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Yıl:1999; Cilt: 9; Sayı: 4>> Özet
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Klinik Psikofarmakoloji Bülteni; 1999;9(4):181-184
Kısa süreli haloperidol uygulamasının tavşan striatumu üzerine histopatolojik etkileri
N Aydın, MD Aydın, A Çayköylü, C Gündoğdu, F Erdoğan
Atatürk Üniversitesi Tıp Fakültesi, Psikiyatri Anabilim Dalı. Erzurum
Amaç: Antipsikotik ilaçların etki mekanizmasıyla ilgili çalışmalar sürmekte ve bu ilaçların beyinde yapısal değişiklik yapıp yapmadığı ve bunun extrapiramidal belirtilerle ilişkisinin olup olmadığı tartışmalı bir konu olarak gündeme gelmektedir.Bu maksatla haloperidol verilen tavşanların corpus striatumunun histolojisi incelendi.

Yöntem: Çalışma 30 tavşan üzerinde gerçekleştirildi. Onbeş tavşana 1 ay süreyle 3mg'kg'gün dozunda haloperidol, geri kalanlara sadece laktat intramusküler olarak verildi. Bir ay sonunda her bir beynin striatal bölgesi ışık mikroskobu ile incelendi.

Sonuçlar: Kontrol grubuna kıyasla haloperidol uygulanan grupta striatumda iskemik hücre sayısında önemli düzeyde (p<0.05) artış gözlendi.

Tartışma: Haloperidol benzeri klasik nöroleptiklerin striatal dopaminerjik aktiviteyi azaltmaları, corpus striatumdaki dopaminerjik nöronlarda iskemik değişiklikler oluş turması ile ilşkili olabilir. Bu bulguların ışığında klinikte nöroleptik uygulama esnasında beyinde yapısal değişiklikler olabilirliğini ve bu durumun akılda tutulması gerektiğini düşündük
The histopathologic effect of short-term administration of haloperidol on rabbit striatum
Objective: Studies related to mechanism of action of antipsychotic drugs are being gone on and still some studies are carried out whether these drugs might lead to structural changes in brain and whether these changes might be associated with extrapyramidal symptoms .for this purpose, histologic examination of corpus striatum of rabbits being administered haloperidol was aimed.

Method: Thirty rabbits are included in this study. Haloperidol at a dose of 3mg?kg?day was given intramuscularly to 15 of the animals and only lactate at a some dose was given intramuscularly to the remaining animals for 1 [month]. At the end of one [month], striatal region of each animal was evaluated on light microscopy.

Results: There was a significant increase in the number of ischemic cells in the haloperidol group when compared the control group (p<0.05).

Discussions: That haloperidol-like antipsychotic decrease dopaminergic activity might be related to via ischemic changes they produced in dopaminergic neurons of corpus striatum. In the light of these data, we think that there may be structural changes during neuroleptic use in clinics. This condition must be kept in mind.

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