| Summary: | Murat Beyazyüz,1 Tarkan Küfeciler,2 Leyla Bulut,3 Cüneyt Ünsal,1 Yakup Albayrak,1 Esra Soydaş Akyol,4 Saliha Baykal,1 Murat Kuloglu,5 Kenji Hashimoto61Department of Psychiatry, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey; 2Department of Emergency Medicine, Çekirge State Hospital, Bursa, Turkey; 3Department of Biochemistry, Okmeydani Education and Research Hospital, Istanbul, Turkey; 4Department of Psychiatry, Yenimahalle Education and Research Hospital, Ankara, Turkey; 5Department of Psychiatry, Faculty of Medicine, Akdeniz University, Antalya, Turkey; 6Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, JapanBackground: Schizophrenia is a chronic and debilitating disorder, the etiology of which remains unclear. Apoptosis is a programmed cell death mechanism that might be implicated in neuropsychiatric disorders, including schizophrenia. In this study, we aimed to compare the serum levels of apoptosis among deficit schizophrenia (DS) syndrome patients, nondeficit schizophrenia (NDS) patients, and healthy controls (HCs).Patients and methods: After the inclusion and exclusion criteria were applied, 23 DS patients, 46 NDS patients, and 33 HCs were included in the study. The serum apoptosis levels were measured using a quantitative sandwich enzyme immunoassay with human monoclonal antibodies directed against DNA and histones.Results: There was a significant difference among the three groups in terms of the levels of apoptosis (F2,96=16.58; P<0.001). The serum apoptosis levels in the DS and NDS groups were significantly higher than those in the HC group. Furthermore, the serum apoptosis levels in the DS group were significantly higher than the levels in the NDS group.Conclusion: This study suggests that increased levels of apoptosis may be implicated in the pathophysiology of DS syndrome. However, further studies are needed to support the role of apoptosis in DS.Keywords: apoptosis, etiology, deficit, psychosis
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