Evidence map›Paper›PMID 20435547›Full record

ArticleEnvironmental health perspectives2010

Maternal dioxin exposure combined with a diet high in fat increases mammary cancer incidence in mice.

Michele La Merrill, Rachel Harper, Linda S Birnbaum, Robert D Cardiff, David W Threadgill

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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

23 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Endocrine-disrupting chemicals and breastfeeding duration: a review.Current opinion in endocrinology, diabetes, and obesity · 2020
    Review
  7. Article
  8. Dioxin and the AH Receptor: Synergy of Discovery.Current opinion in toxicology · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Effects of obesity on hormonally driven cancer in women.Science translational medicine · 2016
    Review
  13. Timing of Environmental Exposures as a Critical Element in Breast Cancer Risk.The Journal of clinical endocrinology and metabolism · 2015
    Review
  14. DDT Exposure in Utero and Breast Cancer.The Journal of clinical endocrinology and metabolism · 2015
    Article
  15. Multiscale analysis of the murine intestine for modeling human diseases.Integrative biology : quantitative biosciences from nano to macro · 2015
    Article
  16. Review
  17. Article
  18. TCDD inhibition of canonical Wnt signaling disrupts prostatic bud formation in mouse urogenital sinus.Toxicological sciences : an official journal of the Society of Toxicology · 2013
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Michele La MerrillDepartment of Genetics, Center for Environmental and Health Susceptibility, Lineberger Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA.
Rachel Harper
Linda S Birnbaum
Robert D Cardiff
David W Threadgill
University of North Carolina at Chapel Hill · USNational Institutes of Health · USUniversity of California, Davis · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
UNC-CH CENTER FOR ENVIRONMENTAL HEALTH &SUSCEPTIBILITYP30ES010126 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Melissa A. Troester · 2001 to 2026
$36.3M
Modeling heterogeneity for safe cancer prevention and detectionU01CA105417 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI THREADGILL, DAVID W. · 2004 to 2013
$6.7M
NCI NIH HHS BC050873NCI NIH HHS CA016086NCI NIH HHS CA105417NCI NIH HHS P30 CA016086NCI NIH HHS U01 CA105417NIEHS NIH HHS ES010126NIEHS NIH HHS P30 ES010126
6 · The paper itself

Abstract

backgroundRESULTS from previous studies have suggested that breast cancer risk correlates with total lifetime exposure to estrogens and that early-life 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure or diets high in fat can also increase cancer risk.

objectivesBecause both TCDD and diet affect the estrogen pathway, we examined how TCDD and a high-fat diet (HFD) interact to alter breast cancer susceptibility.

methodsWe exposed pregnant female FVB/NJ mice (12.5 days postcoitus) to 1 microg/kg TCDD or vehicle; at parturition, the dams were randomly assigned to a low-fat diet (LFD) or a high-fat diet (HFD). Female offspring were maintained on the same diets after weaning and were exposed to 7,12-dimethylbenz[a]anthracene on postnatal days (PNDs) 35, 49, and 63 to initiate mammary tumors. A second cohort of females was treated identically until PND35 or PND49, when mammary gland morphology was examined, or PND50, when mammary gland mRNA was analyzed.

resultsWe found that maternal TCDD exposure doubled mammary tumor incidence only in mice fed the HFD. Among HFD-fed mice, maternal TCDD exposure caused rapid mammary development with increased Cyp1b1 (cytochrome P450 1B1) expression and decreased Comt (catechol-O-methyltransferase) expression in mammary tissue. Maternal TCDD exposure also increased mammary tumor Cyp1b1 expression.

conclusionsOur data suggest that the HFD increases sensitivity to maternal TCDD exposure, resulting in increased breast cancer incidence, by changing metabolism capability. These results provide a mechanism to explain epidemiological data linking early-life TCDD exposure and diets high in fat to increased risk for breast cancer in humans.

Indexed as

AnimalsAryl Hydrocarbon HydroxylasesCatechol O-MethyltransferaseCocarcinogenesisCytochrome P-450 CYP1B1Dietary FatsEnvironmental PollutantsEstrogens, Non-SteroidalFemaleGene ExpressionHumansMammary Neoplasms, ExperimentalMicePolychlorinated DibenzodioxinsPregnancyPrenatal Exposure Delayed EffectsAryl Hydrocarbon HydroxylasesCatechol O-MethyltransferaseCYP1B1 protein, humanCyp1b1 protein, mouseCytochrome P-450 CYP1B1Dietary FatsEnvironmental PollutantsEstrogens, Non-SteroidalPolychlorinated Dibenzodioxins

Identifiers

PMID20435547
PMCPMC2866672
OpenAlexW1978167545

What OpenQuestion holds

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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.