Evidence map›Paper›PMID 20299304›Full record

ArticleEnvironmental health perspectives2010

Polychlorinated biphenyls disrupt intestinal integrity via NADPH oxidase-induced alterations of tight junction protein expression.

Yean Jung Choi, Melissa J Seelbach, Hong Pu, Sung Yong Eum, Lei Chen, Bei Zhang, Bernhard Hennig, Michal Toborek

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

45 citing papers in PubMed, 88 citations in OpenAlex.

  1. Review
  2. Article
  3. The influence of endocrine disruptors on the gut microbiota.Turkish journal of medical sciences · 2025
    Review
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  5. Article
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  13. Temporal and Geographical Variation of Intestinal Ulcers in Grey Seals (Animals : an open access journal from MDPI · 2021
    Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Gut Microbiome Critically Impacts PCB-induced Changes in Metabolic Fingerprints and the Hepatic Transcriptome in Mice.Toxicological sciences : an official journal of the Society of Toxicology · 2020
    Article
  19. Review
  20. 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

8 authors at 2 institutions in 1 country.

Yean Jung ChoiDepartment of Neurosurgery, University of Kentucky, Lexington, 40536, USA.
Melissa J Seelbach
Hong Pu
Sung Yong Eum
Lei Chen
Bei Zhang
Bernhard Hennig
Michal Toborek
University of Kentucky · USCenter for Vascular Biology Research · US

Funding

Vascular Mechanisms of PCB-Induced Brain MetastasesP42ES007380 · NIEHS · UNIVERSITY OF KENTUCKY · PI PEARSON, KEVIN JOSEPH · 1997 to 2024
$47.8M
Tat, amyloid beta and brain endothelial barrier functionR01MH072567 · NIMH · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Michal Toborek · 2005 to 2026
$7.6M
Implications of caveolae in Tat signaling and integrity of brain endotheliumR01MH063022 · NIMH · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI PARK, MIN SEON · 2001 to 2012
$3.1M
TAT MEDIATED BRAIN ENDOTHELIAL CELL DYSFUNCTIONR01NS039254 · NINDS · UNIVERSITY OF KENTUCKY · PI TOBOREK, MICHAL · 2000 to 2009
$2.8M
NIEHS NIH HHS P42 ES007380NIEHS NIH HHS P42 ES 07380NIMH NIH HHS MH072567NIMH NIH HHS MH63022NIMH NIH HHS R01 MH063022NIMH NIH HHS R01 MH072567NINDS NIH HHS NS39254NINDS NIH HHS R01 NS039254
6 · The paper itself

Abstract

backgroundPolychlorinated biphenyls (PCBs) are widely distributed environmental toxicants that contribute to numerous disease states. The main route of exposure to PCBs is through the gastrointestinal tract; however, little is known about the effects of PCBs on intestinal epithelial barrier functions.

objectiveThe aim of the present study was to address the hypothesis that highly chlorinated PCBs can disrupt gut integrity at the level of tight junction (TJ) proteins.

methodsCaco-2 human colon adenocarcinoma cells were exposed to one of the following PCB congeners: PCB153, PCB118, PCB104, and PCB126. We then assessed NAD(P)H oxidase (NOX) activity and expression and the barrier function of Caco-2 cells. In addition, the integrity of intestinal barrier function and expression of TJ proteins were evaluated in C57BL/6 mice exposed to individual PCBs by oral gavage.

resultsExposure of Caco-2 cells to individual PCB congeners resulted in activation of NOX and increased permeability of fluorescein isothiocyanate (FITC)-labeled dextran (4 kDa). Treatment with PCB congeners also disrupted expression of TJ proteins zonula occludens-1 (ZO-1) and occludin in Caco-2 cells. Importantly, inhibition of NOX by apocynin significantly protected against PCB-mediated increase in epithelial permeability and alterations of ZO-1 protein expression. Exposure to PCBs also resulted in alterations of gut permeability via decreased expression of TJ proteins in an intact physiological animal model.

conclusionsThese results suggest that oral exposure to highly chlorinated PCBs disrupts intestinal epithelial integrity and may directly contribute to the systemic effects of these toxicants.

Indexed as

Analysis of VarianceAnimalsBlotting, WesternCaco-2 CellsElectrophoresis, Polyacrylamide GelEnvironmental PollutantsEnzyme ActivationFluorescent Antibody TechniqueHumansImmunohistochemistryImmunoprecipitationIntestinal MucosaMaleMembrane ProteinsMiceMice, Inbred C57BLEnvironmental PollutantsMembrane ProteinsNADPH OxidasesOccludinOCLN protein, humanOcln protein, mousePhosphoproteinsPolychlorinated BiphenylsTJP1 protein, humanTjp1 protein, mouseZonula Occludens-1 Protein

Identifiers

PMID20299304
PMCPMC2920918
OpenAlexW2017588114

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.