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Fakülteler107
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Tıp Fakültesi107
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Temel Tıp Bilimleri Bölümü107
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Tıbbi Biyoloji ve Genetik Anabilim Dalı67
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Tıbbi Mikrobiyoloji Anabilim Dalı20
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Biyofizik Anabilim Dalı10
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Cerrahi Tıp Bilimleri Bölümü9
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Kadın Hastalıkları ve Doğum Anabilim Dalı9
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Biyoistatistik ve Tıbbi Bilişim Anabilim Dalı8
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Histoloji ve Embriyoloji Anabilim Dalı8
Description of the episeptal and interlaminar fascial tunnels for the superficial fibular nerve and its terminal branches.
KESİLMİŞ İNCİ | KURTOĞLU OLGUNUS ZELİHA
Purpose This study aimed to reveal the course of the superficial fibular nerve and its branches, whose entrapment may be responsible for anterior leg pain and is at risk in fasciotomies, according to the crural fascia laminae and the anterior inter muscular septum. Methods On the twenty cadaver legs, the location of the superficial fibular nerve and its branches, according to the crural fascia layers and anterior intermuscular septum, the course type in the tunnel, if any, and the superficialization pattern were defined. Results The number of cases in which the superficial fibular nerve and its branches traveled within a tunnel was found to be 15/20 (75%). The superficial fibular tunnel was defined as an “episeptal” and “interlaminar fascial” tunnel based on the nerve’s relati...
Tardive dyskinesia is not associated with the polymorphisms of 5-HT2A receptor gene, serotonin transporter gene and catechol-o-methyltransferase gene
Erdal, Mehmet Emin
Background. – The pathophysiology of tardive dyskinesia (TD) is not completely understood. Aim. – To assess the relationship of TD with 5-HT2A receptor gene, serotonin transporter gene (5 HTT), and catechol-o-methyltransferase (COMT) gene polymorphisms. Method. – Our study comprised 111 unrelated subjects who strictly met DSM-IV criteria for schizophrenia and 32 TD, and 79 healthy unrelated controls; all the subjects were of Turkish origin. The analyses of 5-HT2A receptor gene, 5 HTT gene, and COMT gene polymorphisms were performed using polymerase chain reaction (PCR) technique. Results. – The polymorphisms of these genes were not significantly different between the schizophrenic patients, TD and control subjects. Conclusion. – Our findings indicated that 5-HT2A receptor gene, 5 HTT gene,...
The Tumor Necrosis Factor-A -308 G/A Polymorphism and the Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand Polymorphisms, in Asthmatic Patients and Healthy Subjects
Erdal, Mehmet Emin | Ay, Özlem İzci
Asthma is a chronic inflammatory disorder of the airways in which many cells and cellular elements play a role. Like other atopic diseases, asthma is a complex disorder caused by interactions between multiple genes of small to modest effect and equally important environmental factors. The aim of this study was to determine the TNF-α -308 G/A polymorphism and the TRAIL polymorphisms, and their influence on asthma in asthmatic patients and healthy subjects. The study population consists of 51 asthmatic patients (47 female and 4 male) and 72 healthy subjects (62 female and 10 male). The mean age of the asthmatic patients and healthy controls were 45.33±14.05, and 41.88±17.41 years, respectively. The asthmatic patients and healthy controls were similar with respect to their ages and sex charac...
Prevalence and demographic features of rotavirus, enteric adenovirus and enteric parasite infections in a tertiary hospital: A six-year retrospective cross-sectional study
Bozok, Taylan | Bozok, Tuğçe Şimşek
Amaç: Bu çalışmada ishal ön tanılı hastaların rotavirüs, enterik adenovirüs ve enterik parazit inceleme sonuçlarının demografik verilerle ilişkilerinin analiz edilmesi amaçlandı. Yöntem: Ocak 2014 – Aralık 2019 tarihleri arasında Niğde Eğitim ve Araştırma Hastanesi laboratuvarında taze dışkı örneğinde immünkromatografik yöntemle çalışılmış rotavirüs, adenovirüs antijeni ve ışık mikroskobu altında 40x büyütmede parazit inceleme sonuçları retrospektif olarak değerlendirildi. Test sonuçları yaşa, cinsiyete, uyruğa, mevsimlere, yıllara ve hastaneye başvuru şekline göre ki-kare yöntemi ile analiz edildi. p değeri <0.05 istatistiksel olarak anlamlı kabul edildi. Bulgular: İncelenen altı yıllık rotavirüs, adenovirüs ve dışkıda parazit inceleme testlerinin pozitiflik oranları; rotavirüs için %7...
Examination of individuals' depression, anxiety, and stress levels during the COVID-19 pandemic in Turkey
Erdoğan, Semra | Can, Ahu Aksoy | Yılmaz, Duygu Vefikuluçay
Purpose: This research was conducted to determine the depression, anxiety, and stress levels of individuals during the COVID-19 epidemic. In addition, the compatibility of the Depression-Anxiety-Stress Scale (DASS-21) scale results with the participants' feeling depressed, anxious, and stressed were examined. Design and methods: The sample of the study consisted of 870 individuals over the age of 18 between May–August 2021. The data of the study were collected online, using the personal information form and DASS-21. Results: In our study, it was observed that 22.3 % of the participants were severely depressed, 19.0 % were highly anxious and 14.3 % were highly stressed. In addition, a relationship was determined between many sociodemographic variables and depression, anxiety, and stress lev...
Utilizing Ethnic-Specific Differences in Minor Allele Frequency to Recategorize Reported Pathogenic Deafness Variants
Erdal, Mehmet Emin
Ethnic-specific differences in minor allele frequency impact variant categorization for genetic screening of nonsyndromic hearing loss (NSHL) and other genetic disorders. We sought to evaluate all previously reported pathogenic NSHL variants in the context of a large number of controls from ethnically distinct populations sequenced with orthogonal massively parallel sequencing methods. We used HGMD, ClinVar, and dbSNP to generate a comprehensive list of reported pathogenic NSHL variants and re-evaluated these variants in the context of 8,595 individuals from 12 populations and 6 ethnically distinct major human evolutionary phylogenetic groups from three sources (Exome Variant Server, 1000 Genomes project, and a control set of individuals created for this study, the OtoDB). Of the 2,197 rep...
Significance of catechol-O-methyltransferase gene polymorphism in myofacial pain syndrome
Erdal, Mehmet Emin
The objective was to investigate possible association of the catechol o-methyl transferase (COMT) gene polymorphisms with myofacial pain syndrome (MFPS). The polymorphism of the COMT gene was compared between 49 patients with MFPS and 113 control subjects. Relationship between COMT polymorphism and psychiatric status of the patients was also assessed using SCL-90-R, BDS, and STAI-I and II tests. A PCR-based restriction fragment length polymorphismassay was used to detect G ! A transition at position 1947 in COMT. There was no relationship between MFPS and COMT polymorphism (p > 0:05). The patients who had MFPS without any temporomandibular joint problem had signi cantly higher expression of LL genotype when compared to those with joint problems (p < 0:05). There was no relationship betwee...
Investigation of efflux pump genes in isoniazid resistant Mycobacterium tuberculosis isolates
Kaya, Hamide | Ersoy, Leyla | Ülger, Mahmut | Bozok, Taylan | Aslan, Gönül
Background: Tuberculosis (TB) is one of the most important infectious diseases worldwide. Resistance to antituberculosis drugs develops because of genetic mutations that render drug-activating enzymes inactive, changes in cell wall permeability, and increased expression of efflux pump genes and also combination therapy with efflux pump inhibitors may be more effective in drug-resistant TB patients. Aims: To investigate the effect of verapamil (VR) on isonicotinic acid hydrazide (INH) resistance and the expression of 21 efflux pump genes in INH monoresistant MTBC clinical isolates. Study design: In vitro study. Methods: In our mycobacteriology laboratory, 10 INH monoresistant and 10 primary anti-TB drug-susceptible MTBC clinical isolates were selected. Drug susceptibilities for INH and V...
Epigenetics and Expression of the Wnt Signaling Pathway in Ulcerative Colitis
Zuhal Altintas | Mehmet Emin Erdal | Engin Altintas
Background/Aims: Secreted frizzled-related proteins (SFRPs) are antagonists that bind Wnt and inhibit signaling through this pathway. Secreted frizzled-related proteins are silenced by promoter methylation and cause hyperactivation of the Wnt pathway. In this study, the aim was to evaluate the relationship between methylation and expression of genes involved in the Wnt signaling pathway and the risk of cancer development in inflammatory bowel disease. Materials and Methods: The patient group consisted of 20 individuals who were diagnosed with left-side ulcerative colitis and under went surveillance colonoscopy; the control group consisted of 15 individuals without symptoms and endoscopic pathology who were screened for colorectal cancer. Tissue samples were obtained from inflamed and ...
Deep Learning-Based Prediction Models for the Detection of Vitamin D Deficiency and 25-Hydroxyvitamin D Levels Using Complete Blood Count Tests
Acı, Çiğdem | Acı, Mehmet
Vitamin D (VitD) is an essential nutrient that is critical for the well-being of both adults and children, and its deficiency is recognized as a precursor to several diseases. In previous studies, researchers have approached the problem of detecting vitamin D deficiency (VDD) as a single ”sufficient/deficient” classification problem using machine learning or statistics-based methods. The main objective of this paper is to predict a patient’s VitD status (i.e., sufficiency, insufficiency, or deficiency), severity of VDD (i.e., mild, moderate, or severe), and 25-hydroxyvitamin D (25(OH)D) level in a separate deep learning (DL)-based models. An original dataset consisting of complete blood count (CBC) tests from 907 patients, including 25(OH)D concentrations, collected from a public health la...
Significance of catechol-O-methyltransferase gene polymorphism in fibromyalgia syndrome.
Erdal, Mehmet Emin | Erdal, Nurten
Fibromyalgia syndrome (FS) is associated with a neuroendocrinal disorder characterized by abnormal function of the hypothalamic-pituitary-adrenal (HPA) axis, including hyperactive adrenocorticotropic hormone (ACTH) release and adrenal hyporesponsiveness. Catechol-O-methyltransferase (COMT) enzyme inactivates catecholamines and catecholamine-containing drugs. Polymorphism in the gene encodes for the COMT enzyme. For this study, the significance of COMT polymorphism was assessed in FS. There were three polymorphisms of the COMT gene: LL, LH, and HH. The analysis of COMT polymorphism was performed using polymerase chain reaction (PCR). Sixty-one patients with FS and 61 healthy volunteers were included in the study. Although no significant difference was found between LL and LH separately, the...
PPAR-g2 Pro12Ala polymorphism is associated with weight gain in women with gestational diabetes mellitus
Tok, Devrim | Erdal, Mehmet Emin
Objective: The polymorphisms of peroxisome proliferator–activator receptor-g2 (PPAR-g2) have been suggested to affect glucose metabolism and weight gain. Both conditions show great variations during pregnancy that makes pregnancy a suitable condition to detect any metabolic abnormalities related to PPAR-g2 polymorphisms. The objective of this study is to investigate the prevalence and metabolic impacts of PPAR-g2 polymorphism in control pregnant women and in patients with gestational diabetes mellitus (GDM). Methods: In this case-control study, anthropometric and metabolic variables of 100 non-diabetic pregnant women and of 62 women who were diagnosed as having GDM according to 100 g oral glucose tolerance test (OGTT) were compared on the basis of PPAR-g2 polymorphism by univariate analysi...
Association of serotonin transporter gene-linked polymorphic region and variable number of tandem repeat polymorphism of the serotonin transporter gene in lichen simplex chronicus patients with psychiatric status
Erdal, Mehmet Emin
Background The serotonin (5-hydroxytryptamine; 5-HT) is a key neurotransmitter in the central nervous system and a responsible mediator for the itch. Dysregulation of serotonergic pathways has been implicated in the pathogenesis of many complex neuropsychiatric diseases. Objectives The purpose of this study was to evaluate the relationship between lichen simplex chronicus and dysfunction and serotonin transporter (5-HTT) gene polymorphism. Methods Thirty-nine patients with lichen simplex chronicus and 61 healthy control subjects were examined. Results The results for the patients and control subjects were not significantly different ( P > 0.05) in long/long (L/L) and long/short (L/S) genotypes of 5-HTT gene-linked polymorphic region (HTTLPR) polymorphism, but short/short S/S genotype was l...
Investigation of the anticancer of photodynamic therapy effects by using the novel Schiff base ligand palladium complexes on human breast cancer cell line
Demirbağ, Burcu | Ballı, Ebru | Orekici Temel, Gülhan | Yılmaz, Mustafa Kemal | Değirmenci, Evren | Kibar, Deniz
Chemotherapy plays a role in many cancer therapies, including breast cancer, but due to its significant side effects, alternate treatment approaches have been investigated. One such alternative is photodynamic therapy (PDT), which employs a combination of oxygen, a photosensitizer (PS), and light of a specific wavelength. Transition metal complexes and SBL have gained interest in PDT. In this study aimed to assess the potential antitumor activity and underlying mechanism of a newly synthesized Schiff base ligand (SBL)-mediated PDT on MCF-7 cells, comparing its efficacy to cisplatin. We synthesized and characterized two novel Pd-conjugated SBL compounds (complex-1 and 2). Following the treatment of MCF-7 cells with these compounds, a light-emitting diode (LED) was utilized to deliver a ligh...
Association of insulin receptor substrate-1 G972R variant with baseline characteristics of the patients with gestational diabetes mellitus
Tok, Devrim | Erdal, Mehmet Emin
Objective: Insulin receptor substrate-1 (IRS-1) expression and tyrosine phosphorylation is decreased during pregnancy. Pregnancy may be a suitable condition to detect any abnormalities related to IRS-1 polymorphisms. Therefore, we aimed to investigate the prevalence and metabolic impacts of IRS-1 G972R polymorphism in patients with gestational diabetes mellitus (GDM). Study design: Anthropometric and metabolic variables of 62 women who were diagnosed as having GDM according to 100 g oral glucose tolerance test were compared on the basis of IRS-1 polymorphism by univariate analysis of covariance. Results: Patients with IRS-1 G972R were more obese at the beginning of pregnancy, had higher serum fasting insulin and glucose levels. Weight gain during pregnancy and insulin and glucose levels af...
Genetic Variants of Synaptic Vesicle and Presynaptic Plasma Membrane Proteins In Alzheimer’s Disease
Erdal, Mehmet Emin | Özge, Aynur
Background: Alzheimer's disease (AD) is the most common cause of dementia in the elderly, and its etiology is still not fully understood. The aim of this study was to analyze the role of the genetic variants of two synaptic vesicle proteins (VAMP2, synapsin III) and two presynaptic plasma membrane proteins (syntaxin 1A, SNAP-25) in AD patients. We analyzed the functional polymorphisms of VAMP2, synapsin III, syntaxin 1A, and SNAP-25 genes. Method: Sixty-eight adult patients with Alzheimer disease and Seventy-eight healthy adults were included in the study. DNA was extracted from whole blood by the salting out procedure. We used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. We determined alleles and the genotypes of polymorphism of VAMP2, synapsin ...