[Expression of cathepsin-B and -D in rat's brain after traumatic brain injury].
Fa Yi Xue Za Zhi
; 22(6): 404-6, 410, 2006 Dec.
Article
en Zh
| MEDLINE
| ID: mdl-17285857
ABSTRACT
OBJECTIVE:
To study the expression of cathepsin-B and -D in different time point after traumatic brain injury.METHODS:
Traumatic brain injury (TBI) model was established on rats, cathepsin-B and cathepsin-D immunofluorescence staining and confocal microscope analysis were performed. Positive cells were counted by confocal microscope and image analysis techniques were used to determine the morphological changes in each group.RESULTS:
Immunofluorescence staining results showed that cathepsin-B was activated 1 hour after TBI while cathepsin-D was not activated until 12hour after TBI. Both of them got to their peak during 4 to 8days, and kept a high level of activating 32days after TBI. Cathepsin-B and -D positive cells did not merge with caspase-3 positive cells until 6 h after TBI.CONCLUSION:
Cathepsin-B and -D could be the diagnostic markers of TBI and can estimating time course of lateral TBI. They blocked caspase-3 activation at the beginning period after TBI and started to promote cell death with caspase-3 6 h after TBI.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Encéfalo
/
Lesiones Encefálicas
/
Catepsina B
/
Catepsina D
/
Caspasa 3
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
Zh
Revista:
Fa Yi Xue Za Zhi
Asunto de la revista:
JURISPRUDENCIA
Año:
2006
Tipo del documento:
Article
País de afiliación:
China