Title
Long-lasting effects of perinatal asphyxia on exploration, memory and incentive downshift
Date Issued
01 October 2011
Access level
open access
Resource Type
journal article
Author(s)
Galeano P.
Blanco Calvo E.
Madureira de Oliveira D.
Cuenya L.
Kamenetzky G.
Mustaca A.
Giraldez-Alvarez L.
Milei J.
Capani F.
Stanford University
Publisher(s)
Wiley-Blackwell
Abstract
Perinatal asphyxia remains as one of the most important causes of death and disability in children, without an effective treatment. Moreover, little is known about the long-lasting behavioral consequences of asphyxia at birth. Therefore, the main aim of the present study was to investigate the motor, emotional and cognitive functions of adult asphyctic rats. Experimental subjects consisted of rats born vaginally (CTL), by cesarean section (C+), or by cesarean section following 19. min of asphyxia (PA). At three months of age, animals were examined in a behavioral test battery including elevated plus maze, open field, Morris water maze, and an incentive downshift procedure. Results indicated that groups did not differ in anxiety-related behaviors, although a large variability was observed in the asphyctic group and therefore, the results are not completely conclusive. In addition, PA and C+ rats showed a deficit in exploration of new environments, but to a much lesser extent in the latter group. Spatial reference and working memory impairments were also found in PA rats. Finally, when animals were downshifted from a 32% to a 4% sucrose solution, an attenuated suppression of consummatory behavior was observed in PA rats. These results confirmed and extended those reported previously about the behavioral alterations associated with acute asphyxia around birth. © 2011 ISDN.
Start page
609
End page
619
Volume
29
Issue
6
Language
English
OCDE Knowledge area
Neurociencias Psicología
Scopus EID
2-s2.0-80052401819
PubMed ID
Source
International Journal of Developmental Neuroscience
ISSN of the container
1873474X
Sponsor(s)
This work was supported by National Scientific and Technical Research Council (CONICET, Argentina), National Agency for Scientific and Technological Promotion (ANPCyT, Argentina) and University of Buenos Aires (to F.C. and A.E.M.) grants, First University International Cooperation for Development Project and Proper Research Program of the University of Malaga (to E.B.C.), Grant PCI-A/023328/09 (to E.B.C. and F.C.) from the Spanish Ministry of Foreign Affairs and Cooperation (MAEC) and Spanish Agency for Cooperation and International Development (AECID) . Eduardo Blanco Calvo is a recipient of a postdoctoral fellowship (Juan de la Cierva) from the Ministry of Science and Innovation (MICINN, Spain). Pablo Galeano and Lucas Cueya are fellowship holders from the National Scientific and Technical Research Council (CONICET, Argentina). We thank Jorge Joaquín Llambías for helpful English revision and Antonio Berrocal Salva for the illustration of perinatal asphyxia induction.
Sources of information: Directorio de Producción Científica Scopus