Publications by authors named "Guelseren Karadag"

Background: End-stage renal disease (ESRD) patients frequently experience protein-energy wasting (PEW), which increases their morbidity and mortality rates.

Objective: This study explores the effects of nutritional status and pulmonary function on the short- and long-term mortality of ESRD patients undergoing hemodialysis.

Materials And Methods: 67 consecutive ESRD patients on maintenance hemodialysis were included in the study.

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Liposomes are gaining interest in food and pharmaceutical applications due to their biocompatibility and non-toxicity. However, they suffer from low colloidal stability, leakage of encapsulated substances, and poor resistance to intestinal digestive conditions. To address these issues, propolis extract (PE) was encapsulated within a hybrid system combining liposomes and hydrogels.

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Background: The clinical manifestations and course of rheumatoid arthritis-associated interstitial lung disease (RA-ILD) exhibits considerable heterogeneity. In this study, we aimed to explore radiographic progression over a defined period, employing the Warrick score as a semi-quantitative measure in early RA-ILD, and to assess the associated risk factors for progression.

Methods: RA-ILD patients underwent consecutive Warrick scoring based on initial high-resolution computed tomography (HRCT) at diagnosis and the first follow-up.

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Humans are curious. Especially children are known for their drive to explore and learn, which is crucial for developing in and navigating through our complex world. Naturally, some children may be more curious than others, leading to differences in how they structure their own learning experiences, subsequently impacting their developmental trajectories.

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Antibody generation requires the use of one or more time-consuming methods, namely animal immunization, and in vitro display technologies. However, the recent availability of large amounts of antibody sequence and structural data in the public domain along with the advent of generative deep learning algorithms raises the possibility of computationally generating novel antibody sequences with desirable developability attributes. Here, we describe a deep learning model for computationally generating libraries of highly human antibody variable regions whose intrinsic physicochemical properties resemble those of the variable regions of the marketed antibody-based biotherapeutics (medicine-likeness).

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Context: Osteonecrosis (ON) is bone death caused by inadequate blood supply and its optimal management remains uncertain.

Objective: We describe the outcomes of BP (pamidronate) treatment in our patients.

Design: Data regarding clinical, laboratory, magnetic resonance imaging (MRI) studies, and bone mineral density measurements (BMD) were recorded before and one year after treatment (reevaluation).

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Objective: This in vitro study aims to evaluate the effect of placing polyethylene fibers used in large Class II MOD (mesio-occlusion-distal) cavities into different flowable resin composites and in different positions on the fracture resistance of the restoration.

Materials And Methods: Ninety healthy human molars were used in the study. No treatment was performed on 10 of these teeth and they were used as the control group.

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Military veterans who became disabled due to conflict-related trauma face various challenges in finding and maintaining employment in civilian life. This study aims to understand the transition processes of disabled veterans in Turkey into civilian employment, as well as their experiences in maintaining and sustaining employment during this process. A qualitative research design was used in the study.

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Objective: Current guidelines recommend the use of glycoprotein IIb/IIIa (GpIIb/IIIa) inhibitors in patients with ST-segment elevation myocardial infarction (STEMI) only as a bail-out therapy. However, drug penetration to the jeopardised area may not be achieved due to impeded blood flow and increased microvascular resistance. Aim of our study is to investigate the impact of distal intracoronary GpIIb/IIIa inhibitor agent infusion in STEMI patients.

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Introduction: Advances in neonatal and pediatric intensive care have improved patient survival rates, emphasizing the need for respiratory support in cases of chronic respiratory failure, resulting in the establishment of the Turkish National Pediatric Patients Receiving Home Mechanical Ventilation (HMV) Support Registration System in 2023. This study aims to present the initial findings of the registry.

Methods: In this cross-sectional study, epidemiological and demographic data was obtained from the registry and compared between invasive ventilation (IV) and non-invasive ventilation (NIV) groups.

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Objective: Nebulizer contamination has potential harmful effects on the respiratory system. The aim was to investigate the contamination profile of the nebulizers in cystic fibrosis patients and evaluate the relationship between hygiene practices and microbial contamination. Materials and Methods: Microbiological swab samples were taken from 3 different locations of the nebulizers of 102 patients.

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Objectives: Validate the English version of the (SCS-SF) as a reliable measure in chronic pain. Explore self-compassion's relationship with pain-related outcomes.

Methods: A total of 240 chronic pain patients (at 6-months) and 256 community participants (at 12-months) completed two prospective survey studies.

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POLE status determination is necessary for the molecular classification of endometrial carcinomas (EC). However, this determination is only achievable by molecular techniques, which are not available in many practice settings. A previously published study reported elevated AMF/GPI and AMFR/gp78 levels in POLE-mutant EC.

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Background: Food protein-induced allergic proctocolitis is a nonimmunoglobulin E-mediated, self-limited food allergy of the rectum and the colon. Cow's milk protein is the most common allergen responsible for the disease.

Objective: This study aimed to investigate the roles of different types of formulas in building early tolerance to food protein-induced allergic proctocolitis in infants.

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Background: Egg allergy is among the most common food allergies in children, significantly affecting the dietary habits and quality of life of both the affected children and their families. This study aims to assess the clinical role of the Basophil Activation Test (BAT) in children with egg allergy and to evaluate its diagnostic accuracy in comparison to other tests.

Methods: The study included 46 children with egg allergy.

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Background: Familial Mediterranean Fever is a common genetic autoinflammatory disease prevalent in the Mediterranean region. The clinical course of the disease is characterized by fever and serositis attacks. While defects in the innate immune system are known to play a role in the pathogenesis of the disease, the impact of the adaptive immune system remains unclear.

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Background/aim: Melanoma arises from the uncontrolled multiplication of melanocytes, and poses an escalating global health concern. Despite the importance of early detection and surgical removal for effective treatment, metastatic melanoma poses treatment challenges, with limited options. Among optional therapies, including chemotherapy and immunotherapy, all-trans retinoic acid (ATRA), a natural metabolite of vitamin A, has shown promise in treating melanoma by inducing differentiation, apoptosis, growth arrest, and immune modulation in melanoma cells.

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Objective: Cystic echinococcosis (CE) caused by the larval stage of the parasite is a global health problem. This study aimed to assess cases of CE admitted to our General Surgery Department retrospectively, as there is no known similar publication concerning surgical treatment of abdominal cystic echinococcosis in Çanakkale province.

Materials And Methods: We analyzed laboratory and radiological findings alongside clinical and demographic features, treatments, and outcomes of cases undergoing surgical treatment for abdominal cystic echinococcosis in our department between 2012 and 2022.

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In this study, the expression and localization of gonadotropin-releasing hormone (GnRH1) and kisspeptin (KISS1) and their specific receptors in canine ovarian and uterine tissues were investigated after the application of deslorelin acetate (Suprelorin, 4.7 mg, Virbac, France) in the late prepubertal period. We hypothesized that prolonged treatment of prepubertal dogs with deslorelin would alter the expression of GnRH and kisspeptin genes in the uterus and ovaries.

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This study aimed to develop silver nanoparticles embedded in poly(ricinoleic acid)-poly(methyl methacrylate)-poly(ethylene glycol) (AgNPsPRici-PMMA-PEG) nanoparticles (NPs) containing caffeic acid (Caff) and tetracycline hydrochloride (TCH) for treating infections and cancer in bone defects. The block copolymers were synthesised via free radical polymerisation. NPs were prepared using the solvent evaporation method and characterised by FTIR, HNMR, SEM, DSC, TGA, and DLS.

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Introduction: USP9X has been associated with neurodevelopmental disorders due to its role in synaptic development and neural function. This study aimed to compare USP9X and TGF-β levels in children with autism and healthy controls, and explore their relationship with autism severity.

Methods: Serum USP9X and TGF-β levels were measured in 41 healthy control children (aged 3-12 years) and 41 children with autism.

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Background: Many studies have been published on the relationship between different parameters with marginal bone loss around implants. The results of these studies vary, but some variables such as smoking or certain systemic conditions are more likely to predispose or exacerbate the resorption around implants. The aim of this study was to determine the rates of implants with radiographically detected marginal bone loss and to determine whether there is a relationship between the severity of destruction and certain risk factors like location of implant, restoration type, systemic condition, age, sex or smoking habits.

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This study was conducted to determine the effects of an algorithm training booklet, which was based on Orem's self-care deficit nursing theory, specific to lower extremity peripheral artery disease, on pain, activities of daily living, self-care agency, walking distance, quality of life, and other symptoms. This mixed-method study included a qualitative stage using face-to-face in-depth individual interviews and a pretest-posttest semiexperimental design quantitative stage. In-depth interviews were conducted to highlight self-care needs and symptoms and to create the booklet.

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Background: Parkinson's disease (PD) is primarily characterized by motor symptoms, but non-motor symptoms, including skin manifestations, are increasingly recognized. These remain underexplored despite their potential impact on quality of life.

Objectives: This study aimed to evaluate the prevalence and clinical features of skin findings in PD patients, with a focus on identifying potential pathogenetic links between dermatological conditions and PD.

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