Evidence map›Paper›PMID 33629093›Full record

ArticleFood & function2021

Blueberry polyphenols alter gut microbiota & phenolic metabolism in rats.

Dennis P Cladis, Abigayle M R Simpson, Kaitlyn J Cooper, Cindy H Nakatsu, Mario G Ferruzzi, Connie M Weaver

Open access · greenAbstract read
In one paragraph

Article in Food & function, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Metabolic fate of rambutan (Food chemistry: X · 2026
    Article
  5. Article
  6. Cornelian Cherry (Biology · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Effect of SinetrolNutrition & metabolism · 2024
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Bioactives in the Food Supply: Effects on CVD Health.Current atherosclerosis reports · 2022
    Review
  20. Dietary Polyphenol, Gut Microbiota, and Health Benefits.Antioxidants (Basel, Switzerland) · 2022
    Review
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 2 institutions in 1 country.

Dennis P CladisDept. of Food Science, Purdue University, 745 Agriculture Mall Dr, W Lafayette, IN 47907, USA. weaverconnie1995@gmail.com.
Abigayle M R Simpson
Kaitlyn J Cooper
Cindy H Nakatsu
Mario G Ferruzzi
Connie M Weaver
Purdue University West Lafayette · USNorth Carolina State University · US

Funding

Berries and BonesR01AT008754 · NCCIH · PURDUE UNIVERSITY · PI FORMAN, MICHELE ROBIN · 2014 to 2018
$3.9M
NCCIH NIH HHS R01 AT008754
6 · The paper itself

Abstract

Consuming polyphenol-rich fruits and vegetables, including blueberries, is associated with beneficial health outcomes. Interest in enhancing polyphenol intakes via dietary supplements has grown, though differences in fruit versus supplement matrix on gut microbiota and ultimate phenolic metabolism to bioactive metabolites are unknown. To evaluate this, 5-month-old, ovariectomized, Sprague-Dawley rats were gavaged for 90 d with a purified extract of blueberry polyphenols (0, 50, 250, or 1000 mg total polyphenols per kg bw per d) or lyophilized blueberries (50 mg total polyphenols per kg bw per d, equivalent to 150 g fresh blueberries per day in humans). Urine, feces, and tissues were assessed for gut microbiota and phenolic metabolism. Significant dose- and food matrix-dependent effects were observed at all endpoints measured. Gut microbial populations showed increased diversity at moderate doses but decreased diversity at high doses. Urinary phenolic metabolites were primarily observed as microbially derived metabolites and underwent extensive host xenobiotic phase II metabolism. Thus, blueberry polyphenols in fruit and supplements induce differences in gut microbial communities and phenolic metabolism, which may alter intended health effects.

Indexed as

PolyphenolsAnimalsBlueberry PlantsFemaleGastrointestinal MicrobiomeOvariectomyPhenolsPlant ExtractsRatsRats, Sprague-DawleyTissue DistributionPhenolsPlant ExtractsPolyphenols

Identifiers

PMID33629093
PMCPMC8011555
OpenAlexW3131057358

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.