Effects of electromagnetic radiation on RAF/MEK/ERK signaling pathway in rats hippocampus / 中国应用生理学杂志
Chinese Journal of Applied Physiology
; (6): 186-189, 2009.
Article
en Zh
| WPRIM
| ID: wpr-356301
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>AIM</b>To study the development of changes for signaling molecules related to Raf/MEK/ERK pathway in hippocampus of rats after electromagnetic radiation, and investigate the mechanisms of radiation injury.</p><p><b>METHODS</b>Rats were exposed to X-HPM, S-HPM and EMP radiation source respectively, and animal model of electromagnetic radiation was established. Western blot was used to detect the expression of Raf-1, phosphorylated Raf-1 and phospholylated ERK.</p><p><b>RESULTS</b>The expression of Raf-1 down-regulated during 6 h-14 d after radiation, most significantly at 7 d, and recovered at 28 d. There was no significant difference between the radiation groups. The expression of phosphorylated Raf-1 and phosphorylated ERK both up-regulated at 6 h and 7 d after radiation, more significantly at 6 h, and the two microwave groups were more serious for phosphorylated ERK. During 6 h-14 d after S-HPM radiation, the expression of phosphorylated Raf-1 increased continuously, but phosphorylated ERK changed wavily, 6 h and 7 d were expression peak.</p><p><b>CONCLUSION</b>Raf/MEK/ERK signaling pathway participates in the hippocampus injury induced by electromagnetic radiation. The excessive activation of ERK pathway may result in the apoptosis and death of neurons, which is the important mechanism of recognition disfunction caused by electromagnetic radiation.</p>
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Fosforilación
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Efectos de la Radiación
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Distribución Aleatoria
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Ratas Wistar
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Apoptosis
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Proteínas Proto-Oncogénicas c-raf
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Quinasas Quinasa Quinasa PAM
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Sistema de Señalización de MAP Quinasas
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Quinasas MAP Reguladas por Señal Extracelular
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Radiación Electromagnética
Límite:
Animals
Idioma:
Zh
Revista:
Chinese Journal of Applied Physiology
Año:
2009
Tipo del documento:
Article