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Yıl:2012; Cilt: 2; Sayı: 2>> Özet
TAM METİN
Journal of Mood Disorders; 2012;2(2):58-65
Depresif bozuklukta serum BDNF düzeyleri ile bilişsel işlevler ve kortizol düzeyleri arasındaki ilişki
GS Varma, Y Enli, E Aydın, TT Uğurlu, H Alaçam, NK Oğuzhanoğlu
Pamukkale Üniv. Tıp Fak. Psikiyatri ABD, Denizli
Amaç: Bu çalışmada, depresif bozuklukta serum BDNF düzeyleri ile bilişsel işlevler ve kortizol düzeyleri arasındaki ilişkinin araştırılması amaçlandı.
Yöntem: Çalışmaya DSM-IV tanı ölçütlerine göre major depresif bozukluk tanısı konulan ve antidepresan ilaç kullanımı olmayan 30 hasta katıldı. Depresyon şiddetinin belirlenmesinde Hamilton Depresyon Değerlendirme Ölçeği (HAM-D17) kullanıldı. Serum BDNF düzeyleri ELİSA yöntemi ile belirlendi. Bilişsel işlevlerin değerlendirilmesinde Sayı dizileri testi, Stroop testi, Sözel bellek süreçleri testi, Wechsler-görsel bellek alt testleri uygulandı.
Bulgular: Hastaların HAM-D17 puan ortalaması 17.09±4.96 olarak tespit edildi. Serum BDNF düzeyleri ortalama 1453.42±144.51 pg/ml, serum sabah kortizol düzeyleri 11.54±4.57µg/dL olarak belirlendi. HAM-D17 puanları ile BDNF düzeyleri arasında korelasyon saptanmadı. Serum BDNF düzeyleri ile kortizol düzeyleri ve nöropsikolojik test puanları arasında korelasyon saptanmadı. Serum kortizol düzeyleri ile Stroop testi süre farkı arasında pozitif korelasyon tespit edildi (rs=0.396 p=0.017). Serum kortizol düzeyleri ile diğer nöropsikolojik test puanları arasında korelasyon saptanmadı.
Sonuç: Çalışmamızda depresyonu olan hastalarda BDNF düzeyleri ile dikkat ve bellek performansları arasında ilişki bulunmamıştır. Sabah bazal kortizol düzeylerinin yüksek olması dikkati olumsuz yönde etkilemektedir. Serum BDNF düzeyleri ile sabah ölçülen kortizol düzeyleri arasında ilişki saptanmamıştır.
Relationship between serum BDNF levels and cognitive functions, cortisol levels in depressive disorder
Objective: The objective of this study was to examine the relationship between the serum BDNF levels in depressive disorder patients and cognitive functions along with cortisol levels.
Methods: Thirty patients meeting the DSM-IV criteria for major depressive disorder were recruited for this study. Patients had not used psychotropic drugs. The severity of depression was assessed by the Hamilton Rating of Depression Scale (HAM-D17). Serum BDNF levels were determined by using ELISA. Neuropsychological evaluation included Digit Span Test, Stroop Test, Verbal Memory Processing Test and Weschler-Visual Memory.
Results: HAM-D17 scores were 17.09±4.96 in patients. Serum BDNF levels were established to be 1453.42±144.51 pg/mL, and mean serum morning cortisol level was established as 11.54±4.57 µg/dL. No relationship was determined between the HAM-D17 scores and BDNF levels. The serum BDNF levels were not correlated with cortisol levels, and neuropsychological tests scores. Serum cortisol levels and Stroop test time differences were established to be positively correlated (rs=0.396 p=0.017). Serum cortisol levels were not correlated with other neuropsychogical tests.
Conclusion: No relationship was determined between the BDNF levels and attention and memory performances for patients with depression. It was determined that elevated morning baseline cortisol levels affected attention negatively. There was no correlation between serum BDNF levels and morning cortisol levels.

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