Dergi Ara >>
Yıl:2009; Cilt: 20; Sayı: 4>> Özet
TAM METİN
Türk Psikiyatri Dergisi; 2009;20(4):385-391
Stres ile İlişkili Duygudurum Bozukluklarında BTNF Ölçümleri: Klinik Çalışmaların Gözden Geçirilmesi
Ö Aydemir, A Deveci
Celal Bayar Ü Psikiyatri AD., Manisa
Amaç: Beyin-türevli nörotrofik faktör (BTNF) ile ilgili çalışmalar hem duygudurum bozukluklarında hem de diğer ruhsal bozukluklarda giderek artmaktadır. BTNF'nin ruhsal bozukluklarda bir belirteç olup olamayacağı üzerine çok sayıda klinik çalışma yayınlanmıştır.. Bu yazıda stresle ilişkili duygudurum bozukluklarında BTNF ölçüm sonuçlarının derlenmesi amaçlanmıştır.

Yöntem: Uluslararası yayınları araştırmak amacıyla PubMed veri tabanına ve ulusal yayınlara ulaşmak amacıyla Psikiyatri Dizini veri tabanına BTNF ve stres veya duygudurum bozukluğu yazılarak sadece insan çalışmaları değerlendirilmiştir.

Bulgular: Stres etkilerinin fizyopatolojisinde yer alan, nöron sayısında ve hacminde küçülmeyle ilişkili olduğu öne sürülen BTNF, depresyonda sağlıklılardan daha düşük düzeyde bulunmuştur. Bunun yanı sıra antidepresan tedaviyle depresyonun iyileşmesine paralel olarak BTNF düzeyi yükselmekte ve sağlıklı deneklerle aynı düzeye ulaşmaktadır; antidepresan tedaviye yanıt vermeyenlerde ise beklenen yükselme olmamaktadır. Diğer yandan depresyon olmaksızın, stresle ilişkili diğer ruhsal bozukluklarda da BTNF düzeyi düşmektedir.

Sonuç: Şimdiye kadar yapılan çalışmalarda depresyonda düşük BTNF düzeyi ile ilgili tutarlı veriler sağlanmış olsa bile, özgüllüğü konusu kuşkuludur. BTNF stresle ilişkili duygudurum bozuklukları için bir belirteç olarak kabul edilecek gibi görünmektedir.
BDNF Measurement in Stress-Related Mood Disorders: A Review of Clinical Studies
Objective: The study of brain-derived neurotrophic factor (BDNF) in mood disorders and other psychiatric disorders is increasing. Of particular interest is whether or not BDNF can be a marker for psychiatric disorders. The aim of this study was to review the published findings on BDNF in stress-related mood disorders.

Method: Searches were conducted of the PubMed and Psikiyatri Dizini databases to access international and national publications, respectively. Database searches were conducted with the keywords BDNF, and stress and mood disorders.

Results: BDNF plays a role in the physiopathology of stress-related changes and is supposedly related to a decrease in the number and size of neurons. Additionally, it has been suggested that serum levels of BDNF are lower in depressive patients than in the healthy controls. Nonetheless, BDNF levels increase after antidepressant treatment, along with symptom recovery, to those seen in healthy control subjects. This increase cannot be achieved in patients that do not respond to antidepressant treatment. On the other hand, in patients with stress-related non-depressive psychiatric disorders, serum BDNF is also low.

Conclusion: To date, even though consistent findings of reduced BDNF levels have been reported, the specificity of these findings is doubtful. Serum BDNF might be considered a marker for stress-related mood disorders.

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