion injury model rats].

Abstract Source:

Zhongguo Zhong Xi Yi Jie He Za Zhi. 2013 Dec ;33(12):1696-700. PMID: 24517072

Abstract Author(s):

Jun-Wei Liu, Ye-Long Ren, Xu-Ling Liu, Hong-Lian Xia, Hui-Ling Zhang, Shen-Hui Jin, Qin-Xue Dai, Jun-Lu Wang

Article Affiliation:

Jun-Wei Liu

Abstract:

OBJECTIVE: To investigate the effect of ginsenoside Rb1 on cerebral infarction volume as well as IL-1 beta in the brain tissue and sera of focal cerebral ischemia/reperfusion (I/R) injury model rats.

METHODS: The I/R rat model was established by using thread according to Zea-Longa. SD rats were randomly divided into five groups, i.e., the sham-operation group, the model group, the low dose ginsenoside Rb1 (20 mg/kg) group, the medium dose ginsenoside Rb1 group (40 mg/kg), and the high dose ginsenoside Rb1 group (80 mg/kg), 12 in each group. Rats in the sham-operation group only received middle cerebral artery occlusion (MCAO) but without thread insertion. The MCAO model was prepared in the rest 4 groups, followed by MCAO2 h later. Ginsenoside Rb1 at each dose was peritoneally administrated to rats in corresponding groups immediately after cerebral ischemia. Equal volume of normal saline was administered to rats in the sham-operation group. Rats' cerebral infarction volume, integrals of neurologic defect degree, expression of IL-1 beta content in the brain tissue and sera were observed 24 h after 2-h cerebral I/R.

RESULTS: In the model group, integrals of neurologic defect degree were improved (P<0.01), IL-1 beta positive cells in the brain tissue increased and serum IL-1 beta content elevated (P<0.05), when compared with the sham-operation group. In comparison of the model group, integrals of neurologic defect degree were lowered in the medium dose and high dose ginsenoside Rb1 groups (P<0.05, P<0.01). The cerebral infarction volume was all shrunken in each ginsenoside Rb1 group, IL-1 beta positive cells in the brain tissue decreased, and IL-1 beta content in serum reduced (P<0.01, P<0.05). Compared with the low dose ginsenoside Rb1 group, integrals of neurologic defect degree decreased, the cerebral infarction volume shrunken, and IL-1 beta content in serum reduced in the high dose ginsenoside Rb1 group (P<0.01, P<0.05).

CONCLUSION: Ginsenoside Rb1 (20, 40, 80 mg/kg) might effectively release local cerebral ischemia by down-regulating the IL-1 beta expression.

Study Type : Animal Study

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Sayer Ji
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