26,035 results match your criteria: "Slovakia; Center for Interdisciplinary Biosciences[Affiliation]"

Protein phosphorylation is a dynamic, reversible posttranslational modification that plays an important role in the regulation of cell signaling. Recently, label-free quantitative (LFQ) phosphoproteomics has become a powerful tool to analyze the phosphorylation of proteins within complex samples. In this chapter, we describe how to apply LFQ phosphoproteomics that is based on Fe-IMAC phosphopeptide enrichment followed by strong anion exchange (SAX) and porous graphitic carbon (PGC) fractionation strategies for identification and quantification of changes in the phosphoproteome in the fission yeast Schizosaccharomyces pombe.

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Current knowledge of tumor biology offers many "targets" for therapeutic intervention. The molecular basis of many processes that play a role in the pathogenesis of colorectal cancer has been identified. One part of colorectal cancer clinical trials is focused on testing substances in a group of patients with tumors in which the TGF-β signalling pathway is hyperactivated.

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The application of smart pH-sensitive carriers has become an ideal choice for administering drugs with desired release profiles. Although pH-sensitive microbeads offer distinct benefits for delivering anticancer drugs orally, they encounter drawbacks, including low encapsulation efficiency, weak mechanical stability, biocompatibility concerns, and the risk of abrupt release. This study focuses on developing pH-sensitive coated composite microbeads for effective encapsulation and sustained release of 5-fluorouracil (5-FU).

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Gyrophoric acid (GA) is a secondary metabolite of various lichens. It exhibits various biological activities in vitro, but only one study has been carried out in vivo. Because our previous study showed that GA stimulates neurogenesis in healthy rats, the current study aimed to explore the potential of GA during stress-induced depressive-like states in male Wistar rats.

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The conditions in livestock housing are suitable for the survival of airborne microorganisms, mainly due to high temperatures, humidity, and the presence of organic material. The total count of airborne bacteria concentrations in cattle farms ranged from 3.01 log CFU/mL to 6.

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PETG as an Alternative Material for the Production of Drone Spare Parts.

Polymers (Basel)

October 2024

University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, Serbia.

Material selection is the main challenge in the drone industry. In this study, hardness, abrasive wear, impact resistance, tensile strength, and durability (frost resistance and accelerated ageing) were identified as important characteristics of drone materials. The additive manufacturing technology was used to produce the drone leg specimens and prototype.

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Article Synopsis
  • Advancements in biomaterials and biology now allow for the 3D printing of biodegradable hard tissue substitutes, highlighting bioadditive manufacturing's ability to create complex implant designs with fewer limitations compared to traditional methods.
  • The study involved three blends of polylactic acid (PLA) and polyhydroxybutyrate (PHB), with varying concentrations of oligomeric lactic acid (OLA) and structural forms (solid and porous), which were tested for biodegradation in different solutions.
  • Results showed that porous structures had better absorption and biodegradation, while higher OLA concentrations in the blends helped maintain a stable pH, reducing acidification during material degradation.
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The Role of HE4 in the Follow-Up of Advanced Ovarian, Fallopian Tube, and Primary Peritoneal Cancer-CEEGOG OX-01 Study.

Cancers (Basel)

October 2024

Department of Gynecology and Obstetrics, Faculty of Medicine in Pilsen, University Hospital Pilsen, Charles University, 323 00 Pilsen, Czech Republic.

: Ovarian, fallopian tube, and primary peritoneal cancers often share clinical characteristics and are typically diagnosed at advanced stages due to nonspecific symptoms. The utility of tumor markers, particularly CA125 and HE4, in the diagnosis and follow-up of these cancers remains an area of active investigation. : The CEEGOG (Central and Eastern European Gynecologic Oncology Group) OX-01 study aimed to evaluate HE4's role alongside CA125 in follow-up for advanced-stage ovarian, fallopian tube, and primary peritoneal cancers.

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Influence of Strain Rate on Barkhausen Noise in Trip Steel.

Materials (Basel)

October 2024

Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, 120 00 Prague, Czech Republic.

This paper deals with Barkhausen noise in Trip steel RAK 40/70+Z1000MBO subjected to uniaxial plastic straining under variable strain rates. Barkhausen noise is investigated especially with respect to microstructure alterations expressed in terms of phase composition and dislocation density. The effects of sample heating and the corresponding Taylor-Quinney coefficient are considered as well.

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A Case Study on the Possibility of Extending the Service Life of the Demining Machine Belt.

Materials (Basel)

October 2024

Department of Technological Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia.

The operational practice of the design of the Bozena 5 demining machine has shown that its belts are the critical component that fundamentally affects the functionality of the entire machine. This article is a practical continuation and extension of the previous research results from the point of view of materials (research of the uniaxial fatigue life in bending and torsion), calculation (creation of the necessary mathematical, analytical and numerical models for the research) and construction (i.e.

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Background: Pediatric kidney transplantations are rarely performed, and there is limited knowledge about the diversity in current clinical practices across Europe. This study aims to explore the utility of clinical snapshot studies in identifying these disparities, establishing a foundation for future snapshot studies and standardization efforts.

Methods: A pilot clinical snapshot study was conducted, with invitations extended to all 109 pediatric kidney transplant centres in Europe.

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Unlabelled: Temporal trend analysis of the Google-search volumes and terms related to water, sanitation and hygiene (WASH) in South Africa was performed using a computer plugin between January 2004 and June 2022. This study was conducted as WASH has played an important role in the containment of the recent coronavirus disease 2019 (COVID-19) pandemic, and it is also one of the most effective and easiest-to-deploy tools in decreasing risk from infectious diseases. For the WASH-related terms, the monthly search volumes ranged from the minimum average of 480 for pit latrines to the maximum of 30236 for diarrhea or diarrhoea for the studied period.

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Direct aqueous injection LC-ESI-MS/MS analysis for the determination of 23 EU watch list substances in whole water samples.

Chemosphere

November 2024

Water Research Institute, Slovak National Water Reference Laboratory, Nábrežie arm. gen. L. Svobodu 5, 812 49, Bratislava, Slovakia. Electronic address:

Article Synopsis
  • The Watch List (WL) program in the EU focuses on detecting emerging pollutants in water that could harm human health and the environment, necessitating effective analysis methods.
  • This study introduces a fast, eco-friendly method to analyze 23 WL substances, including antibiotics, pesticides, and sunscreens, using direct aqueous injection and liquid chromatography with mass spectrometry.
  • The method demonstrated strong performance, with good recovery rates and quantification limits, earning a green score of 0.61, making it ideal for both screening and monitoring environmental water samples.
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One of the critical processes in human reproduction that is still poorly understood is implantation. The implantation of an early human embryo is considered a significant limitation of successful pregnancy. Therefore, researchers are trying to develop an ideal model of endometrium that can mimic the endometrial micro-environment as much as possible.

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Introduction: Alzheimer's disease (AD) is marked by the accumulation of fibrillary aggregates composed of pathological tau protein. Although neuroinflammation is frequently observed in conjunction with tau pathology, current preclinical evidence does not sufficiently establish a direct causal role in tau tangle formation. This study aimed to evaluate whether chronic Toll-like receptor 4 (TLR4) stimulation, induced by a high dose of lipopolysaccharide (LPS, 5 mg/kg), exacerbates neurofibrillary tangle (NFT) pathology in a transgenic mouse model of tauopathy that expresses human truncated 151-391/3R tau, an early feature of sporadic AD.

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The pros and cons of probiotic use in pediatric oncology patients following treatment for acute lymphoblastic leukemia.

Front Pediatr

October 2024

Department of Biological and Medical Science, Faculty of Physical Education and Sports, Comenius University in Bratislava, Bratislava, Slovakia.

Article Synopsis
  • - Acute lymphoblastic leukemia (ALL) treatments such as chemotherapy and radiotherapy negatively affect gut microbiota in children, leading to reduced microbial diversity and an increase in harmful bacteria.
  • - Probiotics may help restore gut health, alleviate side effects from treatment, and enhance quality of life for pediatric patients, but there are risks for immunocompromised individuals.
  • - More research is needed to understand the mechanisms of probiotics and their effects on overall pediatric health, with the potential for their integration into ALL treatment plans to improve outcomes and minimize complications.
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Environmental pollution results in serious health hazards to animals, reflected in biogenic and risk element concentrations in animal tissues. The objective of this study was to examinate concentration of selected elements in testes, and epididymal spermatozoa motility of wild boars. Wild boars were hunted in region Žuhračka - Levice, Slovak Republic.

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Within the research conducted in the years 2016-2022 in the area of Volovsky Mountains in Slovakia, 63,950 biting midges were collected during 74 trapping sessions. The aim of the study was to identify species composition of biting midges, their host preference and potential transmission of parasites by these insects under natural conditions. The collected biting midges fell into 29 species and the most common were the Culicoides (C.

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Article Synopsis
  • Knotweed plants (Reynoutria sp.) are typically recognized as invasive species but have beneficial secondary metabolites in their rhizomes and leaves.
  • The study aimed to identify which of three knotweed species—Reynoutria japonica, Reynoutria × bohemica, and Reynoutria sachalinensis—best enhances wheat seed growth.
  • Results indicated that all knotweed extracts improved wheat germination and growth, with R. × bohemica showing the most significant benefits in seedling vigor and various growth metrics.
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PangeBlocks: customized construction of pangenome graphs via maximal blocks.

BMC Bioinformatics

November 2024

Department of Informatics, Systems, and Communications, University of Milano - Bicocca, Viale Sarca, 20126, Milano, Italy.

Background: The construction of a pangenome graph is a fundamental task in pangenomics. A natural theoretical question is how to formalize the computational problem of building an optimal pangenome graph, making explicit the underlying optimization criterion and the set of feasible solutions. Current approaches build a pangenome graph with some heuristics, without assuming some explicit optimization criteria.

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Article Synopsis
  • * Current guidelines emphasize that lower levels of low-density lipoprotein cholesterol (LDL-C) are better, advocating for early and aggressive treatment, including a variety of effective medications beyond just statins.
  • * The International Lipid Expert Panel (ILEP) has published guidelines for optimizing LLT in post-ACS patients, highlighting the need for combination therapies and personalized care to improve adherence and treatment outcomes among high-risk individuals.
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Adapting generalized suitability curves from Brown trout to Minnow using 1D and 2D aquatic habitat models.

Sci Rep

November 2024

UNESCO Department for Ecological Awareness and Sustainable Development, Faculty of Ecological and Environmental Sciences, Technical University in Zvolen, Zvolen, Slovak Republic.

The article focuses on adapting generalized depth preference and flow velocity characteristics from Brown trout (Salmo trutta morpha fario) to the Minnow (Phoxinus phoxinus). The results obtained were used to model habitat suitability with 1D and 2D models. Since 1995, research on assessing aquatic habitat quality has been ongoing on 77 mountain streams in Slovakia.

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Nano selenium in broiler feeding: physiological roles and nutritional effects.

AMB Express

November 2024

Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Estado de México, Mexico.

Using nanotechnology, while improving the health of broiler chickens, it is possible to control and reduce the conflict of minerals in the intestines, and toxicity of and pollution by these elements. It could be shown that the antioxidant and immune modulation effects of nano selenium are significantly superior compared to other sources of selenium. In addition, improving the quality of meat products with the use of nano selenium has promising results in the future perspective of quality improvement and food safety.

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The SQ tree sublingual immunotherapy tablet is effective and well tolerated in children-A pivotal phase III trial.

Allergy

November 2024

Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.

Background: Allergic rhinitis and/or conjunctivitis (AR/C) induced by tree pollen is common and negatively impacts quality of life in children and adolescents. This phase III trial investigated the efficacy and safety of the SQ tree SLIT-tablet in a paediatric population (5-17 years) with moderate-to-severe AR/C induced by pollen from birch and trees in the birch homologous group.

Methods: Nine hundred and fifty-two subjects were randomized (1:1) to daily treatment with SQ tree SLIT-tablet or placebo for up to 52 weeks and had free access to AR/C symptom-relieving medications.

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