Neuroprotective effect of ziprasidone: Preliminary results compared to haloperidol

Authors : Nilgün ÇINAR, Alper KARAOĞLAN, Ahmet MİDİ, Mehmet Alpay ÇAL, Bilal KETEN, Miraç Ayşen ÇAKMAK, Sevki ŞAHİN
Pages : 71-75
View : 55 | Download : 7
Publication Date : 2014-09-10
Article Type : Research Paper
Abstract :Typical and atypical antipsychotic drugs are widely used to treat psychosis. The resent study investigated whether ziprasidone, an atypical antipsychotic drug, has a neuroprotective effect on hippocampal neurons in rats with experimentallyinduced transient cerebral ischemia comparatively with haloperidol which is a typical antipsychotic. Transient cerebral ischemia was induced by 10-minute occlusion of bilateral carotis communis arteries. The rats were divided into four groups: Shamoperated control group insert ignore into journalissuearticles values(Group I);, ischemia control group insert ignore into journalissuearticles values(Group II);, haloperidol-treated group insert ignore into journalissuearticles values(Group III); and ziprasidone-treated group insert ignore into journalissuearticles values(Group IV);. Following 10-minute ischemia, Group III received 1mg/kg haloperidol intramuscularly and Group IV received 2.5 mg/kg ziprasidone intraperitoneally. The animals were sacrificed on the seventh day following induced ischemia to determine the number of intact neurons at hippocampus and dentate gyrus to demonstrate the effects of ischemia and efficacy of the treatments administered. Surviving cell numbers were found in the sham operated group; 198, in the ischemia control group; 80, in the haloperidol-treated group; 185, in ziprasidonetreated group; 189. The groups showed significant difference in the comparison of the surviving cell numbers. However, the number of surviving cells did not significantly different between the ziprasidone and haloperidol-treated group. Previous studies with the ischemia model have demonstrated protective effects of haloperidol on hippocampal region. The findings of the present study show that ziprasidone, which is an atypical antipsychotic drug, may produce neuroprotective effects as potent as haloperidol, which is a typical antipsychotic drug.
Keywords : Brain ischemia, Haloperidol, Hippocampus, Neuroprotective agents, Ziprasidone

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