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Dive into the research topics where Gül Eryılmaz is active.

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Featured researches published by Gül Eryılmaz.


Neuropsychiatric Disease and Treatment | 2015

The relationship of psychological trauma with trichotillomania and skin picking.

Eylem Özten; Gökben Hızlı Sayar; Gül Eryılmaz; Gaye Kağan; Sibel Işık; Oğuz Karamustafalıoğlu

Objective Interactions between psychological, biological and environmental factors are important in development of trichotillomania and skin picking. The aim of this study is to determine the relationship of traumatic life events, symptoms of post-traumatic stress disorder and dissociation in patients with diagnoses of trichotillomania and skin picking disorder. Methods The study included patients who was diagnosed with trichotillomania (n=23) or skin picking disorder (n=44), and healthy controls (n=37). Beck Depression Inventory, Traumatic Stress Symptoms Scale and Dissociative Experiences Scale were administered. All groups checked a list of traumatic life events to determine the exposed traumatic events. Results There was no statistical significance between three groups in terms of Dissociative Experiences Scale scores (P=0.07). But Beck Depression Inventory and Traumatic Stress Symptoms Scale scores of trichotillomania and skin picking groups were significantly higher than the control group. Subjects with a diagnosis of trichotillomania and skin picking reported statistically significantly higher numbers of traumatic and negative events in childhood compared to healthy subjects. Conclusion We can conclude that trauma may play a role in development of both trichotillomania and skin picking. Increased duration of trichotillomania or skin picking was correlated with decreased presence of post-traumatic stress symptoms. The reason for the negatively correlation of severity of post-traumatic stress symptoms and self-harming behavior may be speculated as developing trichotillomania or skin picking symptoms helps the patient to cope with intrusive thoughts related to trauma. Future longitudinal research must focus on whether trauma and post-traumatic stress or trichotillomania and skin picking precede the development of mental disorder.


Neuromodulation | 2015

Follow-up study of children whose mothers were treated with transcranial magnetic stimulation during pregnancy: preliminary results.

Gül Eryılmaz; Gökben Hızlı Sayar; Eylem Özten; Işıl Göğcegöz Gül; Ozgur Yorbik; Nuket Isiten; Eda Bağcı

The purpose of this study is to determine the impact of repetitive transcranial stimulation (rTMS) treatment during pregnancy on neurodevelopment of children.


Annals of General Psychiatry | 2013

Aripirazole augmentation in clozapine-associated obsessive-compulsive symptoms in schizophrenia.

Gül Eryılmaz; Gökben Hızlı Sayar; Eylem Özten; Işıl Göğcegöz Gül; Oğuz Karamustafalıoğlu

ObjectivePatients with schizophrenia often experience comorbid obsessive-compulsive symptoms. Within these patients, a significant subgroup developed secondary obsessive-compulsive symptoms during treatment with clozapine.MethodIn this paper, we report on four cases in which adjunctive therapy with aripiprazole was tested to alleviate obsessive-compulsive symptoms in schizophrenia.ResultsAll four patients had a significant improvement in obsessive-compulsive symptoms. The combination of clozapine and aripiprazole was well tolerated.ConclusionThis case series demonstrates the clinical efficacy of aripiprazole adjunctive therapy with clozapine in schizophrenic patients with comorbid obsessive-compulsive symptoms. Larger-sampled and controlled studies are required in order to test and confirm these observations.


Neuropsychiatric Disease and Treatment | 2014

Decreased mean platelet volume in panic disorder

Işıl Göğcegöz Gül; Gül Eryılmaz; Eylem Özten; Gökben Hızlı Sayar

Aim The relationship between psychological stress and platelet activation has been widely studied. It is well known that platelets may reflect certain biochemical changes that occur in the brain when different mental conditions occur. Platelet 5-hydroxytryptamine (5-HT) is also extensively studied in psychiatry. The mean platelet volume (MPV), the accurate measure of platelet size, has been considered a marker and determinant of platelet function. The aim of the present study was to search for any probable difference in the MPV of subjects with panic disorder (PD). Methods A total of 37 drug-free subjects, aged 18 to 65 years, diagnosed with PD, with or without agoraphobia, according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth edition (DSM-IV) criteria and 45 healthy control subjects were included in the study. Platelet count and MPV were measured and recorded for each subject. Results There were no statistically significant differences between groups in terms of female/male ratio, age, or body mass index between the PD group and control group (P=0.91, P=0.82, and P=0.93, respectively). The MPV was found to be significantly lower in the PD group compared with the control group (8.8±0.9 fL vs 9.2±0.8 fL; P=0.02). All the participants had MPV values in the standard range of 6.9–10.8 fL. Conclusion We concluded that abnormalities of the 5-HT1A receptor function in the central nervous system of subjects with a diagnosis of PD are also mirrored in as an alteration in platelet activity. Measurements of platelet activity may be used as a tool for neuropsychiatric and psychopharmacological research and for studying how certain mental diseases and medications affect the central nervous system.


Journal of Affective Disorders | 2015

RETRACTED: Are uric acid plasma levels different between unipolar depression with and without adult attention deficit hyperactivity disorder?

Eylem Özten; Sermin Kesebir; Gül Eryılmaz; Nevzat Tarhan; Oğuz Karamustafalıoğlu

BACKGROUND The aim of our study is to compare uric acid plasma levels in patients with unipolar depression between those with Attention deficit hyperactivity disorder (ADHD) comorbidity and those without. Our hypothesis is that uric acid plasma levels may be higher in unipolar depressive patients with adult ADHD than without ADHD. METHODS Sixty four patients diagnosed with MDD were investigated, among which 28 patients had been diagnosed with ADHD according to DSM5. 28 patients were ADHD. 36 patients were diagnosed as not having ADHD. One of the criteria was including cases that had not started using medication for the current depressive episode. The control group (HC) consisted of 43 healthy staff members from our hospital who had no prior psychiatric admission or treatment history and matched with the patient group in terms of age and gender. Blood samples were obtained, and plasma uric acid levels were recorded in mg/dl after being rotated for 15min in a centrifuge with 3000 rotations and kept at -80°C. RESULTS Uric acid plasma levels 5.1±1.6 in unipolar depression and ADHD group, 4.6±1.8 in unipolar depression group. Uric acid plasma levels were higher in the comorbid unipolar depression and ADHD group than in the unipolar depression and healthy control (HC) groups (F= 4.367, p= 0.037). There was no correlation between ADHD (predominantly inattentive type) and uric acid plasma levels (p>0.05). LIMITATIONS The limitation of this study is the small number of sample and one of the criteria was including cases that had not started using medication for the current depressive episode. CONCLUSION The identification of a different etiologic process of biological markers may lead to a better understanding of the physiological mechanisms involved in drive and impulsivity and may suggest different potential targets for therapeutic intervention.


Neuropsychiatric Disease and Treatment | 2014

Influence of valproate on the required dose of propofol for anesthesia during electroconvulsive therapy of bipolar affective disorder patients.

Gökben Hızlı Sayar; Gül Eryılmaz; Siban Şemieoğlu; Eylem Özten; Işıl Göğcegöz Gül

Background Propofol is often used as an anesthetic agent for electroconvulsive therapy (ECT). In recent studies, propofol was shown to possess significant seizure-shortening properties during ECT. “Valproate” is a mood stabilizer used mainly in the treatment of bipolar affective disorder. It is reported that valproate, being an anticonvulsant, raises the seizure threshold, thus decreases the efficacy of ECT treatment. Aim The purpose of our study was to compare the dose of propofol in valproate-using patients and valproate-free patients. Methods In an open design, 17 patients with bipolar affective disorder manic episodes who were to be treated with valproate and ECT in combination, were compared with 16 manic-episode patients who were to be treated with ECT but not valproate. The two groups were compared on the basis of electroencephalography-registered seizure duration and the propofol dosage required to induce anesthesia. Results Valproate, compared with no valproate treatment, results in a decrease in the propofol dose required to induce anesthesia. In the valproate group of study participants, seizure duration was significantly shorter than in the valproate-free group. Conclusion The results suggest that valproate reduces the dose of propofol required for anesthesia during ECT treatment in patients with bipolar affective disorder manic episodes. Although propofol is a safe and efficacious anesthetic for ECT treatment, lower doses of propofol should be used to induce anesthesia for patients under valproate treatment. When the clinician needs to prolong seizure duration in patients treated with valproate, interruption of the valproate treatment or an anesthetic agent other than propofol should be considered.


Revista De Psiquiatria Clinica | 2015

Dissociative experiences in bipolar disorder II: Are they related to childhood trauma and obsessive-compulsive symptoms?

Gül Eryılmaz; Sermin Kesebir; Işıl Göğcegöz Gül; Eylem Özten; KayIhan Oğuz KaramustafalIOğlu

Objective The aim of this study is to investigate the presence of dissociative symptoms and whether they are related to childhood trauma and obsessive-compulsive symptoms in bipolar disorder type II (BD-II). Methods Thirty-three euthymic patients (HDRS<8, YMRS<5) and 50 healthy subjects were evaluated by SCID-I and SCID-NP. We excluded all first and second-axis comorbidities. All patients and healthy subjects were examined with the Dissociative Experiences Scale (DES), Childhood Trauma Questionnaire (CTQ-53), and Yale-Brown Obsessive-Compulsive Disorder scale (Y-BOCS). Results In pairwise comparisons between the BD-II and control groups, the total CTQ, emotional abuse, emotional neglect, DES, and total Y-BOCS scores in the BD-II group were significantly higher than those in the control group (p < 0.05). There were five cases with DES scores over 30 (15.2%) and one case (2%) in the control group. DES was weakly correlated with total CTQ and Y-BOCS in patients diagnosed with BD-II (r = 0.278, p < 0.05 and r = 0.217, p < 0.05, respectively). While there was no correlation between total CTQ and Y-BOCS, the CTQ sexual abuse subscale was found to be related to Y-BOCS (r = 0.330, p < 0.05). Discussion These results suggest that there is a relation between childhood traumas and obsessive-compulsive symptoms, or that dissociative symptoms are more associated with anxiety than obsessive symptoms, which prevents the increase of obsessive-compulsive symptoms in BD-II.


Psychogeriatrics | 2015

Depressive symptoms associated with dabigatran: a case report.

Gül Eryılmaz; Asli Enez Darcin; Esra Saglam; Işıl Göğcegöz Gül

Several studies have reported that depression and anxiety are very common in atrial fibrillation due to impaired quality of life. Dabigatran is an anti‐aggregation agent used for the treatment of atrial fibrillation. In terms of drug interactions during treatment with dabigatran, patients suffering from minor depression are reported to be a population at risk. This report is about a 68‐year‐old man whose depressive symptoms were aggravated after taking dabigatran for atrial fibrillation. The case is discussed in terms of his aggravated depressive symptoms and the interaction between his prescription medications.


Noro Psikiyatri Arsivi | 2015

The Phenomenology of Delusions in a Patient with Disorders of Sex Development.

Işıl Göğcegöz Gül; Gökben Hızlı Sayar; Eylem Özten; Gül Eryılmaz

Abnormal development of the external and internal genital organs and male pseudohermaphrodite-type disorders of sex development is one of the conditions that creates problem in determination of gender. In this case report, our aim is to discuss how disorders with psychotic symptoms may affect different cultural life styles, circumstances, experience, delusion contents of identification and acceptance in a patient diagnosed with bipolar affective disorder, and with male-pseudohermaphroditism during adulthood.


Therapeutic Drug Monitoring | 2015

Plasma Methylphenidate Levels in Youths With Attention Deficit Hyperactivity Disorder Treated With Oros Formulation

Ozgur Yorbik; Caner Mutlu; Selma Ozilhan; Gül Eryılmaz; Nuket Isiten; Serdar Alparslan; Esra Saglam

Background: There are limited studies investigating the relationship between oral release osmotic system-methylphenidate (OROS-MPH) doses and plasma methylphenidate (MPH) concentrations in children and adolescents. The aim of this study was to investigate the relationship between the doses of OROS-MPH and the plasma levels of the drug. We also examined the effects of the other drugs including aripiprazole, risperidone, fluoxetine, and sertraline on the levels of the MPH in the plasma. Methods: The files of 100 attention deficit hyperactivity disorder (ADHD) subjects (76 male, 24 female) who were diagnosed as ADHD according to the Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition criteria, were screened. The ages of subjects were between 6 and 18 years (mean = 11.5 ± 3.8 years). Plasma MPH levels were determined by high-performance liquid chromatography–tandem mass spectrometry assay. Results: Daily mean OROS-MPH dose used in ADHD children was 0.7 ± 0.2 mg/kg (range: 0.3–1.3 mg/kg). The mean plasma OROS-MPH was 11.6 ± 7.3 ng/mL (range: 0.5–43.4 ng/mL). There was no group difference in the mean plasma MPH and dose-related MPH levels between the groups that used any additional drug including aripiprazole (n = 25), risperidone (n = 10), fluoxetine (n = 16), sertraline (n = 10), and did not use these drugs (P > 0.05). There was a positive correlation between the OROS-MPH doses (mg/kg) and the blood MPH levels (Pearson correlation = 0.40; P < 0.001). The plasma levels of MPH were found to be less than 13 ng/mL in 65% of the subjects. Conclusions: Our findings point to the fact that plasma levels of MPH show a wide range of changes at similar doses, correlate positively with the doses and, as expected, are not affected by using risperidone, sertraline, fluoxetine, and aripiprazole. Therapeutic drug monitoring may help to optimize MPH dose in patients not responding to treatment or in those experiencing serious side effects, but not in routine clinical practice. The presence of intermediate dose formulations such as 45-mg tablets for OROS-MPH may contribute to the optimization.

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