Methods: The enzymatic activities of MMP-2 and MMP-9 were detected by gelatin zymography in 50 cases of human brain gliomas and 4 cases of normal human brian tissues. Immunohistochemical study was used for MMP2 and MMP-9 expression in all cases.

• 方法:采用明胶酶谱与免疫组化方法对50例人脑胶质瘤和4例正常脑组织中的MMP-2及MMP-9进行检测。