Effects of REM sleep restriction during pregnancy on rodent maternal behavior
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
;
37(4): 303-309, Oct.-Dec. 2015. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-770001
ABSTRACT
Objective: To evaluate the effects of sleep restriction during pregnancy on maternal care and maternal aggression in a rodent model. Methods: Twenty-three female Wistar rats were assigned to one of two groups: control (n=12) or sleep restriction (n=11) during the entire pregnancy. At the fifth postpartum day, the animals were subjected to the resident-intruder paradigm and to the pup retrieval test. Results: Sleep restriction during pregnancy had no direct effects on maternal care. Regarding aggressive behavior, defensive aggression was increased by sleep loss, with a lower responsiveness threshold to hostile environmental stimuli. Sleep deprivation during gestation also reduced self-grooming behavior. Conclusion: Taking increased self-grooming as a behavioral correlate of anxiety in rodents, this study provides evidence that lactating dams were in a condition of reduced anxiety. From an adaptive perspective, this pattern of stress response may function to ensure proper maternal behavior, thereby guaranteeing the survival and viability of the litter. Under a translational perspective, the present article confronts the importance of biological and adaptive features to rodent maternal behavior with the relevance of sociocultural factors to the human mother-infant relationship and to the onset of postpartum depression.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Privación de Sueño
/
Embarazo
/
Conducta Materna
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
/
Embarazo
Idioma:
Inglés
Revista:
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
Asunto de la revista:
Psiquiatria
Año:
2015
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal de São Paulo (UNIFESP)/BR
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