PMID- 21328977 OWN - NLM STAT- MEDLINE DCOM- 20140123 LR - 20110217 IS - 1000-6834 (Print) IS - 1000-6834 (Linking) VI - 26 IP - 4 DP - 2010 Nov TI - [Study of the effects of Auricularia auricular polysaccharide on local ischemia/reperfusion injury in rat]. PG - 423-6 AB - OBJECTIVE: To investigate the influence of Auricularia Auricular polysaccharide (APP) on acute cerebral injury induced by ischemia/reperfusion in rats and its underlying mechanism. METHODS: Adult male SD rats were intragastrically pretreated with AAP at a low (50 mg/kg) or high (100 mg/kg) dose once a day for 20 days before operation. Rats intraperitoneally injected with ginkgo biloba extract (EGb671) were taken as positive control. Focal ischemia was achieved by middle cerebral artery occlusion (MCAO) on the right side for 60 min. After 24 hrs of reperfusion, the nerve function defects were recorded by Longa's score and the brain infarct sizes were measured by 2,3,5-Triphenyl-tetrazolium-chlor (TTC) staining. Apoptotic neurons were detected by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining after 48 h of reperfusion. The levels of oxidative stress was determined via the mitochondria-generated reactive oxygen species (ROS). RESULTS: AAP treatment decreased Longa's score, brain infarct size, apoptotic neurons and mitochondria-generated ROS in a dose-dependent manner. AAP at 100 mg/kg gave a better performance compared with EGb671 on all parameters examined. CONCLUSION: AAP treatment protected rat brain from focal ischemia/reperfusion injury by its anti-oxidative effect and worked better than EGb671. FAU - Ye, Ting-Mei AU - Ye TM AD - Department of Biology, College of Chemistry and Life Sciences, Lishui University, Lishui 323000, China. FAU - Sun, Li-Na AU - Sun LN FAU - Su, Fang AU - Su F FAU - Shen, Jia AU - Shen J FAU - Wang, Hui-Ping AU - Wang HP FAU - Ye, Zhi-Guo AU - Ye ZG FAU - Xia, Qiang AU - Xia Q LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhongguo Ying Yong Sheng Li Xue Za Zhi JT - Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology JID - 9426407 RN - 0 (Polysaccharides) RN - 0 (Reactive Oxygen Species) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Basidiomycota/*chemistry MH - Brain Ischemia/*metabolism/pathology MH - Infarction, Middle Cerebral Artery/metabolism/pathology MH - Male MH - Oxidative Stress/drug effects MH - Polysaccharides/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species/metabolism MH - Reperfusion Injury/*metabolism/pathology EDAT- 2011/02/19 06:00 MHDA- 2014/01/24 06:00 CRDT- 2011/02/19 06:00 PHST- 2011/02/19 06:00 [entrez] PHST- 2011/02/19 06:00 [pubmed] PHST- 2014/01/24 06:00 [medline] PST - ppublish SO - Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2010 Nov;26(4):423-6.