Evidence map›Paper›PMID 34290357›Full record

ArticleCommunications biology2021

Structure-function analysis of purified proanthocyanidins reveals a role for polymer size in suppressing inflammatory responses.

Audrey Inge Schytz Andersen-Civil, Milla Marleena Leppä, Stig M Thamsborg, Juha-Pekka Salminen, Andrew R Williams

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. PlantInternational journal of molecular sciences · 2026
    Review
  3. Supercritical COFoods (Basel, Switzerland) · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Unlocking the mechanistic potential ofJournal of traditional and complementary medicine · 2024
    Review
  11. Review
  12. Antiglycation potential of metal ions and polyphenolic extract of chickpea on thiol-protease inhibitor: A management for diabetic complications.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2024
    Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Phenolic Fraction from Peanut (Food and bioprocess technology · 2023
    Review
  19. Article
  20. 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

5 authors at 2 institutions in 2 countries.

Audrey Inge Schytz Andersen-CivilDepartment of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark.
Milla Marleena LeppäNatural Chemistry Research Group, Department of Chemistry, University of Turku, Turku, Finland.
Stig M ThamsborgDepartment of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark.
Juha-Pekka SalminenNatural Chemistry Research Group, Department of Chemistry, University of Turku, Turku, Finland.
Andrew R WilliamsDepartment of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark. arw@sund.ku.dk.ORCID http://orcid.org/0000-0002-8231-282X
University of Copenhagen · DKUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proanthocyanidins (PAC) are dietary compounds that have been extensively studied for beneficial health effects due to their anti-inflammatory properties. However, the structure-function relationships of PAC and their mode-of-action remain obscure. Here, we isolated a wide range of diverse PAC polymer mixtures of high purity from plant material. Polymer size was a key factor in determining the ability of PAC to regulate inflammatory cytokine responses in murine macrophages. PAC polymers with a medium (9.1) mean degree of polymerization (mDP) induced substantial transcriptomic changes, whereas PAC with either low (2.6) or high (12.3) mDP were significantly less active. Short-term oral treatment of mice with PAC modulated gene pathways connected to nutrient metabolism and inflammation in ileal tissue in a polymerization-dependent manner. Mechanistically, the bioactive PAC polymers modulated autophagic flux and inhibited lipopolysaccharide-induced autophagy in macrophages. Collectively, our results highlight the importance of defined structural features in the health-promoting effects of PAC-rich foods.

Indexed as

AnimalsAnti-Inflammatory AgentsCytokinesInflammationMacrophagesMicePlant ExtractsProanthocyanidinsRAW 264.7 CellsAnti-Inflammatory AgentsCytokinesPlant ExtractsProanthocyanidins

Identifiers

PMID34290357
PMCPMC8295316
OpenAlexW3137496383

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.