Evidence map›Paper›PMID 18499746›Full record

ArticleEndocrinology2008

Sexual differentiation of vasopressin innervation of the brain: cell death versus phenotypic differentiation.

Geert J de Vries, Michelle Jardon, Mohammed Reza, Greta J Rosen, Eleanor Immerman, Nancy G Forger

Open access · greenAbstract read
In one paragraph

Article in Endocrinology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Birth delivery mode alters perinatal cell death in the mouse brain.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  4. Review
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  9. Sensitive periods for hormonal programming of the brain.Current topics in behavioral neurosciences · 2014
    Review
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  11. Article
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  15. Article
  16. Review
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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

6 authors at 1 institution in 1 country.

Geert J de VriesCenter for Neuroendocrine Studies, University of Massachusetts, Amherst, Massachusetts 01003, USA. devries@cns.umass.edu
Michelle Jardon
Mohammed Reza
Greta J Rosen
Eleanor Immerman
Nancy G Forger
University of Massachusetts Amherst · US

Funding

The Neural Basis of Sexually Dimorphic Brain FunctionR01MH047538 · NIMH · UNIVERSITY OF MASSACHUSETTS AMHERST · PI DE VRIES, GEERT J. · 1991 to 2013
$3.2M
Cell Death and Neural Sex DifferencesR01MH068482 · NIMH · UNIVERSITY OF MASSACHUSETTS AMHERST · PI FORGER, NANCY G · 2004 to 2013
$2.9M
The Neural Basis of Sexually Dimorphic Brain FunctionK02MH001497 · NIMH · UNIVERSITY OF MASSACHUSETTS AMHERST · PI DE VRIES, GEERT J · 1998 to 2007
$930k
Sexual Differentiation of the Nervous SystemK02MH072825 · NIMH · UNIVERSITY OF MASSACHUSETTS AMHERST · PI FORGER, NANCY G · 2005 to 2009
$626k
NIMH NIH HHS K02 MH001497NIMH NIH HHS K02 MH01497NIMH NIH HHS K02 MH072825NIMH NIH HHS R01 MH047538NIMH NIH HHS R01 MH068482NIMH NIH HHS R01 MH47538
6 · The paper itself

Abstract

In most vertebrates studied, males have more vasopressin (VP) cells in the bed nucleus of the stria terminalis, or homologous vasotocin cells in nonmammalian species, than females. Previous research excluded differential cell birth and migration as likely mechanisms underlying this difference, leaving just differential cell death and phenotypic differentiation of existing cells. To differentiate between these remaining possibilities, we compared VP cell number in wild-type mice vs. mice overexpressing the anti-cell death factor, Bcl-2. All animals were gonadectomized in adulthood and given testosterone capsules. Three weeks later, brains were processed for in situ hybridization to identify VP cells. Bcl-2 overexpression increased VP cell number in both sexes but did not reduce the sex difference. We repeated this experiment in mice with a null mutation of the pro-cell death gene, Bax, and obtained similar results; cell number was increased in Bax(-/-) mice of both sexes, but males had about 40% more VP cells, regardless of Bax gene status. Taken together, cell death is unlikely to account for the sex difference in VP cell number, leaving differentiation of cell phenotype as the most likely underlying mechanism. We also used immunocytochemistry to examine VP projections in Bcl-2-overexpressing mice. As expected, males showed denser VP-immunoreactive fibers than females in the lateral septum, a projection area of the bed nucleus of the stria terminalis. However, even though Bcl-2 overexpression increased VP cell number, it did not affect fiber density. Thus, a compensatory mechanism may control total septal innervation regardless of the number of contributing cells.

Indexed as

AnimalsBrainCell CountCell DeathFemaleGenes, bcl-2MaleMiceMice, Inbred C57BLMice, TransgenicNeuronsPhenotypeRNA, MessengerSex DifferentiationVasopressinsRNA, MessengerVasopressins

Identifiers

PMID18499746
PMCPMC2553370
OpenAlexW1968958506

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.