Antinociceptive Effect of Intraperitoneally Administered 5,5-dimethyl-1-pyrroline N-oxide on Formalin Induced Nociception in Rats / 대한마취과학회지
Korean Journal of Anesthesiology
; : S35-S39, 2008.
Article
em En
| WPRIM
| ID: wpr-82542
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND: Reactive oxygen species (ROS) is known to be involved in chronic and persistent pain.By using the ROS scavenger 5,5-dimethyl-1-pyrroline N-oxide (DMPO), we studied the effects of ROS on formalin-induced nociception in rats. METHODS: 5% formalin was injected in the left hind paw after intraperitoneal injection of saline or various doses of DMPO (10 mg/kg, 30 mg/kg, 100 mg/kg).Number of flinches was measured in a 5 minute interval for 1 hour. RESULTS: Formalin injected into the left hind paw induced a biphasic nociceptive behaviour. Intraperitoneal injection of DMPO diminished nociceptive behaviors dose-dependently during phase 2 but not phase 1. CONCLUSIONS: ROS might be involved in central sensitization and DMPO, a ROS scavenger, posses antinociceptive property in rats subjected to formalin induced hyperalgesia.
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Texto completo:
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Índice:
WPRIM
Assunto principal:
Medição da Dor
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Espécies Reativas de Oxigênio
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Nociceptividade
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Sensibilização do Sistema Nervoso Central
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Formaldeído
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Injeções Intraperitoneais
Limite:
Animals
Idioma:
En
Revista:
Korean Journal of Anesthesiology
Ano de publicação:
2008
Tipo de documento:
Article