Publications by authors named "Coskun A"

Objective: Epilepsy is one of the most common neurological diseases in the pediatric population. Orexins are excitatory peptides and associated with energy homeostasis, eating and drinking behaviors, sleep regulation, sleep-wake periods, analgesia, and cognitive activities such as attention, learning, and memory. The aim of this study was to reveal the relationship between plasma orexin levels and seizures in pediatric epilepsy patients with seizures, epilepsy patients in remission, and healthy control group with similar demographic characteristics.

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The recovery and separation of organic solvents is highly important for the chemical industry and environmental protection. In this context, porous organic polymers (POPs) have significant potential owing to the possibility of integrating shape-persistent macrocyclic units with high guest selectivity.  Here, we report the synthesis of a macrocyclic porous organic polymer (np-POP) and the corresponding model compound by reacting cyclotetrabenzil naphthalene octaketone macrocycle with 1,2,4,5-tetraaminobenzene and 1,2-diaminobenzene, respectively, under solvothermal conditions.

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Background/objectives: In the REGOMA trial, regorafenib demonstrated an overall survival advantage over lomustine, and it has become a recommended treatment for recurrent glioblastoma in guidelines. This study aimed to evaluate the effectiveness and safety of regorafenib as a third-line treatment for patients with recurrent glioblastoma who progressed while taking bevacizumab-based therapy.

Methods: This retrospective, multicenter study in Turkey included 65 patients treated between 2021 and 2023 across 19 oncology centers.

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Background: Immune checkpoint inhibitors (ICI) are generally associated with rare cardiac side effects, yet instances like myocarditis can be fatal. Therefore, detecting and managing left ventricular dysfunction early in ICI therapy is vital.

Objectives: This study aims to evaluate whether left ventricular global longitudinal strain (LV GLS) is a predictor for early detection of cardiac dysfunction in patients receving ICI.

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: In patients with acute coronary syndrome, electrocardiographic parameters, including ST elevation in lead aVR (aVR-STE), ST depression (aVR-STD), and QTc prolongation, are crucial. This study aims to show the predictive value of a longer QTc in emergency department patients with acute coronary syndrome and ≥1 mm ST elevation or depression in the aVR lead in electrocardiography. : A retrospective analysis was conducted on 1273 patients admitted to the emergency department with a preliminary diagnosis of acute coronary syndrome between 2020 and 2023.

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Osteoarthritis (OA) is a progressive joint disease that is a frequent reason for pain and physical dysfunction in adults, with enormous social and economic burden. Although ongoing scientific efforts in recent years have made considerable progress towards understanding of the disease's molecular mechanism, the pathogenesis of OA is still not fully known, and its clinical challenge remains. Thus, elucidating molecular events underlying the initiation and progression of OA is crucial for developing novel diagnostic and therapeutic approaches that could facilitate effective clinical management of the illness.

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Objective: This study aims to examine neonatal intensive care unit (NICU) nurses' perceptions of artificial intelligence (AI) technologies, particularly language models, and their impact on nursing practices.

Background: AI is rapidly spreading in healthcare, transforming nursing practice. Understanding the role of AI in NICUs in the discharge process is crucial for understanding nurses' perceptions of these technologies.

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Background: Preeclampsia is a serious pregnancy complication requiring early detection to improve outcomes. Profilin-1 (PFN1), linked to vascular dysfunction, may serve as a biomarker for diagnosing preeclampsia and predicting adverse neonatal outcomes. The aim of this study was to determine the serum Profilin-1 levels in patients diagnosed with preeclampsia and to investigate its association with disease severity and adverse neonatal outcomes.

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Background: This study aimed to determine whether surgical multiple-choice questions generated by ChatGPT are comparable to those written by human experts (surgeons).

Methods: The study was conducted at a medical school and involved 112 fourth-year medical students. Based on five learning objectives in general surgery (colorectal, gastric, trauma, breast, thyroid), ChatGPT and surgeons generated five multiple-choice questions.

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Multiple myeloma (MM), a cancer of bone marrow plasma cells, is the second-most common hematological malignancy. However, despite immunotherapies like chimeric antigen receptor (CAR)-T cells, relapse is nearly universal. The bone marrow (BM) microenvironment influences how MM cells survive, proliferate, and resist treatment.

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Article Synopsis
  • The study aimed to assess how structured Family-Centered Care training affects pediatric nurses' attitudes toward this care approach.
  • 140 pediatric nurses participated in a pretest-posttest study, with one group receiving four weeks of training while the control group did not.
  • Results showed that the trained group had significantly improved attitudes after training, highlighting the potential benefits of regular Family-Centered Care training in enhancing care quality and nurse development.
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Objectives: Diurnal variation of plasma glucose levels may contribute to diagnostic uncertainty. The permissible time interval, (), was proposed as a time-dependent characteristic to specify the time within which glucose levels from two consecutive samples are not biased by the time of blood collection. A major obstacle is the lack of population-specific data that reflect the diurnal course of a measurand.

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  • * The study aimed to explore the connection between high-risk ESS metrics and inflammatory cells and cytokines involved in coronary plaque erosion during acute coronary syndromes.
  • * Findings showed that in eroded plaques, low ESS and high gradients were linked to an increase in local proinflammatory T cells and cytokines, indicating a potential mechanism for plaque instability.
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RNA translation to protein is paramount to creating life, yet RNA and protein correlations vary widely across tissues, cells, and species. To investigate these perplexing results, we utilize a time-series fixation method that combines static stimulation and a programmable formaldehyde perfusion to map pseudo-Signaling with Omics signatures (pSigOmics) of single-cell data from hundreds of thousands of cells. Using the widely studied nuclear factor kappa B (NFκB) mammalian signaling pathway in mouse fibroblasts, we discovered a novel asynchronous pseudotime regulation (APR) between RNA and protein levels in the quintessential NFκB p65 protein using single molecule spatial imaging.

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  • Aging leads to an increase in diseases due to the development of senescent cells that stop dividing and contribute to altered immune responses.
  • The senescence-associated secretory phenotype (SASP) aims to recruit immune cells to clear damaged cells, but it can inadvertently cause surrounding cells to also become senescent, leading to chronic inflammation known as "inflammaging."
  • An interdisciplinary approach combining biomaterials, microfluidics, and spatial omics is proposed to better understand the aging process and its effects on diseases, highlighting the importance of cellular interactions in tissue environments.
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  • The study focuses on identifying critical patients in emergency departments to promptly reduce high mortality rates by evaluating specific clinical parameters.
  • It analyzes key indicators like the Glasgow Coma Scale (GCS), quick Sepsis-related Organ Failure Assessment (qSOFA), blood gas base excess (BE), and lactate levels in predicting mortality in critically ill patients.
  • Results showed that among 868 patients, GCS, qSOFA, and lactate levels effectively predicted 30-day mortality, with qSOFA proving to be the most accurate model at a threshold of ≥1.
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  • * A systematic search identified 37 studies, but only 16 met the inclusion criteria for the meta-analysis, revealing limited data for specific markers like albumin and the albumin-to-creatinine ratio (ACR).
  • * The findings highlighted inconsistencies in sample collections and reporting units across BV studies, emphasizing the necessity for more compliant research to better assess the risk of chronic kidney disease.
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  • Current bulk molecular assays miss important details about how cancer cells signal, making it hard to understand drug resistance, so a new technique called GSR-PPI was developed to analyze these interactions at a single-cell level with advanced imaging and deep learning.
  • The study utilized an experimental method that involved tagging proteins and imaging them in EGFR mutant cancer cells after drug treatment, generating high-resolution images and applying deep learning models to interpret the data.
  • GSR-PPI showed superior performance over traditional methods by accurately classifying drug responses and detecting specific protein interactions, ultimately providing better insights into cancer signaling and potential therapies.
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  • - Antibodies are generated by naive B cells turning into plasma cells in germinal centers (GCs) of lymphoid tissues, and patients with B cell lymphoma undergoing immunotherapy have reduced antibody production, leading to higher infection rates and weaker vaccine responses.
  • - Current research models struggle to effectively mimic long-term GC functions and assess B cell responses, prompting the development of synthetic hydrogels that replicate the lymphoid tissue environment to support human GCs from various blood sources.
  • - The new immune organoid systems maintain critical B cell functions longer and offer unique immune programming features; however, they show less effectiveness with lymphoma-derived B cells, indicating a rapid method for studying immune responses and B cell-related disorders.
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  • - Electrocatalysts are crucial in preventing the shuttling effect in lithium-sulfur (Li-S) batteries, but understanding the sulfur redox reactions at the electrocatalyst/LiPS interface is difficult when active sites are obstructed by discharge products.
  • - The study reveals that the LiS (100) plane has intrinsic autocatalytic activity towards lithium polysulfides (LiPS) when used with single-atom nickel (SANi) electrocatalysts, leading to dissociation of LiPS into LiS and short-chain LiPS.
  • - This autocatalytic process generates new LiS (100) surfaces and keeps LiPS concentrations low, allowing Li-S batteries to achieve improved electrochemical performance
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Mass spectrometry imaging (MSI) is a powerful technique for spatially resolved analysis of metabolites and other biomolecules within biological titissues. However, the inherent low spatial resolution of MSI often limits its ability to provide detailed cellular-level information. To address this limitation, we propose a guided super-resolution (GSR) approach that leverages high-resolution Imaging Mass Cytometry (IMC) images to enhance the spatial resolution of low-resolution MSI data.

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Protein-protein interactions (PPIs) regulate signalling pathways and cell phenotypes, and the visualization of spatially resolved dynamics of PPIs would thus shed light on the activation and crosstalk of signalling networks. Here we report a method that leverages a sequential proximity ligation assay for the multiplexed profiling of PPIs with up to 47 proteins involved in multisignalling crosstalk pathways. We applied the method, followed by conventional immunofluorescence, to cell cultures and tissues of non-small-cell lung cancers with a mutated epidermal growth-factor receptor to determine the co-localization of PPIs in subcellular volumes and to reconstruct changes in the subcellular distributions of PPIs in response to perturbations by the tyrosine kinase inhibitor osimertinib.

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Background: Plaques associated with abnormally low physiological flow reserve indices are appropriate for percutaneous coronary intervention (PCI). However, recent trials demonstrate that PCI of ischemia-producing lesions does not reduce major adverse cardiac events (MACE). Low endothelial shear stress (ESS) or high ESS gradient (ESSG) are associated with MACE wherever they occur along the plaque.

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Objectives: This study aimed to investigate the relationship between controlling nutritional status index (CONUT) and prognostic nutrition index (PNI) scores that are used to evaluate nutritional status and GDM. Also, lipid abnormalities and albumin levels in pregnant women with normal glucose tolerance and GDM were researched.

Material And Methods: This study was conducted as a retrospective study at Ankara Etlik City Hospital, Turkey.

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The diagnosis of diseases is a complex process involving the integration of multiple parameters obtained from various sources, including laboratory findings. The interpretation of laboratory data is inherently comparative, necessitating reliable references for accurate assessment. Different types of references, such as reference intervals, decision limits, action limits, and reference change values, are essential tools in the interpretation of laboratory data.

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