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目的探讨局部脑缺血再灌流后脑微血管内皮细胞表面表达的ＩＣＡＭ１参与的缺血性炎症反应。方法用免疫组织化学的方法观察大鼠左侧大脑中动脉栓堵２小时再灌流０、３、１２、２４、７２、１２０小时脑微血管内皮细胞ＩＣＡＭ１的表达。结果大鼠左侧大脑中动脉栓堵２小时未见ＩＣＡＭ１的表达，栓堵２小时再灌流３小时病变侧脑组织微血管内皮细胞开始出现ＩＣＡＭ１的表达，１２～２４小时达高峰，并持续至７２小时，非缺血侧脑组织微血管未见ＩＣＡＭ１的表达。结论ＩＣＡＭ１参与了缺血性脑损伤早期的病理过程。提示在缺血早期阻断ＩＣＡＭ１的表达可能有助于减轻缺血性脑损害的程度。
Objective To investigate the ischemic inflammatory response of ICAM1 expressed on the surface of cerebral microvascular endothelial cells after focal cerebral ischemia-reperfusion. Methods Immunohistochemical method was used to observe the expression of ICAM-1 in the brain microvascular endothelial cells at 0, 3, 12, 24, 72 and 120 hours after reperfusion for 2 hours in the left middle cerebral artery occlusion rats. The results of the left middle cerebral artery occlusion in rats 2 hours without blocking the expression of I CAM 1, blocking plug 2 hours and then perfusion for 3 hours on the lesion side of brain microvascular endothelial cells began to appear ICAM 1, 12 to 24 hours up Peak, and continued to 72 hours, non-ischemic brain tissue microvascular no ICAM 1 expression. Conclusion ICAM 1 involved in the early pathological process of ischemic brain injury. Tip early in the ischemic block ICAM 1 expression may help reduce the extent of ischemic brain damage.