Effects of adenosine administration on spike-wave discharge frequency in genetically epileptic rats.

Abstract:

:1. In the present study, the effects of the administration of adenosine on absence seizures were investigated in the Wistar Albino Glaxo/Rijswijk (WAG/Rij) strain of rats, which are an adequate model for human absence epilepsy. 2. After baseline electroencephalogram (EEG) recording, adenosine was injected intraperitoneally (i.p.) at doses of 6, 30 and 120 mg/kg and EEG recordings were continued for 1 h postinjection. In addition, to enable evaluation of the contribution of peripheral factors to the occurrence of spike-wave discharges (SWD) after adenosine injection, arterial blood pressure and rectal temperature were also recorded. 3. Injection of adenosine induced a dose-dependent increase in the appearance of SWD. The number and total duration of SWD were found to be significantly increased after 30 and 120 mg/kg adenosine (P < 0.05). Adenosine also induced a fall in both blood pressure and body temperature in all experimental groups. 4. These results show that peripheral administration of adenosine promotes absence seizures. It is likely that the lowering of blood pressure and body temperature and the activation of sensory afferents after adenosine injection may contribute to the facilitation of SWD observed in the present study.

authors

Ilbay G,Sahin D,Karson A,Ates N

doi

10.1046/j.1440-1681.2001.03499.x

keywords:

subject

Has Abstract

pub_date

2001-08-01 00:00:00

pages

643-6

issue

8

eissn

0305-1870

issn

1440-1681

pii

cep3499

journal_volume

28

pub_type

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