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Yıl:2007; Cilt: 3; Sayı: 47>> Özet
Türkiye Klinikleri Dahili Tıp Bilimleri Dergisi Psikiyatri; 2007;3(47):12-18
Genetik ve Depresyon
MB Sönmez, E Abay
Psikiyatri AD, Trakya Üniversitesi Tıp Fakültesi, EDİRNE
Depresyon en yaygın ruhsal bozukluklar arasında yer almasına rağmen etiyolojisi hakkında çok az şey bilinmektedir. Yapılan aile, ikiz ve evlat edinme çalışmaları diğer duygudurum bozuklukları gibi depresyona yatkınlık için de genetik temeller olduğunu ileri sürmektedir. Depresyonun kalıtım özellikleri birden çok yatkınlık geninin ve çevresel etkilerin birlikte rol oynadığı karmaşık genetik geçişe uymaktadır. Moleküler genetik alandaki bağlantı ve ilişkilendirme çalışmaları bazı ümit verici sonuçlar sağlamakla birlikte henüz üzerinde görüş birliği sağlanan bir kalıtım kalıbı, hastalıktan sorumlu bir kromozom bölgesi ya da yatkınlık geni belirlenememiştir. Bu yazıda depresyonun genetiği ile ilgili yapılan aile, ikiz, evlat edinme ve moleküler genetik çalışmalar gözden geçirilmiş, çalışmaların bugünkü durumu ve gelecekteki beklentiler tartışılmıştır.
Genetics and Depression
Despite depression is among the most common psychiatric diseases, little is known about its etiology. Recent findings from family, twin and adoption studies suggest a genetic basis for susceptibility to depression such as other affective disorders. The mode of inheritance of depression does not follow a simple pattern, a combination of multiple genes and environmental factors takes place in the etiology of the disorder. Promising findings have been emerged in linkage and association studies though no consensus on a mode of inheritance, a single susceptibility gene or a chromosomal region has yet been achieved. In the present paper family, twin, adoption studies and molecular genetic studies were reviewed. Current status of genetic research and future directions were discussed.

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