Repetitive transient forebrain ischemia in gerbils: delayed neuronal damage in the substantia nigra reticulata.
Brain Res
; 574(1-2): 120-4, 1992 Mar 06.
Article
em En
| MEDLINE
| ID: mdl-1638388
ABSTRACT
Repetitive cerebral ischemia results in severe neuronal damage in multiple regions of the brain including the hippocampus, striatum, thalamus, medial geniculate nucleus and the substantia nigra reticulata (SNr). We postulated that the damage in the SNr was delayed, resulting from a loss of striatal inhibitory input. We used the gerbil model of repetitive ischemia (3 min times 2 and 3 min times 3) to evaluate the extent of neuronal damage at 2, 3, 5 and 7 days after the ischemic insult. Silver degeneration stain was used for histological evaluation. Our results indicate that damage in the SNr begins after 48 h and is maximum at 7 days. This delay in onset of damage offers a window for pharmacological protection.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Substância Negra
/
Ataque Isquêmico Transitório
/
Prosencéfalo
/
Degeneração Neural
/
Neurônios
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
1992
Tipo de documento:
Article