Keywords Aged SD rats;cerebral ischemia reperfusion;cerebro-microvessel basement membrane;gelatinase system;plasminogen activator system;NMT;

• 老龄大鼠;脑缺血/再灌注;微血管基底膜;细胞外基质;明胶酶系统;纤溶酶原激活系统;脑脉通;