1,290,279 results match your criteria: "Faculty of Medicine & University Hospital Bratislava[Affiliation]"

Intercellular mRNA transfer alters the human pluripotent stem cell state.

Proc Natl Acad Sci U S A

January 2025

Human Biology Research Unit, Institute of Integrated Research, Institute of Science Tokyo, Bunkyo-ku, Tokyo 113-8510, Japan.

Intercellular transmission of messenger RNA (mRNA) is being explored in mammalian species using immortal cell lines. Here, we uncover an intercellular mRNA transfer phenomenon that allows for the adaptation and reprogramming of human primed pluripotent stem cells (hPSCs). This process is induced by the direct cell contact-mediated coculture with mouse embryonic stem cells under the condition impermissible for primed hPSC culture.

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Little is known regarding the effects high-intensity training performed in hypoxia on the oxidative stress and antioxidant systems. The aim of this study was to assess the potential effect of 4 weeks of repeated sprint training in hypoxia (RSH) on the redox balance. Forty male well-trained cyclists were matched into two different interventions (RSH,  = 20) or in normoxia, RSN,  = 20) and tested twice (before (Pre-) and after (Post-) a 4-week of training) for performance (repeated sprint ability (RSA) test), oxidative stress, and antioxidant status.

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The synthesis of chiral tetrahydroquinolines (THQs) has garnered significant interest from medicinal chemists due to their frequent presence as pharmacophores in bioactive compounds. While existing synthetic methods have primarily focused on THQs with single or multiple endocyclic chiral centers, the selective construction of THQs with both and cyclic chiral centers remains a significant challenge that requires further development. This study introduces a dynamic kinetic resolution (DKR)-based transfer hydrogenation of racemic 2-substituted quinolines, which yields structurally novel chiral THQs with consecutive and cyclic chiral centers in excellent yields and stereoselectivities (59 examples, with generally >20:1 dr and >90% ee, up to three consecutive stereocenters).

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Precis: Glaucoma surgery impacts corneal graft survival differently by procedure type, with GDDs being most effective at reducing intraocular pressure. However, graft survival rates are comparable across trabeculectomy, CPC, and GDDs. Trabeculectomy improves visual acuity best but often requires additional interventions.

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Nonpharmacological Childhood Obesity Management in Denmark Reduces Steatotic Liver Disease and Obesity.

Child Obes

January 2025

Department of Pediactrics, The Children's Obesity Clinic, Accredited European Centre for Obesity Management, Copenhagen University Hospital Holbæk, Holbæk, Denmark.

Steatotic liver disease (SLD) represents a multisystem disease and is a common complication of childhood obesity. We studied fat content at the abdominal level (liver, subcutaneous, and visceral) and the response to childhood obesity management. In this retrospective longitudinal study, 8-18-year-olds with a body mass index (BMI) z-score above 1.

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Early childhood education and care (ECEC) settings are key for improving health behaviors, including physical activity (PA) and nutrition. In 2017, the province of British Columbia (BC) implemented a provincial-level Active Play policy supported by a capacity-building intervention. Significant improvements in all PA policies and practices and the majority of nutrition policies were observed post-implementation.

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The potential of dietary interventions, particularly the use of the ketogenic diet in patients with Psychogenic Non-Epileptic Seizures (PNES), remains underexplored. This study aimed to assess the feasibility of a 6-week ketogenic diet (Modified Atkins Diet, MAD) intervention in adult patients with PNES and to compare its effects on PNES frequency and other variables against a control healthy diet (CD). A feasibility pilot randomized controlled trial was conducted at a tertiary neurology hospital, enrolling outpatients diagnosed with PNES and assigning them to either MAD or CD.

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Recent evidence highlights that monetary rewards can increase the precision at which healthy human volunteers can detect small changes in the intensity of thermal noxious stimuli, contradicting the idea that rewards exert a broad inhibiting influence on pain perception. This effect was stronger with contingent rewards compared with noncontingent rewards, suggesting a successful learning process. In the present study, we implemented a model comparison approach that aimed to improve our understanding of the mechanisms that underlie thermal noxious discrimination in humans.

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FLT3 is genetically essential for ITD-mutated leukemic stem cells but dispensable for human hematopoietic stem cells.

Blood

January 2025

1Princess Margaret Cancer Centre, University Health Network; Toronto, ON M5G 1L7, Canada 14Department of Molecular Genetics, University of Toronto; Toronto, ON, Canada, Canada.

Leukemic stem cells (LSCs) fuel acute myeloid leukemia (AML) growth and relapse, but therapies tailored towards eradicating LSCs without harming normal hematopoietic stem cells (HSCs) are lacking. FLT3 is considered an important therapeutic target due to frequent mutation in AML and association with relapse. However, there has been limited clinical success with FLT3 drug targeting, suggesting either that FLT3 is not a vulnerability in LSC, or that more potent inhibition is required, a scenario where HSC toxicity could become limiting.

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Sonographer Experiences of Interprofessional Ultrasound Education: A Qualitative Study.

J Contin Educ Health Prof

January 2025

Ms. Cormack: Adjunct Senior Lecturer, Medical Imaging and Radiation Sciences Department, Faculty of Medicine, Nursing and Health Sciences, Monash University, and PhD Candidate, Education Portfolio, Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia.

Introduction: Point-of-care ultrasound (POCUS) technology has evolved rapidly and is being embraced by many health professionals as a valuable clinical tool. Sonographers are now teaching ultrasound skills to other health professionals in the clinical setting, including doctors, nurses, midwives, paramedics, and physiotherapists. The purpose of this study was to understand the breadth of the opportunities, transitions, and challenges experienced by sonographer educators navigating new interprofessional teaching roles.

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Corneal injuries are common in human and veterinary ophthalmology. There are many studies which have investigated the treatment of corneal epithelial defects. This study aimed to investigate the effects of Neutral Protamine Hagedorn (NPH) insulin as an ointment for wound healing in experimental corneal defects.

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Microfluidics Based Particle and Droplet Generation for Gene and Drug Delivery Approaches.

J Biomed Mater Res B Appl Biomater

February 2025

Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, Izmir, Turkey.

Microfluidics-based droplets have emerged as a powerful technology for biomedical research, offering precise control over droplet size and structure, optimal mixing of solutions, and prevention of cross-contamination. It is a major branch of microfluidic technology with applications in diagnostic testing, imaging, separation, and gene amplification. This review discusses the different aspects of microfluidic devices, droplet generation techniques, droplet types, and the production of micro/nano particles, along with their advantages and limitations.

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Objective: Previous studies have hinted at an association between water exposure and the development of ALS. However, proximity measures to these water sources have been limited to questionnaires or large buffers due to a lack of fine geospatial measures. They also do not distinguish the various classes of hydrographic features.

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Objectives: This study evaluated different designs of the conical implant-abutment connection (IAC) and their resistance to microgap formation under oblique loads as specified by the ISO standard for testing dental implants. Also evaluated was the effect of deviations from the ISO specifications on the outcomes.

Methods: Finite element analysis was conducted to compare the microgap formation and stress distribution among three conical IAC designs (A, B, and C) in two loading configurations: one compliant with ISO 14801 and one with a modified load adaptor (non-ISO).

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Team Strategies and Tools to Enhance Performance and Patient Safety (TeamSTEPPS®) is a strategy for improving communication and team climate in hospitals. While it shows promise, it remains an untested tool among health care professional teams. A cross-sectional design with survey methodology was implemented.

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Background: Remote symptom monitoring (RSM) is an evidence-based strategy shown to mitigate postoperative morbidity; however, platform engagement is required to benefit from RSM. Patients who report current smoking are at high risk for postoperative complications, but it is unknown whether smoking status influences engagement with RSM, symptom severity, or unanticipated acute care visits.

Methods: This observational case-control study was conducted in patients undergoing ambulatory oncologic surgery at a large cancer center.

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Culicoides biting midges (Diptera: Ceratopogonidae) have been reported as potential vectors for haemoparasites. Information about host-vector-parasite specificity is required to confirm their status. Here, molecular detection of haemosporidians, Leishmania, trypanosomatids, and filarial nematodes in biting midges was conducted to understand their potential role as vectors, and their host preference was determined.

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Rafiq syndrome, MAN1B1-CDG, was described in 2010 and associated with genetic mutation in MAN1B1 gene in 2011. The disorder follows an autosomal recessive pattern of inheritance and typically presents with specific facial dysmorphism, intellectual disability, developmental delay, obesity, and hypotonia. The syndrome belongs to a group of metabolic disorders called Congenital Glycosylation Disorders (CGD).

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Background/aims: Accurately determining the human epidermal growth factor receptor 2 (HER2) status is crucial in identifying suitable candidates for targeted therapy in gastric cancer, considering the cost and potential side effects of anti-HER2 treatments. This study aimed to assess HER2 overexpression/amplification prevalence in gastric and gastroesophageal cancer patients, its correlation with clinicopathological characteristics, and the consistency of HER2 status between biopsy and radical specimens.

Materials And Methods: We analyzed data from 667 specimens of 600 gastric/gastroesophageal cancer patients at Dokuz Eylül University Faculty of Medicine from 2012 to 2021.

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Gait Video-Based Prediction of Severity of Cerebellar Ataxia Using Deep Neural Networks.

Mov Disord

January 2025

Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.

Background: Pose estimation algorithms applied to two-dimensional videos evaluate gait disturbances; however, a few studies have used this method to evaluate ataxic gait.

Objective: The aim was to assess whether a pose estimation algorithm can predict the severity of cerebellar ataxia by applying it to gait videos.

Methods: We video-recorded 66 patients with degenerative cerebellar diseases performing the timed up-and-go test.

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Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer, with considerable variability in its clinical presentation and prognosis. Recent studies have focused on the relationship between its clinicopathological characteristics and inflammatory biomarkers, particularly the preoperative neutrophil-to-lymphocyte ratio (NLR). Our aim was to investigate the correlation between NLR and the clinicopathological features of PTC.

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Background/aims: Levator ani syndrome (LAS) is a pathology that is both difficult to diagnose and treat. The effectiveness of current treatments, which are mostly administered with special devices in advanced healthcare centers, is controversial. The aim of the study is to investigate the effects of glyceryl trinitrate, which is easily accessible and can be applied by the patient, in the treatment of LAS.

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Background/aims: Endoscopic retrograde cholangiopancreatography (ERCP) is an essential diagnostic and therapeutic method for pancreato-biliary disorders in adults, but its use in pediatric populations remains limited. This study aims to evaluate the indications, technical success, and safety of ERCP in pediatric patients.

Materials And Methods: A retrospective analysis of all ERCP procedures performed on patients under 18 years of age was conducted at 2 tertiary centers in Türkiye (Harran University and Gaziantep University Hospital) during the period between January 2013 and May 2024.

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