Abstract
Background and aimAstragalus membranaceus (AM) is a major Chinese herb used in the treatment of stroke. Astragaloside IV (AS)is a component of AM. This study investigated the effects of AM on the protein expression through proteomics analysis in ischemia-reperfusion injured Sprague Dawley rats. Experimental procedureAn animal model of ischemia-reperfusion injury by occlusion of the right middle cerebral artery for 90 min followed by reperfusion for 24 h. The rats were intraperitoneally injected with AM or AS three times at 30 min, 1 day, and 2 days prior to the occlusion of the cerebral blood flow. ResultsAldolase C was overexpressed in the cortex, and Dihydrolipoamide dehydrogenase and Triose-phosphate isomerase were overexpressed in the hippocampus. ConclusionPretreatment with AM or AS can induce the overexpression of Aldolase C in the cerebral cortex and that of Dihydrolipoamide dehydrogenase and Triose-phosphate isomerase in the hippocampus, suggesting that both AM and AS may act as neuroprotectors through regulating the expression of Aldolase C, Dihydrolipoamide dehydrogenase and Triose-phosphate isomerase. However, the underlying neuroprotective mechanisms need more studies.
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