Evidence map›Paper›PMID 17949414›Full record

ArticleJournal of neurochemistry2008

Rapid estrogen regulation of DHEA metabolism in the male and female songbird brain.

Devaleena S Pradhan, Yan Yu, Kiran K Soma

Open access · greenAbstract read
In one paragraph

Article in Journal of neurochemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
11.6field-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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Dehydroepiandrosterone (DHEA) as a tool for conservation.Environmental monitoring and assessment · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. 3β-HSD expression in the CNS of a manakin and finch.General and comparative endocrinology · 2018
    Article
  7. On the role of brain aromatase in females: why are estrogens produced locally when they are available systemically?Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2018
    Review
  8. Article
  9. Article
  10. Sex steroid profiles and pair-maintenance behavior of captive wild-caught zebra finches (Taeniopygia guttata).Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2016
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. New biosynthesis and biological actions of avian neurosteroids.Journal of experimental neuroscience · 2013
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review
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

3 authors at 1 institution in 1 country.

Devaleena S PradhanDepartment of Zoology, University of British Columbia, Vancouver, British Columbia, Canada. pradhan@zoology.ubc.ca
Yan Yu
Kiran K Soma
University of British Columbia · CA

Funding

CIHR 67087
6 · The paper itself

Abstract

In the songbird brain, dehydroepiandrosterone (DHEA) is metabolized to the active and aromatizable androgen androstenedione (AE) by 3beta-hydroxysteroid dehydrogenase/Delta5-Delta4 isomerase (3beta-HSD). Thus, brain 3beta-HSD plays a key role in regulating the steroidal milieu of the nervous system. Previous studies have shown that stress rapidly regulates brain 3beta-HSD activity in a sex-specific manner. To elucidate endocrine regulation of brain 3beta-HSD, we asked whether 17beta-estradiol (E(2)) regulates DHEA metabolism in adult zebra finch (Taeniopygia guttata) and whether there are sex-specific effects. Brain tissue was homogenized and centrifuged to obtain supernatant lacking whole cells and cell nuclei. Supernatant was incubated with [(3)H]DHEA and radioinert E(2)in vitro. Within only 10 min, E(2) significantly reduced 3beta-HSD activity in both male and female brain. Interestingly, the rapid effects of E(2) were more pronounced in females than males. These are the first data to show a rapid effect of estrogens on the songbird brain and suggest that rapid estrogen effects differ between male and female brains.

Indexed as

Sex CharacteristicsAnimalsBrainChromatography, High Pressure LiquidChromatography, Thin LayerDehydroepiandrosteroneDihydrotestosteroneDose-Response Relationship, DrugEnzyme InhibitorsEstradiolEstrogensFemaleFinchesMaleMultienzyme ComplexesProgesterone Reductase3 beta-hydroxysteroid oxidoreductase-delta(5) 3-ketosteroid isomeraseDehydroepiandrosteroneDihydrotestosteroneEnzyme InhibitorsEstradiolestradiol 3-benzoateEstrogensMultienzyme ComplexesProgesterone ReductaseSteroid Isomerasestrilostane

Identifiers

PMID17949414
PMCPMC2954188
OpenAlexW2060765720

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.