Evidence map›Paper›PMID 27299564›Full record

ArticlePloS one2016

Phenylpropenoic Acid Glucoside from Rooibos Protects Pancreatic Beta Cells against Cell Death Induced by Acute Injury.

Eddy Himpe, Daniel A Cunha, Imane Song, Marco Bugliani, Piero Marchetti, Miriam Cnop, Luc Bouwens

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Tryptophan Indole Derivatives: Key Players in Type 2 Diabetes Mellitus.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
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  8. Pharmaceuticals (Basel, Switzerland) · 2022
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  9. Article
  10. Herbal Medicines Targeting the ImprovedEvidence-based complementary and alternative medicine : eCAM · 2021
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. 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

7 authors.

Eddy HimpeCell Differentiation Lab, Diabetes Research Center, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Daniel A CunhaULB Center for Diabetes Research, Université Libre de Bruxelles (ULB), Brussels, Belgium.
Imane SongCell Differentiation Lab, Diabetes Research Center, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Marco BuglianiDepartment of Endocrinology and Metabolism, University of Pisa, Pisa, Italy.
Piero MarchettiDepartment of Endocrinology and Metabolism, University of Pisa, Pisa, Italy.
Miriam CnopULB Center for Diabetes Research, Université Libre de Bruxelles (ULB), Brussels, Belgium.
Luc BouwensCell Differentiation Lab, Diabetes Research Center, Vrije Universiteit Brussel (VUB), Brussels, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePrevious studies demonstrated that a phenylpropenoic acid glucoside (PPAG) from rooibos (Aspalathus linearis) extract had anti-hyperglycemic activity and significant protective effects on the pancreatic beta cell mass in a chronic diet-induced diabetes model. The present study evaluated the cytoprotective effect of the phytochemical on beta cells exposed to acute cell stress.

methodsSynthetically prepared PPAG was administered orally in mice treated with a single dose of streptozotocin to acutely induce beta cell death and hyperglycemia. Its effect was assessed on beta cell mass, proliferation and apoptotic cell death. Its cytoprotective effect was also studied in vitro on INS-1E beta cells and on human pancreatic islet cells.

resultsTreatment with the phytochemical PPAG protected beta cells during the first days after the insult against apoptotic cell death, as evidenced by TUNEL staining, and prevented loss of expression of anti-apoptotic protein BCL2 in vivo. In vitro, PPAG protected INS-1E beta cells from streptozotocin-induced apoptosis and necrosis in a BCL2-dependent and independent way, respectively, depending on glucose concentration. PPAG also protected human pancreatic islet cells against the cytotoxic action of the fatty acid palmitate.

conclusionsThese findings show the potential use of PPAG as phytomedicine which protects the beta cell mass exposed to acute diabetogenic stress.

Indexed as

AgedAged, 80 and overAnimalsApoptosisAspalathusBlood GlucoseCell DeathCell ProliferationCells, CulturedDiabetes Mellitus, ExperimentalGlucosidesHumansInsulin-Secreting CellsMaleMice, Inbred BALB CMiddle AgedBlood GlucoseGlucosidesPhenylpropionatesPlant ExtractsProtective Agents

Identifiers

PMID27299564
PMCPMC4907458

What OpenQuestion holds

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Registered trials

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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.