Sex and lineage interact to predict behavioral effects of chronic adolescent stress in rats.
Behav Brain Res
; 248: 57-61, 2013 Jul 01.
Article
en En
| MEDLINE
| ID: mdl-23583793
ABSTRACT
Neuropsychiatric disorders often derive from environmental influences that occur at important stages of development and interact with genetics. This study examined the effects of stress during adolescence in rats selectively bred for different behavioral responses to stress. The effects of chronic adolescent stress were compared between rats selected for susceptibility to reduced activity following acute stress (Swim-test Susceptible rats) and rats resistant to activity reduction after acute stress (Swim-test Resistant rats). Consistent with lineage, exposure to chronic adolescent stress increased swim-test activity of the Swim-test Resistant rats while tending to reduce activity of the Swim-test Susceptible rats. Consistent with the increased activity demonstrated post-stress in the swim test, chronic adolescent stress increased total activity in the open field for Swim-test Resistant rats. Indicative of anhedonia, chronic adolescent stress exposure decreased sucrose consumption in both male and female Swim-test Resistant rats but only in female Swim-test Susceptible rats. Although chronic stress induced changes in behavior across both breeding lines, the precise manifestation of the behavioral change was dependent on both breeding line and sex. Collectively, these data indicate that selective breeding interacts with chronic stress exposure during adolescence to dictate behavioral outcomes.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Estrés Psicológico
/
Natación
/
Conducta Animal
/
Caracteres Sexuales
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
Behav Brain Res
Año:
2013
Tipo del documento:
Article
País de afiliación:
Estados Unidos