Dergi Ara >>
Yıl:2002; Cilt: 3; Sayı: 4>> Özet
TAM METİN
Anadolu Psikiyatri Dergisi; 2002;3(4):206-211
Lityum ya da karbamazepin kullanmakta olan ötimik bipolar I hastalarda protein kısıtlamasının mizaç ve serotonin düzeyi üzerindeki etkileri
MT Turan, Y Özcan, E Eşel, İ Karaküçük, M Baştürk
Erciyes Üniversitesi Tıp Fakültesi Psikiyatri Anabilim Dalı, KAYSERİ
Amaç: Beyin serotoninin (5-HT), bipolar bozuklukta atakları da önleme dahil, lityum (Li) ya da karbamazepinin (KZ) etkilerine
iştirak edip etmediği belli değildir. Bu çalışmanın amacı, Li ya da KZ kullanmakta olan ötimik bipolar I hastalarda protein
kısıtlamasının mizaç ve serotonerjik sistem işlevi üzerindeki etkilerini araştırmaktı. Yöntem: Bipolar I bozukluk için DSM-IV
kriterlerini dolduran 32 hasta ve 10 sağlıklı gönüllü bu çalışmaya dahil edildi. Hastalardan 22’si Li, 10’u KZ kullanmaktaydı. Bütün
deneklere 1 hafta boyunca proteinden kısıtlı diyet uygulandı. Proteinden kısıtlı diyet öncesi ve sonrası plazma 5-HT ve serbest Ltriptofan
(L-TRF) düzeyleri ölçüldü. Diyet sonrası semptomlar yeniden değerlendirildi. Bulgular: Diyet sonrası plazma 5-HT
düzeyinin Li grubunda kontrol grubuna göre önemli oranda azalmış olduğu bulundu. Hastaların mizaçlarında önemli bir değişme
tespit edilmedi. Tartışma: Li ya da KZ tedavisi ile ötimik olan bipolar I hastalarda protein kısıtlamasının sebep olduğu 5-HT
işlevindeki bozulma mizaç değişiklikleri oluşturmada yetersiz olabilir.
The effects of protein depletion on mood and plasma serotonin level in euthymic bipolar I patients treated with lithium or carbamazepine
Objective: It is not clear whether or not brain serotonin (5-HT) function mediates the therapeutic effects of lithium (Li) or
carbamazepine (CZ) in bipolar disorder, including prevention of relapse. The aim of present study was to examine the effects of
protein depletion on mood and serotonergic function in bipolar I patients who were symptomatically stable on Li or CZ.
Method: Thirty-two patients who met DSM-IV criteria for bipolar I disorder and 10 healthy volunteers participated in this study.
Twenty-two of the patients were on Li treatment while the others were on CZ. All subjects underwent a protein-depleted diet
for 1 week. Plasma 5-HT and free L-tryptophan (L-TRP) levels were measured before and after the protein-depleted diet.
Symptoms were also evaluated after the protein-depleted diet. Results: After the protein-depleted diet it was found that
plasma 5-HT level of Li treated group was significantly lower than that of control group. There were no significant changes in
mood. Conclusion: The disruption of 5-HT function caused by protein depletion may be insufficient to cause mood changes in
bipolar I patients stabilized on Li or CZ treatment.

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