Publications by authors named "Kalman M"

Introduction: The present study demonstrates that in the same brain area the astroglia can express GFAP (the main cytoskeletal protein of astroglia) in some species but not in the others of the same vertebrate class. It contrasts the former opinions that the distribution of GFAP found in a species is characteristic of the entire class. The present study investigated birds in different phylogenetic positions: duck (Cairina moschata domestica), chicken (Gallus gallus domesticus), and quails (Coturnix japonica and Excalfactoria chinensis) of Galloanserae; pigeon (Columba livia domestica) of a group of Neoaves, in comparison with representatives of other Neoaves lineages, which emerged more recently in evolution: finches (Taeniopygia guttata and Erythrura gouldiae), magpie (Pica pica), and parrots (Melopsittacus undulatus and Nymphicus hollandicus).

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  • * A sample of 24,535 adolescents was examined, revealing no significant change in obesity rates between boys and girls across all SES categories during the study period.
  • * Findings indicate that low-SES families have higher obesity rates, with factors like daily physical activity reducing obesity chances, while skipping breakfast increases obesity risk, primarily in low-SES adolescents.
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Introduction: Colorectal cancer (CRC) is a heterogeneous disease caused by molecular changes, as driver mutations, gene methylations, etc., and influenced by tumor microenvironment (TME) pervaded with immune cells with both pro- and anti-tumor effects. The studying of interactions between the immune system (IS) and the TME is important for developing effective immunotherapeutic strategies for CRC.

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Here, we present newly derived in vitro model for modeling Duchenne muscular dystrophy. Our new cell line was derived by reprogramming of peripheral blood mononuclear cells (isolated from blood from pediatric patient) with Sendai virus encoding Yamanaka factors. Derived iPS cells are capable to differentiate in vitro into three germ layers as verified by immunocytochemistry.

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Introduction: Colorectal cancer (CRC) is one of the most common types of cancer worldwide. The carcinogenesis of CRC is indeed complex, and there are many different mechanisms and pathways that contribute to the development of malignancy and the progression from primary to metastatic tumors. The OCT4A, encoded by the gene, is a transcription factor responsible for the phenotype of stem cells, maintaining pluripotency and regulation of differentiation.

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Tungsten is a commonly used material at many heavy-ion beam facilities, and it often becomes activated due to interactions with a beam. Many of the activation products are useful in basic and applied sciences if they can be recovered efficiently. In order to develop the radiochemistry for harvesting group (IV) elements from irradiated tungsten, a heavy-ion beam containing Zr was embedded into a stack of tungsten foils at the National Superconducting Cyclotron Laboratory and a separation methodology was devised to recover the Zr.

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The study demonstrates the astroglial and gliovascular structures of the area postrema (AP) in three planes, and compares them to our former findings on the subfornical organ (SFO) and the organon vasculosum laminae terminalis (OVLT). The results revealed long glial processes interconnecting the AP with deeper areas of brain stem. The laminin and β-dystroglycan immunolabeling altered along the vessels indicating alterations of the gliovascular relations.

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During routine operation of the Facility for Rare Isotope Beams (FRIB), radionuclides will accumulate in both the aqueous beam dump and along the beamline in the process of beam purification. These byproduct radionuclides, many of which are far from stability, can be collected and purified for use in other scientific applications in a process called isotope harvesting. In this work, the viability of Zr harvesting from solid components was investigated at the National Superconducting Cyclotron Laboratory.

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(1) The World Health Organization (WHO)-5 Well-Being Index has been used in many epidemiological studies to assess adolescent mental well-being. However, cross-country comparisons of this instrument among adolescents are scarce and, so far, no good-fitting, common invariant measurement model across countries has been reported. The present study aims to evaluate and establish a version of the WHO-5 Well-Being Index that allows for a valid cross-country comparison of adolescent self-reported mental well-being.

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We present here a new iPS cell line for modeling sporadic form of ALS. Cell line was generated by reprogramming skin fibroblasts isolated with explant culture technology from skin biopsy, donated by ALS patient. For reprogramming, polycistronic self-replicating RNA vector was used and derived iPS cells were characterized by immunocytochemistry and FACS (pluripotent factors expression), karyotyping, STR fingerprinting analysis and in vitro differentiation assay.

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  • - The incidence of colorectal cancer (CRC) has increased significantly over the last decade, leading to a focus on understanding the disease's pathology and treatment resistance, particularly linked to cancer stem cells.
  • - A study in Slovakia aimed to examine specific stem cell markers (CD133, CD166, and Lgr5) in CRC tumors using flow cytometry, as well as analyze DNA methylation of CRC biomarkers in patient samples.
  • - Results indicated that metastatic tumors had higher CD133 cell levels than primary tumors, with a correlation to CRC aggressiveness and lymphatic invasion, highlighting CD133's potential role as a key marker in CRC pathology.
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Purpose: To assess country-level trends in the prevalence of daily consumption of sugary (2002-2018) and diet (2006-2018) soft drinks among European adolescents, overall and by family material affluence.

Methods: We used 2002, 2006, 2010, 2014 and 2018 data from the 'Health Behaviour in School-aged Children' survey. Nationally representative samples of adolescents completed a standardised questionnaire at school, including a short food frequency questionnaire (n = 530,976 and 21 countries for sugary soft drinks; n = 61,487 and 4 countries for diet soft drinks).

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A flowing-water target was irradiated with a 150 MeV/nucleon beam of Kr at the National Superconducting Cyclotron Laboratory to produce Kr and Kr. Real-time gamma-imaging measurements revealed the mass transport of the krypton radioisotopes through the target-water processing, or "isotope harvesting", system. The production rates were determined to be 2.

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  • - The study examined trends in adolescent mental wellbeing among Czech teens from 2002 to 2018, focusing on psychological complaints, life satisfaction, and somatic symptoms, using data from nearly 29,400 adolescents.
  • - Results indicated a noticeable rise in psychological complaints, a temporary decrease in life satisfaction until 2014, and fluctuating somatic symptoms, with girls, older adolescents, and those from lower socioeconomic backgrounds reporting poorer mental health.
  • - Despite observed increases in psychological issues and a growing gender gap in mental wellbeing, overall changes over time were minimal, suggesting the need for public health action in the Czech Republic.
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Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive type of malignancy with one of the worst prognoses amongst any type of cancer. Surgery is applicable only to the limited number of patients with locally resectable tumors and currently represents the only curative treatment option. Treatment with chemotherapy and radiotherapy can only extend patient survival.

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Appendiceal mucocele is a rare disease with an incidence of 0.07-0.63% of all appendectomies and was first described in 1842 by Carl von Rokitansky.

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A sample of Ca produced through isotope harvesting at the National Superconducting Cyclotron Laboratory was used to measure branching ratios of 7.17(5)%, 7.11(5)%, and 75.

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Rete testis invasion (RTI) is an unfavourable prognostic factor for the risk of relapse in clinical stage I (CS I) seminoma patients. Notably, no evidence of difference in the proteome of RTI-positive vs. -negative CS I seminomas has been reported yet.

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  • The study focuses on developing a next-generation sequencing (NGS) assay to identify both common and rare biomarkers relevant for therapy in colorectal cancer (CRC).
  • A multigene panel targeting 50 cancer-critical genes was applied to 86 CRC patients, revealing 163 pathogenic variants, particularly in key genes like TP53, KRAS, APC, and PIK3CA.
  • The findings allow for the stratification of patients based on specific mutations, enabling potential advancements in treatment effectiveness and retrospective studies on anti-EGFR therapies.
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Background: This study examined the effects of the coronavirus disease 2019 pandemic on nursing students. The Interpretive Phenomenological Analysis qualitative approach was used to analyze alternative assignments added during the Spring and Summer 2020 courses. Participants included nursing students at the baccalaureate, master, and doctoral levels.

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The present paper is the first comparative study on the astroglia of several actinopterygian species at different phylogenetical positions, teleosts (16 species), and non-teleosts (3 species), based on the immunohistochemical staining of GFAP (glial fibrillary acidic protein), the characteristic cytoskeletal intermediary filament protein, and immunohistochemical marker of astroglia. The question was, how the astroglial architecture reflexes the high diversity of this largest vertebrate group. The actinopterygian telencephalon has a so-called 'eversive' development in contrast to the 'evagination' found in sarcopterygii (including tetrapods).

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Background: Adolescent alcohol consumption is a major public health concern that should be continuously monitored. This study aims (i) to analyze country-level trends in weekly alcohol consumption, drunkenness and early initiation in alcohol consumption and drunkenness among 15-year-old adolescents from 39 countries and regions across Europe and North America between 2002 and 2014 and (ii) to examine the geographical patterns in adolescent alcohol-related behaviours.

Methods: The sample was composed of 250 161 adolescents aged 15 from 39 countries and regions from Europe and North America.

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  • High intake of sugar-sweetened beverages (SSBs) negatively affects the health of youth, but there has been little monitoring of their consumption in Eastern Europe.
  • This study analyzed data from 14 Eastern European countries from 2002 to 2018 to track trends in adolescent daily SSB consumption, focusing on variations based on family affluence.
  • Results showed a decline in daily SSB intake in most countries, with the most affluent adolescents reducing their consumption more significantly than their less affluent peers, leading to shifts in consumption patterns among different socioeconomic groups.
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The Guilt and Shame Experience Scale (GSES) is a new, brief self-report instrument for assessing experiences of guilt and shame. It includes two distinct scales: feelings of shame and feelings of guilt. The present report focuses on results from a final validation study using a nationally representative sample of 7899 adolescents (M age = 14.

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Microsatellite instability (MSI) is present in 15-20% of primary colorectal cancers. MSI status is assessed to detect Lynch syndrome, guide adjuvant chemotherapy, determine prognosis, and use as a companion test for checkpoint blockade inhibitors. Traditionally, MSI status is determined by immunohistochemistry or molecular methods.

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