Title
Effects of sleep restriction during pregnancy on the mother and fetuses in rats
Date Issued
01 March 2016
Access level
metadata only access
Resource Type
research article
Author(s)
Goularte J.
Hoefel A.
de Castro A.
Kucharski L.
da Rosa Araujo A.
Lucion A.
Universidade Federal do Rio Grande do Sul
Abstract
The present study aimed to analyze the effects of sleep restriction (SR) during pregnancy in rats. The following three groups were studied: home cage (HC pregnant females remained in their home cage), Sham (females were placed in tanks similar to the SR group but with sawdust) and SR (females were submitted to the multiple platform method for 20 h per day from gestational days (GD) 14 to 20). Plasma corticosterone after 6 days of SR was not different among the groups. However, the relative adrenal weight was higher in the SR group compared with the HC group, which suggests possible stress impact. SR during pregnancy reduces the body weight of the female but no changes in liver glycogen, cholesterol and triglycerides, and muscle glycogen were detected. On GD 20, the fetuses of the females submitted to SR exhibited increased brain derived neurotrophic factor (BDNF) in the hippocampus, which indicates that sleep restriction of mothers during the final week of gestation may affect neuronal growth factors in a fetal brain structure, in which active neurogenesis occurs during the deprivation period. However, no changes in the total reactive oxygen species (ROS) in the cortex, hippocampus, or cerebellum of the fetuses were detected. SR females showed no major change in the maternal behavior, and the pups' preference for the mother's odor on postpartum day (PPD) 7 was not altered. On GD 20, the SR females exhibited increased plasma prolactin (PRL) and oxytocin (OT) compared with the HC and Sham groups. The negative outcomes of sleep restriction during delivery could be related, in part, to this hormonal imbalance. Sleep restriction during pregnancy induces different changes compared with the changes described in males and affects both the mother and offspring.
Start page
66
End page
76
Volume
155
Language
English
OCDE Knowledge area
Zoología, Ornitología, Entomología, ciencias biológicas del comportamiento
Scopus EID
2-s2.0-84965076085
PubMed ID
Source
Physiology and Behavior
ISSN of the container
00319384
Sponsor(s)
This work was supported by CAPES and FAPERGS ( 10/0018-3 CAPES/PROAP ). We are very grateful to Thiago Pereira Henriques, Rafael Cáceres Corrêa, Cátia Nunes Corrêa, Amanda Brondani Mucellini, Ana Carla Araújo da Cunha, and Enver Oruro Puma for their technical assistance in data collection. We thank Professor Gilberto Sanvitto for his important suggestions for the development of this work.
Sources of information: Directorio de Producción Científica Scopus