Evidence map›Paper›PMID 30249413›Full record

ArticleDifferentiation; research in biological diversity

Development of the human penis and clitoris.

Laurence Baskin, Joel Shen, Adriane Sinclair, Mei Cao, Xin Liu, Ge Liu, Dylan Isaacson, Maya Overland, Yi Li, Gerald R Cunha

Abstract read
In one paragraph

Article in Differentiation; research in biological diversity. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
9.4field-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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 113 citations in OpenAlex.

  1. Pooled it
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  4. Review
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  7. Article
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  9. Article
  10. Article
  11. Article
  12. Update vulval dermatology - diagnostics and therapy.Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG · 2025
    Review
  13. Review
  14. Article
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  20. Observational
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

10 authors at 1 institution in 1 country.

Laurence BaskinUCSF, USA. Electronic address: Laurence.baskin@ucsf.edu.
Joel ShenUCSF, USA.
Adriane SinclairUCSF, USA.
Mei CaoUCSF, USA.
Xin LiuUCSF, USA.
Ge LiuUCSF, USA.
Dylan IsaacsonUCSF, USA.
Maya OverlandUCSF, USA.
Yi LiUCSF, USA.
Gerald R CunhaUCSF, USA.
BASF (United States) · US

Funding

UCSF KURe Career Development ProgramK12DK083021 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BASKIN, LAURENCE, CARROLL, PETER R · 2008 to 2017
$5.9M
Hypospadias Differentiation and Endocrine DisruptorsR01DK058105 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BASKIN, LAURENCE · 2003 to 2015
$2.7M
NIDDK NIH HHS K12 DK083021NIDDK NIH HHS R01 DK058105
6 · The paper itself

Abstract

The human penis and clitoris develop from the ambisexual genital tubercle. To compare and contrast the development of human penis and clitoris, we used macroscopic photography, optical projection tomography, light sheet microscopy, scanning electron microscopy, histology and immunohistochemistry. The human genital tubercle differentiates into a penis under the influence of androgens forming a tubular urethra that develops by canalization of the urethral plate to form a wide diamond-shaped urethral groove (opening zipper) whose edges (urethral folds) fuse in the midline (closing zipper). In contrast, in females, without the influence of androgens, the vestibular plate (homologue of the urethral plate) undergoes canalization to form a wide vestibular groove whose edges (vestibular folds) remain unfused, ultimately forming the labia minora defining the vaginal vestibule. The neurovascular anatomy is similar in both the developing human penis and clitoris and is the key to successful surgical reconstructions.

Indexed as

ClitorisFemaleHumansMaleMicroscopy, Electron, ScanningPenisUrethraCanalization and fusionClitorisDevelopmentHumanPenis

Identifiers

PMID30249413
PMCPMC6234061
OpenAlexW2888121413

What OpenQuestion holds

Textmetadata
LicenceTDM
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.