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Dive into the research topics where Ayhan Bilgiç is active.

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Featured researches published by Ayhan Bilgiç.


Journal of Psychopharmacology | 2010

Depression, anxiety and obsessive–compulsive symptoms and quality of life in children with attention-deficit hyperactivity disorder (ADHD) during three-month methylphenidate treatment

Kağan Gürkan; Ayhan Bilgiç; Serhat Türkoğlu; Birim Günay Kılıç; Ayla Aysev; Runa Uslu

The current study was designed to investigate the changes that occur in depression, anxiety, obsessive—compulsive symptoms and health-related quality of life during methylphenidate (MPH) treatment in children with attention-deficit hyperactivity disorder (ADHD). Forty-five treatment naive children with ADHD, aged 8—14, were assessed based on self, parent and teacher reports at the baseline and at the end of the first and third month of MPH treatment regarding changes in inattention, hyperactivity, impulsivity, depression, anxiety and obsessive—compulsive symptoms. Changes in the quality of life were also noted. Repeated measures of analysis of variance (ANOVA) tests with Bonferroni corrections were conducted in order to evaluate the data. Symptoms of inattention, hyperactivity and impulsivity were significantly reduced (p < 0.017) following a three-month MPH treatment. There were significant decreases in depression (p = 0.004), trait anxiety (p = 0.000) and checking compulsion symptom scores (p = 0.001). Moreover, parents reported significant improvements in psychosocial (p = 0.001) and total scores (p = 0.009) of quality of life, despite no change in physical health scores (p > 0.05). Children’s ratings of quality of life measures showed no significant changes in physical health and psychosocial scores (p > 0.05), while total scores significantly improved (p = 0.001) after the treatment. Over a three-month MPH treatment, depression, trait anxiety and checking compulsion symptoms decreased and quality of life seemed to improve along with those of inattention, hyperactivity and impulsivity.


International Journal of Psychiatry in Clinical Practice | 2015

Internet addiction is related to attention deficit but not hyperactivity in a sample of high school students.

Savaş Yılmaz; Sabri Hergüner; Ayhan Bilgiç; Ümit Işık

Abstract Objective. To assess the effects of attention-deficit/hyperactivity disorder (ADHD) symptom dimensions on Internet addiction (IA) after controlling for Internet usage features among high school students. Methods. This study consisted of 640 students (331 females and 309 males) ranging from 14 to 19 years of age. The Internet Addiction Scale, the Conners-Wells’ Adolescent Self-Report Scale-Short Form, and a personal information form were completed by the participants. Statistical analyses were conducted for both sexes and the total sample. Results. According to the logistic regression analysis, attention deficit and playing online games were significant predictors of IA in both sexes. Other predictors of IA included behavioral problems for females, total weekly Internet usage time, and lifelong total Internet use for males. Hyperactivity and other Internet usage features did not predict IA. Conclusion. These results suggest that attention deficit and playing online games are important determinants of IA in this age group.


Pediatrics International | 2015

ADHD symptoms, breast‐feeding and obesity in children and adolescents

Serhat Türkoğlu; Ayhan Bilgiç; Ömer Faruk Akça

Attention‐deficit–hyperactivity disorder (ADHD) has been found to be related to overweight/obesity in children and adolescents, but it is a heterogeneous disorder, and the relationships between the dimensions of ADHD and overweight/obesity are not clear. The aim of this study was to explore which dimensions of the disorder are specifically associated with overweight/obesity.


Psychiatry Research-neuroimaging | 2018

Serum levels of cortisol, dehydroepiandrosterone, and oxytocin in children with attention-deficit/hyperactivity disorder combined presentation with and without comorbid conduct disorder

Ümit Işık; Ayhan Bilgiç; Aysun Toker; İbrahim Kılınç

The present study aimed to investigate serum cortisol, dehydroepiandrosterone (DHEA), and oxytocin levels of children with attention-deficit/hyperactivity disorder (ADHD) combined presentation and those diagnosed with ADHD combined presentation and coexisting conduct disorder. A total of 74 drug-naive children with ADHD combined presentation alone, 32 children with ADHD combined presentation + conduct disorder, and 42 healthy controls were included. The severities of ADHD and conduct disorder symptoms were assessed via parent- and teacher-rated questionnaires. The severity of aggression, anxiety, and depression symptoms of the children were assessed by the self-report inventories. Independent of potential confounders, including age, sex, pubertal stage, and severity of depression and anxiety, serum oxytocin levels of the ADHD combined presentation + conduct disorder group were significantly lower than those of both the ADHD combined presentation alone and control groups. There was also a trend for the ADHD combined presentation + conduct disorder group to show lower serum DHEA levels than that of the ADHD combined presentation alone group. However, serum cortisol levels did not show significant alterations among the groups. These findings suggest that oxytocin and DHEA may play a role in the pathophysiology of conduct disorder, at least in the presence of ADHD combined presentation.


Journal of Child and Adolescent Psychopharmacology | 2016

Hiccups Associated with Aripiprazole in an Adolescent with Bipolar Disorder

Ayhan Bilgiç; Savaş Yılmaz; Emre Yilmaz

Aripiprazole is one of the atypical antipsychotic medications with a mechanism of action involving mixture of agonist, partial agonist, and antagonist activity at dopamine and serotonin receptors (Deb et al. 2014). It was first approved for the treatment of schizophrenia; later it was found effective for bipolar disorder, major depressive disorder, and irritability associated with autism spectrum disorders (Nelson et al. 2010; de Bartolomeis and Perugi 2012; Deb et al. 2014). Initially, aripiprazole had been regarded as a relatively safe agent with little extrapyramidal adverse effects, minimal weight gain, and a favorable metabolic profile. However, by contrast, there are slowly increasing published data regarding the adverse effects of the drug. Hiccup is a repeated involuntary, spasmodic, and temporary contraction of the diaphragm accompanied by a sudden closure of the glottis, producing the characteristic inspiratory sound and discomfort. The exact etiology of hiccup remains unclear in most cases. Many causes have been attributed to the etiology of hiccups, including drugs. A few reports were available regarding aripiprazole-induced hiccup in the adult literature (Ray et al. 2009; Yeh 2011; Silverman et al. 2014). Herein, we present an adolescent with newly diagnosed bipolar disorder who displayed acute hiccup during aripiprazole therapy.


Pediatrics International | 2015

The Relationship between ADHD Symptoms, Breastfeeding and Obesity in Children and Adolescents

Serhat Türkoğlu; Ayhan Bilgiç; Ömer Faruk Akça

Attention‐deficit–hyperactivity disorder (ADHD) has been found to be related to overweight/obesity in children and adolescents, but it is a heterogeneous disorder, and the relationships between the dimensions of ADHD and overweight/obesity are not clear. The aim of this study was to explore which dimensions of the disorder are specifically associated with overweight/obesity.


Journal of Attention Disorders | 2018

The Relationship Between Parental Affective Temperament Traits and Disruptive Behavior Disorders Symptoms in Children With ADHD

Ayhan Bilgiç; Savaş Yılmaz; Özlem Özcan; Ali Evren Tufan; Sevgi Özmen; Didem Behice Öztop; Ömer Faruk Akça; Serhat Türkoğlu; Ahmet Yar

Objective: This study investigated the relationship between parental affective temperaments and the oppositional defiant disorder (ODD) and conduct disorder (CD) symptoms of children with ADHD. Method: The sample consisted of 542 treatment-naive children with ADHD and their biological parents. Children were assessed via both parent- and teacher-rated behavioral disorder scales. Parental affective temperament and ADHD symptoms were measured by self-report inventories. The relationships between psychiatric variables were evaluated using structural equation modeling. Results: According to parent-rated behavioral disorder scales, paternal cyclothymic and maternal irritable temperaments were associated with ODD scores, and maternal depressive temperament was associated with CD scores. In terms of teacher-rated behavioral disorder scales, maternal anxious temperament was associated with ODD scores, and paternal cyclothymic and maternal depressive temperaments were associated with CD scores. Conclusion: These results suggest that certain parental affective temperaments are related to an increase in symptoms of disruptive behavioral disorders in children with ADHD.


Psychiatria Danubina | 2017

THE IMPACT OF ANXIETY SENSITIVITY ON SUICIDALITY IN ADOLESCENTS WITH MAJOR DEPRESSIVE DISORDER

Ayhan Bilgiç; Savas Yılma; Sabri Hergüner

BACKGROUND Few studies have examined the link between anxiety sensitivity (AS) and suicidality among adolescents with major depressive disorder; thus, there is a need to explore this relationship in order to fill the research gap. The aim of this cross-sectional study was to examine the association among AS and suicidal behaviour while taking into account the effects of potential third variables such as the presence of anxiety disorders and hopelessness in adolescents with major depressive disorder. SUBJECTS AND METHODS Participants (n=101) completed self-report measures of depressive symptoms, AS, hopelessness and suicidal ideation severity. The presence of anxiety disorders and suicide attempt history were determined with psychiatric interviews. The association between psychiatric variables was evaluated using structural equation modelling. RESULTS Results showed that AS cognitive concerns had a positive effect on suicidal ideation mediated by the severity of depression. AS physical concerns had a negative direct effect on suicidal ideation, but there was also a positive relationship among these variables through hopelessness, thus, the total effect of AS physical concerns was not significant. There were also positive relationships between hopelessness and suicidal ideation, and the presence of anxiety disorders to suicide attempt history. CONCLUSIONS The results of this study suggest that higher AS cognitive concerns may be a risk factor for suicidality through the severity of depression in adolescents who are diagnosed with major depressive disorder.


Child Psychiatry & Human Development | 2017

Association of reactive-proactive aggression and anxiety sensitivity with internalizing and externalizing symptoms in children with attention-deficit/hyperactivity disorder

Ayhan Bilgiç; Ali Evren Tufan; Savaş Yılmaz; Özlem Özcan; Sevgi Özmen; Didem Behice Öztop; Serhat Türkoğlu; Ömer Faruk Akça; Ahmet Yar; Ümit Işık; Rukiye Çolak Sivri; Hatice Polat; Ayşe Irmak; Yunus Emre Dönmez; Pelin Çon Bayhan; Ömer Uçur; Mehmet Akif Cansız; Uğur Savcı

This study evaluates the associations among the symptoms of anxiety, depression, and disruptive behavioral disorders (DBD) in the context of their relationships with reactive–proactive aggression and anxiety sensitivity in children with attention-deficit/hyperactivity disorder (ADHD). The sample consisted of 342 treatment-naive children with ADHD. The severity of ADHD and DBD symptoms were assessed via parent- and teacher-rated inventories. Anxiety sensitivity, reactive–proactive aggression and severity of anxiety and depression symptoms of children were evaluated by self-report inventories. According to structural equation modeling, depression and anxiety scores had a relation with the DBD scores through reactive–proactive aggression. Results also showed a negative relation of the total scores of anxiety sensitivity on DBD scores, while conduct disorder scores had a positive relation with anxiety scores. This study suggests that examining the relations of reactive–proactive aggression and anxiety sensitivity with internalizing and externalizing disorders could be useful for understanding the link among these disorders in ADHD.


Indian Journal of Dermatology, Venereology and Leprology | 2016

Relationship between sleep quality and facial sebum levels in women with acne vulgaris.

Özlem Bilgiç; Ayhan Bilgiç; Hilmi Cevdet Altınyazar

Sir, Sleep has a strong regulatory role in general body function. Studies have shown that poor sleep quality is associated with an increased risk of physical and mental health problems.[1] It is characterised by short sleep duration, insomnia and altered sleep latency. Very little research has been done on the association between sleep quality and skin function.[2] The present study aims to investigate the association between facial sebum secretion levels and sleep quality in women with acne vulgaris. In addition, the severity of depression was assessed to account for potential confounding variables.

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Ali Evren Tufan

Abant Izzet Baysal University

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