早产儿肠道菌群特征与临床思考

• 作 者: 武庆斌
• 机 构: 苏州大学附属儿童医院消化科,
• 出 处: 中国新生儿科杂志
• 发表日期: 2015年03期
• 关键词: 早产儿 胃肠道 菌群特征 微生态学 人体内 泌尿生殖道 相互关系 微生物群 生命科学 呼吸道 细菌 体表 宿主 腔道 口腔

一、人体微生态学概述人体微生态学(Human Microecology)是一门研究人体内正常微生物群与其宿主相互关系的生命科学。在人体与外界相通的腔道,如胃肠道、口腔、泌尿生殖道、呼吸道和体表寄居着大约100万亿、1 000~1 500余种细菌[1]。这些正常微生物菌群与宿主处于共生状态,已经成为机体不可分割的一个组成部分,甚至有人将其作为人体一个特殊生理器官。其中,肠道中定植的细菌约占人体总微生物量

I. Introduction to Human Microecology Human Microecology is a life science that studies the interrelationship between the normal microflora and its host in the human body. About 100 trillion and 1 000 to 1 500 bacteria are colonized in the human body’s channels connected with the outside world, such as the gastrointestinal tract, oral cavity, genitourinary tract, respiratory tract and body surface [1]. These normal microbial flora and host in a symbiotic state, has become an integral part of the body, and even some as a human body as a special physiological organ. Among them, colonized bacteria in the intestine accounted for about the total microbial biomass