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Título : Prenatal protein malnutrition affects the density of GABAergic interneurons during hippocampus development in rats
Creador: Gonzalez Maciel, Angelica
Nivel de acceso: Open access
Palabras clave : Desnutrición Proteica - patología
Neuronas GABAérgicas - patología
Neuronas GABAérgicas - citología
Hipocampo - anatomía & histología
Hipocampo - embriología
Hipocampo - patología
Giro Dentado - anatomía & histología
Giro Dentado - patología
Giro Dentado - embriología
Protein Malnutrition - pathology
GABAergic Neurons - pathology
GABAergic Neurons - cytology
Hippocampus - anatomy & histology
Hippocampus - embryology
Hippocampus - patology
Dentate Gyrus - anatomy & histology
Dentate Gyrus - pathology
Dentate Gyrus - embryology
Cornu Ammonis
Fascia Dentata
Hipocampo
desnutrición prenatal de proteínas
Neuronas GABAérgicas
Cornus ammonis
Fascia dentata
Hippocampus
Prenatal protein malnutrition
GABAergic neurons
Descripción : Background: Prenatal protein malnutrition disrupts the pattern of maturation and development of the hippocampus and its neuroanatomy and increases inhibition of the granular cell layer of the fascia dentata. If local gamma-aminobutyric acid interneurons are partly responsible for inhibition of the hippocampus, it is reasonable to assume that there may be an increase in the gamma-aminobutyric acid cell population of prenatal protein malnutrition rats. Objective: This experimental study was conducted to ascertain the effects of prenatal protein malnutrition on the density of GABAergic interneurons at the cornus ammonis and fascia dentata in rats. Methods: Animals were investigated under two nutritional conditions: (i) prenatal protein malnutrition group fed 6% protein, and (ii) well-nourished control group fed 25% protein. Using an antibody for gamma-aminobutyric acid, immunoreactive cells (GABAergic) were assessed in the rostral-caudal direction of the dorsal hippocampus at four levels. Results: (i) In 30-day-old rats with prenatal malnutrition, the fascia dentata had an average of 27% more GABAergic cells than the control group; this higher amount was not detectable at 90 days, (ii) There was a significant 18% increase in GABAergic neurons at level 1 of the cornus ammon/s at 90 days of age. Conclusions: There was an increase in the population of interneurons in the fascia dentata and cornus ammonis in prenatal protein malnutrition rats. We conclude that prenatal hypoprotein malnutrition produces changes at 30 days in the fascia dentata. Results suggest that prenatal malnutrition also produces a delay in the programmed chronology of gamma-aminobutyric acid interneurons. Finally, in cornus ammonis, at 90 days of age, prenatal protein malnutrition showed an increase only at level 1; this effect may be evidenced in the long term, despite postnatal rehabilitation.
Colaborador(es) u otros Autores: Romero-Velázquez Rosa María
Reynoso-Robles Rafael
Uribe-Escamilla Rebeca
Vargas-Sánchez Javier
De La Garza-Montaño Paloma
Alfaro-Rodríguez Alfonso
Fecha de publicación : 2015
Tipo de publicación: Artículo
Formato: pdf
Fuente: Revista de Investigación Clínica 67(5):296 - 303
URI : http://repositorio.pediatria.gob.mx:8180/handle/20.500.12103/2711
Idioma: eng
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