Evidence map›Paper›PMID 26598695›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Timing of androgen receptor disruption and estrogen exposure underlies a spectrum of congenital penile anomalies.

Zhengui Zheng, Brooke A Armfield, Martin J Cohn

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 2 pooled it
10.3field-weighted citation impact, top 1% 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

76 citing papers in PubMed, 2 syntheses or guidelines pooled it, 130 citations in OpenAlex.

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  14. Navigating Ambiguous Genitalia: A Case of Dysgerminoma in an Afghan Boy.International medical case reports journal · 2025
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16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Zhengui ZhengHoward Hughes Medical Institute, University of Florida, Gainesville, FL 32610; Department of Molecular Genetics and Microbiology, University of Florida Genetics Institute, University of Florida, Gainesville, FL 32610; Department of Physiology, School of Medicine, Southern Illinois University, Carbondale, IL 62901;ORCID http://orcid.org/0000-0003-0997-2976
Brooke A ArmfieldHoward Hughes Medical Institute, University of Florida, Gainesville, FL 32610; Department of Molecular Genetics and Microbiology, University of Florida Genetics Institute, University of Florida, Gainesville, FL 32610;
Martin J CohnHoward Hughes Medical Institute, University of Florida, Gainesville, FL 32610; Department of Molecular Genetics and Microbiology, University of Florida Genetics Institute, University of Florida, Gainesville, FL 32610; Department of Biology, University of Florida, Gainesville, FL 32610 mjcohn@ufl.edu.
Howard Hughes Medical Institute · USSouthern Illinois University Carbondale · US

Funding

Targets of Endocrine Disruptors in External GenitaliaR01ES017099 · NIEHS · UNIVERSITY OF FLORIDA · PI COHN, MARTIN J · 2010 to 2014
$2.0M
Cell Signaling and Lineage During Penile DevelopmentR01HD054554 · NICHD · UNIVERSITY OF FLORIDA · PI COHN, MARTIN J · 2007 to 2009
$901k
DORSOVENTRAL PATTERNING OF THE MAMMALIAN CLOACAF32HD070721 · NICHD · UNIVERSITY OF FLORIDA · PI ARMFIELD, BROOKE A · 2012 to 2014
$156k
NICHD NIH HHS F32 HD070721NICHD NIH HHS R01 HD054554NIEHS NIH HHS ES017099NIEHS NIH HHS R01 ES017099
6 · The paper itself

Abstract

Congenital penile anomalies (CPAs) are among the most common human birth defects. Reports of CPAs, which include hypospadias, chordee, micropenis, and ambiguous genitalia, have risen sharply in recent decades, but the causes of these malformations are rarely identified. Both genetic anomalies and environmental factors, such as antiandrogenic and estrogenic endocrine disrupting chemicals (EDCs), are suspected to cause CPAs; however, little is known about the temporal window(s) of sensitivity to EDCs, or the tissue-specific roles and downstream targets of the androgen receptor (AR) in external genitalia. Here, we show that the full spectrum of CPAs can be produced by disrupting AR at different developmental stages and in specific cell types in the mouse genital tubercle. Inactivation of AR during a narrow window of prenatal development results in hypospadias and chordee, whereas earlier disruptions cause ambiguous genitalia and later disruptions cause micropenis. The neonatal phase of penile development is controlled by the balance of AR to estrogen receptor α (ERα) activity; either inhibition of androgen or augmentation of estrogen signaling can induce micropenis. AR and ERα have opposite effects on cell division, apoptosis, and regulation of Hedgehog, fibroblast growth factor, bone morphogenetic protein, and Wnt signaling in the genital tubercle. We identify Indian hedgehog (Ihh) as a novel downstream target of AR in external genitalia and show that conditional deletion of Ihh inhibits penile masculinization. These studies reveal previously unidentified cellular and molecular mechanisms by which antiandrogenic and estrogenic signals induce penile malformations and demonstrate that the timing of endocrine disruption can determine the type of CPA.

Indexed as

AnimalsAnimals, NewbornCell ProliferationEstrogen Receptor alphaEstrogensGene Expression Regulation, DevelopmentalGenital Diseases, MaleGenitaliaImmunohistochemistryIn Situ HybridizationMaleMice, KnockoutMice, TransgenicPenisReceptors, AndrogenReverse Transcriptase Polymerase Chain ReactionEstrogen Receptor alphaEstrogensReceptors, Androgenandrogencongenital malformationexternal genitaliahypospadiassexual differentiation

Identifiers

PMID26598695
PMCPMC4703017
OpenAlexW2177487621

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.