Evidence map›Paper›PMID 22572997›Full record

ArticleBiology of reproduction2012

Disrupted organization of RFamide pathways in the hypothalamus is associated with advanced puberty in female rats neonatally exposed to bisphenol A.

Sandra M Losa-Ward, Karina L Todd, Katherine A McCaffrey, Kazuyoshi Tsutsui, Heather B Patisaul

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

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  14. Effects of Di-(2-ethylhexyl) Phthalate on the Hypothalamus-Uterus in Pubertal Female Rats.International journal of environmental research and public health · 2016
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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 2 countries.

Sandra M Losa-WardDepartment of Biology, North Carolina State University, Raleigh, North Carolina 27695, USA.
Karina L Todd
Katherine A McCaffrey
Kazuyoshi Tsutsui
Heather B Patisaul
North Carolina State University · USWaseda University · JP

Funding

Endocrine Disruption of the Hypothalamic Signaling That Regulates PubertyR01ES016001 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI PATISAUL, HEATHER B · 2007 to 2011
$2.0M
NIEHS NIH HHS R01 ES016001
6 · The paper itself

Abstract

Hypothalamic neurons, which produce the kisspeptin family of peptide hormones (Kp), are critical for initiating puberty and maintaining estrous cyclicity by stimulating gonadotropin-releasing hormone (GnRH) release. Conversely, RFamide-related peptide-3 (RFRP3) neurons inhibit GnRH activity. It has previously been shown that neonatal exposure to bisphenol A (BPA) can alter the timing of female pubertal onset and induce irregular estrous cycles or premature anestrus. Here we tested the hypothesis that disrupted ontogeny of RFamide signaling pathways may be a mechanism underlying advanced puberty. To test this, we used a transgenic strain of Wistar rats whose GnRH neurons express enhanced green fluorescent protein. Pups were exposed by daily subcutaneous injection to vehicle, 17beta-estradiol (E2), 50 μg/kg BPA, or 50 mg/kg BPA, from Postnatal Day (PND) 0 through PND 3, and then cohorts were euthanized on PNDs 17, 21, 24, 28, and 33 (5-8 animals per age per exposure; males were collected on PNDs 21 and 33). Vaginal opening was advanced by E2 and 50 μg/kg BPA. On PND 28, females exposed to E2 and 50 μg/kg BPA had decreased RFRP-3 fiber density and contacts on GnRH neurons. RFRP3 perikarya were also decreased in females exposed to 50 μg/kg BPA. Data suggest that BPA-induced premature puberty results from decreased inhibition of GnRH neurons.

Indexed as

AnimalsBenzhydryl CompoundsBisphenol A CompoundsBody WeightEstrogens, Non-SteroidalFemaleGonadotropin-Releasing HormoneHypothalamusKisspeptinsMaleNeuropeptidesPhenolsPuberty, PrecociousRatsRats, TransgenicRats, WistarBenzhydryl Compoundsbisphenol ABisphenol A CompoundsEstrogens, Non-SteroidalGonadotropin-Releasing HormoneKisspeptinsNeuropeptidesPhenolsRFamide peptide

Identifiers

PMID22572997
PMCPMC3431424
OpenAlexW2107660405

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.