But levels of friendly bacteria in the gut drop significantly after 55, particularly in the large intestine, says Tom MacDonald, professor of immunology at BartsAnd the London medical school.

但是55岁后肠道，尤其在大肠中的益生菌含量明显下降，免疫学教授Tom MacDonald介绍说。

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These, however, have been exposed to the digestive mercies of bacteria in the large intestine, and any residual goodies have been removed from them that way.

然而这些是被暴露到大肠消化道寄生细菌产生的结果，并且任何剩余糖分都是通过这种方式被移除的。

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I was hospitalized for six weeks in 1984 with an acute case of ulcerative colitis, an autoimmune disease that attacks the large intestine.

我曾经在1984年因为免疫疾病引起病毒感染大肠而造成的严重的溃烂性结肠炎而入院治疗了六个星期。

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Based on these findings, we propose a model whereby deficiencies in disaccharidases and hexose transporters alter the milieu of carbohydrates in the distal small intestine (ileum) and proximal large intestine (cecum), resulting in the supply of additional growth substrates for bacteria.

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Colorectal cancer affects the colon (the large intestine) or the rectum.

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These, however, have been exposed to the digestive mercies of bacteria in the large intestine, and any residual goodies have been removed from them that way.

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