英语科普小知识 肠道细菌种类影响婴儿成长

英语科普小知识 肠道细菌种类影响婴儿成长 海量资料下载 免费学习英语 www.englishvip.com/xinlw.htm (申请网址) The composition of gut microbiota in a newborn baby's gut has been linked to the rate of early infant growth, reports research published this week in PLOS Computational Biology. The findings support the assertion that the early development of "microbiota" -- the body's microbial ecosystem -- in an infant can influence growth and thereby the likelihood of obesity. The sterile(无菌的) gut of a new-born baby is quickly populated by a variety of different microbes. This study identified connections between different bacteria and both expected and reduced infant growth rates. The study, set up at the Norwegian Institute of Public Health, by Principal Investigator Merete Eggesbo took data from infants when they were 4, 10, 30 and 120 days old. By looking at faecal samples from 218 babies, the statisticians Richard White and Shyamal Peddada developed a method aimed to identify the points and periods in time where the detection of specific bacterial groups was associated with an infant's development. Their study showed that the detection of Bacteroides species at day 30 in males was significantly associated with reduced growth. In contrast the presence of E. coli species from four to 30 days after birth was observed to correspond with expected growth in both male and female infants. The authors mapped part of infant gut microbiota using broad and unspecific probes only, thus the observed associations may be markers for other alterations in the gut microbiota composition. It is also possible that other factors early in life could give rise to such associations and the study may not have been large enough to adequately control for this. However, they believe their method can prove a useful tool for studying this intriguing(有 趣的) topic further. The authors comment: "We have created a new way of looking at the development of gut microbiota over time and relating this development to health outcomes. This is useful to the scientific community as it is difficult to characterise, in a meaningful way, how the gut develops over time. After applying our new method, we found an indication that the composition of early life gut microbiota may be associated with how fast or slow babies grow in early life although there is also the possibility that factors early in life affect both gut microbiota and how fast the baby grows" Knowledge of how the optimal composition of gut microbiota develops over time is aprerequisite(先决条件) for any successful manipulation of gut microbiota. 婴儿早期生长率一直挂在一个新生婴儿的肠道肠道菌群的组成，研究报告发表在本周的PLoS计算生物 学。研究结果支持这一断言，“微生物” -人体的微生物生态系统-在婴儿的早期发展影响经济增长，从而 肥胖症的可能性。无菌(无菌的)一个新出生的婴儿的肠道内被迅速填充了各种不同的微生物。这项研 究确定了不同的细菌和预期减少婴儿增长率之间的连接。 洛基国际英语 竭诚为您服务 海量资料下载 免费学习英语 www.englishvip.com/xinlw.htm (申请网址) ，首席研究员莫雷特Eggesbo在挪威公共卫生研究所的研究，建立了数据从婴儿时，他们4，10，30和120天的时候。在218名婴儿的粪便样本，统计学家理查德怀特和Shyamal Peddada的开发出一种，旨在找出点和周期时间检测婴儿的发展是与特定的细菌群体。 他们的研究表明，男性在30天杆菌物种的检测显着降低经济增长相关。相比之下，种大肠杆菌的存在，从出生后的4至30天观察，以符合预期的增长，男性和女性的婴儿。 婴儿肠道菌群的一部分，使用广泛和非特异性探针，从而观察到的关联可能是其他改变肠道菌群组成的标记映射。它也有可能其他因素在生命早期可能会引起这样的协会，研究可能没有足够大，以充分控制。不过，他们认为他们的方法可以证明这个有趣(有趣的)主题进一步研究的一个有用的工具。 作者评论:“我们已经创建了一个新的方式寻找在肠道菌群的发展随着时间的推移，有关这方面的发展，对健康结果，这是非常有用的，因为它是科学界难以定性，以一种有意义的方式，如何肠道的发展随着时间的推移，应用我们的新方法后，我们发现了一个如何在生命早期生长快或慢的婴儿在生命的早期因素的可能性，同时影响肠道虽然也有迹象表明可能与生命早期肠道菌群的组成微生物和宝宝的成长有多快“ 肠道菌群的最佳组成如何随着时间的推移发展的知识对于任何成功的操纵肠道菌群是一个先决条件(先决条件)。 “成千上万人疯狂下载。。。。。。 更多价值连城的绝密英语学习资料， 洛基内部秘密英语，技巧，策略 请在 网上 申请报名” 洛基国际英语 竭诚为您服务