Evidence map›Paper›PMID 18931303›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Effects of the gut microbiota on host adiposity are modulated by the short-chain fatty-acid binding G protein-coupled receptor, Gpr41.

Buck S Samuel, Abdullah Shaito, Toshiyuki Motoike, Federico E Rey, Fredrik Backhed, Jill K Manchester, Robert E Hammer, S Clay Williams, Jan Crowley, Masashi Yanagisawa and 1 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 746 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
746citing papers in PubMed, 1 pooled it
19.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

746 citing papers in PubMed, 1 synthesis or guideline pooled it, 1,537 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Consumption of yacon flour and energy-restricted diet increased the relative abundance of intestinal bacteria in obese adults.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Trial
  5. Trial
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Short-chain fatty acids.Nature metabolism · 2026
    Review
  14. Review
  15. Gut microbiota in health and disease.Molecular biomedicine · 2026
    Review
  16. Review
  17. Effects of dietary PQQ·NaPoultry science · 2026
    Article
  18. Article
  19. Article
  20. Article

686 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 4 countries.

Buck S SamuelCenter for Genome Sciences and Department of Medicine, Washington University School of Medicine, St. Louis, MO 63108, USA.
Abdullah Shaito
Toshiyuki Motoike
Federico E Rey
Fredrik Backhed
Jill K Manchester
Robert E Hammer
S Clay Williams
Jan Crowley
Masashi Yanagisawa
Jeffrey I Gordon
Japan Science and Technology Agency · JPThe University of Texas Southwestern Medical Center · USHoward Hughes Medical Institute · USUniversity of Gothenburg · SEWashington University in St. Louis · US

Funding

Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Brian N Finck · 1999 to 2026
$30.2M
REGULATION OF GENE EXPRESSION - SMALL INTESTINER01DK030292 · NIDDK · WASHINGTON UNIVERSITY · PI JEFFREY I GORDON, ANDREI L OSTERMAN · 1986 to 2026
$6.5M
GUT MICROBIOTA AND OBESITY: STUDIES IN GNOTOBIOTIC MICER01DK070977 · NIDDK · WASHINGTON UNIVERSITY · PI GORDON, JEFFREY I, HETTICH, ROBERT L. · 2005 to 2020
$6.3M
REGULATION OF GENE EXPRESSION IN THE SMALL INTESTINER37DK030292 · NIDDK · WASHINGTON UNIVERSITY · PI GORDON, JEFFREY I · 1993 to 2015
$4.0M
Howard Hughes Medical InstituteNIDDK NIH HHS DK30292NIDDK NIH HHS DK70977NIDDK NIH HHS P30 DK056341NIDDK NIH HHS R01 DK030292NIDDK NIH HHS R01 DK070977NIDDK NIH HHS R37 DK030292
6 · The paper itself

Abstract

The distal human intestine harbors trillions of microbes that allow us to extract calories from otherwise indigestible dietary polysaccharides. The products of polysaccharide fermentation include short-chain fatty acids that are ligands for Gpr41, a G protein-coupled receptor expressed by a subset of enteroendocrine cells in the gut epithelium. To examine the contribution of Gpr41 to energy balance, we compared Gpr41-/- and Gpr41+/+ mice that were either conventionally-raised with a complete gut microbiota or were reared germ-free and then cocolonized as young adults with two prominent members of the human distal gut microbial community: the saccharolytic bacterium, Bacteroides thetaiotaomicron and the methanogenic archaeon, Methanobrevibacter smithii. Both conventionally-raised and gnotobiotic Gpr41-/- mice colonized with the model fermentative community are significantly leaner and weigh less than their WT (+/+) littermates, despite similar levels of chow consumption. These differences are not evident when germ-free WT and germ-free Gpr41 knockout animals are compared. Functional genomic, biochemical, and physiologic studies of germ-free and cocolonized Gpr41-/- and +/+ littermates disclosed that Gpr41-deficiency is associated with reduced expression of PYY, an enteroendocrine cell-derived hormone that normally inhibits gut motility, increased intestinal transit rate, and reduced harvest of energy (short-chain fatty acids) from the diet. These results reveal that Gpr41 is a regulator of host energy balance through effects that are dependent upon the gut microbiota.

Indexed as

AdiposityAnimalsBacteroidesEnergy MetabolismGastrointestinal TractGerm-Free LifeHumansMethanobrevibacterMiceMice, KnockoutPeptide YYReceptors, G-Protein-CoupledSymbiosisGpcr41 protein, mousePeptide YYReceptors, G-Protein-Coupled

Identifiers

PMID18931303
PMCPMC2569967
OpenAlexW2142336938

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.