Loading…
Sex differences on spontaneous alternation in prepubertal rats: implications for an animal model of obsessive-compulsive disorder
Sex differences in the prevalence of obsessive-compulsive disorder (OCD) in prepubertal children have been described. Deficits on spontaneous alternation behavior (SAB) have been proposed as an animal model of OCD. Objectives: To explore possible sex differences in the ontogeny of SAB and in the eff...
Saved in:
Published in: | Progress in neuro-psychopharmacology & biological psychiatry 2004-07, Vol.28 (4), p.687-692 |
---|---|
Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Sex differences in the prevalence of obsessive-compulsive disorder (OCD) in prepubertal children have been described. Deficits on spontaneous alternation behavior (SAB) have been proposed as an animal model of OCD.
Objectives: To explore possible sex differences in the ontogeny of SAB and in the effect of the 5-HT
1A agonist, 8-OH-hydroxy-2 (di-
n-propylamino)-tetralin (8-OH-DPAT) in an animal model of OCD.
Methods: The ontogeny of SAB and the perseveration produced by 8-OH-DPAT were compared between male and female prepubertal rats.
Results: Males alternated their arm choose from postnatal day 32 onwards, while females perseverated in the chosen arm until postnatal day 38. The mean number of repetitive choices remained close to 1 in males from postnatal day 23 onwards, but females showed a mean number of repetitive choices higher than 1.5 until the end of the test. The 8-OH-DPAT (0.125, 0.5 and 2.0 mg/kg, 15 min) produced perseveration in males but not in females.
Conclusions: These data show important sex differences in the ontogeny of SAB and the effect of 8-OH-DPAT in a model of OCD. Such differences could be relevant for the sex differences in the prevalence of childhood OCD. |
---|---|
ISSN: | 0278-5846 1878-4216 |
DOI: | 10.1016/j.pnpbp.2004.05.005 |