Nestin activation after rat cerebral ischemia-reperfusion injury and its changes in response to Tongxinluo treatment.
- Author:
Rui-xue YIN
1
;
Bing-xun LU
;
Li-xin WANG
;
Jian-zhong FAN
;
Chang-jun LU
;
Yi-xing LIU
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Cell Proliferation; drug effects; Drugs, Chinese Herbal; therapeutic use; Immunohistochemistry; Infarction, Middle Cerebral Artery; drug therapy; metabolism; Intermediate Filament Proteins; metabolism; Male; Nerve Tissue Proteins; metabolism; Nestin; Neurons; cytology; drug effects; metabolism; Phytotherapy; Random Allocation; Rats; Rats, Sprague-Dawley; Reperfusion Injury; drug therapy; metabolism; Stem Cells; cytology; drug effects; metabolism; Time Factors
- From: Journal of Southern Medical University 2006;26(6):777-779
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate nestin activation in rat brain subjected to ischemia-reperfusion injury and its changes in response to Tongxinluo treatment.
METHODSCerebral ischemia was induced by temporary middle cerebral artery occlusion (MCAO) in rats. At 3, 7, 14 and 21 days after MCAO, nestin expression in the ependyma, subventricular zone (SVZ), hippocampal subdentate gyrus zone (HDG) of the rats treated with Tongxinluo were guantified by immunohistochemistry.
RESULTSCompared with the sham operation group, nestin was significantly increased 7, 14 and 21 days after MCAO (P<0.05), and immunofluorescence of BrdU+nestin-positive neurons significantly increased in the SVZ. After treatment with Tongxinluo, the number of BrdU-positive neurons and BrdU+nestin-positive neurons significantly increased as compared with MCAO group (P<0.05).
CONCLUSIONFocal cerebral ischemia in the rat results in rapid response and proliferation of neural stem cells in the SVZ and HDG in the ischemic hemisphere, and Tongxinluo may enhance the differentiation and proliferation capacity of the neural stem cells after MCAO.
