Interactions between Roseburia intestinalis and diet modulate atherogenesis in a murine model.

Interactions between Roseburia intestinalis and diet modulate atherogenesis in a murine model.
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DOI:
10.1038/s41564-018-0272-x
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发表时间:
2018-12
影响因子:
28.3
通讯作者:
Rey FE
Rey FE
中科院分区:
生物学1区
文献类型:
--
作者:
Kasahara K;Krautkramer KA;Org E;Romano KA;Kerby RL;Vivas EI;Mehrabian M;Denu JM;Bäckhed F;Lusis AJ;Rey FE

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Humans with metabolic and inflammatory diseases frequently harbor lower levels of butyrate-producing bacteria in their gut. However, it is not known whether variation in the levels of these organisms is causally linked with disease development and whether diet modifies the impact of these bacteria on health. Here we show that prominent gut-associated butyrate-producing bacteria species (Roseburia sp.) is inversely correlated with atherosclerotic lesion development in a genetically diverse mouse population. We use germ-free apolipoprotein E-deficient mice colonized with synthetic microbial communities that differ in their capacity to generate butyrate to demonstrate that Roseburia intestinalis interacts with dietary plant polysaccharides to (i) impact gene expression in the intestine, directing metabolism away from glycolysis and toward fatty acid utilization, (ii) lower systemic inflammation and (iii) ameliorate atherosclerosis. Furthermore, intestinal administration of butyrate reduces endotoxemia and atherosclerosis development. Altogether, our results illustrate how modifiable diet-by-microbiota interactions impact cardiovascular disease, and suggest that interventions aimed at increasing the representation of butyrate-producing bacteria may provide protection against atherosclerosis.
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