The Cross Effects of Needle Electrical Stimulation according to Electrode Placements on the Analgesia in Arthritic Rat Model
Journal of the Korean Academy of Rehabilitation Medicine
;
: 143-149, 2007.
Artículo
en Coreano
| WPRIM
| ID: wpr-724454
ABSTRACT
OBJECTIVE:
To investigate the analgesic effect of needle electrical stimulation (NES) according to the electrode placement in acute arthritic rat model.METHOD:
Male Sprague-Dawley rats (120 rats, 250+/-50 g) were injected with a mixture of 3% carrageenan and 3% kaolin into the right knee joint. Rats were randomly assigned into one of four groups Group I, control group (n=30); Group II, arthritic limb-induced control group (n=30); Group III, NES application group on the ipsilateral arthritic limb (n=30); Group IV, NES application group on the contralateral arthritic limb (n=30). We applied the NES (2 Hz, 200micro s, 20 min) to group III and IV. We assessedthe change of paw withdrawal latency (PWL) and the immunoreactivity of c-fos by immunohistochemistry at baseline, 4, 8, 12 and 24 hours after induction of arthritis.RESULTS:
NES was more effective in Group III and IV than group II 8 hours after the induction of arthritis (p < 0.001) based on the results of PWLs and c-fos immunoreactivity. The analgesic effects of Group III were greater than those of group IV (p < 0.001).CONCLUSION:
Contralateral NES on arthritic limb reduced pain in arthritic rat model as effectively as ipsilateral NES.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Artritis
/
Inmunohistoquímica
/
Carragenina
/
Ratas Sprague-Dawley
/
Modelos Animales
/
Estimulación Eléctrica
/
Electrodos
/
Extremidades
/
Analgesia
/
Caolín
Límite:
Animales
/
Humanos
/
Masculino
Idioma:
Coreano
Revista:
Journal of the Korean Academy of Rehabilitation Medicine
Año:
2007
Tipo del documento:
Artículo
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