在我们的肠道里,细菌们就像是一群小战士,通过互相分享基因来快速进化。拟杆菌(Bacteroidales)是一类大量存在的肠道细菌,它们可以交换数百种基因。但这些基因转移对细菌或宿主健康的具体影响,我们还知之甚少。最近,芝加哥大学的研究人员发现了一种大 ...
抗生素自面世以来,以其良好的抗菌效果的得到广泛使用,同时也逐渐在治疗后期产生的抗药性。抗生素耐药病原体的广泛流行加剧了治疗感染的挑战,并对人类健康构成威胁。据预测,到2050年,耐药性感染每年可能导致全球1000万人死亡。
近年来,越来越多的研究表明,肠道菌群与肥胖有着密切的联系。2012 年,中国科学家赵立平教授在全球范围内首次发现肠道内的“阴沟肠杆菌B29 ”是导致肥胖的元凶,并探明了“阴沟肠杆菌B29 ”致胖的分子机制。 2012 年12月13日,赵立平教授发表在 ...
New research shows that a large, ubiquitous mobile genetic element changes the antagonistic weaponry of Bacteroides fragilis, a common bacterium of the human gut. Bacteria evolve rapidly in the ...
Rival tribes of bacteria armed with poison darts are fighting it out in your gut, with armies of traitors often winning the day ...
维生素 D 生物利用度的增加会导致微生物组发生有利于脆弱类杆菌(Bacteroides fragilis,这是一种在人体和小鼠中都有的厌氧性革兰氏阴性菌)的变化。
Recent groundbreaking research spearheaded by Drs. Yuhai Zhao and Walter J Lukiw at the LSU Health New Orleans Neuroscience ...
Interestingly, in Bacteroides fragilis, DNA inversions turned OFF the production of polysaccharide A, a molecule coating the ...
New research from the University of Chicago shows that a large, ubiquitous mobile genetic element changes the antagonistic weaponry of Bacteroides fragilis, a common bacterium of the human gut.
New research from the University of Chicago shows that a large, ubiquitous mobile genetic element changes the antagonistic weaponry of Bacteroides fragilis, a common bacterium of the human gut.
By contrast, the sequestration and breakdown of soluble starch molecules is achieved mainly in the periplasm of the Gram-negative human colonic species Bacteroides thetaiotaomicron. More ...
Some bacteria can cause mutations associated with colon cancer. Insights about the surface adhesion proteins that enable ...