Protective effect of Ligustrazini on gut barrier function / 中国病理生理杂志

ABSTRACT

AIM: To study the protective effect of Ligustrazini(LGT) on gut barrier function after hemorrhagic shock-reperfusion. METHODS: Thirty white rabbits were divided randomly into 3 groups control group (A),shock group (B) and LGT group (C). Malondialdehyde(MDA), tumor necrosis factor-?(TNF ?), interleukin-1?(IL-1?) and nitric oxide products(NO - 2/NO - 3) contents were measured in intestinal mucosa at 3 hours following reperfusion,culture of bacteria in blood from rabbits of 3 groups was carried out,the intestinal mucosa was examined under optical and electron microscope. RESULTS: MDA, TNF ?, IL-1? and NO - 2/NO - 3 contents of intestinal mucosa remained unchanged in group C,but increased significantly in group B, compared with group A. Incidence of bacterial translocation in group B was markedly higher than that in group A at 30 min following reperfusion,there was not any difference between group A and group C. Under light and electronic microscope,in comparison with A and C groups,intestinal mucosa damage in B group became more severe. CONCLUSION: LGT can protect gut barrier from intestinal ischemia-reperfusion injury induced by hemorrhagic shock through reducing oxygen free radicals,raising nitric oxide and preventing inflammation.