26,034 results match your criteria: "Slovakia; Center for Interdisciplinary Biosciences[Affiliation]"

The poison ivy does not normally occur in Slovakia, like in the Czech Republic, but it can be introduced. The venom of the black widow spider is an effective weapon for capturing prey. It is a mixture of various active substances containing a protein neurotoxin called α-latrotoxin (α-LTX).

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Patients infected with human immunodeficiency virus (HIV) have long been considered unsuitable candidates for solid organ transplantation due to their poor prognosis. After the introduction of combination antiretroviral therapy, the survival of this group of patients improved significantly. HIV positive patients had been successfully transplanted for the last 18 years.

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Article Synopsis
  • Mitochondrial shape is crucial for cell health, but assessing it in yeast cells is challenging due to limited methods.
  • A new deep learning model called MitoSegNet was developed, outperforming traditional methods in accurately segmenting mitochondria in yeast cells.
  • The study revealed unique mitochondrial changes in a specific yeast strain (mmi1Δ) under oxidative stress, and all tools and procedures used are publicly accessible online for further research.
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Are managers of emerging markets more opportunistic? application of Benford's Law.

PLoS One

December 2024

Faculty of Management, Department of Economics and Finance, Comenius University Bratislava, Bratislava, Slovakia.

Purpose: The current research analyzes cosmetic earnings management practices in emerging and developed markets before and after the global financial crisis.

Design/methodology/approach: Using digital analysis, by applying Benford's Law the study analyzes the earnings adjustments that exceed a key reference point to determine whether earnings management anomaly exists or not? Based on a sample of 87165 firm-year observations of UK, US, Brazil, Russia, India, China and Pakistan listed corporations.

Findings: Findings show that the managers of emerging markets have more incentive to manipulate earnings than their counterparts from developed markets.

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Differential impact of infection on the microbiota of and .

Heliyon

November 2024

ANSES, INRAE, École Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France.

The Western honey bee () is a vital agricultural pollinator whose populations are threatened by the parasitic mite destructor and associated pathogens. While the impact of species on honey bees, particularly larvae causing American foulbrood, is documented, their effect on the microbiota of mites remains unclear. This study aimed to investigate the influence of sp.

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Endoscopic ultrasound navigated application of botulinum toxin in severe esophageal motility disorder.

Clin J Gastroenterol

December 2024

Clinic of Internal Medicine-Gastroenterology, University Hospital in Martin, Jessenius Faculty of Medicine, Martin, Slovakia.

The use of botulinum toxin in the therapy of esophageal motility disorders is reserved for elderly and comorbid patients considered risky for endoscopic or surgical treatment. However, there is a lack of data on the treatment of motility disorders outside the Chicago classification.We present the case of a 56-year-old patient with dysphagia and non-cardial chest pain (Eckardt 8).

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The effect of acute stress response on conspiracy theory beliefs.

Politics Life Sci

December 2024

Department of Psychiatry, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.

The endorsement of conspiracy theories may be increased by subjectively perceived stress. Yet, it is not known whether this correlation is caused by the effects of the acute stress reaction on the brain or other psychological, social, or methodological factors. The effect of an experimentally induced acute stress reaction on conspiracy thinking was tested on a sample (n = 115) of students of medicine.

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Article Synopsis
  • - The study conducted a meta-analysis on the prevalence and levels of Ochratoxin A (OTA) in beer, reviewing 30 papers with a total of 70 data reports, which revealed a combined OTA prevalence of 50.60%.
  • - The countries with the highest OTA levels in beer were identified as South Africa, Slovakia, Portugal, Tunisia, and Greece, with South Africa having the highest concentration at 1170.750 μg/L.
  • - While the risk of non-carcinogenic effects from OTA in beer is deemed acceptable in most countries, it is advised to improve the quality control of raw materials like barley, especially in South Africa and Slovakia.
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An uncommon host-parasite relationship is presented: Carnus hemapterus Nitzsch, 1818 (Diptera: Carnidae) parasiting fledgling of Coracias garrulus Linnaeus, 1758. This host association has hitherto not been recorded from the territory of Romania.

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Background: In the BUDAPEST (Biventricular Upgrade on left ventricular reverse remodeling and clinical outcomes in patients with left ventricular Dysfunction and intermittent or permanent APical/SepTal right ventricular pacing)-CRT Upgrade randomized trial, the authors have demonstrated improved mortality and morbidity after cardiac resynchronization therapy (CRT) upgrade in patients with heart failure with reduced ejection fraction (HFrEF) with high right ventricular (RV) pacing burden.

Objectives: This substudy sought to examine the impact of CRT upgrade on symptoms, functional outcome, and exercise capacity.

Methods: In the BUDAPEST-CRT Upgrade trial, 360 HFrEF patients with pacemaker or implantable cardioverter-defibrillator (ICD) and ≥20% RV pacing burden were randomly assigned (3:2) to cardiac resynchronization therapy with defibrillator (CRT-D) upgrade (n = 215) or ICD (n = 145).

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Is virtual reality enhancing dental anatomy education? A systematic review and meta-analysis.

BMC Med Educ

November 2024

Institute of Biology, Genetics, and Clinical Genetics, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, Bratislava, 811 08, Slovakia.

Article Synopsis
  • * A systematic review of studies demonstrated that VR can significantly improve learning compared to traditional methods, showing a moderately positive effect on dental anatomy education outcomes.
  • * While VR enhances knowledge retention, it still lags behind hands-on clinical training and real models; some users reported discomfort or disorientation during use.
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  • The Linearbandkeramik (LBK) Neolithic communities were pioneers in spreading agriculture across Europe and this study showcases genetic data from 250 individuals to understand their ancestry.
  • The findings reveal a notable difference in ancestry, with eastern LBK sites having a higher percentage of western hunter-gatherer genetics compared to western sites, indicating separate genetic paths for these groups.
  • Additionally, the research suggests a patrilocal social structure, featuring more genetic connections among males within sites, and points out that the massacre at Asparn-Schletz likely involved individuals from a large population rather than a small community.
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Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness, inflammation, and remodeling. Calcium (Ca)-activated chloride (Cl) channels, such as TMEM16A, are inferred to be involved in asthma. Therefore, the present study investigated the therapeutic potential of TMEM16A inhibition in a guinea pig model of ovalbumin (OVA)-induced allergic asthma.

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The three clap test: a window into cognitive and frontal lobe dysfunction.

Neurol Sci

November 2024

Parkinsonism and Movement Disorders Treatment Center, Zvolen Hospital, Zvolen, Slovakia.

Article Synopsis
  • The three clap test (TCT) is a quick bedside assessment that can reveal the applause sign (AS), which is characterized by patients clapping more than three times when asked to clap just three times.
  • The AS helps distinguish between various neurological conditions, including progressive supranuclear palsy (PSP) and Parkinson's disease (PD), but can also appear in other conditions like Alzheimer's disease and frontotemporal dementia (FTD).
  • The TCT can reveal additional behaviors, such as the non-applause sign linked to apathy in FTD and the jumping the gun sign indicating impulsivity in PSP, highlighting its value in clinical practice for assessing cognitive functions and behaviors.
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  • The study aimed to assess the link between Bcl-2 protein, Ki-67 antigen expression, and the apoptotic index in relation to the behavior of non-melanoma eyelid tumors, particularly focusing on their aggressiveness.
  • A total of 68 patients with 70 confirmed non-melanoma eyelid tumors were analyzed, with basal cell carcinoma being the most common type and a significant correlation found between tumor size and aggressiveness.
  • The findings suggest that understanding these biomarkers can help in tailoring effective treatments to improve aesthetic results and survival rates for patients with these tumours.
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Antimony resistant bacteria isolated from Budúcnosť adit (Pezinok-Kolársky vrch deposit) in western Slovakia.

Heliyon

November 2024

Slovak National Museum - Natural History Museum, Vajanského nábrežie. 2, P.O. Box 13, 81006, Bratislava, Slovak Republic.

Potentially toxic elements (PTE), such as antimony (Sb), are dangerous putative contaminants for ground and surface waters around abandoned mines and ore deposits in Slovakia. Nearby mines antimony is commonly coprecipitated in ochre sediments precipitated from Fe-rich drainage waters and, therefore, these sites function as natural scavengers of this metalloid. Bacteria are well known to contribute to the process of redox state maintenance, biosorption and bioaccumulation of antimony and, consequently, to antimony precipitation or release from iron oxides complexes.

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Activation of mouse skin mast cells and cutaneous afferent C-fiber subtypes by bee venom.

Neurosci Lett

January 2025

Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Cir, Baltimore, MD 21224, USA. Electronic address:

In mammals, many Hymenopteran stings are characterized by pain, redness, and swelling - three manifestations consistent with nociceptive nerve fiber activation. The effect of a Western honeybee (Apis mellifera) venom on the activation of sensory C-fibers in mouse skin was studied using an innervated isolated mouse skin preparation that allows for intra-arterial delivery of chemicals to the nerve terminals in the skin. Our data show that honeybee venom stimulated mouse cutaneous nociceptive-like C-fibers, with an intensity (action potential discharge frequency) similar to that seen with a maximally-effective concentration of capsaicin.

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Optimisation of gene expression noise for cellular persistence against lethal events.

J Theor Biol

February 2025

Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716, USA. Electronic address:

Bacterial cell persistence, crucial for survival under adverse conditions like antibiotic exposure, is intrinsically linked to stochastic fluctuations in gene expression. Certain genes, while inhibiting growth under normal circumstances, confer tolerance to antibiotics at elevated expression levels. The occurrence of antibiotic events lead to instantaneous cellular responses with varied survival probabilities correlated with gene expression levels.

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The superiority of TBI-based versus chemotherapy-conditioning for allo-HSCT in children with ALL has been established in the international, prospective phase-III FORUM study (#NCT01949129), randomizing 417 patients ≤ 18 years at diagnosis (4-21 years at HSCT) in CR, transplanted from HLA-matched sibling or unrelated donors. Due to the unavailability of TBI in some regions and to accommodate individual contraindications, this study reports the pre-specified comparison of outcomes of patients receiving busulfan-based (BU) or treosulfan-based (TREO) regimens from 2013 to 2018. 180 and 128 patients (median age 9.

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Endoscopic retrograde cholangiopancreatography training conditions, results from a pan-European survey: Between vision and reality.

United European Gastroenterol J

November 2024

Junge Gastroenterologie (JuGa) - German Young Gastroenterology Study Group of the DGVS - German Society for Digestive and Metabolic Diseases, Berlin, Germany.

Background: Endoscopic retrograde cholangiopancreatography (ERCP) still has a relatively high complication rate, underscoring the importance of high-quality training. Despite existing guidelines, real-world data on training conditions remain limited. This pan-European survey aims to systematically explore the perceptions surrounding ERCP training.

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Highly efficient Zn Cd S catalysts with sphalerite structures synthesized a novel green method for hydrogen production by water splitting.

RSC Adv

November 2024

Departamento de Química, U.D. Química Inorgánica, Universidad de La Laguna Apto. 456 38200 La Laguna Tenerife Spain

Article Synopsis
  • The study introduces a new photochemical reactor paired with a mass spectrometer designed to measure hydrogen generation from photochemical water splitting.
  • Sphalerite-type Zn Cd S catalysts were created using an eco-friendly method that avoids harmful solvents and high temperatures, ensuring safer production.
  • The results demonstrated that the new reactor effectively measured hydrogen production rates, achieving a notable 29.5 mmol of hydrogen per gram after 100 minutes of visible light exposure, surpassing previous benchmarks for other materials.
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The estimation of foraging parameters is fundamental for understanding predator ecology. Predation and feeding can vary with multiple factors, such as prey availability, presence of kleptoparasites and human disturbance. However, our knowledge is mostly limited to local scales, which prevents studying effects of environmental factors across larger ecological gradients.

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Management of late postoperative capsular bag distension syndrome - two year case series.

Eur J Ophthalmol

November 2024

Department of Ophthalmology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.

Introduction: Late capsular bag distension syndrome (CBS) is a rare complication of the ^lcataract surgery.

Aim: The aim is to present 9 cases with delayed presentation and describe their successful management with surgical approach.

Method: A two-year retrospective review of 9 cases was undertaken.

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High Doses of Vitamin D and Specific Metabolic Parameters in Type 2 Diabetes Patients: Systematic Review.

Nutrients

November 2024

5th Department of Internal Medicine, Faculty of Medicine, University Hospital, Comenius University, Ruzinovska 6, 826 06 Bratislava, Slovakia.

Type II diabetes mellitus (T2DM) is recognized as a condition of mild chronic inflammation, marked by increased levels of acute-phase proteins and various inflammatory indicators. These inflammatory substances, along with inflammation of adipose tissue and the secretion of adipocytokines, can contribute to insulin resistance and β cell dysfunction. By influencing both innate and adaptive immunity, vitamin D can inhibit the production of inflammatory cytokines and help mitigate the low-grade chronic inflammation associated with T2DM.

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Background/objective: Optimal vitamin D levels are required for bone health and proper functionality of the nervous, musculoskeletal and immune systems. The objective of this study was to assess the efficacy and safety profiles of new weekly calcifediol formulations with the potential to improve adherence and outcome.

Methods: A Phase II-III, double-blind, randomized, multicentre trial (EudraCT 2020-001099-14 and NCT04735926).

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