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首页> 外文期刊>Life sciences >Disturbances in epithelial ionic secretion in different experimental models of colitis.
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Disturbances in epithelial ionic secretion in different experimental models of colitis.

机译:结肠炎的不同实验模型中上皮离子分泌的紊乱。

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This paper studies the disturbances in ionic secretion in the colon of rats with different models of acute and chronic colitis measured as changes in short-circuit current. The aim was to verify whether the reported inhibition of basal and stimulated secretion in the trinitrobenzene sulfonic acid and mytomicin C models are applicable to experimental colitis as such. All models showed remarkable similarity in ion transport as determined in Ussing chambers, with downregulated basal as well as carbachol evoked secretion. The EC(50) of carbachol was unchanged in all cases. Iodoacetamide and oxazolone colitis models were notable exceptions in that the dose response curves for carbachol were unaltered compared to controls. The reason is unclear but seems to be unrelated to either interferon gamma or interleukin 4 levels or to the severity of the inflammatory response.
机译:本文研究了不同模型的急慢性结肠炎大鼠结肠中离子分泌的紊乱,以短路电流的变化来衡量。目的是验证在三硝基苯磺酸和mytomicin C模型中报道的对基础分泌和刺激分泌的抑制是否适用于实验性结肠炎。所有模型均显示出在Usssing室中确定的离子转运方面的显着相似性,同时基底和碳酰胆碱的分泌被下调。在所有情况下,卡巴胆碱的EC(50)均未改变。碘乙酰胺和恶唑酮结肠炎模型是值得注意的例外,因为与对照组相比,卡巴胆碱的剂量反应曲线未改变。原因尚不清楚,但似乎与干扰素γ或白介素4水平或炎症反应的严重程度无关。

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