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Monday 01 August 2005

Amiloride protects against pentylenetetrazole-induced kindling in mice.

By: Ali A, Ahmad FJ, Pillai KK, Vohora D.

Br J Pharmacol 2005 Aug;145(7):880-4

This study was performed to investigate whether or not amiloride, a sodium-hydrogen exchanger (NHE) inhibitor, can protect against seizure development of pentylenetetrazole (PTZ)-induced kindling in mice.Kindling was induced by once every 2 days treatment with PTZ (25 mg kg(-1) i.p.) for 5 weeks. Challenge experiments were carried out after 15 or 30 days of last treatment with PTZ. Administration of amiloride (2 h before PTZ, in doses of 0.65 and 1.3 mg kg(-1), p.o.) significantly prolonged the onset of kindling and reduced the incidence and severity of seizures in a dose-dependent manner. The effect of amiloride on the incidence of PTZ-induced seizures was evident even after 15 or 30 days of last treatment. The results indicate a protective role for amiloride against PTZ-induced kindling in mice. The possibility of mediation of such effects by NHE inhibition is discussed.

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