肠道微生物群在健康和疾病中的作用

Role of intestinal microflora in health and disease

肠道微生物群不仅仅在微生物学，在医学上也进入研究的重点。这些微生物能在长时间内保持自身的稳定性，其稳定性对人类健康和疾病发挥着至关重要的作用。近年来的报道显示微生物群的不平衡与多种疾病相关。肠道菌群失调导致的某些感染性肠道疾病像是克罗恩病等，这些在预期之中。但有趣的是微生物群或一个特定菌株与越来越多的像糖尿病，非酒精性脂肪肝，甚至精神疾病如抑郁症或自闭症这样的疾病有关。本文从健康和疾病两个方面对肠道微生物与人体的相关性进行阐述。

Intestinal microflora is not only in microbiology, but also in the study of medicine. These microor- ganisms can maintain their stability for a long time,and their stability plays a vital role in human health and disease. Recent reports have shown that the imbalance in microbial populations is associated with a variety of diseases. Some infectious intestinal diseases, such as Crohn~ disease, are expected to be caused by intestinal flora disorders. But it is interesting that microbial groups or a particular strain are associated with an increasing number of diseases such as diabetes, nonalcoholic fatty liver disease, and even psychiatric disorders such as depression or autism. In this paper, the relationship between intestinal microorganism and human body was expounded from two aspects of health and disease.