Consulta: subjectFacets:"Splenium"
Registros recuperados: 2
Data/hora: 04/06/2024 16:24:52

Regional density of glial cells in the rat corpus callosum
Provedor de dados: 48
Autores: Reyes-Haro,Daniel; Mora-Loyola,Ernesto; Soria-Ortiz,Berenice; García-Colunga,Jesús.
Axons and glial cells are the main components of white matter. The corpus callosum (CC) is the largest white matter tract in mammals; in rodents, 99% of the cells correspond to glia after postnatal day 5 (P5). The area of the CC varies through life and regional differences related to the number of axons have been previously described. Whether glial cell density varies accordingly is unknown; thus the aim of this study was to estimate glial cell density for the genu, body and splenium -the three main regions of CC-, of P6 and P30 rats. Here we report that the density of CC glial cells reduced by ~10% from P6 to P30. Even so, the density of astrocytes showed a slight increase (+6%), probably due to differentiation of glioblasts. Interestingly, glial cell...
Tipo: Journal article
Palavras-chave: Astrocytes; Corpus callosum; Genu; Glial cells; Splenium.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000100004

Anatomy of corpus callosum in prenatally malnourished rats
Provedor de dados: 48
Autores: Olivares,Ricardo; Morgan,Carlos; Pérez,Hernán; Hernández,Alejandro; Aboitiz,Francisco; Soto-Moyano,Rubén; Gil,Julio; Ortiz,Alexis; Flores,Osvaldo; Gimeno,Miguel; Laborda,Jesús.
The effect of prenatal malnutrition on the anatomy of the corpus callosum was assessed in adult rats (45-52 days old). In the prenatally malnourished animals we observed a significant reduction of the corpus callosum total area, partial areas, and perimeter, as compared with normal animals. In addition, the splenium of corpus callosum (posterior fifth) showed a significant decrease of fiber diameters in the myelinated fibers without changing density. There was also a significant decrease in diameter and a significant increase in density of unmyelinated fibers. Measurements of perimeter's fractal dimensions from sagittal sections of the brain and corpus callosum did not show significant differences between malnourished and control animals. These findings...
Tipo: Journal article
Palavras-chave: Corpus callosum; Prenatal malnutrition; Rat; Splenium.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000100012