Evidence map›Paper›PMID 28769799›Full record

ArticleFrontiers in pharmacology2017

Allspice and Clove As Source of Triterpene Acids Activating the G Protein-Coupled Bile Acid Receptor TGR5.

Angela Ladurner, Martin Zehl, Ulrike Grienke, Christoph Hofstadler, Nadina Faur, Fátima C Pereira, David Berry, Verena M Dirsch, Judith M Rollinger

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

17 citing papers in PubMed, 35 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Biological Actions of Bile Acids via Cell Surface Receptors.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Biomolecules · 2020
    Article
  16. Frontiers in microbiology · 2018
    Article
  17. Frontiers in chemistry · 2018
    Article
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

9 authors at 1 institution in 1 country.

Angela LadurnerDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Martin ZehlDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Ulrike GrienkeDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Christoph HofstadlerDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Nadina FaurDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Fátima C PereiraDepartment of Microbiology and Ecosystem Science, University of ViennaVienna, Austria.
David BerryDepartment of Microbiology and Ecosystem Science, University of ViennaVienna, Austria.
Verena M DirschDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
Judith M RollingerDepartment of Pharmacognosy, Faculty of Life Sciences, University of ViennaVienna, Austria.
University of Vienna · AT

Funding

Austrian Science Fund FWF P 26127Austrian Science Fund FWF P 27831
6 · The paper itself

Abstract

Worldwide, metabolic diseases such as obesity and type 2 diabetes have reached epidemic proportions. A major regulator of metabolic processes that gained interest in recent years is the bile acid receptor TGR5 (Takeda G protein-coupled receptor 5). This G protein-coupled membrane receptor can be found predominantly in the intestine, where it is mainly responsible for the secretion of the incretins glucagon-like peptide 1 (GLP-1) and peptide YY (PYY). The aim of this study was (i) to identify plant extracts with TGR5-activating potential, (ii) to narrow down their activity to the responsible constituents, and (iii) to assess whether the intestinal microbiota produces transformed metabolites with a different activity profile. Chenodeoxycholic acid (CDCA) served as positive control for both, the applied cell-based luciferase reporter gene assay for TGR5 activity and the biotransformation assay using mouse fecal slurry. The suitability of the workflow was demonstrated by the biotransformation of CDCA to lithocholic acid resulting in a distinct increase in TGR5 activity. Based on a traditional Tibetan formula, 19 plant extracts were selected and investigated for TGR5 activation. Extracts from the commonly used spices

Indexed as

Kaempferia galangaPimenta dioicaSyzygium aromaticumTGR5triterpene acids

Identifiers

PMID28769799
PMCPMC5511840
OpenAlexW2734566874

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.