期刊
JOURNAL OF NEUROSURGERY
卷 101, 期 5, 页码 813-821出版社
AMER ASSOC NEUROLOGICAL SURGEONS
DOI: 10.3171/jns.2004.101.5.0813
关键词
traumatic brain injury; atorvastatin; vascular injury; spatial memory; rat
资金
- NINDS NIH HHS [R01 NS40225] Funding Source: Medline
- PHS HHS [P01 42345] Funding Source: Medline
Object. Atorvastatin, a beta-hydroxy-beta-methylglutaryl coenzyme A reductase inhibitor, has pleiotropic effects, such as promoting angiogenesis, increasing fibrinolysis, and reducing inflammatory responses, and has shown promise in enhancing recovery in animals with traumatic brain injury (TBI) and stroke. The authors tested the effect of atorvastatin on vascular changes after TBI. Methods. Male Wistar rats subjected to controlled cortical impact injury were perfused at different time points with fluorescein isothiocyanate (FITC)-conjugated dextran 1 minute before being killed. Spatial memory function had been measured using a Morris Water Maze test at various points before and after TBI. The temporal profile of intravascular thrombosis and vascular changes was measured on brain tissue sections by using a microcomputer imaging device and a laser confocal microscopy. The study revealed the following results. 1) Vessels in the lesion boundary zone and hippocampal CA3 region showed a variety of damage, morphological alterations, reduced perfusion, and intraluminal microthrombin formation. 2) Atorvastatin enhanced FITC-dextran perfusion of vessels and reduced intravascular coagulation. 3) Atorvastatin promoted the restoration of spatial memory function. Conclusions. These results indicated that atorvastatin warrants investigation as a potential therapeutic drug for TBI.
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