373,422 results match your criteria: "Turkey; Koc University Research Centre for Translational Medicine[Affiliation]"

Background: Trigeminal neuralgia is a disease characterized by severe facial pain that significantly reduces patients quality of life. Trigeminal neuralgia is subcategorized as idiopathic, classic or secondary. Magnetic resonance imaging is the basis for classification, but neurophysiological tests are also used.

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Cancer and Secretomes: HLA-G and Cancer Puzzle.

Adv Exp Med Biol

January 2025

Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.

Among the mechanisms, cancer cells develop to elude immune system, immune regulation and the use of molecules that play important roles in immune escape stand out. One of these molecules, the human leukocyte antigen G (HLA-G), plays an important role in the maintenance of immune tolerance and contributes to the progression of cancer by exerting an immunosuppressive effect. By creating an immunosuppressive field in the microscopic environment of the tumor, the aberrant expression of HLA-G facilitates the evading of cancer cells from the immune system and contributes to the progression of the disease.

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Peptide Nanofibers and Skin Regeneration.

Adv Exp Med Biol

January 2025

Requalite GmbH, Gräfelfing, Germany.

Peptide nanofibers have been attractive targets for regenerative medicine applications due to their tailorability to be easily functionalized for specific bioactivity, biocompatibility, ease of synthesis, adjustability of their physicochemical characteristics, and lack of biological contamination. Research groups have investigated their use for the regeneration of various tissues, such as bone, cartilage, brain, peripheral nerves, cardiac tissue, vascular tissues, endocrine cells, muscles, etc., for the treatment of degenerative diseases or tissue loss due to accidents or aging.

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Skin regeneration, repair, and the promotion of hair growth are intricate and dynamic processes essential for preserving the overall health, functionality, and appearance of both skin and hair. These processes involve a coordinated interplay of cellular activities and molecular signaling pathways that ensure the maintenance and restoration of skin integrity and hair vitality. Recent advancements in regenerative medicine have underscored the significant role of mesenchymal stem cell (MSC)-derived exosomes as key mediators in these processes.

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Evaluating CK20 and MCPyV Antibody Clones in Diagnosing Merkel Cell Carcinoma.

Endocr Pathol

January 2025

Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.

Merkel cell carcinoma (MCC) is diagnosed through histopathological and immunohistochemical examination of biopsies from skin or other organs. Its distinguishing features include perinuclear dot-like staining with Cytokeratin 20 (CK20) and detection of Merkel cell polyomavirus (MCPyV) using various methods. However, CK20 and MCPyV negative MCC cases have been reported at varying rates.

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Objective: This study aims to quantitatively compare the effects of standard needle irrigation (SNI), passive ultrasonic irrigation (PUI), EDDY, photon-initiated photoacoustic streaming (PIPS), and shock wave-enhanced emission photoacoustic streaming (SWEEPS) on the apical extrusion of irrigation solutions in teeth with severe canal curvature.

Materials And Methods: Seventy-five teeth with a single root and canal, and curvature angles ranging from 20° to 40°, were selected for this study. Root canal curvatures were measured from buccolingual and mesiodistal radiographs using ImageJ software (version 1.

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Clinical presentation and outcome of patients with endogenous endophthalmitis.

Int Ophthalmol

January 2025

Department of Ophthalmology, Basaksehir Cam and Sakura City Hospital, Başakşehir Olympic Boulevard Road, 34480, Başakşehir, Istanbul, Turkey.

Purpose: The study aims to evaluate the clinical characteristics, risk factors, microbiological findings, and visual outcomes, as well as patient and eye survival, of patients diagnosed with endogenous endophthalmitis (EE).

Methods: A retrospective study was conducted on 29 eyes from 21 patients diagnosed with EE.

Results: The mean age of presentation was 56.

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Background: In this study, we aimed to evaluate the role of the glucose-to-potassium ratio in predicting in-hospital mortality and prognosis of patients diagnosed with sepsis and septic shock in an emergency department and admitted to an emergency critical intensive care unit (ICU).

Methods: This study was a retrospective and observational evaluation of nontraumatic sepsis and septic shock patients > 18 years of age who were admitted to the emergency department of a tertiary training and research hospital and had available glucose and potassium values at the time of admission. The patients were evaluated over a 24-month period.

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Objective: Transforaminal epidural steroid injection (TFESI) is highly effective in alleviating radicular back pain. While predictive factors for TFESI treatment outcomes have been previously studied, there is a lack of data on the relationship between facet joint degeneration and TFESI efficacy. This study is aimed at studying the impact of facet joint degeneration on TFESI treatment outcomes for unilateral radicular pain.

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Continuing bonds or ongoing attachments? Exploring the distinction.

Death Stud

January 2025

Independent Scholar, Bowie, Maryland, USA.

This article examines how attachment and bonds, while addressing the same phenomenon, rest on fundamentally different assumptions. We highlight two key distinctions between attachment theory and the continuing bonds model of grief, which are often conflated in their approaches to ongoing relationships with the deceased. Attachment theory frames continuing bonds as compensatory adaptations necessitated by the impossibility of reunion, emphasizing individual adaptation within an intrapsychic framework that often overlooks cultural and social contexts.

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Microfluidics Based Particle and Droplet Generation for Gene and Drug Delivery Approaches.

J Biomed Mater Res B Appl Biomater

February 2025

Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, Izmir, Turkey.

Microfluidics-based droplets have emerged as a powerful technology for biomedical research, offering precise control over droplet size and structure, optimal mixing of solutions, and prevention of cross-contamination. It is a major branch of microfluidic technology with applications in diagnostic testing, imaging, separation, and gene amplification. This review discusses the different aspects of microfluidic devices, droplet generation techniques, droplet types, and the production of micro/nano particles, along with their advantages and limitations.

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Backround: Prednisolone-Derived Corticosteroid (PDC), has anti-inflammatory activity in ocular administration. However, drug administration to the eye is extremely difficult due to the complex structure of the eye. Because of the ability of the eye to retain the drug and its physiology, the bioavailability of drugs applied to the eye is very low.

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The fluke Clinostomum complanatum, a parasite of piscivorous birds, but also reptiles and rarely mammals, has established several foci in the western Palaearctic regions. Previous studies pointed out the complicated taxonomy of the genus, but broader population genetic analysis of C. complanatum has not yet been carried out.

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A Comprehensive Systematic Review and Meta-Analysis on the Prevalence of Aflatoxin M1 in Dairy Products in Selected Middle East Countries.

Vet Med Sci

January 2025

Student Research Committee, Department of Community Nutrition, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Human consumption of dairy products contaminated with aflatoxin (AF) M1 can lead to severe health issues. This AF's significance and impact on health necessitate a thorough investigation of its prevalence in dairy products.

Objectives: This study aims to determine the prevalence of AFM1 in dairy products through a systematic review and meta-analysis, focusing on data from Middle Eastern countries.

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Objective: Hysteroscopic myomectomy is widely regarded as safe and feasible, although achieving single-session results for larger myomas often requires alternative methods. This study introduces a novel approach: ultrasound-guided myoma extirpation using ring forceps combined with hysteroscopy.

Methods: This retrospective, single-center study includes patients who underwent ultrasound-guided myoma extirpation between 2016 and 2024.

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AFFIPred: AlphaFold2 structure-based Functional Impact Prediction of missense variations.

Protein Sci

February 2025

Department of Biostatistics and Bioinformatics, Institute of Health Sciences, Acibadem University, Atasehir, Istanbul, Turkey.

Protein structure holds immense potential for pathogenicity prediction, albeit structure-based predictors are limited compared to the sequence-based counterparts due to the "structure knowledge gap" between large number of available protein sequences and relatively limited number of structures. Leveraging the highly accurate protein structures predicted by AlphaFold2 (AF2), we introduce AFFIPred, an ensemble machine learning classifier that combines sequence and AF2-based structural characteristics to predict missense variant pathogenicity. Based on the assessments on unseen datasets, AFFIPred reached a comparable level of performance with the state-of-the-art predictors such as AlphaMissense.

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Aim: The current study was conducted to measure the prevalence of stress, anxiety, depression, and sleep quality and identify predisposing factors of psychological distress among young adults during the pandemic.

Methods: A cross-sectional design was adopted. The target population consisted of students studying at an associate degree health services school at a university in Turkiye.

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Objective: NCTF135HA, a versatile polyrevitalizing solution, is a potent agent for enhancing skin quality, radiance, moisture, vitality, and diminishing fine wrinkles caused by aging factors. Data demonstrate a divergence in its application from skin quality enhancement to treatment of vitiligo lesions. To know more precisely about the protocol of use among providers, alone or in combination with other procedures, we performed an international survey.

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In this study, a series of 16 arylidenehydrazide derivatives (7a-7p), hybridized with the natural product carvacrol, were successfully synthesized starting from anthranilic acid methyl ester. The cytotoxic effects of these compounds were examined against two different cell lines, A549 and BEAS-2B. Additionally, in silico studies were conducted to investigate the ligand-protein binding modes and their stabilities.

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This study aimed to identify risk factors for noninvasive ventilation (NIV) failure in <30 weeks' gestation preterm neonates and compare morbidity in patients with and without NIV failure. This study included preterm neonates <30 weeks' gestation who received NIV support for respiratory distress syndrome (RDS). Demographic and clinical characteristics were compared between infants with and without NIV failure within the first 72 hours after birth.

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Tooth movement is a complex process involving the vascularization of the tissues, remodeling of the bone cells, and periodontal ligament fibroblasts under the hormonal and neuronal regulation mechanisms in response to mechanical force application. Therefore, it will inevitably impact periodontal tissues. Prolonged treatment can lead to adverse effects on teeth and periodontal tissues, prompting the development of various methods to reduce the length of orthodontic treatment.

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High defect concentrations at the interfaces are the basis of charge extraction losses and instability in perovskite solar cells. Surface engineering with organic cations is a common practice to solve this issue. However, the full implications of the counteranions of these cations for device functioning are often neglected.

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Background: Retail involves directly delivering goods and services to end consumers. Natural disasters and epidemics/pandemics have significant potential to disrupt supply chains, leading to shortages, forecasting errors, price increases, and substantial financial strains on retailers. The COVID-19 pandemic highlighted the need for retail sectors to prepare for crisis impacts on sales forecasts by regularly assessing and adjusting sales volumes, consumer behavior, and forecasting models to adapt to changing conditions.

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