115,579 results match your criteria: "Czech Republic; University Hospital Olomouc Department of Neurology[Affiliation]"

SMARCA4 regulates the NK-mediated killing of senescent cells.

Sci Adv

January 2025

MRC Laboratory of Medical Sciences (LMS), Du Cane Road, London W12 0NN, UK.

Induction of senescence by chemotherapeutic agents arrests cancer cells and activates immune surveillance responses to contribute to therapy outcomes. In this investigation, we searched for ways to enhance the NK-mediated elimination of senescent cells. We used a staggered screen approach, first identifying siRNAs potentiating the secretion of immunomodulatory cytokines to later test for their ability to enhance NK-mediated killing of senescent cells.

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Modelling of online shopping behavior in the Czech online environment.

PLoS One

January 2025

Faculty of Operation and Economics of Transport and Communications, Department of Economics, University of Zilina, Zilina, Slovakia.

The online environment has its own specifics, which shape the specific behavior of all market subjects, both customers and companies that trade electronically. The aim of the paper is to create, quantify and verify a conceptual comprehensive model of relationships between determinants that influence consumers when shopping online. The impetus for the conducted research was the discovery of the non-existence of a comprehensive model of online shopping behavior that reflects the specifics of the online environment.

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Background And Aims: Patients with very early-onset inflammatory bowel disease (VEO-IBD), with an age of onset < 6 years, can present with severe manifestations and may require biologic therapy. Infliximab and adalimumab are approved for induction and maintenance in pediatric IBD patients but are licensed only above the age of 6 years. Effectiveness and safety data on adalimumab in this patient population are lacking.

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Bone marrow stromal cells (BMSCs) serve as a valuable reservoir of multipotent stem cells important in the regulation of bone homeostasis and energy metabolism. Here, we present a protocol for isolating human BMSCs (hBMSCs) and characterizing their cellular metabolism related to hBMSC functional properties. We describe steps for bioenergetics, cell senescence, and production of reactive oxygen species (ROS), together with description of the data analysis.

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Molecular dynamics (MD) simulations are an important and well-established tool for investigating RNA structural dynamics, but their accuracy relies heavily on the quality of the employed force field (). In this work, we present a comprehensive evaluation of widely used pair-additive and polarizable RNA s using the challenging UUCG tetraloop (TL) benchmark system. Extensive standard MD simulations, initiated from the NMR structure of the 14-mer UUCG TL, revealed that most s did not maintain the native state, instead favoring alternative loop conformations.

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Aim: This study aimed to evaluate the compliance of dentists in Croatia and the Czech Republic with endodontic recommendations and identify the subjective and objective factors influencing their adherence to them.

Methodology: A total of 1386 dentists from Croatia and the Czech Republic participated in an online survey through a self-administered, author-designed questionnaire. After excluding those who did not perform root canal treatments (RCT), 1376 responses (394 from Croatia and 982 from the Czech Republic) were statistically analysed.

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A Protocol for GC-MS Profiling of Chiral Secondary Amino Acids.

Methods Mol Biol

January 2025

Laboratory of Analytical Biochemistry & Metabolomics, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic.

A simple analytical workflow is described for gas chromatographic-mass spectrometric (GC-MS)-based chiral profiling of secondary amino acids (AAs) in biological matrices. The sample preparation is carried out directly in aqueous biological sample extracts and involves in situ heptafluorobutyl chloroformate (HFBCF) derivatization-liquid-liquid microextraction of nonpolar products into hexane phase followed by subsequent formation of the corresponding methylamides from the HFB esters by direct treatment with methylamine reagent solution. The (O, N) HFB-butoxycarbonyl-methylamide AA products (HFBOC-MA) are separated on a Chirasil-L-Val capillary column and quantitatively measured by GC-MS operated in selected ion monitoring (SIM) mode.

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Total joint arthroplasty of the thumb CMC joint.

Arch Orthop Trauma Surg

January 2025

Department of Orthopaedics and Traumatology, Second Faculty of Medicine, Charles University in Prague and University Hospital Motol, Prague, Czech Republic.

Purpose Of The Study: Rhizarthrosis-osteoarthritis of the thumb carpometacarpal (CMC) joint is usually a primary idiopathic disease. Total joint arthroplasty (TJA) is one of the surgical treatment options for symptomatic advanced thumb CMC arthritis. This retrospective study aims to evaluate the mid-term functional and radiological results of TJA with the minimum follow-up period of 3 years after the surgery.

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Automated analysis of spoken language differentiates multiple system atrophy from Parkinson's disease.

J Neurol

January 2025

Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, Praha 6, 16000, Prague, Czech Republic.

Background And Objectives: Patients with synucleinopathies such as multiple system atrophy (MSA) and Parkinson's disease (PD) frequently display speech and language abnormalities. We explore the diagnostic potential of automated linguistic analysis of natural spontaneous speech to differentiate MSA and PD.

Methods: Spontaneous speech of 39 participants with MSA compared to 39 drug-naive PD and 39 healthy controls matched for age and sex was transcribed and linguistically annotated using automatic speech recognition and natural language processing.

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Hearing thresholds at conventional and extended high frequencies in young personal listening devices' users: A pilot study.

Otolaryngol Pol

January 2025

Department of Epidemiology and Public Health, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic, Center for Hearing and Balance Disorders, Ostrava, Czech Republic, Department of Otorhinolaryngology and Head and Neck Surgery, Havířov Hospital and Clinic, Havířov, Czech Republic.

<b>Introduction:</b> The exposure to unsafe sound levels is considered a risk factor for developing noise-induced hearing loss (NIHL). Personal listening devices (PLDs) represent a common source of recreational noise among young adults. First changes of NIHL could be detected at extended high frequencies (EHFs).

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Structural, architectural, contractile or electrophysiological alterations may occur in the left atrium (LA). The concept of LA cardiopathy is supported by accumulating scientific evidence demonstrating that LA remodeling has become a cornerstone diagnostic and prognostic marker. The structure and the function of LA and left atrial appendage (LAA) which is an integral part of the LA, are key elements for a better understanding of multiple clinical conditions, most notably atrial fibrillation (AF), cardioembolism, heart failure and mitral valve diseases.

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A comprehensive summary of the ASEV-CzeSEV joint meeting on extracellular vesicles.

Extracell Vesicles Circ Nucl Acids

December 2024

Department of Experimental Biology, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic.

This report summarizes the ASEV-CzeSEV Joint Meeting on Extracellular Vesicles (EVs), held at the Medical University of Vienna in September 2024. The conference focused on introducing and expanding EV research and infrastructure within the Czech Republic and Austria, highlighting areas for collaboration. Key sessions featured research on EV-based diagnostics, tissue regeneration, interspecies communication and therapeutic applications, with an emphasis on shared resources and cross-border partnerships.

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High-resolution isotopic data link settlement complexification to infant diets within the Roman Empire.

PNAS Nexus

January 2025

Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche (DiSTABiF) and Mediterranean bioArchaeological Research Advances (MAReA) centre, Università degli studi della Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy.

Our study explores the potential relationship between infant feeding practices and settlement complexity in the Roman Empire through high-resolution Bayesian-modeled stable isotope measurements from incremental dentine. We compiled isotopic data from permanent first molars of individuals from various Roman sites: five from Bainesse (UK), 30 from Thessaloniki (Greece), along with new carbon and nitrogen isotope analyses from four individuals from Pompeii and six from Ostia Via del Mare (AVM). Our results reveal significant inter-site variability in breastfeeding durations, ranging from 1.

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poisoning in two horses: A case report.

Vet Med (Praha)

November 2024

Equine Clinic, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Brno, Czech Republic.

This case report describes the poisoning of two mares from the same paddock with (Black locust) bark. The poisoning manifested itself by the sudden onset of weakness and fever with transient improvement after the administration of non-steroidal anti-inflammatory drugs and fluids. After the initial stabilisation, the mares were left unattended overnight.

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Introduction: Initial evidence suggests that engaging with accepting communities on social media such as Instagram may inform sexual minority youths' sense of stigma and well-being. However, as existing research has predominately drawn upon cross-sectional or qualitative designs, it is currently unclear whether the positive experiences identified in previous research accumulate, endure, or evolve over time. We also know relatively little about whether engagement with accepting online communities is primarily a compensatory or enhancing behavior.

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Deciphering key nano-bio interface descriptors to predict nanoparticle-induced lung fibrosis.

Part Fibre Toxicol

January 2025

State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical School, Soochow University, Suzhou, Jiangsu, 215123, China.

Background: The advancement of nanotechnology underscores the imperative need for establishing in silico predictive models to assess safety, particularly in the context of chronic respiratory afflictions such as lung fibrosis, a pathogenic transformation that is irreversible. While the compilation of predictive descriptors is pivotal for in silico model development, key features specifically tailored for predicting lung fibrosis remain elusive. This study aimed to uncover the essential predictive descriptors governing nanoparticle-induced pulmonary fibrosis.

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Syndecan-1 in the Serum of Deceased Kidney Donors as a Potential Biomarker of Kidney Function.

Transplant Proc

January 2025

Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic; Department of Anaesthesiology and Intensive Care, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic; Faculty of Health Studies, Technical University in Liberec, Liberec, Czech Republic.

Background: The process of kidney transplantation remains the optimal treatment for end-stage renal disease, offering improved quality of life and increased survival rates compared to long-term dialysis. However, despite advances in surgical techniques, immunosuppression regimens, and post-operative care, there are still significant challenges in predicting the organ's status and long-term outcomes of transplantation. Among the many factors that influence graft survival, the quality of the donated organ plays a fundamental role.

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Teaching Pathological Physiology of Sepsis Using a High Fidelity Simulator.

Adv Physiol Educ

January 2025

Department of Pathological Physiology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic.

A good knowledge of the theoretical foundations of medicine helps students and physicians to better recognize and treat patients with complex medical conditions, including sepsis and septic shock. The article describes the authors' experience in implementing the analysis of sepsis and septic shock using a high-fidelity simulated clinical scenario in the course of pathological physiology for preclinical medical students. The unique aspect of our approach is the integration of core physiology concepts, such as homeostasis, causality, structure-function relationships, and fundamental pathophysiology concepts (e.

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Myocardial infarction in multivessel disease: Does presence of chronic total occlusion make a difference?

Int J Cardiol

January 2025

Department of Cardiology, University Hospital Královské Vinohrady, Prague, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic.

Background And Aims: Myocardial infarction (MI) in multivessel disease (MVD) and chronic total occlusion (CTO) is associated with high mortality. However, all-cause mortality of matched cohort without a CTO is unclear. Our aim was to analyse clinical characteristics, presenting symptoms, and survival of patients with MI in MVD and the possible impact of CTO on 1-year mortality.

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Neoadjuvant immunotherapy represents a pioneering approach in the preoperative treatment of cancer, offering novel avenues for tumor reduction and improved patient outcomes by modulating the immune response. This study investigated neoadjuvant immunotherapy using intratumoral administration of mannan-BAM, Toll-like receptor ligands, and antiCD40 antibody (MBTA therapy) followed by surgery in murine models of mouse tumor tissue (MTT) pheochromocytoma, B16-F10 melanoma, and 4T1 and E0771.lmb mammary carcinomas.

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African mole-rats (Bathyergidae, Rodentia) are subterranean rodents that live in extensive dark underground tunnel systems and rarely emerge aboveground. They can discriminate between light and dark but show no overt visually driven behaviours except for light-avoidance responses. Their eyes and central visual system are strongly reduced but not degenerated.

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Problem: The aetiology of nausea and vomiting in pregnancy is still not well understood.

Background: Previous research suggests that its incidence and severity are influenced by many different factors, including demographic, lifestyle and psychosocial factors.

Aim: This study aimed to test the effect of multiple factors (use of combined oral contraception (COC) on meeting the father, sex of the foetus, age when pregnant, parity, education, life standard/income, smoking before pregnancy and BMI) on levels of nausea and vomiting in pregnancy.

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