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肠道细菌种类繁多,在正常情况下,肠道微生物群之间、肠道微生物群与宿主之间始终处于一个动态的生态平衡状态。如果这种平衡被打破,那么肠道微生物群将会导致疾病的产生。肠道微生物群通过免疫、神经内分泌和生化等途径影响人类的中枢神经系统。目前发现肠道微生物群与抑郁症、肝性脑病等一些神经系统疾病存在联系。
A wide range of intestinal bacteria, under normal circumstances, between the intestinal microflora, gut microbiota and the host has always been in a dynamic ecological balance. If this balance is broken, gut microbiota will lead to disease. Gut microbiota affects the central nervous system of humans through immune, neuroendocrine, and biochemical pathways. Currently found that intestinal microflora and depression, hepatic encephalopathy and some other nervous system diseases are linked.