Evidence map›Paper›PMID 21988766›Full record

ArticleEnvironmental health perspectives2011

Chronic oral exposure to bisphenol A results in a nonmonotonic dose response in mammary carcinogenesis and metastasis in MMTV-erbB2 mice.

Sarah Jenkins, Jun Wang, Isam Eltoum, Renee Desmond, Coral A Lamartiniere

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

56 citing papers in PubMed, 174 citations in OpenAlex.

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  10. Recruitment of CTCF to anProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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  14. Sex-Specific Effects of Plastic Caging in Murine Viral Myocarditis.International journal of molecular sciences · 2021
    Article
  15. Article
  16. Exposure to bisphenol A and breast cancer risk in northern Mexican women.International archives of occupational and environmental health · 2021
    Article
  17. Article
  18. Article
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  20. Endocrine-disrupting chemicals and breastfeeding duration: a review.Current opinion in endocrinology, diabetes, and obesity · 2020
    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

5 authors at 2 institutions in 1 country.

Sarah JenkinsDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Jun Wang
Isam Eltoum
Renee Desmond
Coral A Lamartiniere
Comprehensive Blood & Cancer Center · USUniversity of Alabama at Birmingham · US

Funding

Center for Environment and Mammary Gland DevelopmentU01ES012771 · NIEHS · FOX CHASE CANCER CENTER · PI RUSSO, JOSE · 2003 to 2009
$11.1M
NCI NIH HHS R25 CA07888-22NIEHS NIH HHS U01 ES012771
6 · The paper itself

Abstract

backgroundBisphenol A (BPA) is a synthetic compound used to produce plastics and epoxy resins. BPA can leach from these products in appreciable amounts, resulting in nearly ubiquitous daily exposure to humans. Whether BPA is harmful to humans, especially when administered orally in concentrations relevant to humans, is a topic of debate.

objectivesIn this study, we investigated the role of chronic oral exposure to BPA during adulthood on mammary carcinogenesis by using a transgenic mouse model that spontaneously develops tumors through overexpression of wild-type erbB2 [mouse mammary tumor virus (MMTV)-erbB2].

methodsMMTV-erbB2 mice were exposed to 0, 2.5, 25, 250, or 2,500 µg BPA/L drinking water from 56 until 112 days of age (for mechanism of action) or 252 days of age (for tumorigenesis). Cellular and molecular mechanisms of BPA action in the mammary gland were investigated via immunohistochemistry and immunoblotting.

resultsOnly low doses of BPA significantly decreased tumor latency and increased tumor multiplicity, tumor burden, and the incidence of metastasis. All BPA doses significantly increased the cell proliferation index, but only the higher doses also increased the apoptotic index in the mammary gland. At the molecular level, 25 µg BPA/L, but not 2,500 µg BPA/L, increased phosphorylation of erbB2, erbB3, insulin-like growth factor 1 receptor, and Akt in the mammary gland. DISCUSSION: Low, but not high, BPA doses significantly accelerated mammary tumorigenesis and metastasis in MMTV-erbB2 mice. The combined ratio of cell proliferation and apoptosis indices and alterations in protein expression best predicted the ability of each dose of BPA to alter tumorigenesis in this model.

Indexed as

Neoplasm MetastasisAnimalsBenzhydryl CompoundsBisphenol A CompoundsCarcinogens, EnvironmentalCell Transformation, NeoplasticDose-Response Relationship, DrugFemaleMammary Glands, AnimalMammary Neoplasms, AnimalMiceMice, TransgenicPhenolsPhosphorylationProto-Oncogene Proteins c-aktReceptor, IGF Type 1Benzhydryl Compoundsbisphenol ABisphenol A CompoundsCarcinogens, EnvironmentalPhenolsProto-Oncogene Proteins c-aktReceptor, IGF Type 1Receptor Protein-Tyrosine Kinases

Identifiers

PMID21988766
PMCPMC3226508
OpenAlexW2059392150

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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.