肿瘤坏死因子＿α(ＴＮＦ＿α)和白细胞介素＿６(ＩＬ＿６)可由中枢神经系统的星形细胞和胶质细胞产生 ,参与炎症反应和免疫应答 ,但其在中枢神经系统感染性疾病发病机制中的作用尚不十分确定。我们测定２５例病毒性脑炎及２８例细菌性脑膜炎脑脊液中ＴＮＦ＿α、ＩＬ＿６水平 Tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) are produced by the astrocytes and glial cells of the central nervous system and are involved in the inflammatory response and immune response, but their roles in the pathogenesis of central nervous system infectious diseases Not yet sure. We measured 25 cases of viral encephalitis and cerebrospinal fluid of 28 cases of bacterial meningitis TNF_α, IL_6 levels