Evidence map›Paper›PMID 32747812›Full record

ArticleNature chemical biology2021

Bariatric surgery reveals a gut-restricted TGR5 agonist with anti-diabetic effects.

Snehal N Chaudhari, David A Harris, Hassan Aliakbarian, James N Luo, Matthew T Henke, Renuka Subramaniam, Ashley H Vernon, Ali Tavakkoli, Eric G Sheu, A Sloan Devlin

Open access · greenAbstract read
In one paragraph

Article in Nature chemical biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed
12.2field-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

92 citing papers in PubMed, 138 citations in OpenAlex.

  1. Trial
  2. Role of Bile Acid Receptors in Non-Infectious Diarrhea: A Narrative Review.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Sleeve gastrectomy protects lean mice from future obesity.bioRxiv : the preprint server for biology · 2026
    Article
  9. Role of Gut Microbiota in Diabetic HFpEF: Mechanisms and Therapeutic Implications.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Interactions betweeniMetaOmics · 2025
    Article
  18. Review
  19. Article
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Snehal N Chaudhari *Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA.
David A Harris *Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Hassan AliakbarianDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0001-9965-6920
James N LuoDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0001-9782-2323
Matthew T HenkeDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA.
Renuka SubramaniamDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Ashley H VernonDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Ali TavakkoliDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Eric G SheuDepartment of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. esheu@bwh.harvard.edu.ORCID http://orcid.org/0000-0003-2707-1768
A Sloan DevlinDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA. sloan_devlin@hms.harvard.edu.ORCID http://orcid.org/0000-0001-5598-3751
Brigham and Women's Hospital · USHarvard University · US

Funding

SPECIAL ASSAY COREP30DK036836 · NIDDK · JOSLIN DIABETES CENTER · PI Alessandro Doria · 1986 to 2026
$50.5M
Transgenic CoreP30DK057521 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI KAHN, BARBARA B. · 2000 to 2019
$31.4M
Harvard Clinical and Translational Science CenterKL2TR001100 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2013 to 2017
$8.5M
Human microbiome metabolites in health and diseaseR35GM128618 · NIGMS · HARVARD MEDICAL SCHOOL · PI Abigail Sloan Devlin · 2018 to 2026
$4.1M
NCATS NIH HHS KL2 TR001100NIDDK NIH HHS P30 DK036836NIDDK NIH HHS P30 DK057521NIGMS NIH HHS R35 GM128618
6 · The paper itself

Abstract

Bariatric surgery, the most effective treatment for obesity and type 2 diabetes, is associated with increased levels of the incretin hormone glucagon-like peptide-1 (GLP-1) and changes in levels of circulating bile acids. The levels of individual bile acids in the gastrointestinal (GI) tract after surgery have, however, remained largely unstudied. Using ultra-high performance liquid chromatography-mass spectrometry-based quantification, we observed an increase in an endogenous bile acid, cholic acid-7-sulfate (CA7S), in the GI tract of both mice and humans after sleeve gastrectomy. We show that CA7S is a Takeda G-protein receptor 5 (TGR5) agonist that increases Tgr5 expression and induces GLP-1 secretion. Furthermore, CA7S administration increases glucose tolerance in insulin-resistant mice in a TGR5-dependent manner. CA7S remains gut restricted, minimizing off-target effects previously observed for TGR5 agonists absorbed into the circulation. By studying changes in individual metabolites after surgery, the present study has revealed a naturally occurring TGR5 agonist that exerts systemic glucoregulatory effects while remaining confined to the gut.

Indexed as

AnimalsAnti-Obesity AgentsBariatric SurgeryBileCaco-2 CellsCholic AcidColonGene Expression RegulationGlucagon-Like Peptide 1Glucose Tolerance TestHEK293 CellsHumansInsulin ResistanceMaleMiceMice, Inbred C57BLAnti-Obesity AgentsCholic AcidGlucagon-Like Peptide 1GPBAR1 protein, humanGpbar1 protein, mouseReceptors, G-Protein-CoupledRNA, Small InterferingSulfates

Identifiers

PMID32747812
PMCPMC7891870
OpenAlexW3047478453

What OpenQuestion holds

Textmetadata
LicenceTDM
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.