Evidence map›Paper›PMID 28329021›Full record

ArticlePloS one2017

Comparison of anti-inflammatory activities of an anthocyanin-rich fraction from Portuguese blueberries (Vaccinium corymbosum L.) and 5-aminosalicylic acid in a TNBS-induced colitis rat model.

Sónia R Pereira, Rita Pereira, Isabel Figueiredo, Victor Freitas, Teresa C P Dinis, Leonor M Almeida

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Effect ofNutrients · 2025
    Article
  3. Review
  4. Journal of experimental pharmacology · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. UsingFrontiers in pharmacology · 2022
    Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Anthocyanin Pigments: Beyond Aesthetics.Molecules (Basel, Switzerland) · 2020
    Review
  19. Review
  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

6 authors at 3 institutions in 1 country.

Sónia R PereiraCNC-Center for Neuroscience and Cell Biology, Coimbra, Portugal.
Rita PereiraCNC-Center for Neuroscience and Cell Biology, Coimbra, Portugal.
Isabel FigueiredoCNC-Center for Neuroscience and Cell Biology, Coimbra, Portugal.
Victor FreitasDepartment of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal.
Teresa C P DinisCNC-Center for Neuroscience and Cell Biology, Coimbra, Portugal.
Leonor M AlmeidaCNC-Center for Neuroscience and Cell Biology, Coimbra, Portugal.
Centro de Neurociências e Biologia CelularUniversidade do Porto · PTUniversity of Coimbra · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the actual therapeutic approaches for inflammatory bowel disease (IBD), efficient and secure alternative options remain a research focus. In this context, anthocyanins seem promising natural anti-inflammatory agents, but their action mechanisms and efficacy as compared with established drugs still require more clarification. The main aim of this study was to compare the anti-inflammatory action of a chemically characterized anthocyanin-rich fraction (ARF), obtained from Portuguese blueberries (Vaccinium corymbosum L.), with that of 5-aminosalicylic acid (5-ASA), a first-line drug in IBD, in a 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis rat model. Such fraction showed a high content and great molecular diversity of anthocyanins, with malvidin-3-galactoside and petunidin-3-arabinoside in the highest concentrations. After daily administration by intragastric infusion for 8 days, ARF, at a molar anthocyanin concentration about 30 times lower than 5-ASA, showed a higher effectiveness in counteracting the intestinal inflammation, as assessed by i) body weight variation and colon damage score, ii) reduction in leukocyte infiltration, iii) increase in antioxidant defenses and iv) by downregulation of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in colon tissue homogenates. The strong inhibition of COX-2 expression seems to be a crucial anti-inflammatory mechanism common to both ARF and 5-ASA, but the additional higher abilities of anthocyanins to downregulate iNOS and to decrease leukocytes infiltration and to increase antioxidant defenses in colon may account for the much higher anti-inflammatory action of anthocyanins. These data may contribute to the development of a promising natural approach in IBD management.

Indexed as

AnimalsAnthocyaninsAnti-Inflammatory AgentsAntioxidantsBlueberry PlantsColitisColonCyclooxygenase 2InflammationInflammatory Bowel DiseasesIntestinal MucosaIntestinesMaleMesalamineNitric Oxide Synthase Type IIRatsAnthocyaninsAnti-Inflammatory AgentsAntioxidantsCyclooxygenase 2MesalamineNitric Oxide Synthase Type IIpetunidinTrinitrobenzenesulfonic Acid

Identifiers

PMID28329021
PMCPMC5362129
OpenAlexW2598535813

What OpenQuestion holds

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LicenceCC BY
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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.