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Dive into the research topics where Oguzhan Bekir Egilmez is active.

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Featured researches published by Oguzhan Bekir Egilmez.


Comprehensive Psychiatry | 2016

Can the retinal ganglion cell layer (GCL) volume be a new marker to detect neurodegeneration in bipolar disorder

Aysun Kalenderoglu; Ayse Sevgi-Karadag; Mustafa Çelik; Oguzhan Bekir Egilmez; Behice Han-Almis; Murat Eren Ozen

PURPOSE The aim of this study was to compare the ganglion cell layer (GCL) volume and retinal nerve fiber layer (RNFL) thickness in bipolar patients and controls using optic coherence tomography to demonstrate neurodegeneration in bipolar disorder. METHODS This study involved 43 euthymic bipolar I patients who were being followed by the Psychiatry Department of Adiyaman University Medical School and 43 healthy volunteers as controls. Optic coherence tomography (OCT) measurements were performed for both groups. The RNFL thickness and GCL volumes were measured and recorded automatically by a spectral OCT device. FINDINGS No differences in sociodemographics were detected between groups, except for unemployment status, which was significantly higher in the patient group. The RNFL thickness was lower in patients compared with controls at all measured regions, and this decrease was statistically significant for the global RNFL measurement. The GCL volume was also significantly lower in the patient group. There was a significant negative correlation between the disease parameters, such as the disease duration, YMRS score, CGI score, and number of hospitalizations, and GCL volume. DISCUSSION These findings suggest that neurodegeneration occurs during the course of bipolar disorder. This degeneration may be demonstrated by decreased GCL at early stages, and as the disease progresses, involvement of other retinal layers, such as the RNFL and IPL, may be observed.


Noro Psikiyatri Arsivi | 2016

Spontaneous Ejaculations Associated with Aripiprazole

Oguzhan Bekir Egilmez; Mustafa Çelik; Aysun Kalenderoglu

Sexual side effects are common with antipsychotic use. Spontaneous ejaculations without sexual arousal have been previously described with several typical and atypical antipsychotics. We report the case of a man who had spontaneous ejaculations after stopping risperidone and starting 30 mg/day aripiprazole. Spontaneous ejaculations ceased 3 days after decreasing the aripiprazole dose to 15 mg/day. He denied sexual fantasies or increased sexual desire during the period in which he had spontaneous ejaculations. The partial agonistic effect of aripiprazole on D2 receptors may have augmented the mesolimbic dopaminergic pathway, which was suppressed by risperidone, causing spontaneous ejaculations in this patient. Serotoninergic effects of aripiprazole should also be considered. This unusual side effect should be questioned, particularly in patients who recieve aripiprazole after D2-blocking antipsychotics; otherwise, this side effect may cause embarrassement and noncompliance.


Journal of Affective Disorders | 2016

Optic coherence tomography shows inflammation and degeneration in major depressive disorder patients correlated with disease severity

Aysun Kalenderoglu; Mustafa Çelik; Ayse Sevgi-Karadag; Oguzhan Bekir Egilmez

BACKGROUND Previous research has consistently detected inflammation in the etiology of depression and neuroimaging studies have demonstrated gray matter abnormalities implying a neurodegenerative process in depression. The aim of this study was to compare ganglion cell layer (GCL), and inner plexiform layer (IPL) volumes and retinal nerve fiber layer (RNFL) thickness between first episode and recurrent major depressive disorder (MDD) patients and controls using optic coherence tomography (OCT) in order to detect findings supporting a degenerative process. Also choroid thicknesses of the same groups were compared to examine effects of inflammation on MDD. METHODS This study included 50 recurrent MDD patients, 50 first episode MDD patients and 50 controls. OCT measurements were performed by a spectral OCT device. GCL and IPL volumes and RNFL and choroid thicknesses were measured automatically by the device. RESULTS GCL and IPL volumes were significantly smaller in recurrent depression patients than first episode patients and in all MDD patients than controls. Also there were significant negative correlations between their volumes and disease severity parameters such as Ham-D and CGI scores, and disease duration. RNFL thicknesses were also lower in recurrent MDD patients than first episode patients and all MDD patients than controls but statistical significance was achieved only for global RNFL and temporal superior RNFL. Mean choroid thickness was higher in MDD patients than controls and in first episode MDD patients than recurrent MDD patients. LIMITATIONS Cross-sectional design of our study limits conclusions about progressive degeneration during the course of MDD. Lack of a control neuroimaging method like magnetic resonance imaging makes it hard to draw firm conclusions from our results. CONCLUSIONS OCT finding of decreased GCL and IPL volumes supports previous research suggesting degeneration in MDD. OCT may be an important tool to track neurodegeneration in patients with major depression. Considering RNFL to be the latest layer that will be affected during course of degeneration, GCL and IPL volumes appear to be better parameters to follow. In addition, choroid may be an important structure to detect acute attack period and to follow inflammatory process in MDD like in systemic inflammatory diseases.


Journal of Immunoassay & Immunochemistry | 2018

Complete blood count alterations due to the opioid use: what about the lymphocyte-related ratios, especially in monocyte to lymphocyte ratio and platelet to lymphocyte ratio?

Mehmet Hamdi Orum; Mahmut Zabit Kara; Oguzhan Bekir Egilmez; Aysun Kalenderoglu

ABSTRACT This study was designed to compare the complete blood count values of opioid users (N = 61) and healthy subjects (N = 61), particularly monocyte-to-lymphocyte ratio (MLR) and platelet-to-lymphocyte ratio (PLR). PLR, MLR, and percentage of monocyte (MONO%) were significantly lower in opioid use disorder (OUD) group (P = 0.012, P = 0.005, P = 0.000). The area under the ROC curve of MLR and PLR levels for OUD was 0.349 and 0.368. MONO% correlated with substance use duration. Measurements like lymphocyte-related ratios and MONO% in opioid use can be important in substance monitoring, detection, and differentiation of acute and chronic conditions.


Psychiatry and Clinical Psychopharmacology | 2018

Intercourse type of situational anejaculation or inability to ejaculate intra-vaginally: three case reports from a conservative islamic community

Oguzhan Bekir Egilmez; Mehmet Hamdi Orum

ABSTRACT Anejaculation is defined as the inability to ejaculate semen despite sexual stimulation by intercourse or masturbation. It may result from organic or psychological causes and can be classified as orgasmic, anorgasmic, and situational. Situational anejaculation may be present in intercourse type. This means existence of ejaculation by masturbation, but not during sexual intercourse. Performance anxiety, hostility toward the partner, dysfunctional psychosexual development, and unconscious desire to avoid pregnancy are the possible underlying conditions. We herein report situational anejaculation in 24-, 26-, 34-year-old males who presented with inability to ejaculate intra-vaginally since they got married. All of them were the sole males in their family, had a childhood in a conservative community, and had arranged marriages. Due to the negative aspects of psychosexual counselling in rural societies, it was not possible to continue the follow-up and treatment of patients. Despite this, the authors conclude that this clinical course of situational intercourse anejaculation suggests a psychological problem in these patients.


Journal of Immunoassay & Immunochemistry | 2018

Relationship between immune cells and alcohol dependents and controls: what about the lymphocyte-related ratios?

Mehmet Hamdi Orum; Mahmut Zabit Kara; Oguzhan Bekir Egilmez

Dear Editor,Substance use disorders continue to maintain its importance in terms of community health.[1,2] Alcohol dependence is a set of behavioral, physiological, and cognitive manifestations who...


Journal of Immunoassay & Immunochemistry | 2018

Mean platelet volume and neutrophil to lymphocyte ratio as parameters to indicate the severity of suicide attempt

Mehmet Hamdi Orum; Mahmut Zabit Kara; Oguzhan Bekir Egilmez

ABSTRACT This study was designed to compare the complete blood count (CBC) values of 38 violent suicidal attempt (VSA) and 38 nonviolent suicidal attempt (NVSA) patients and 38 healthy controls, particularly mean platelet volume (MPV) and neutrophil to lymphocyte ratio (NLR). MPV was found to be significantly higher (P = 0.000), and PLT was found to be significantly lower in the VSA group (P = 0.001). NLR was found to be significantly higher (P = 0.005) in the VSA group. The area under the receiver operating characteristic curve of MPV levels for VSA was 0.78 and 0.68 for NLR in the VSA group when compared with the NVSA group.


Medicine Science | International Medical Journal | 2018

Addiction profiles of patients with substance dependency living in Adiyaman province

Mehmet Hamdi Orum; Ali Kustepe; Mahmut Zabit Kara; Ebru Dumlupinar; Oguzhan Bekir Egilmez; Murat Eren Ozen; Aysun Kalenderoglu


Journal of Mood Disorders | 2017

Topiramate Add-On for Treatment of Migraine-Type Headache Cures Alcohol Dependence: A Case Study

Murat Eren Ozen; Aysun Kalenderoglu; Mehmet Hamdi Orum; Oguzhan Bekir Egilmez


The Journal of Neurobehavioral Sciences | 2018

Investigation of serum brain-derived neurotrophic factor (BDNF) levels in patients diagnosed with schizophrenia without antipsychotic treatment history

Oguzhan Bekir Egilmez; Mehmet Hamdi Orum; Elmas Beyazyüz; Makbule Aydemir

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