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The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Microbiota-induced obesity requires farnesoid X receptor

Open access
Parséus, Ava, Sommer, Nina, Sommer, Felix, Caesar, Robert, Molinaro, Antonio, Ståhlman, Marcus, Greiner, Thomas U, Perkins, Rosie, Bäckhed, Fredrik·2017·Gut

Abstract

Objective: The gut microbiota has been implicated as an environmental factor that modulates obesity, and recent evidence suggests that microbiota-mediated changes in bile acid profiles and signalling through the bile acid nuclear receptor farnesoid X receptor (FXR) contribute to impaired host metabolism. Here we investigated if the gut microbiota modulates obesity and associated phenotypes through FXR. Design: We fed germ-free (GF) and conventionally raised (CONV-R) wild-type and Fxr−/−mice a high-fat diet (HFD) for 10 weeks. We monitored weight gain and glucose metabolism and analysed the gut microbiota and bile acid composition, beta-cell mass, accumulation of macrophages in adipose tissue, liver steatosis, and expression of target genes in adipose tissue and liver. We also transferred the microbiota of wild-type and Fxr-deficient mice to GF wild-type mice. Results: The gut microbiota promoted weight gain and hepatic steatosis in an FXR-dependent manner, and the bile acid profiles and composition of faecal microbiota differed between Fxr−/−and wild-type mice. The obese phenotype in colonised wild-type mice was associated with increased beta-cell mass, increased adipose inflammation, increased steatosis and expression of genes involved in lipid uptake. By transferring the caecal microbiota from HFD-fed Fxr−/−and wild-type mice into GF mice, we showed that the obesity phenotype was transferable. Conclusions: Our results indicate that the gut microbiota promotes diet-induced obesity and associated phenotypes through FXR, and that FXR may contribute to increased adiposity by altering the microbiota composition.

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Crossref · 10.1136/gutjnl-2015-310283

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Metadata

Authors
Parséus, A., Sommer, N., Sommer, F., Caesar, R., Molinaro, A., Ståhlman, M., Greiner, T. U., Perkins, R., & Bäckhed, F.
Venue
Gut
Publisher
BMJ
Published
2016-01-06
Volume
66
Issue
3
Pages
429-437
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2231949068
Cited by
474
References
19
FWCI
20.77
Type
journal article
Language
en
Open access
hybrid

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