Different time-courses of i.v. lidocaine effect on ganglionic and spinal units in neuropathic rats.
Neuroreport
; 5(8): 873-6, 1994 Apr 14.
Article
em En
| MEDLINE
| ID: mdl-8061286
ABSTRACT
The effect of intravenous lidocaine (4 mg kg-1) on ganglionic and spinal neuronal hyperactivity following sciatic chronic constriction injury (CCI) was studied in anaesthetized and curarized rats. A significant difference in the time course and magnitude of the lidocaine effect on the two neuronal populations was found. Longer lasting and more potent inhibitory effects on the dorsal horn neurones in comparison with ganglionic neurones were observed. By contrast the magnitude and time course of the inhibitory effects were highly comparable in dorsal horn neurones before and after acute rhizotomy. The results indicate that peripheral and central effects of lidocaine are not sequentially related. The likelihood that lidocaine inhibition at central sites may have a role in its analgesic effect, at least in the neuropathic model, is discussed.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Medula Espinal
/
Gânglios Sensitivos
/
Lidocaína
/
Doenças do Sistema Nervoso
Limite:
Animals
Idioma:
En
Ano de publicação:
1994
Tipo de documento:
Article