Delta-sleep-inducing peptide potentiates anticonvulsive activity of valproate against metaphit-provoked audiogenic seizure in rats.

Abstract:

:The effect of delta-sleep-inducing peptide (DSIP) on the anticonvulsive activity of a nonprotective valproate (VPA) dose in a metaphit model of generalized, reflex audiogenic seizures in adult Wistar rats was studied. The animals that received metaphit (10 mg/kg) were exposed to audiogenic stimulation (100 +/- 3 dB, 60 s) at hourly intervals. Metaphit-treated rats displaying seizures in 8 previous tests were i.p. injected with VPA (50 mg/kg) or DSIP (1.0 mg/kg) or their combination. Latency to seizure was behaviorally assessed. The EEGs and power spectra were recorded and analyzed. Neurotoxicity was evaluated by the chimney test. DSIP or VPA alone expressed no significant effect on the latency duration, but their combination significantly prolonged latency to seizure during 6 h after injection, while inducing no significant motor impairment. Neither the applied drugs nor their combination abolished metaphit-provoked EEG epileptiform activity. The results show that DSIP potentiated anticonvulsive effects of a nonprotective VPA dose in a metaphit model of audiogenic seizures without influencing its neurotoxicity.

journal_name

Pharmacology

journal_title

Pharmacology

authors

Hrncić D,Stanojlović O,Zivanović D,Susić V

doi

10.1159/000093001

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

78-84

issue

2

eissn

0031-7012

issn

1423-0313

pii

93001

journal_volume

77

pub_type

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