Evidence map›Paper›PMID 32165232›Full record

ArticleFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association2020

A 90 day oral toxicity study of blueberry polyphenols in ovariectomized sprague-dawley rats.

Dennis P Cladis, Shiyu Li, Lavanya Reddivari, Abigail Cox, Mario G Ferruzzi, Connie M Weaver

Open access · greenAbstract read
In one paragraph

Article in Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Cornelian Cherry (Biology · 2025
    Article
  3. Paternal and/or Maternal Blackberry (Antioxidants (Basel, Switzerland) · 2025
    Article
  4. Review
  5. Review
  6. Natural Functional Beverages as an Approach to Manage Diabetes.International journal of molecular sciences · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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 2 institutions in 1 country.

Dennis P CladisDept. of Food Science, Purdue University, 745 Agriculture Mall Dr, W Lafayette, IN, 47907, USA.
Shiyu LiDept. of Food Science, Purdue University, 745 Agriculture Mall Dr, W Lafayette, IN, 47907, USA.
Lavanya ReddivariDept. of Food Science, Purdue University, 745 Agriculture Mall Dr, W Lafayette, IN, 47907, USA.
Abigail CoxDept. of Comparative Pathobiology, Purdue University, 625 Harrison St, W Lafayette, IN, 47907, USA.
Mario G FerruzziPlants for Human Health Institute, North Carolina State University, 600 Laureate Way, Kannapolis, NC, 28081, USA.
Connie M WeaverDept. of Food Science, Purdue University, 745 Agriculture Mall Dr, W Lafayette, IN, 47907, USA. Electronic address: weaverconnie1995@gmail.com.
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

Regular consumption of polyphenol-rich fruits and vegetables is associated with beneficial health outcomes. To increase polyphenol intakes, consumers are increasingly using herbal and botanical dietary supplements containing concentrated polyphenol extracts. However, the safety of this consumption modality has not been vetted. To address this, ovariectomized Sprague-Dawley (OVX-SD) rats were orally gavaged with purified blueberry polyphenols at 0-1000 mg total polyphenols/kg bw/d for 90d. No differences in behavior, body weight, or food consumption were observed. No tumors or macroscopic changes were observed, and histopathological analyses showed no differences among groups. Although several statistically significant differences between treatment and control groups were observed in urine (color and pH) and blood (monocyte count, total cholesterol, and chloride ion concentration) analyses, these parameters were within normal ranges and not considered biologically significant. Intestinal permeability assessed via FITC-dextran showed increased intestinal permeability in the highest dose, though no morphological differences were found throughout the gastrointestinal tract. Given the lack of other systemic changes, this finding is likely of minimal physiological importance. These results indicate a NOAEL for blueberry polyphenols in OVX-SD rats is ≥ 1000 mg total polyphenols/kg bw/d, which translates to a 70 kg human consuming ~10 g polyphenols. Keywords: Blueberry, Polyphenol, Sub-chronic toxicity.

Indexed as

Toxicity Tests, SubchronicAnimalsBiomarkersBlueberry PlantsBody WeightBone DensityDextransFemaleFluorescein-5-isothiocyanateHydrogen-Ion ConcentrationIntestinesMonocytesNo-Observed-Adverse-Effect LevelOrgan SizeOvariectomyPermeabilityBiomarkersDextransFluorescein-5-isothiocyanatefluorescein isothiocyanate dextranPlant ExtractsPolyphenolsBlueberryPolyphenolSub-chronic toxicity

Identifiers

PMID32165232
PMCPMC7169469
OpenAlexW3009447441

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.