Evidence map›Paper›PMID 21190954›Full record

ArticleEndocrinology2011

Endocrine disruption of brain sexual differentiation by developmental PCB exposure.

Sarah M Dickerson, Stephanie L Cunningham, Heather B Patisaul, Michael J Woller, Andrea C Gore

Open access · greenAbstract read
In one paragraph

Article in Endocrinology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
7.8field-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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 139 citations in OpenAlex.

  1. Pooled it
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  14. Gene×environment interactions in autism spectrum disorders.Current topics in developmental biology · 2023
    Review
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9 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Sarah M DickersonDivision of Pharmacology and Toxicology and Center for Molecular and Cellular Toxicology, The University of Texas at Austin, Texas 78712-0125, USA.
Stephanie L Cunningham
Heather B Patisaul
Michael J Woller
Andrea C Gore
The University of Texas at Austin · USNorth Carolina State University · USUniversity of Wisconsin–Whitewater · US

Funding

Pilot Project ProgramP30ES007784 · NIEHS · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI RICHIE, ELLEN R · 1996 to 2011
$16.4M
Training in Molecular Toxicology/Environmental DiseaseT32ES007247 · NIEHS · UNIVERSITY OF TEXAS AUSTIN · PI RICHBURG, JOHN H · 1990 to 2014
$2.9M
Endocrine Disruption of the Hypothalamic Signaling That Regulates PubertyR01ES016001 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI PATISAUL, HEATHER B · 2007 to 2011
$2.0M
Transgenerational epigenetic effects of PCBs on neuroendocrine systemsRC1ES018139 · NIEHS · UNIVERSITY OF TEXAS AT AUSTIN · PI GORE, ANDREA C · 2009 to 2010
$838k
Neuroendocrine outcomes of prenatal PCB exposuresR21ES012272 · NIEHS · UNIVERSITY OF TEXAS AUSTIN · PI GORE, ANDREA C · 2003 to 2005
$419k
NIEHS NIH HHS ES012272NIEHS NIH HHS ES016001NIEHS NIH HHS ES018139NIEHS NIH HHS ES07784NIEHS NIH HHS P30 ES007784NIEHS NIH HHS R01 ES016001NIEHS NIH HHS R21 ES012272NIEHS NIH HHS RC1 ES018139NIEHS NIH HHS T32 ES007247NIEHS NIH HHS T32 ES07247
6 · The paper itself

Abstract

In mammals, sexual differentiation of the hypothalamus occurs during prenatal and early postnatal development due in large part to sex differences in hormones. These early organizational processes are critically important for the attainment and maintenance of adult reproductive functions. We tested the hypothesis that perinatal exposure to polychlorinated biphenyls (PCBs) that disrupt hormonal pathways would perturb reproductive maturation and the sexually dimorphic development of neuroendocrine systems in the preoptic area (POA). Pregnant Sprague-Dawley rats were injected on gestational d 16 and 18 with vehicle (dimethylsulfoxide), Aroclor 1221 (A1221, an estrogenic PCB mix), a reconstituted PCB mixture representing those highest in human body burden (PCBs 138, 153, 180), or estradiol benzoate, an estrogenic control. Male and female pups were monitored for somatic and reproductive development. In adulthood, some rats were perfused and used for immunohistochemistry of estrogen receptor α, kisspeptin, and coexpression of Fos in GnRH neurons. Other rats were used to obtain fresh-frozen POA dissections for use in a PCR-based 48-gene expression array. Pubertal onset was advanced and estrous cyclicity irregular in endocrine-disrupted females. Furthermore, sexual differentiation of female neuroendocrine systems was masculinized/defeminized. Specifically, in the adult female anteroventral periventricular nucleus, estrogen receptor α-cell numbers and kisspeptin fiber density were significantly decreased, as was GnRH-Fos coexpression. PCR analysis identified androgen receptor, IGF-I, N-methyl-d-aspartate receptor subunit NR2b, and TGFβ1 mRNAs as significantly down-regulated in endocrine-disrupted female POAs. These data suggest that developmental PCBs profoundly impair the sexual differentiation of the female hypothalamus.

Indexed as

AnimalsEstrogen Receptor alphaFemaleGonadotropin-Releasing HormoneImmunohistochemistryInsulin-Like Growth Factor IKisspeptinsMaleNeurosecretory SystemsPolychlorinated BiphenylsPolymerase Chain ReactionPregnancyPreoptic AreaProteinsProto-Oncogene Proteins c-fosRatsEstrogen Receptor alphaGonadotropin-Releasing HormoneInsulin-Like Growth Factor IKiss1 protein, ratKisspeptinsPolychlorinated BiphenylsProteinsProto-Oncogene Proteins c-fosReceptors, AndrogenReceptors, N-Methyl-D-AspartateTransforming Growth Factor beta

Identifiers

PMID21190954
PMCPMC3037168
OpenAlexW2028763868

What OpenQuestion holds

Textmetadata
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.