Relatively low levels of calpain expression in juvenile rat correlate with less neuronal apoptosis after spinal cord injury.
Exp Neurol
; 187(2): 529-32, 2004 Jun.
Article
en En
| MEDLINE
| ID: mdl-15144879
ABSTRACT
Approximately 5% of spinal cord injuries in the US occur in patients younger than 16 years. These young patients have an increased mortality within the 24 h after trauma but have a greater capacity for functional recovery than adults, suggesting age-related differences in injury tolerance. Unfortunately, the response of the developing cord to secondary injury has not been thoroughly investigated. Calpain, a Ca(2+)-dependent protease, has been implicated in the pathogenesis of spinal cord injury (SCI) in rats. Our current investigation revealed that following SCI, calpain upregulation was qualitatively less in the 21-day-old rats than in adult rats, as shown by immunofluorescent labeling. Decreased levels of TUNEL+ neurons were also noted in juvenile rat spinal cord, indicating that the developing cord may have an increased resistance to injury.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Traumatismos de la Médula Espinal
/
Calpaína
/
Apoptosis
/
Neuronas
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Exp Neurol
Año:
2004
Tipo del documento:
Article
País de afiliación:
Estados Unidos