Cited by 163Sexual function and dysfunction studiesHypothalamic control of reproductive hormonesSexuality, Behavior, and Technology

Individual differences in male rat ejaculatory behaviour: searching for models to study ejaculation disorders

Pattij, Tommy, De Jong, Trynke R., Uitterdijk, Andre, Waldinger, Marcel D., Veening, Jan G., Cools, Alexander R., Van Der Graaf, Piet Hein, Olivier, Berend·2005·European Journal of Neuroscience

Abstract

In addition to investigating sexual function in rats that display normal ejaculatory behaviour, studying rats that are either 'hyposexual' or 'hypersexual' may provide important insights into the aetiology of ejaculatory dysfunctions in men, such as premature and retarded ejaculation. To this end, rats were matched into groups of 'sluggish', 'normal' and 'rapid' ejaculators based on their ejaculation frequencies displayed in a series of weekly sexual behaviour tests. Selecting rats on this parameter revealed large and stable differences in other parameters of sexual behaviour as well, including ejaculation latency and mount frequency but not intromission frequency and mount latency, putative indices of sexual motivation. Neuroanatomically, Fos immunoreactivity as a measure of neuronal activation was increased in rapid ejaculators compared with sluggish ejaculators in ejaculation-related brain areas, presumably associated with the differences in ejaculatory behaviour. Although the total number of oxytocin neurones within subregions of the hypothalamus did not differ between groups, in the supraoptic nucleus of the hypothalamus more oxytocin neurones were activated in rapid ejaculators compared with the other groups. Apart from the differences observed in ejaculatory behaviour, groups did not differ with respect to their locomotor activity and approach-avoidance behaviour as measured in the elevated plus-maze. Finally, apomorphine-induced stereotypy was similar in sluggish and…

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Crossref · 10.1111/j.1460-9568.2005.04252.x

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Authors
Pattij, T., De Jong, T. R., Uitterdijk, A., Waldinger, M. D., Veening, J. G., Cools, A. R., Van Der Graaf, P. H., & Olivier, B.
Affiliations
  • Utrecht University (NL)
  • Radboud University Medical Center (NL)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2005-08
Volume
22
Issue
3
Pages
724-734
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2004544166
Cited by
163
References
61
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 6 · 2022: 6 · 2021: 4 · 2020: 7 · 2019: 6 · 2018: 4 · 2017: 2 · 2016: 8 · 2015: 10 · 2014: 8 · 2013: 10 · 2012: 12
FWCI
6.22
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
Pfizer
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Sexual function and dysfunction studies
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Social Sciences › Psychology › Clinical Psychology › Sexuality, Behavior, and Technology
Keywords
individual differences, premature ejaculation, anejaculation, sexual dysfunction, ejaculation latency, Fos-like immunoreactivity, oxytocin neurons, supraoptic nucleus, hypothalamus, dopamine, stereotypy, sexual motivation, male rats
MeSH terms
Analysis of Variance, Animals, Apomorphine, Behavior, Animal, Brain, Cell Count, Disease Models, Animal, Drug Interactions, Ejaculation, Exploratory Behavior, Female, Immunohistochemistry, Male, Oxytocin, Reaction Time, Sexual Behavior, Animal, Sexual Dysfunction, Physiological, Stereotyped Behavior, Oncogene Proteins v-fos, Rats, Wistar, Serotonin Receptor Agonists, 8-Hydroxy-2-(di-n-propylamino)tetralin, Dopamine Agonists, Maze Learning, Rats

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