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- 저자 : Cemal Bulut (검색결과 4 건)
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Mehmet Cemal Kaya,Yasin Bez,Ibrahim Fatih Karababa,Ali Emhan,Nurten Aksoy,Mahmut Bulut,Mehmet Gunes,Abdullah Atli,Salih Selek 대한신경정신의학회 2013 PSYCHIATRY INVESTIGATION Vol.10 No.3
Objective In recent years, many published studies have focused on the relationship between oxidative stress and psychiatric disorders. However, studies in generalized anxiety disorder (GAD) are few despite relatively high prevalence rates. In an attempt to fill this gap in the literature we aimed to measure serum levels of free sulphydryl, an important member of antioxidant defense mechanisms, of the patients with GAD. Methods A total of 35 (23 female, 12 male) GAD patients without any other co-morbid medical or psychiatric disorder and 35 (23 female, 12 male) healthy controls have been included in the study. Disease severity of the patients were quantified by using the Hamilton Anxiety Rating Scale (HAM-A). Serum free sulphydryl group levels of patients and healthy controls were measured in an appropriate way. Results Mean level of serum sulphydryl groups was significantly lower in the patient group. There was a negative correlation between their level and the disease duration. However, they did not show any significant correlation with the disease severity. Conclusion Decreased serum sulphydryl level observed in pure GAD patients suggests an increased oxidative stress in these patients. Well designed future researches are needed to replicate our findings and to test the implications of the present study.
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Decreased Prolidase Activity in Patients with Posttraumatic Stress Disorder
Süleyman Demir,Mahmut Bulut,Abdullah Atli,I·brahim Kaplan,Mehmet Cemal Kaya,Yasin Bez,Pınar Güzel Özdemir,Aytekin Sır 대한신경정신의학회 2016 PSYCHIATRY INVESTIGATION Vol.13 No.4
ObjectiveaaMany neurochemical systems have been implicated in the development of Posttraumatic Stress Disorder (PTSD). The prolidase enzyme is a cytosolic exopeptidase that detaches proline or hydroxyproline from the carboxyl terminal position of dipeptides. Prolidase has important biological effects, and to date, its role in the etiology of PTSD has not been studied. In the present study, we aimed to evaluate prolidase activity in patients with PTSD. MethodsaaThe study group consisted of patients who were diagnosed with PTSD after the earthquake that occurred in the province of Van in Turkey in 2011 (n=25); the first control group consisted of patients who experienced the earthquake but did not show PTSD symptoms (n=26) and the second control group consisted of patients who have never been exposed to a traumatic event (n=25). Prolidase activities in the patients and the control groups were determined by the ELISA method using commercial kits. ResultsaaProlidase activity in the patient group was significantly lower when compared to the control groups. Prolidase activity was also significantly lower in the traumatized healthy subjects compared to the other healthy group (p<0.01). ConclusionaaThe findings of the present study suggest that the decrease in prolidase activity may have neuroprotective effects in patients with PTSD.
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Mehmet Güneş,Mehmet Akif Camkurt,Mahmut Bulut,Süleyman Demir,Aslıhan Okan İbiloğlu,Mehmet Cemal Kaya,Abdullah Atlı,İbrahim Kaplan,Aytekin Sir 대한정신약물학회 2016 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.14 No.4
Objective: Human serum paraoxonase (PON1) prevents lipids from peroxidation and functions as an antioxidant mechanism. Malonyldialdehyde (MDA) is the final product of lipid peroxidation and can be used as an indicator of oxidative stress. The aim of this study was to investigate PON1, MDA, and arylesterase (ARY) levels in schizophrenic patients who are taking typical, atypical, or combined (typical and atypical) antipsychotic drug treatment, with respect to those of healthy controls. Methods: We evaluated 41 patients (11 taking typical antipsychotics, 19 taking atypical antipsychotics, 11 taking combined antipsychotics) and 43 healthy controls. Results: MDA levels were higher in schizophrenic patients taking typical antipsychotics compared with healthy controls (p=0.001). ARY levels were higher in patients taking atypical antipsychotics compared with healthy controls (p=0.005). PON1 activity was similar in all groups. Conclusion: Our results indicate that treatment with typical antipsychotic drugs could be related to increased MDA levels; and antipsychotic medication may increase PON1 levels in schizophrenic patients.
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Eda Koksal,Necla Tulek,Meliha Cagla Sonmezer,Fatih Temocin,Cemal Bulut,Cigdem Hatipoglu,Fatma Sebnem Erdinc,Gunay Ertem 대한비뇨의학회 2019 Investigative and Clinical Urology Vol.60 No.1
Purpose: The aim of this study was to determine the prevalence and risk factors for community-acquired urinary tract infections (CA-UTIs) caused by extended-spectrum β-lactamase (ESBL) producing Escherichia coli and Klebsiella species. Materials and Methods: The patients diagnosed with CA-UTIs caused by E. coli or Klebsiella spp. were included in the study. All of the patients were compared to demographic characteristics, underlying diseases, urinary tract pathology, history of hospitalization, use of antibiotics according to ESBL positivity. Results: A total of 322 urine isolates were studied. Sixty-six patients (37.1%) of a total of 178 patients were ESBL positive E. coli and Klebsiella spp. Being over the age of sixty (odds ratio [OR], 1.90; p=0.03), history of renal stone (OR, 3.00; p=0.03), urinary tract anatomical of physiological disorder (OR, 2.17; p=0.01), urologic intervention (OR, 3.43; p<0.001), history of urinary tract surgery (OR, 3.10; p=0.01), history of urinary catheterization (OR, 3.43; p<0.001), and hospitalization for last 1 year (OR, 3.70; p=0.01) and antibiotic usage in the last 3 months (OR, 1.90; p=0.04) were found as significant risk factors for the producing of ESBL. However, gender and underlying disease were not related for ESBL production. Conclusions: In present study, high rate of ESBL positivity was detected in CA-UTIs. The increasing of infections caused by ESBL positive E. coli and Klebsiella spp. are bringing together a lot of the problem, such as antibiotic resistance and reducing treatment options for outpatients. Identification of underlying risk factors would be important for the development of preventive strategies.
KCI
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