氣管內(nèi)霧化脂多糖致大鼠肺部炎癥損傷模型研究
[Abstract]:Objective to establish a model of lung inflammation injury induced by lipopolysaccharide (LPS) in rat trachea. Methods Rats were given intratracheal atomization of 200 渭 L LPS solution with high, middle and low doses of 155U 0.5 mg kg ~ (-1), respectively. The bronchoalveolar lavage fluid (bronchoalveolar lavage fluido BALF) was analyzed 24 hours after single administration, and histopathological examination (kidney and lung) was performed. Trachea) and blood biochemical tests (creatinine, albumin, Na / K / Cl -). Results different levels of leukocytes, neutrophils and macrophages were found in BALF cell classification. The activity of alkaline phosphatase and the content of total protein in the high dose group were increased in a dose-dependent manner compared with the control group (P0.05), and there was a significant difference between the two groups. Histopathological examination: there were slight perivascular edema in control group and inflammatory cell exudation with foam macrophage aggregation and moderate periwall edema in LPS group. Conclusion different doses of LPS can induce different degree of lung inflammation injury in rat trachea. The atomization of LPS in trachea can be used as a reliable method to establish pulmonary inflammatory injury model.
【作者單位】: 復(fù)旦大學(xué);中國(guó)醫(yī)藥工業(yè)研究院;上海市食品藥品檢驗(yàn)所;
【分類號(hào)】:R965
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