黄芩甙,地塞米松对大鼠感染性脑水肿细胞因子的影响

目的：探讨黄芩甙、地塞米松对大鼠感染性脑水肿白细胞介素－１（ＩＬ－１β）、肿瘤坏死因子α（ＴＮＦ－α）的影响。方法：应用大鼠感染性脑水肿模型，采用干湿法、原子吸收分光光度法、ＥＬＩＳＡ测定各组脑组织水含量、钠离子含量及脑匀浆上清液中ＩＬ－β，ＴＮＦ－α水平的变化；在光镜下观察各组脑组织的细胞形态学改变。结果：在大鼠感染性脑水肿（感脑）组脑水含量、钠离子、ＩＬ－１β、ＴＮＦ－α含量均比生理盐水（对照

Effect of baicalin and dexamethasone on cytokines in brain tissue of infectious brain edema]

OBJECTIVE: To explore the effect of baicalin(BC) and dexamethasone(DXM) on interleukin-1 beta (IL-1 beta) and tumor necrosis factor alpha(TNF-alpha) in brain tissues of infectious brain edema. METHODS: The infectious brain edema model induced by pertussis bacilli(PB) was used. Brain water content(WC), content of Na+ and the levels of IL-1 beta, TNF-alpha were determined, and the morphological changes were observed under the light microscope. RESULTS: The results showed that the levels of WC, Na+, IL-1 beta and TNF-alpha in group PB were higher than those in group of normal saline(NS) (P < 0.01). And they were lower in groups BC and DXM than those in group PB(P < 0.05). In groups BC and DXM, there were no significant difference in the contents of water, Na+, IL-1 beta and TNF-alpha(P > 0.05). The water contents were positive linar correlated with IL-1 beta or TNF-alpha(P > 0.05). The water contents were positive linear correlated with IL-1 beta or TNF-alpha contents(r = 0.9381, 0.8349, P < 0.01). The structure of brain tissues in group NS was normal. In group PB, there were severe edema in brain tissues. In groups BC and DXM, the edema of brain tissues was reduced. CONCLUSIONS: The results suggest that the protective effect of BC and DXM against infectious brain edema were similar, the mechanism may be associated with the reduction of TNF-alpha and IL-1 beta.