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Yıl:2016; Cilt: 17; Sayı: 6>> Özet
TAM METİN
Anadolu Psikiyatri Dergisi; 2016;17(6):476-481
Şizofreni hastalarında ksantin oksidaz, adenozin deaminaz ve E vitamini düzeyleri
H Kılıçgün, EE Erşan, S Bakır, S Erşan, D Koç, Ö Demirpençe, K Doğan
Erzincan Üniversitesi, Erzincan
Amaç: Serbest radikallerin neden olduğu nöronal hasarın birçok psikiyatrik bozukluğun oluşumunda etkili olduğu düşünülmektedir. Bu düşünce oksidatif streste rol oynayan serbest radikallerin toksik etkilerinin olmasından kaynaklanmaktadır. Beynin oksidatif hasara en duyarlı organlardan biri olduğu düşünüldüğünde, oksidatif stresin psikiyatrik bozukluklardaki önemi anlaşılacaktır. Ayrıca beyindeki yüksek oksijen kullanımı serbest radikal hasarına en duyarlı moleküllerden biri olan lipitten zengin yapısı, ortalama antioksidan sistemine sahip olması psikiyatrik bozuklukların oluşumunda oksidatif stres kuramını desteklemektedir. Araştırmanın amacı, şizofreni hastalarında ve kontrol grubunda ksantin oksidaz (XO), adenozin deaminaz (ADA) ve E vitamini düzeylerini belirlemektir. Ayrıca ölçülen parametreleri birbiri ile karşılaştırarak şizofreni ile arasındaki ilişkiyi araştırmaktır. Yöntem: Araştırmanın örneklemini şizofreni tanısı konmuş olan 30 hasta oluşturdu. Cinsiyet açısından eşleştirilen, yaş ve sigara içme bakımından benzer 30 gönüllü sağlıklı kişi kontrol grubunu oluşturdu. Hasta ve kontrol grubu serum ADA, XO ve vitamin E ölçümleri manuel olarak spektrofotometrik yöntemle yapıldı. Sonuçlar: Şizofreni grubunun serum XO düzeyleri kontrol grubuna göre anlamlı ölçüde yüksek bulundu. Serum E vitamini ve ADA düzeyi şizofreni grubunda kontrol grubuna göre anlamlı ölçüde düşük bulundu. Tartışma ve Sonuç: Çok çeşitli klinik belirtilere ve bozukluk sürecine sahip olan şizofreni oluşum düzeneğinin henüz aydınlatılamamış olması bu çalışmaların önemini ortaya koymaktadır. Çalışmamızda antioksidan olan E vitamini ve ADA düzeyinin düşük, XO düzeylerinin yüksek bulunması; şizofreninin patogenezinde oksidatif stres aracılı nöronal hasarın da rolünün olabileceğini göstermektedir. Bu nedenle daha geniş örnek grupları ile araştırmalar yapılması gerektiğini düşünüyoruz.
Xanthine oxidase, adenosine deaminase and vitamin E levels in patients with schizophrenia
Objective: Neuronal damage caused by free radicals is believed to be effective in pathogenesis of several psychiatric disorders. This belief is due to the toxic effects of free radicals that play a role in oxidative stress. Considering that the brain is one of the most sensitive organs to the oxidative damage, the importance of oxidative stress in psychiatric disorders will become more apparent. Additionally, high oxygen use in the brain, and its structure rich in lipid, which is one of the most sensitive molecules to the free radical damage, and its having the average antioxidant system yield support oxidative stress theory in the pathogenesis of psychiatric disorders. This study aimed to determine xanthine oxidase (XO), adenosine deaminase (ADA) and vitamins E levels in patients with schizophrenia and control groups, and to investigate the relationship between schizophrenia and the parameters by comparing the measured parameters with each other. Methods: Our study sample included 30 patients diagnosed with schizophrenia. The control group consisted of 30 healthy volunteers matched by sex with similar age and smoking habits. In the patient group and the control group, adenosine deaminase, xanthine oxidase, and vitamin E were measured manually using spectrophotometric methods. Results: Serum xanthine oxidase levels in the schizophrenic group were significantly higher than the control group levels. Serum vitamin E and adenosine deaminase levels in the schizophrenia group were significantly lower than the levels of the control group. Discussion and Conclusion: The fact that mechanism of schizophrenia pathogenesis which has a wide variety of clinical symptoms and a disease process is yet to be elucidated reveals the importance of this kind of studies. In this study, low levels of antioxidant vitamin E and adenosine deaminase, and high levels of xanthine oxidase suggest that oxidative stress-mediated neuronal damage may play a role in the pathogenesis of schizophrenia. Therefore, we believe that further research with larger sample groups should be conducted.

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