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Yıl:2023; Cilt: 60; Sayı: 3>> Özet
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Nöropsikiyatri Arşivi; 2023;60(3):265-270
Şizofrenide İlk Atak ve Psikotik Alevlenmeler Sırasında İnflamasyon ve Kan Akışkanlığı: Sağlıklı Kontrollerle Bir Olgu-Kontrol Çalışması
YH Balcıoğlu, H Gökçay , ÜH Yeşilkaya , MN Namlı
Bakırköy Prof. Dr. Mazhar Osman Ruh Sağlığı ve Sinir Hastalıkları Eğitim ve Araştırma Hastanesi, İstanbul
Amaç: Her ikisi de şizofreni patofizyolojisi ile ilişkili olan artmış proenflamatuvar durum ve kan akışındaki değişikliklerin, artmış kardiyovasküler hastalık riski ile de bağlantılı olduğu bildirilmiştir. Bununla birlikte, şizofreninin farklı akut evrelerinde böyle bir ilişki yeterince araştırılmamıştır. Bu çalışmada, kan akışmazlığı (viskozite) ve sistemik enflamatuvar durumun, şizofrenide ilk psikoz atağı ile şizofreninin akut alevlenmeleri arasında farklılık gösterip göstermediğinin incelenmesi amaçlanmıştır. Yöntem: Çalışmaya şizofrenide ilk psikoz atağı grubunda 52 hasta, psikotik alevlenmede olan 69 şizofreni hastası ile 56 sağlıklı kontrol dâhil edildi. Tam kan viskozitesi (TKV), düşük ve yüksek kesme hızlarında olmak üzere de Simone formülüne göre hesaplandı. Başvuruda yapılan hemogram tetkiki ile sistemik immün-enflamasyon endeksi ve sistemik enflamatuvar yanıt endeksi hesaplandı. Bulgular: Yaş kontrol edildiğinde, TKV’deki düşük ve yüksek kesme hızları hem şizofrenide ilk psikoz atağı hem de şizofrenide psikotik alevlenme gruplarında kontrollerden anlamlı düzeyde daha düşüktür. Sistemik enflamatuvar yanıt endeksi şizofrenide ilk psikoz atağındaki hastalarda hem psikotik alevlenmedeki şizofreni hasta grubuna hem de kontrol grubuna göre anlamlı olarak daha yüksektir. Oluşturulan regresyon modeline göre toplam kolesterol şizofrenide ilk psikoz atağı hastalarında düşük kesme hızında TKV’yi yordamaktadır. Sonuç: Şizofrenide hem ilk psikoz atağı hem de sonraki alevlenmeler artmış kan akışkanlığı ile ilişkilidir ve artmış enflamatuvar durum böyle bir ilişkiyi tam olarak açıklamayabilir. Şizofrenideki kan akışkanlık özelliklerinin gösterilmesi, kardiyovasküler riski sınıflandırmanın yanında şizofreninin erken ve sonraki evrelerindeki patofizyolojik süreci yansıtmaya yardımcı olabilir
Blood Viscosity and Inflammation in First-Episode and Acute Exacerbations of Schizophrenia:A Case-Control Study with Healthy Controls
Introduction: Elevated proinflammatory status and alterations in blood flow, both of which are associated with the pathophysiology of schizophrenia, may be linked with an increased risk of cardiovascular diseases. However, such a relationship at different acute stages of schizophrenia has not been evaluated. We aimed to examine whether blood viscosity and systemic inflammatory status varied between firstepisode schizophrenia (FES) and acute exacerbations of schizophrenia. Methods: Fifty-two patients with FES, 69 schizophrenia patients with acute exacerbation (S-AE) and 56 healthy controls (HC) were included in the study. Whole blood viscosity (WBV) was calculated according to de Simone’s formula at low and high shear rates (LSR and HSR). Systemic immune-inflammation index (SII) and systemic inflammatory response index (SIRI) were calculated from hemogram screening data at admission. Results: When adjusted for age, WBV at both LSR and HSR were significantly decreased in both FES and S-AE groups compared to HCs. Systemic inflammatory response index was significantly higher in FES patients than in the S-AE and HC groups. Total cholesterol (TC) and WBV at HSR were correlated in patients. Total cholesterol predicted WBV at LSR in patients with FES whereas other independent variables including age and SIRI did not. Conclusion: Both first and subsequent episodes of schizophrenia are associated with reduced blood viscosity. Increased inflammatory status may not fully explain such a relationship. Extrapolation of hemorheological characteristics in schizophrenia may help to stratify cardiovascular risk and reflect the pathophysiological process in the early and later stages of schizophrenia.

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