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Yıl:2004; Cilt: 5; Sayı: 1>> Özet
TAM METİN
Anadolu Psikiyatri Dergisi; 2004;5(1):37-44
Leptin ve psikiyatrik bozukluklar
CB Şengül, C Şengül, T Okay, N Dilbaz
Ankara Numune Eğitim ve Araştırma Hastanesi II. Psikiyatri Kliniği, ANKARA
Psikiyatrik bozukluklar ile ilgili, biyolojik göstergelerin (marker) arayışı ve bunların tedaviyle değişimi üzerinde uzun
süredir çalışılmaktadır. 1994 yılında Zang tarafından keşfinin üzerinden henüz kısa bir süre geçmiş olmasına karşın, leptin
gerek genel tıpta, gerekse psikiyatride oldukça çalışılmış göstergelerdendir. Leptin, endokrin sistemle olan ilişkisi,
periferik ve santral etkilerinin niteliği gibi nedenlerle oldukça dikkat çekicidir. Adipozit dokudan 167 aminoasit olarak
salınır dolaşımda ise 146 aminoasit halinde serbest halde veya özgün proteinine bağlı halde bulunur. Beyinde ise
hipotalamus ve amigdalada bulunur. Araştırmalar arttıkça sadece gıda alımı ve enerji harcanmasıyla değil, bunun yanı sıra
uyku, cinsel davranış, impulsivite gibi birçok alanda etkili olduğu görülmüştür. Bu da leptinin psikiyatride depresyon,
bipolar bozukluk, intihar ve yeme bozukluğu gibi birçok durumda incelenmesinin yolunu açmıştır. Bu yazıda psikiyatride
leptinle ilgili yapılan çalışmalar gözden geçirilmiştir.
Leptin and psychiatric disorders
For a long time biologic markers have been searched and alterations of these markers with treatment were studied. Zang
discovered Leptin in 1994, since then many studies were performed in general medicine and psychiatry. Leptin draw
attention because of its central and peripheric effects. Leptin is synthesized in adipose tissue as a 167-aminoacide
polypeptide and then transform in to a 146-aminoacide polypeptide in circulatory system. It is also found at
hypothalamus and amygdale in brain. In recent researches, some evidences were determined that leptin is not only
involved in food intake and energy consumption but also involved in sleep regulation, sexual behavior, and impulsivity.
These evidences gave rise to a lot of studies, which had been performed to designate the role of leptin in psychiatric
disorders and conditions like depression, bipolar disorder, suicidality and eating disorder. In this article researches of
leptin in psychiatry literature were reviewed.

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