34,505 results match your criteria: "Slovak Republic; Comenius University in Bratislava[Affiliation]"

The study aimed to conduct a survey on the occurrence of benzimidazole (BZ) resistance in strongyles by in vitro egg hatch test (EHT) and larval development test (LDT) and to identify the effective indicators of early resistance detection on horse farms with associated risk factors analysis appraisal. In total, 203 horses from 8 farms underwent the fecal sampling of which 77 horses were selected for in vitro testing. Simultaneously, 18 horses were chosen to analyse the results of in vitro tests compared to the in vivo fecal egg count reduction test (FECRT).

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Efficient, non-destructive and real-time meat freshness assessment has always been a hot research topic. This paper presents a novel approach for detecting lamb meat freshness using a flexible optoelectronic sensing system combined with an integrated learning model. We developed a flexible impedance sensing system and a flexible optical sensing system through laser direct writing and transfer technology.

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Complex transcription regulation of acidic chitinase suggests fine-tuning of digestive processes in Drosera binata.

Planta

January 2025

Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Akademicka 2, P. O. Box 39A, 950 07, Nitra, Slovak Republic.

DbChitI-3, Drosera binata's acidic chitinase, peaks at pH 2.5 from 15 °C to 30 °C. Gene expression is stimulated by polysaccharides and suppressed by monosaccharide digestion, implying a feedback loop in its transcriptional regulation.

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Intraarterial Thrombolysis for Acute Limb Ischemia in a Newborn.

J Vasc Interv Radiol

January 2025

Clinic of Neonatology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Hospital Martin, Kollarova 2, 036 59 Martin, Slovakia. Electronic address:

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This exploratory study examines the effects of a single, brief (3-h) Chamber Restricted Environmental Stimulation Therapy (REST) session on emotional experience, state mindfulness, and physiological regulation in young adults. Previous research has shown preliminary evidence, that REST offers a range of benefits in managing stress and mental well-being. We focused on young adult population, a group particularly vulnerable to stress, digital dependence and immersion, who often lack time for self-reflection and contemplative activities, while navigating numerous distractions.

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Biocompatibility of Phosphorus Dendrimers and Their Antibacterial Properties as Potential Agents for Supporting Wound Healing.

Mol Pharm

January 2025

Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland.

Dendrimers are a wide range of nanoparticles with desirable properties that can be used in many areas of medicine. However, little is known about their potential use in wound healing. This study examined the properties of phosphorus dendrimers that were built on a cyclotriphosphazene core and pyrrolidinium (DPP) or piperidinium (DPH) terminated groups, to be used as potential factors that support wound healing ().

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Machine Condition Monitoring System Based on Edge Computing Technology.

Sensors (Basel)

December 2024

Institute of Applied Informatics, Automation and Mechatronics, Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, 812 43 Bratislava, Slovakia.

The core of this publication is the design of a system for evaluating the condition of production equipment and machines by monitoring selected parameters of the production process with an additional sensor subsystem. The main positive of the design is the processing of data from the sensor layer using artificial intelligence (AI) and expert systems (ESs) with the use of edge computing (EC). Sensor information is processed directly at the sensor level on the monitored equipment, and the results of the individual subsystems are stored in the form of triggers in a database for use in the predictive maintenance process.

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Neural tube defects (NTDs) are malformations of the central nervous system that represent the second most common cause of congenital morbidity and mortality, following cardiovascular abnormalities. Maternal nutrition, particularly folic acid, a B vitamin, is crucial in the etiology of NTDs. FA plays a key role in DNA methylation, synthesis, and repair, acting as a cofactor in one-carbon transfer reactions essential for neural tube development.

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Synergistic Effects of Omega-3 Fatty Acids and Physical Activity on Oxidative Stress Markers and Antioxidant Mechanisms in Aged Rats.

Nutrients

December 2024

Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Faculty of Medicine, Sasinkova 2, 811 08 Bratislava, Slovakia.

Background: Aging induces degenerative processes in the body, contributing to the onset of various age-associated diseases that affect the population. Inadequate dietary habits and low physical activity are major contributors to increased morbidity during aging. This study aimed to investigate the combined effects of omega-3 fatty acid supplementation and physical activity on the markers of oxidative stress and antioxidant defense mechanisms in aged male Wistar rats (23-24 months).

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Theoretical Study of Antioxidant and Prooxidant Potency of Protocatechuic Aldehyde.

Int J Mol Sci

January 2025

Institute for Information Technologies Kragujevac, Department of Science, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia.

In this study, the antioxidant and prooxidant potency of protocatechuic aldehyde (PCA) was evaluated using density functional theory (DFT). The potency of direct scavenging of hydroperoxyl (HOO) and lipid peroxyl radicals (modeled by vinyl peroxyl, HC=CHOO) involved in lipid peroxidation was estimated. The repair of oxidative damage in biomolecules (lipids, proteins and nucleic acids) and the prooxidant ability of PCA phenoxyl radicals were considered.

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Gliomas are the most common and lethal forms of malignant brain tumors. We attempted to identify the role of the aging-suppressor gene and Klotho protein in the immunopathogenesis of gliomas. We examined genetic variants by PCR-RFLP and measured serum Klotho levels using the ELISA method.

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Fertility disorders are a worldwide problem affecting 8-12% of the population, with the male factor substantially contributing to about 40-50% of all infertility cases. Mitochondria, crucial organelles for cellular viability, play a pivotal role in the processes of spermatogenesis and significantly affect sperm quality and their fertilizing ability. Mitochondrial oxidative phosphorylation (OXPHOS) dysfunction, reduced energy supply for sperm, reduced endogenous coenzyme Q (CoQ) levels, and oxidative stress are among the main factors that contribute to male infertility.

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Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a highly arrhythmogenic syndrome triggered by stress, primarily linked to gain-of-function point mutations in the cardiac ryanodine receptor (RyR2). Flecainide, as an effective therapy for CPVT, is a known blocker of the surface-membrane Na channel, also affecting the intracellular RyR2 channel. The therapeutic relevance of the flecainide-RyR2 interaction remains controversial, as flecainide blocks only the RyR2 current flowing in the opposite direction to the physiological Ca release from the sarcoplasmic reticulum (SR).

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Breast cancer (BC) is one of the most prevalent forms of cancer globally, and has recently become the leading cause of cancer-related mortality in women. BC is a heterogeneous disease comprising various histopathological and molecular subtypes with differing levels of malignancy, and each patient has an individual prognosis. Etiology and pathogenesis are complex and involve a considerable number of genetic alterations and dozens of alterations in non-coding RNA expression.

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The aim of this study was to compare the mechanical properties of carbon-fiber-reinforced polymer (CFRP) composites produced using three popular technologies. The tests were performed on composites produced from prepregs in an autoclave, the next variant is composites produced using the infusion method, and the third variant concerns composites produced using the vacuum-assisted hand lay-up method. For each variant, flat plates with dimensions of 1000 mm × 1000 mm were produced while maintaining similar material properties and fabric arrangement configuration.

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Titanium alloys, particularly Ti-6Al-4V, are widely used in many industries due to their high strength, low density, and corrosion resistance. However, machining these materials is challenging due to high strength at elevated temperatures, low thermal conductivity, and high chemical reactivity. This study investigates Recurrence Plot (RP) and Recurrence Quantification Analysis (RQA) to analyze tool wear during the finish turning of Ti-6Al-4V.

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Friction is an unfavourable phenomenon in deep-drawing forming processes because it hinders the deformation processes and causes deterioration of the surface quality of drawpieces. One way to reduce the unfavourable effect of friction in deep-drawing processes is to use lubricants with the addition of hard particles. For this reason, this article presents the results of friction tests of dual-phase HCT600X+Z steel sheets using the flat die strip drawing test.

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Stinging nettles () have a long history of association with human civilization, having been used as a source of textile fibers, food and medicine. Here, we present a chromosome-level, phased genome assembly for a diploid female clone of from Romania. Using a combination of PacBio HiFi, Oxford Nanopore, and Illumina sequencing, as well as Hi-C long-range interaction data (using a novel Hi-C protocol presented here), we assembled two haplotypes of 574.

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Plants are frequently challenged by a variety of microorganisms. To protect themselves against harmful invaders, they have evolved highly effective defense mechanisms, including the synthesis of numerous types of antimicrobial peptides (AMPs). Snakins are such compounds, encoded by the (Gibberellic Acid-Stimulated Arabidopsis) gene family, and are involved in the response to biotic and abiotic stress.

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Background: The detection of explosives in crime scene investigations is critical for forensic science. This study explores the application of laser desorption (LD) ion mobility spectrometry (IMS) as a novel method for this purpose utilising a new IMS prototype developed by MaSaTECH.

Methods: The LD sampling technique employs a laser diode module to vaporise explosive traces on surfaces, allowing immediate analysis by IMS without sample preparation.

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Revealing the Complexity of Host-Parasite Relationships Between Syringophilid Mites and Sunbirds in Their Global Range.

Animals (Basel)

January 2025

Laboratory and Museum of Evolutionary Ecology, Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 080 01 Prešov, Slovakia.

This article emphasises the importance of parasitological research in understanding ecological dynamics and biodiversity conservation through a global analysis of quill mites (Syringophilidae) parasitising Sunbirds (Nectariniidae). Data from 764 Sunbird individuals across seventy-six species revealed twelve quill mite species, including three newly described species: Sikora and Unsoeld sp. n.

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Objective: The City Birth Trauma Scale (City BiTS) is a questionnaire designed to assess the posttraumatic symptoms after birth. This study aimed to explore the factors structure, internal consistency, known-groups validity, and convergent validity of the City Birth Trauma Scale in Slovakia.

Methods: Cross-sectional Slovak national data from the INTERSECT study were analyzed in this study.

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An Early-Stage Economic Evaluation of Superabsorbent Wound Dressings for the Management of Moderately to Highly Exuding Leg Ulcers in Slovakian Settings.

Adv Skin Wound Care

January 2025

At Paul Hartmann AG, Heidenheim, Germany, Vladica M. Veličković, MD, is Head of Evidence Generation; Anna Serafin, PhD, is Senior Project Manager Clinical Investigation; Yana Arlouskaya, MS, is Project Manager Clinical Investigations; and Thurid-Christiane Milde, MBA, is Senior Manager Global HEOR Support, Wound Care. Beáta Grešš Halász, PhD, is Lecturer, Department of Nursing, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Košice, Slovakia.

Background: The management of chronic leg ulcers, including venous leg ulcers (VLUs), causes a considerable economic and clinical burden to healthcare systems. Factors such as nursing time, hospital care, and wound dressings account for approximately 85% of the total cost. Superabsorbent dressings (eg, superabsorbent polymers [SAPs]) are recommended as a first-line treatment for moderately to highly exuding VLUs.

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A major risk to the poultry industry is antimicrobial resistance (AMR), specifically with regard to Mycoplasma gallisepticum (MG) infections. The sensitivity patterns of 100 MG isolates to biocides and antibiotics were examined in this study to clarify the interactions between antimicrobial agents and resistance mechanisms. The antimicrobial activity against MG was assessed using broth microdilution, and the results are shown as the minimum inhibitory concentration (MIC) for each strain, the MIC distribution (range), the MIC, and/or the MIC.

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