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Yıl:2016; Cilt: 9; Sayı: 1>> Özet
Türkiye Klinikleri Psikiyatri Özel Dergisi; 2016;9(1):76-79
Sosyal Kaygı Bozukluğu Genetiği
AE Darçın, N Dilbaz
Üsküdar Üniversitesi, İstanbul
Sosyal kaygı bozukluğu %7 ile 13 arasında değişen yaşam boyu sıklığı ile tüm psikiyatrik bozukluklar içerisinde en sık görülenidir. Sosyal kaygı bozukluğunun ailesel temeline ilişkin kuvvetli kanıtlar olmasına karşınaz sayıda çalışma potansiyel aday genleri çalışmıştır. Ek olarak genetik bir ilişki yanında bozukluğa ilişkin bazı mizaci özelliklerin genetik olarak aktarılması da söz konusu olabilir. Sosyal kaygı bozukluğu ve davranışsal inhibisyon, nörotisizm, içe dönüklük ve zarardan kaçınma ile ilişkili yapılan genetik temelli çalışmalar, şiddetli sosyal kaygının etyolojisinde genetik faktörlerin en azından orta düzeyde etki ettiğini göstermektedir. İnsan serotonin taşıyıcı gen (5-HTT bağlı polimorfik bölge; 5-HTTLPR) promoter polimorfizminin kısa (s) allelinin kaygı ilişkili kişilik özellikleri, artmış korku durumsallığı ve yaşam stresi ile tetiklenmiş duygulanım bozuklukları ile ilişkili bulunduğu bildirilmiştir. Sosyal kaygı bozukluğundaki genetik bulgular halen tutarsız görülmekte ve daha fazla çalışmayı hak etmektedir.
Genetics of Social Anxiety Disorder
Social anxiety disorder is among the most common of all psychiatric disorders with lifetime prevalence estimates ranging from 7% to 13%. Although there is evidence that social anxiety disorderhas a strong familial basis, there are few studies of potential candidate genes. In addition to a genetic association, there is also the possibility that temperamental risk factors for the disorder may be genetically transmitted.Genetically-oriented studies of social anxiety disorder and related constructs such as behavioral inhibition, neuroticism, introversion and harm-avoidance suggest that genetic factors play at least a moderate role in the etiology of excessive social anxiety. The short (s) allele of the promoter polymorphism of the human serotonin transporter gene (the 5- HTT-linked polymorphic region; 5-HTTLPR) has been associated with anxiety-related personality traits, increased fear conditionability, and life-stress-induced affective disorder. Genetic findings in social anxiety disorder have been inconsistent and deserve further exploration.

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