加州大学旧金山分校(University of California, San Francisco)肠胃病学副教授、上述研究的资深作者林奇(Susan Lynch)说,在家中养狗可能对婴儿胃肠道起到接种作用,导致更为成熟的免疫反应,对许多过敏原较不敏感。上述研究发表在《美国国家科学院院刊》(Proceedings of the National Academy of Sciences)。
'We develop this great diversity of organisms [in the gut] over the first couple of years of life,' Dr. Lynch said. The gastrointestinal microbiome is the subject of a growing body of research showing the bacteria play key roles in metabolism, immunity and a variety of other biological processes.
林奇说,我们在一生中最初的几年就在肠道中建立了这种极为多样化的生物群落。胃肠道微生物群正成为越来越多的研究机构的研究对象,这些研究显示出,细菌在新陈代谢、免疫和多种生物过程中都扮演着关键角色。
While the study looked at mice, Dr. Lynch said the findings are consistent with previous research based on human observations and are likely to apply to people.
虽然上述研究考察的是老鼠的情况,但林奇说,相关结果与此前基于人类观察的研究一致,并有可能适用于人类。
The new study identified one specific species of bacteria, Lactobacillus johnsonii, that was strongly linked to protection against allergic responses. When isolated from the gut of one group of mice and put into the intestinal tract of other mice, 'those mice were protected,' Dr. Lynch said. 'The immune response was significantly reduced in those animals and they looked healthier.'
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