Evidence map›Paper›PMID 24189140›Full record

ArticleEndocrinology2014

Gonadal steroid modulation of sleep and wakefulness in male and female rats is sexually differentiated and neonatally organized by steroid exposure.

Danielle M Cusmano, Maria M Hadjimarkou, Jessica A Mong

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

40 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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 2 countries.

Danielle M CusmanoProgram in Neuroscience (D.M.C., J.A.M.) and Department of Pharmacology (D.M.C., M.M.H., J.A.M.), University of Maryland School of Medicine, Baltimore, Maryland 21201; and Department of Psychology (M.M.H.), University of Nicosia, 1700 Nicosia, Cyprus.
Maria M Hadjimarkou
Jessica A Mong
University of Maryland, Baltimore · US

Funding

Cellular Mechanisms for the hormonal Modulation of SleepR01HL085037 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI MONG, JESSICA AURORA · 2005 to 2009
$1.6M
Modulation of REM sleep circuitry and involvement of hypocretin in female ratsF31AG043329 · NIA · UNIVERSITY OF MARYLAND BALTIMORE · PI CUSMANO, DANIELLE M. · 2012 to 2013
$72k
NHLBI NIH HHS R01 HL085037NHLBI NIH HHS R01HL85037NIA NIH HHS F31 AG043329NIA NIH HHS F31AG043329
6 · The paper itself

Abstract

The paucity of clinical and preclinical studies investigating sex differences in sleep has resulted in mixed findings as to the exact nature of these differences. Although gonadal steroids are known to modulate sleep in females, less is known about males. Moreover, little evidence exists concerning the origin of these sex differences in sleep behavior. Thus, the goal of this study was to directly compare the sensitivity of sleep behavior in male and female Sprague Dawley rats to changes in the gonadal steroid milieu and to test whether the sex differences in sleep are the result of brain sexual differentiation or differences in circulating gonadal steroids. Here we report the magnitude of change in sleep behavior induced by either estradiol (E2) or testosterone (T) was greater in females compared with males, suggesting that sleep behavior in females is more sensitive to the suppressive effects of gonadal steroids. Furthermore, we demonstrated that the organizational effects of early gonadal steroid exposure result in male-like responsivity to gonadal steroids and directly alter the activity of the ventrolateral preoptic area (VLPO), an established sleep-promoting nucleus, in adult masculinized females. Moreover, the nonaromatizable androgen dihydrotestosterone did not suppress sleep in either males or females, suggesting that the T-mediated effect in females was due to the aromatization of T into E2. Together our data suggest that, like sex behavior, sex differences in sleep follow the classical organizational/activational effects of gonadal steroids.

Indexed as

AnimalsDihydrotestosteroneElectroencephalographyElectromyographyEstradiolFemaleGonadal Steroid HormonesMalePreoptic AreaProto-Oncogene Proteins c-fosRatsRats, Sprague-DawleySex FactorsSleepTestosteroneWakefulnessDihydrotestosteroneEstradiolGonadal Steroid HormonesProto-Oncogene Proteins c-fosstanolone benzoateTestosterone

Identifiers

PMID24189140
PMCPMC3868804
OpenAlexW2157428152

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.