缺氧缺血性脑病患儿血浆细胞因子变化及临床意义

目的 研究缺氧缺血性脑病(HIE)患儿血浆IL-6、IL-8与TNF-α的动态变化及意义.方法 用放射免疫法测定40例HIE患儿(HIE组)生后1、3、7 d外周血IL-6、IL-8与TNF-α的变化,并与正常足月新生儿40例(对照组)比较.结果 与对照组比较,HIE组患儿在生后1、3d血浆IL-6明显降低分别为(52.3±24.5)ng/L比(80.1±28.6)ng/L和(56.9±28.5)ng/L比(78.6±28.9)ng/L],而IL-8与TNF-α明显升高分别为IL-8:(0.68±0.23)ng/L比(0.47±0.13)ng/L和(0.63±0.22)ng/L比(0.40±0.16)ng/L,TNF-α:(1.17±0.30)ng/L比(0.91±0.30)ng/L和(1.14±0.29)ng/L比(0.96±0.34)ng/L],P<0.01或<0.05.结论 IL-6、IL-8与TNF-α的异常变化可能参与了新生儿窒息后HIE的发病机制.

The changes of plasma levels of cytokines in patients of hypoxic-ischemic encephalopathy and its clinical significance

Objective To explore the role of cytokines on the pathogenesis of hypoxic-ischemic en-cephalopathy (HIE). Method The levels of peripheral blood interleukin (IL)-6, IL-8, tumor necrosis factor-alpha (TNF-α) in 40 HIE and 40 healthy neonates were detected at the 1st, 3rd and 7th day after birth by using radioimmunoassay. Results Compared with healthy neonates, at the 1 st, 3rd after birth, the level of peripheral blood IL-6 was decreased (52.3±24.5)ng/L vs (80.1±28.6)ng/L and (56.9±28.5) ng/L vs (78.6±28.9)ng/L, respoctively], but IL-15 and TNF-α were increased IL-8:(0.68±0.23)ng/L vs (0.47±0.13)ng/L and (0.63±0.22)ng/L vs (0.40±0.16)ng/L, TNF-α: (1.17±0.30)ng/L vs (0.91± 0.30) ng/L and (1.14±0.29)ng/L vs (0.96±0.34)ng/L]in HIE infants. Conclusion The changes of plas-ma levels of IL-6, IL-8 and TNF-α in neonatal HIE possibly play an important role in the pathophysiologic mechanisms of HIE.