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RISS 인기검색어
- 검색키워드
- 저자 : Fatih Karababa (검색결과 4 건)
- 무료
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Microstructural Changes of Anterior Corona Radiata in Bipolar Depression
I. Fatih Karababa,Huseyin Bayazıt,Nihat Kılıçaslan,Mustafa Celik,Hasan Cece,Ekrem Karakas,Salih Selek 대한신경정신의학회 2015 PSYCHIATRY INVESTIGATION Vol.12 No.3
ObjectiveaaIn bipolar disorder, dysregulation of mood may result from white matter abnormalities that change fiber tract length and fiber density. There are few studies evaluating the white matter microstructural changes in bipolar I patients (BD) with depressive episodes. The present study aimed to evaluate anterior corona radiata in BD patients with depressive episode using Diffusion Tensor Imaging (DTI). MethodsaaTwenty-one patients with bipolar depression and 19 healthy controls were investigated and groups were matched for age and gender. Diffusion-weighted echoplanar brain images (DW-EPI) were obtained using a 1.5 T MRI scanner. Regions of interest (ROIs) were manually placed on directional maps based on principal anisotropy. Apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values of white matter were measured in the anterior corona radiata (ACR) bilaterally by diffusion tensor imaging. ResultsaaThere was not a significant difference between groups of age and gender (p>0.05). Significantly lower FA was observed in bilateral ACR in bipolar patients with depression compared with healthy individuals. And there is significantly higher ADC values in the left frontal corona radiate in bipolar patients. ConclusionaaWhite matter abnormalities can be detected in patients with BD using DTI. The neuropathology of these abnormalities is unclear, but neuronal and axonal loss, myelin abnormalities and reduced white matter fiber density are likely to be relevant.
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Investigation of Dysregulation of Several MicroRNAs in Peripheral Blood of Schizophrenia Patients
Mehmet Akif Camkurt,Fatih Karababa,Mehmet Emin Erdal,Hüseyin Bayazıt,Sultan Basmacı Kandemir,Mustafa Ertan Ay,Hasan Kandemir,Özlem İzci Ay,Erdinç Çiçek,Salih Selek,Bahar Taşdelen 대한정신약물학회 2016 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.14 No.3
Objective: The prevalence of schizophrenia is 1%, and it is a debilitating disorder that often results in a shortened lifespan. Peripheral blood samples are good candidates to investigate because they can be easily drawn, and they are widely studied in psychiatric disorders. MicroRNAs are small non-coding RNA transcripts. They regulate the expression of genes by binding to the 3’-untranslated region (UTR) of mRNAs and pointing them to degrade. In this study, we aimed to investigate the expression of miR-9-5p, miR-29a-3p, miR-106-5p, miR-106b-5p, miR-107, miR-125a-3p, and miR-125b-3p in schizophrenia patients and healthy controls. Methods: We collected blood samples from 16 patients with schizophrenia and 16 healthy controls. MicroRNAs were measured with reverse transcriptase polymerase chain reaction. Results: Schizophrenia patients showed statistically significant upregulation of five microRNAs: miR9-5p (p=0.002), miR29a-3p (p<0.001), miR106b-5p (p=0.002), miR125a-3p (p<0.001), and miR125b-3p (p=0.018). Conclusion: Our results increased the value of the miR106 and miR29 families as potentially and consistently dysregulated in psychiatric disorders. Our results should be considered preliminary, and they need confirmation in future studies with larger sample sizes.
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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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Evaluation of Oxidant/Antioxidant Status and Cytokine Levels in Patients with Cannabis Use Disorder
Huseyin Bayazit,Salih Selek,Ibrahim Fatih Karababa,Erdinc Cicek,Nurten Aksoy 대한정신약물학회 2017 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.15 No.3
Objective: Cannabis is the most commonly used illegal drug in the world and it has several adverse effects such as anxiety, panic reactions and psychotic symptoms. In this study, we aimed to evaluate oxidant, anti-oxidant status and cytokine levels in individuals with cannabis use disorder. Methods: Thirty-four patients with cannabis use disorder and 34 healthy controls were enrolled to the study. Serum total antioxidant status, total oxidant status and cytokine levels were investigated in patients with cannabis use disorder and healthy controls. Results: We found increased levels of total oxidant status, oxidative stress index and interleukin (IL) 1, IL-6, IL-8, and tumor necrosis factor (TNF) in individuals with cannabis dependency compared to healthy people. When we compared total antioxidant status, IL-12, and interferon (IFN) levels, there were no differences in both groups. There was positive correlation between IL-6 and total oxidant status, oxidative stress index levels. Conclusion: The oxidative balance of individuals with cannabis use disorder was impaired and they had higher levels of IL-1, IL-6, IL-8, and TNF-, which is a pro-inflammatory cytokine and indicates increased inflammation compared to healthy controls. Thus, these findings suggest that cannabis increased inflammation and impaired the oxidative balance.
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