• Biomed Environ Sci · Apr 2006

    Protective effect of isoflurane and sevoflurane on ischemic neurons and expression of Bcl-2 and ICE genes in rat brain.

    • Shao-Dong Zhang, Jing Zhai, Hui Zhang, Hong Wan, and De-Zhi Li.
    • Biochemical Department, Beijing Neurosurgical Institute, Beijing 100050, China. zhang_shd@sina.com
    • Biomed Environ Sci. 2006 Apr 1;19(2):143-6.

    ObjectiveTo study the protective effect of volatile anesthetics, isoflurane and sevoflurane, on ischemic neurons after cerebral ischemia-reperfusion in rats and its possible molecular mechanism.MethodsRat cerebral ischemia-reperfusion model was developed by occlusion of the middle cerebral artery (MCA) and bilateral common carotid arteries (CCAs) 1 h after reperfusion. Using flow cytometry (FCM) and Northern blot hybridization, we calculated the number of apoptotic bodies and detected the expression of bcl-2 mRNA and interleukin-1beta converting enzyme (ICE) mRNA.ResultsThe apoptotic bodies in hippocampus analyzed by FCM peaked at appeared 24 h after reperfusion, and decreased about 54% and 40%, respectively, after treatment with isoflurane and sevoflurane, as compared with ischemic group. There was no significant difference in the expression of bcl-2 mRNA and ICE mRNA between the inhaled anesthetic groups and ischemic group in hippocampus 24 h after MCA/CCAs occlusion.ConclusionIsoflurane and sevoflurane partially inhibit apoptosis but have no significant effect on the expression of bcl-2 and ICE genes.

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