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Yıl:1997; Cilt: 8; Sayı: 2>> Özet
Türk Psikiyatri Dergisi; 1997;8(2):139-145
Kalsiyum Kanal Blokörlerinin Nöropsikofarmakolojik Özellikleri
A DO?RUL
Voltaja bağlı kalsiyum kanallarının santral sinir sistemideki fonksiyonları üzerine çalışmalar yapılmaktadır. Otoradyografik çalışmalar L-tipi kanalların beyinde oldukça heterojen bir şekilde dağıldıklarını göstermektedir. Antihipertansif, antianjinal ve antiaritmik etkileri kanıtlanmış olan kalsiyum kanal blokörleri periferal uygulama ile kan-beyin bariyerini geçmekte ve bir takım santral etkileri olduğu yönünde birçok kanıt bulunmaktadır. Bununla birlikte potent periferal etkileri, santral etkilerin yanlış değerlendirilmesine yol açabilmektedir. Antiepileptik, antidopaminerjik, analjezik, antidepresan etkileri olduğu ve morfin ve alkol yoksunluk semptomlarını azalttıkları deneysel modellerde ortaya konmuştur. Kalsiyum kanal blokörleri gelecekte bir takım santral sinir sistemi hastalıklarının tedavisinde faydalı olabilme potansiyeli taşımaktadır.

Neuropsychopharmacological Properties of Calcium Channel Blockers
The possible role of voltage-activated calcium channels in the nervous system remains to be explored. Autoradiographic studies revealed a heterogenous distribution of L-type calcium channel binding sites within the brain. Calcium channel blockers (CaCBs) with established efficacy in the therapy of hypertension, angina and arrhythmias, do penetrate the blood-brain barrier. The existing evidence has shown that CaCBs have potantial central effects. However, their peripheral effects on the cardiovascular system may cause a misinterpretation of central actions of CaCBs. They exhibit anticonculsant, antidopaminergic, analgesic and antidepressant effects. Morphine and ethanol withdrawal symtoms can also be attenuated by CaCBs. CaCBs may be useful in treating a variety of disorders of the central nervous system.


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