Protective effects of resuscitation⁃inducing herbs on acute incomplete cerebral ischemia in rats
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(1. Guangzhou University of Chinese Medicine,Guangzhou 510405,China; 2. Zhuhai Brach of Guangdong Hospital of traditional Chinese Medicine, Zhuhai 510915; 3. The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405)

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R-33

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    Abstract:

    Objective Some research on the brain?protective effects of single?taste drugs has been performed, but there is a lack of research comparing them. The purpose of this research was thus to explore the protective effects and mechanism of action of the effective components of resuscitation?inducing herbs, namely, β?asarone, borneol, muscone, and Styrax naphtha, on acute incomplete cerebral ischemia model rats. Methods This model was established by temporarily ligaturing the common carotid arteries bilaterally. The changes of cerebral water content and SOD, MDA, GSH?Px, ET?1, and CGRP activities in the serum were determined, and brain tissue was used to detect Bcl?2 and Bax proteins. Results Compared with those in the model group, cerebral water content decreased significantly in the β?asarone borneol, and Styrax naphtha groups; serum content of SOD markedly increased in the borneol group; serum content of MDA markedly decreased in the muscone and Styrax naphtha groups; serum content of GSH?PX increased in all drug groups; serum content of ET?1 decreased in all drug groups; and serum content of CGRP increased in all drug groups compared with the levels in the sham?operated and model groups, although no significant differences were noted. The level of Bcl?2 protein in the brain tissues of each drug group increased, while that of Bax protein decreased, with the Bcl?2/ Bax ratio being higher than in the model group. Conclusions Resuscitation?inducing herbs can improve ischemia reperfusion brain injury as revealed by different measures. Borneol significantly reduced the cerebral water content. Styrax naphtha showed the strongest reduction of oxidative stress damage. Muscone clearly increased Bcl?2 and reduced Bax protein, which may prolong the process of apoptosis. β?asarone effect centered. Overall, the studied components have certain protective effects against cerebral ischemia injury. Active components of the four resuscitation?inducing herbs reduce the degree of cerebral edema caused by ischemia, oxidative stress injury, cerebral ischemic neuron injury, and inhibition of apoptosis, which may have protective effects against cerebral ischemia injury.

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History
  • Received:January 08,2018
  • Revised:
  • Adopted:
  • Online: September 17,2018
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