Izmir Kâtip Çelebi University

Association between parity and radiographic periodontal bone loss in women with periodontitis: a cross-sectional study

Abstract Background Pregnancy-related hormonal and inflammatory changes may affect periodontal tissues; however, the association between parity and accumulated periodontal bone loss remains unclear. Objective This study aimed to evaluate the association between parity and radiogr...

Mortality and kidney outcomes in ANCA-associated vasculitis: determinants from a real-world cohort

Abstract Introduction: ANCA-associated vasculitis (AAV) is a heterogeneous disease associated with substantial morbidity and mortality; however, data integrating both mortality and kidney outcomes within real-world cohorts remain limited. Objective: To evaluate mortality and kidn...

The effects of water harvesting on the soil of a semi-arid afforestation site in Western Türkiye

Water harvesting techniques effectively improve vegetation establishment in semi-arid environments. This study assessed the effects of site preparation and planting treatments—negarim microcatchments, crescent bunds, burror terraces, pit-planting, and an untreated control—on soil...

Hierarchical diffusion-guided consistency learning framework for knee anterior cruciate ligament classification

Anterior cruciate ligament (ACL) classification in knee magnetic resonance imaging (MRI) is challenging due to diagnostic evidence being dispersed across multiple slices and anatomical supervision often being sparse. We propose a three-stage hierarchical diffusion-guided consiste...

Evaluation of salivary Adseverin, DEFA-1 and sRANKL levels in periodontal health and disease: a cross-sectional study

This investigation aimed to evaluate salivary levels of adseverin (Ads), DEFA-1, and sRANKL in periodontal health, gingivitis, and periodontitis, and to explore their discriminatory potential across periodontal conditions. A total of 60 systemically healthy, nonsmoking individual...

Challenges in glaucoma diagnosis in small optic discs

This study aimed to assess how optic disc (OD) size influences structural and functional tests in patients with glaucoma with small and normal-sized discs and to compare the sensitivities of these tests. The study comprised 182 eyes, including 109 eyes of 73 patients diagnosed wi...

Indication Phenotypes and Short-Term Clinical Outcomes in Patients Undergoing Left Atrial Appendage Closure: A Single-Center Real-World Experience from Türkiye

OBJECTIVE: Left atrial appendage occlusion (LAAO) is widely used for stroke prevention in patients with atrial fibrillation who are unsuitable for long‑term anticoagulation. However, whether clinical outcomes differ according to indication phenotype (bleeding‑dominant versus isch...

Technique-stratified reintervention outcomes after surgical reconstruction for nutcracker syndrome: a single-center retrospective study

Nutcracker syndrome (NCS) is an uncommon venous compression disorder resulting from extrinsic compression of the left renal vein (LRV), either between the superior mesenteric artery (SMA) and the aorta (anterior NCS) or between the aorta and the vertebral body (posterior NCS). Ow...

Visualizing Number Theory: Animated Proofs for Centered Polygonal Numbers

Polygonal and centered polygonal numbers, rooted in ancient geometric traditions, bridge number theory and geometry through their elegant patterns. This article synthesizes their history and presents key identities, with a central focus on introducing animated proofs as a powerfu...

Modeling hierarchical response accuracy of large language models using a Bayesian generalized linear mixed model

Large Language Models (LLMs) demonstrate strong performance in Natural Language Processing. In neuroanatomy, their response accuracy across hierarchical data structures (responses nested within questions) has not yet been investigated. Evaluating how these models perform under va...

Investigation of the health status of emergency nurses working in shifts and the factors associated with it

Background Emergency nurses commonly work shifts, and their health status may vary under these working conditions. The factors associated with this variation are not well understood. Objective The study aimed to investigate the health of emergency nurses working shifts and the fa...

Age-Related Differences in Early Laboratory Trajectories During Intravenous Colistin Therapy in Critically Ill Neonates and Children

Background: Colistin has reemerged as a last-line treatment for multidrug-resistant (MDR) gram-negative infections in neonatal and pediatric intensive care units, but age-specific data on early laboratory changes during therapy remain limited. This study evaluated early renal, he...

Relationships between Continuous Glucose Monitoring-Derived Glycemic Parameters and Early Retinal Vascular Changes in Children with Type 1 Diabetes Mellitus

Objective: This study investigated relationships between continuous glucose monitoring (CGM)-derived metrics and early retinal vascular changes in children having type-1 diabetes mellitus (T1DM) with no clinically-visible diabetic retinopathy (T1DM-noR). Methods: Forty-two T1DM-n...

Overuse Injuries of the Hip and Pelvis: Apophysitis, Stress Fractures, and Tendinopathies

Abstract Hip and pelvic overuse injuries are a frequent source of pain and lost playing time in athletes and may be challenging to diagnose because of overlapping symptoms and complex regional anatomy. Injury patterns vary according to skeletal maturity: in adolescents, open apop...

Indirect Cost Analysis and Evaluation of Factors Affecting Indirect Costs in Patients Hospitalized with Acute Coronary Syndrome in Inpatient Wards of a Training and Research Hospital

Background/Objectives: This study aims to determine the indirect costs associated with the disease process in patients hospitalized for acute coronary syndrome and to analyze the sociodemographic and clinical factors influencing these costs. Methods: This prospective, single-cent...

Serum trefoil factor 3 levels in women with polycystic ovary syndrome: a cross-sectional study

Polycystic ovary syndrome (PCOS) is associated with chronic anovulation and prolonged unopposed estrogen exposure, which may contribute to endometrial dysfunction. Trefoil factor 3 (TFF3) is an estrogen-responsive peptide involved in epithelial repair and mucosal integrity. Howev...

WALANT technique versus general anesthesia in frozen shoulder manipulation: a prospective randomized controlled trial

Manipulation under anesthesia can rapidly improve pain and motion in refractory frozen shoulder but usually requires operating-room and anesthesiology resources. This trial compared an ultrasound-guided wide-awake local anesthesia no tourniquet (WALANT)-based outpatient protocol...

Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content

This study investigated seasonal variations in the proximate composition, amino acid profile, and vitamin content of the carpet shell clam, Ruditapes decussatus, collected from İzmir Bay, Türkiye. Protein (11.55–12.28%), lipid (1.43–1.88%), and ash (2.34–2.45%) contents did not d...

Heterologous transfection of an endornavirus alters the phenotype of Trichophyton rubrum in vitro and in vivo

Mycoviruses are widely distributed across fungal taxa, yet their impact on the phenotype and pathogenicity of dermatophytes remains poorly understood. In this study, we investigated the presence of mycoviruses in clinical isolates of Trichophyton sp. and characterized the phenoty...

Effect of Angulated Screw Channel (ASC) design on the fracture resistance of implant-supported monolithic zirconia and lithium disilicate crowns: an in vitro study

Ti-base abutments with angulated screw channel (ASC) designs have been developed to address the esthetic challenges associated with labial screw access in anterior implant-supported single crowns, as well as the ergonomic limitations caused by restricted mouth opening in posterio...