首页> 外文期刊>Gut: Journal of the British Society of Gastroenterology >Is iron over-rated? Sulphates may be the more important compound in development of colitis in rodent models, and perhaps humans.
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Is iron over-rated? Sulphates may be the more important compound in development of colitis in rodent models, and perhaps humans.

机译:铁被高估了吗?在啮齿动物模型甚至人类中,硫酸盐可能是结肠炎发展中更重要的化合物。

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Werner et al showed that oral iron sulphate supplementation resulted in the development of ileitis in a rodent model, while parenteral administration of the same compound did not.1 I submit that these observations, although valid, may be true and unrelated. The colono-toxic effects of the sulphur component of iron sulphate were first observed following the development of acute colitis in rodents treated with dextran sodium sulphate. Sulphide compounds appear to be the most toxic to isolated colonocytes. Sulphate-reducing bacteria found in the colon and terminal ileum produce hydrogen sulphide, which in turn is converted to anionic sulphide by colonic bicarbonate.
机译:Werner等人表明,在啮齿动物模型中口服硫酸铁补充剂会导致回肠炎的发展,而非肠道给予相同化合物的情况则没有。1我认为这些观察结果虽然有效,但可能是真实且无关的。在用右旋糖酐硫酸钠处理的啮齿动物中,急性结肠炎发生后,首先观察到了硫酸铁中硫成分的结肠毒性。硫化物化合物似乎对分离的结肠细胞毒性最大。在结肠和回肠末端发现的减少硫酸盐的细菌会产生硫化氢,然后通过结肠碳酸氢盐将其转化为阴离子硫化物。

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