Frequency selectivity on aspirin-induced hearing loss in rats with auditory stimulus-induced conditioned suppression.
J Vet Med Sci
; 59(10): 879-84, 1997 Oct.
Article
en En
| MEDLINE
| ID: mdl-9362035
ABSTRACT
The conditioned suppression technique was employed to examine the acute effects of aspirin on auditory function in rats. Lever pressing behavior for water reinforcement was suppressed in the presence of an auditory stimulus that had been previously paired with electric shocks. A single intravenous injection of aspirin at a dose of 225 mg/kg caused an erroneous lever pressing response in the broad sound intensities of 2 kHz tone stimulus during the conditioned stimulus period. A statistically significant increase in the threshold for 2 kHz was found 1 to 72 hr after dosing but not for 4, 8 and 10 kHz. These results suggest that the hearing for low sound frequency in rats is vulnerable to the effects of aspirin. This paradigm in rats may be useful to further assess the different outer hair cells along the cochlear duct and provide an additional evidence for the aspirin ototoxicity research.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Estimulación Acústica
/
Antiinflamatorios no Esteroideos
/
Aspirina
/
Condicionamiento Clásico
/
Pérdida Auditiva
Límite:
Animals
Idioma:
En
Revista:
J Vet Med Sci
Asunto de la revista:
MEDICINA VETERINARIA
Año:
1997
Tipo del documento:
Article
País de afiliación:
Japón