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Dive into the research topics where Yakup Albayrak is active.

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Featured researches published by Yakup Albayrak.


Psychiatry Research-neuroimaging | 2011

Relationship of trait impulsivity with clinical presentation in euthymic bipolar disorder patients

Okan Ekinci; Yakup Albayrak; Aslı Erkan Ekinci; Ali Çayköylü

The purpose of this study was to examine trait impulsivity in patients with bipolar disorder and explore the possible connections between impulsivity and clinical presentation of the illness. Diagnoses were based on the Structured Clinical Interview for DSM-IV. The sociodemographic and clinical properties of 71 patients with bipolar disorder, who were euthymic according to Young Mania Rating Scale and Hamilton Depression Scale scores, were recorded. Their trait impulsivity was evaluated by using the Barratt Impulsiveness Scale (BIS) and impulsivity subscale of the Temperament and Character Inventory, and the results were compared with 50 age- and sex-matched healthy controls and among patients with different clinical properties. All BIS-11 subscale scores were higher in bipolar than in comparison subjects. There were no effects of education and age. Elevated BIS-11 scores were associated with predominant depressive polarity, longer duration of illness and a history of psychotic mood episodes and suicide attempts. These relationships persisted when age, gender, and education were taken into account. These results show that after accounting for common confounding factors, trait-like impulsivity was substantially higher in subjects with bipolar disorder than in nonbipolar comparison subjects and may vary according to different clinical presentations.


Comprehensive Psychiatry | 2012

The relationship between cognitive insight, clinical insight, and depression in patients with schizophrenia.

Okan Ekinci; Görkem Karakaş Uğurlu; Yakup Albayrak; Murat Arslan; Ali Çayköylü

Despite comorbid depression being relatively common even in subjects with schizophrenia, to the best of our knowledge, there is, to date, no report in the literature specifically and detailed examining the cognitive and clinical insight in subjects with schizophrenia and a comorbid depressive syndrome. Hence, in this study, we sought to compare the cognitive and clinical insight in our subjects with schizophrenia with and without a comorbid depressive syndrome. We found that participants in the depressive group scored significantly higher on self-reflectiveness and the reflectiveness-certainty (R-C) index scores than those in the nondepressive group. There was no significant difference among groups on the Scale for the Assessment of Positive Symptoms, Scale for the Assessment of Negative Symptoms, and clinical insight scores assessed by the Scale to Assess Unawareness of Mental Disorder. In addition, self-reflectiveness scores significantly correlated with depression, observed depression, hopelessness, and suicidality subscores of the Calgary Depression Scale for Schizophrenia. A better understanding of the cognitive component of insight in schizophrenia with comorbid depression may contribute to develop more efficient cognitive strategies, thus improving patient outcome. However, clinicians should be aware of the possibility of exacerbating a sense of hopelessness and suicide risk during the interventions that improve cognitive insight.


Psychiatry Investigation | 2013

Relationship between SSRIs and Metabolic Syndrome Abnormalities in Patients with Generalized Anxiety Disorder: A Prospective Study.

Murat Beyazyüz; Yakup Albayrak; Oğuzhan Bekir Eğilmez; Neslihan albayrak; Elmas Beyazyüz

Objective SSRIs are some of the most widely prescribed medications in the world. In addition to their effectiveness, SSRIs were reported to be associated with the side effects of weight gain, sexual dysfunction, drug interactions, extrapyramidal symptoms and discontinuation symptoms. However, the effects of SSRIs on metabolic parameters are poorly understood. Methods This study aims to describe the effects of SSRIs on the metabolic parameters of drug-naive first episode patients with generalized anxiety disorder. Ninety-seven female patients aged 20-41 years without any metabolic or psychiatric comorbidity were included in the study. Fluoxetine, sertraline, paroxetine, citalopram and escitalopram were randomly given to the patients. Metabolic parameters, including BMI, waist circumference and the levels of fasting glucose, total cholesterol, triglyceride, HDL, LDL and blood pressure, were measured before and after 16 weeks of treatment. Results In the paroxetine group, there was a significant increase in the parameters of weight, BMI, waist circumference, fasting glucose, total cholesterol, LDL and triglyceride after 16 weeks of treatment. There were significant increases in the levels of triglyceride in the citalopram and escitalopram groups. In the sertraline group, the total cholesterol level increased after treatment. In the fluoxetine group, there were significant reductions in the parameters of weight, total cholesterol and triglyceride. Conclusion To our knowledge, this study is the first to prospectively describe metabolic syndrome abnormalities in patients with first episode generalized anxiety disorder. Although the effectiveness of the different SSRIs is similar, clinicians should be more careful when prescribing SSRIs to patients who have cardiac risk factors. Larger and lengthier controlled clinical trials are needed to explore the associations between SSRI use and metabolic syndrome.


Progress in Neuro-psychopharmacology & Biological Psychiatry | 2013

Reduced total antioxidant level and increased oxidative stress in patients with deficit schizophrenia: A preliminary study

Yakup Albayrak; Cüneyt Ünsal; Murat Beyazyüz; Ahmet Ünal; Murat Kuloğlu

INTRODUCTION Deficit schizophrenia (DS) is defined for identifying a relatively homogeneous subgroup of patients with diagnosis of schizophrenia, characterized by the presence of primary and enduring negative symptoms. There have been several studies which investigated the status of oxidative stress and total antioxidant level in patients with schizophrenia. However, there is not any study which researched differences between DS and nondeficit schizophrenia (NDS) in terms of status of oxidative stress and antioxidant level. We hypothesized that patients with DS would have different status of oxidative stress and antioxidant levels compared with patients with NDS. METHODS Twenty-three patients with DS, 42 patients with NDS and 31 age, sex and smoking status matched healthy controls (HC) were included to study. Five milliliters of blood was drawn from control subjects and patients for assessing total antioxidant potential (TAOP) and total peroxide levels (TPEROX). The ratio of TPEROX to TAOP is referred as oxidative stress index (OSI). RESULTS We noticed that serum TAOP level was significantly lower in DS group compared with NDS and HC groups. The OSI was also found to be higher in DS group compared with NDS and HC groups. Furthermore, serum TAOP level and status of OSI were similar between NDS and HC groups. CONCLUSION Our study is the first to demonstrate differences between DS and NDS in terms of status of oxidative stress and serum total antioxidant level. We suggest that our study represents novel and important results in terms of supporting provides and hypothesis which considered DS as a different disease entity with respect to NDS. Further studies are needed for investigating the status of antioxidants and oxidative stress and their clinical implications in deficit schizophrenia.


Psychiatry Investigation | 2012

Temperament and Character in Euthymic Major Depressive Disorder Patients: The Effect of Previous Suicide Attempts and Psychotic Mood Episodes

Okan Ekinci; Yakup Albayrak; Aslı Erkan Ekinci

Objective The purpose of this study was to examine personality traits of patients with major depressive disorder and explore the possible connections between personality and clinical and sociodemographic variables. Methods The sociodemographic and clinical properties of 80 patients with major depression, who were euthymic according to Hamilton Depression Scale scores, were recorded. Their personality was evaluated by using Temperament and Character Inventory and results were compared with 80 age- and sex-matched healthy controls. We used general linear model analysis to evaluate the manner in which the variables contributed to TCI scores. Results Remitted depressive patients scored significantly lower on on self-directedness and higher on harm avoidance than HC. Previous suicide attempts had a main effect only on harm avoidance while previous psychotic mood episodes were significantly associated with novelty seeking, self-directedness and cooperativeness. With respect to numeric clinical variables, only duration of illness was significantly and negatively correlated with NS and RD scores. Conclusion Patients with euthymic major depressive disorder may have significantly different personality traits than the normal population, and patients with different clinical and sociodemographic characteristics may show different personality patterns. In addition, assessment of major depressed patients by means of the Temperament and Character Inventory may be helpful to get a deeper insight into those personality traits underlying suicidality and the emergence of psychotic mood episode.


Neuropsychiatric Disease and Treatment | 2014

increased serum dehydroepiandrosterone sulfate in the first episode but not in subsequent episodes in male patients with schizophrenia

Murat Beyazyüz; Yakup Albayrak; Elmas Beyazyüz; Cüneyt Ünsal; Erol Göka

Background Many studies have investigated the relationship between blood levels of dehydroepiandrosterone (DHEA) and its sulfate ester (DHEA-S), cortisol, progesterone, and testosterone and the onset, prognosis, symptom severity, and treatment response of schizophrenia. In the present study, we assessed potential differences in blood levels of neurosteroids between drug-naïve first-episode patients with schizophrenia (FES), and drug-free patients with schizophrenia who were not in the first episode but were in a phase of acute exacerbation (DFP). Materials and methods The present study included 32 male FES, 28 male DFP, and 24 male healthy controls (HC). Groups were compared in terms of blood levels of adrenocorticotropic hormone (ACTH), cortisol, testosterone, progesterone, and DHEA-S. Results Blood levels of ACTH, cortisol, testosterone, and progesterone were similar among the groups. The mean value of serum DHEA-S was significantly different among the groups (P<0.001). The value of serum DHEA-S was higher in the FES group than in the DFP and HC groups (both P<0.001). The mean values of serum DHEA-S in the HC and DFP groups were found to be similar (P=0.33). Conclusion We suggest that higher values of DHEA-S in the FES group compared with both the DFP and HC groups indicate that this neurosteroid response is unique to first-episode schizophrenia patients. Further studies are needed to investigate the difference in blood levels of neurosteroids in different groups in terms of age of diagnosis.


Journal of Nervous and Mental Disease | 2011

Impulsivity in euthymic patients with major depressive disorder: The relation to sociodemographic and clinical properties

Okan Ekinci; Yakup Albayrak; Ali Çayköylü

The purpose of this study was to examine the trait impulsivity of patients with a major depressive disorder and to explore the possible connections between impulsivity and clinical and sociodemographic variables. The sociodemographic and clinical properties of 60 patients with major depression, who were euthymic according to Hamilton Depression Scale scores, were recorded. Their trait impulsivity was evaluated using the Barratt Impulsiveness Scale (BIS-11) and the impulsivity subscale of the Temperament and Character Inventory, and the results were compared with those of 50 age- and sex-matched healthy controls. We used general linear model analysis to evaluate the manner in which the variables contributed to BIS-11 scores. Some impulsivity scores were higher in those with a major depressive disorder than in comparison subjects. There were significant effects of education and sex in these differences. Elevated BIS-11 scores were associated with a history of psychotic mood episode and suicide attempts. These relationships persisted when age, sex, and education were taken into account. These results show that, after accounting for common confounding factors, trait-like impulsivity was substantially higher in subjects with major depressive disorder than in comparison subjects and may be associated with sociodemographic and clinical properties.


Clinical Neuropharmacology | 2011

Duloxetine-induced nocturnal bruxism resolved by buspirone: case report.

Yakup Albayrak; Okan Ekinci

Duloxetine is a serotonin-norepinephrine reuptake inhibitor which is generally safe and well tolerated. Antidepressants especially selective serotonin reuptake inhibitors (SSRIs) were associated with inducing bruxism; however, duloxetine-induced bruxism has not been reported yet. Here, we report a case of duloxetine-induced bruxism in a patient with generalized anxiety disorder.


Klinik Psikofarmakoloji Bulteni-bulletin of Clinical Psychopharmacology | 2010

Phenomenology of Delusions and Hallucinations in Patients with Schizophrenia

Omer Gecici; Murat Kuloglu; Ozkan Guler; Omer Ozbulut; Erhan Kurt; Sinay Önen; Okan Ekinci; Dilek Yesilbas; Ali Çayköylü; Murat Emul; Gazi Alatas; Yakup Albayrak

ABSTRACTBackground: The aim of this study is to investigate the influence of living in different geographic regions of the same country on the phenomenology of schizophrenic delusions and hallucinations in two groups of schizophrenic patients.Methods: A total of 373 schizophrenic patients hospitalized in three different psychiatric hospitals in Turkey were recruited, and their delusions were classified by using the classification system developed by Huber and Gross. Patients were categorized with respect to regions in which they lived. Group 1 represented the Western region of Turkey, and group 2 represented the Central region of Turkey.Results: Delusions of persecution and reference were detected frequently in both genders and groups. Delusions of poisoning and erotomania were more prevalent in females than in males. The most frequent auditory hallucinations included hearing voices conversing and voices commenting. Seeing goblins was the most prevalent theme in visual hallucinations.Conclusions: The resu...


Clinical Neurology and Neurosurgery | 2009

A case study of neuro-psycho-Behçet's syndrome presenting with psychotic attack.

Orhan Deniz; Ali Çayköylü; Gonul Vural; Yakup Albayrak; Şadiye Temel; İsmail Aydın; Murat Kuloglu

Behçets disease is a multisystem inflammatory disorder that presents with a classic triad of recurrent oral and genital ulcerations and uveitis with hypopyon. The initial symptom of Behçets disease is neurological in only 3% of cases. Although Neuro-Behçets Syndrome commonly presents with focal neurological symptoms, it is possible that psychiatric symptoms could be the first manifestation of the disease. To our knowledge, this is the first case report of Neuro-Behçets Syndrome that presents with an acute psychotic attack.

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Ali Çayköylü

Yıldırım Beyazıt University

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Görkem Karakaş Uğurlu

Yıldırım Beyazıt University

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Gamze Erfan

Namik Kemal University

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