Effects of electro-acupuncture on NT-4 expression in spinal dorsal root ganglion and associated segments of the spinal dorsal horn in cats subjected to adjacent dorsal root ganglionectomy.
Neurosci Lett
; 450(2): 158-62, 2009 Jan 30.
Article
em En
| MEDLINE
| ID: mdl-18838104
ABSTRACT
It is well known that neuroplasticity occurs in the central nervous system in response to injury. Electro-acupuncture (EA) may also promote neuroplasticity. But little is known about the underlying molecular mechanisms for the beneficial effects of EA. This study investigated the effects of EA on neurotrophin-4 (NT-4) expression in L(6) spinal dorsal root ganglion (DRG) and associated segments of the spinal dorsal horn in cats subjected to unilateral removal of L(1)-L(5) and L(7)-S(2) DRG. NT-4 protein was normally present in the cytoplasm of the L(6) DRG neurons and L(3) and L(6) spinal dorsal horn neurons and glia. Adjacent ganglionectomy leads to a significant decrease in NT-4 expression in the L(6) DRG, but no change in the spinal dorsal horn. Following EA treatment a significant increase occurred in the L(6) DRG at 14 days post-operation (dpo) as well as the L(6) cord segment at 7 and 14 dpo. These findings pointed to a possible association between NT-4 expression and EA promoted spinal cord plasticity in adult cats subjected to partial ganglionectomy.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Eletroacupuntura
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Expressão Gênica
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Gânglios Espinais
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Fatores de Crescimento Neural
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article