373 results match your criteria: "University of Zurich and University Hospital[Affiliation]"

Objective: This scoping review will explore the evidence on factors influencing the decisions to use antibiotic-sparing treatments in women with uncomplicated urinary tract infection.

Introduction: Overuse and misuse of antibiotics are the main drivers of antimicrobial resistance. Antibiotic-sparing treatments, such as symptomatic treatment with analgesics and delayed prescriptions, have considerable potential to reduce antibiotic consumption, but the majority of patients still receive antibiotics without delay.

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Introduction: -rearrangements define a subclass of acute leukemias characterized by a distinct gene expression signature linked to the dysfunctional oncogenic fusion proteins arising from various chromosomal translocations involving the (also known as ) gene. Research on the disease pathomechanism in -rearranged acute leukemias has mainly focused on the upregulation of the stemness-related genes of the -family and their co-factor .

Results: Here we report the and fusion gene-dependent downregulation of , a TGF-β signaling axis transcription factor.

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Objectives: Proton pump inhibitors (PPIs) are widely prescribed medications and commonly used for the treatment of gastric acid-related disorders. Nevertheless, PPIs are often overused leading to potential adverse effects and unnecessary healthcare costs. Deprescribing strategies have emerged to safely reduce or substitute inappropriate PPIs and optimise patient care in an evidence-based manner.

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Background: Pleural mesothelioma is mainly caused by (occupational) asbestos exposure. Since 1990, the import and use of asbestos is prohibited in Switzerland. However, due to the long latency time between exposure and the development of disease, incidence in Switzerland was expected to further increase for years after the ban.

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DNA is subject to continual damage, leaving each cell with thousands of individual DNA lesions at any given moment. The efficiency of DNA repair means that most known classes of lesion have a half-life of minutes to hours, but the extent to which DNA damage can persist for longer durations remains unknown. Here, using high-resolution phylogenetic trees from 89 donors, we identified mutations arising from 818 DNA lesions that persisted across multiple cell cycles in normal human stem cells from blood, liver and bronchial epithelium.

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Introduction: Improving the quality of teaching placements in family medicine practice (FMP) could help to address the shortage of primary care physicians. This study aims to investigate students' evaluations of first-exposure FMP placements, to identify clusters of FMPs that might need to improve their placement quality, and to analyze students' perceptions of the FMP as a learning environment.

Methods: The design was a cross-sectional survey study, including all fourth-year undergraduate medical students at the University of Zurich, Switzerland, who completed a mandatory placement in FMP during 2019-2022.

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Background: Recently, the importance of social networks and other contextual factors in shaping health literacy of adolescents has gained recognition. However, research often simply refers to context without explicitly describing it. In this qualitative study, we aimed to explore how adolescents activate their (social) resources to develop and practice health literacy within a Swiss cantonal school health service program and in their everyday lives.

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Integrating environmental outcomes in randomised clinical trials: a call to action.

Lancet

December 2024

Copenhagen Trial Unit, Centre for Clinical Intervention Research, Copenhagen University Hospital Rigshospitalet, Tagensvej 22, DK-2200 Copenhagen, Denmark; Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.

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Background: Compensatory movements frequently emerge in the process of motor recovery after a stroke. Given their potential for unfavorable long-term effects, it is crucial to assess and document compensatory movements throughout rehabilitation. However, clinically applicable assessment tools are currently limited.

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Hydration alters viscosity of nasal secretions in postnasal drip.

Rhinology

December 2024

Department of Otorhinolaryngology Head and Neck Surgery, University of Zurich and University Hospital Zurich, Zurich, Switzerland.

In our recent study, increased viscosity, delayed mucociliary clearance as well as hyposensitivity/dysesthesia of the nasopharynx seemed to play a relevant role in the pathophysiology of postnasal drip (PND) (1). Earlier concepts of PND, regarding an increased volume of secretions and atopy, do not seem to hold true since our latest analyses showed no significant difference between cases and controls (1). However, to this day its therapy is debated and the evidence for an effective treatment of PND is lacking so far.

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Background: Iron deficiency anemia in the perioperative setting is treated predominantly with intravenous iron formulation, of which ferric carboxymaltose may induce hypophosphatemia by modulating fibroblast growth factor 23.

Methods: In this single-center, prospective, randomized, double-blind trial, we consented 92 adult patients scheduled for elective major abdominal or thoracic surgery. These patients either had isolated iron deficiency (plasma ferritin <100 ng/mL or transferrin saturation < 20 %) or iron deficiency anemia (hemoglobin (Hb) 100-130 g/L with plasma ferritin <100 ng/mL or transferrin saturation < 20 %).

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Firm, yet flexible: a fidelity debate paper with two case examples.

Implement Sci

December 2024

Institute for Implementation Science in Health Care, Universitätstrasse 84, Zurich, 8006, Switzerland.

Article Synopsis
  • - The paper discusses the importance of intervention and implementation fidelity in healthcare research, emphasizing that strict adherence to core components of interventions is crucial for meaningful evaluation of outcomes.
  • - It highlights the need for flexibility in defining fidelity, as varying contexts and implementation strategies require researchers to adapt their approaches while ensuring that fidelity criteria are transparent and context-dependent.
  • - The authors argue that fidelity assessments should consider not just individual behaviors, but also organizational and system factors, further complicating the evaluation process and necessitating a deeper understanding of fidelity concepts.
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Expression of p53 in human adipose tissue correlates positively with FAS and BMI.

Int J Obes (Lond)

December 2024

Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Zurich, Zurich, Switzerland.

Article Synopsis
  • Activation of Fas in adipocytes inhibits the browning process, potentially leading to increased body weight gain in mice, and its expression correlates with higher BMI in humans.
  • The study found that Fas activation decreases energy expenditure through reduced protein levels of p53, a tumor suppressor, in adipocytes.
  • In humans, higher p53 levels in subcutaneous and visceral white adipose tissue were linked to increased BMI, while higher levels in visceral fat were associated with lower insulin sensitivity.
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Large Language Models (LLMs), particularly those similar to ChatGPT, have significantly influenced the field of Natural Language Processing (NLP). While these models excel in general language tasks, their performance in domain-specific downstream tasks such as biomedical and clinical Named Entity Recognition (NER), Relation Extraction (RE), and Medical Natural Language Inference (NLI) is still evolving. In this context, our study investigates the potential of instruction tuning for biomedical language processing, applying this technique to two general LLMs of substantial scale.

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Article Synopsis
  • Allogeneic hematopoietic cell transplantation (HCT) involves replacing a recipient's blood stem cells with those from a donor, and this study analyzed the long-term effects on stem cell populations over 9-31 years post-transplant.
  • Researchers sequenced genomes from nearly 3,000 single-cell-derived blood colonies from ten donor-recipient pairs and found that younger donors contributed significantly more engrafted stem cells compared to older donors, leading to differences in blood cell types produced.
  • The study identified that recipients experienced a decrease in clonal diversity, akin to accelerated aging, due to two types of selection processes: one occurring in the donor before the transplant and another in the recipient's marrow after engraftment, which revealed
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Cardiac diffusion-weighted and tensor imaging: A consensus statement from the special interest group of the Society for Cardiovascular Magnetic Resonance.

J Cardiovasc Magn Reson

October 2024

Martinos Center for Biomedical Imaging and Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Thanks to recent developments in cardiovascular magnetic resonance (CMR), cardiac diffusion-weighted magnetic resonance is fast emerging in a range of clinical applications. Cardiac diffusion-weighted imaging (cDWI) and diffusion tensor imaging (cDTI) now enable investigators and clinicians to assess and quantify the tridimensional microstructure of the heart. Free-contrast DWI is uniquely sensitized to the presence and displacement of water molecules within the myocardial tissue, including the intracellular, extracellular, and intravascular spaces.

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Purpose: Antibiotics are often only available in predefined pack sizes, which may not align with guideline recommendations. This can result in leftover pills, leading to inappropriate self-medication or waste disposal, which can both foster the development of antibiotic resistance. The magnitude of inappropriate pack sizes is largely unknown.

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Background: The COVID-19 vaccination campaign in several European countries involved collaboration between public health and Primary Health Care (PHC).

Objective: To highlight the role of PHC professionals in the COVID-19 vaccination rollout, specifically in terms of vaccine administration, communication and contributing to vaccination population coverage.

Methods: A descriptive retrospective study of the COVID-19 vaccination campaign across 28 European countries was conducted, covering data from December 2020 to November 2021.

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Fabrication of Tuneable Tissue-Mimicking Phantom for Optical Methods.

Adv Exp Med Biol

October 2024

Biomedical Optics Research Laboratory (BORL), Department of Neonatology, University of Zurich and University Hospital Zurich, Zürich, Switzerland.

Article Synopsis
  • Tissue mimicking optical phantoms are essential for testing near-infrared imaging devices, but existing models lack complexity and variability in their properties.
  • The project focused on creating a novel phantom that features dynamic internal shapes and adjustable optical properties, made from silicone and a water-soluble material.
  • The resulting phantom successfully demonstrated accurate imaging and changes in light intensity upon testing with frequency domain near-infrared spectroscopy and time domain optical tomography.
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Article Synopsis
  • The scavenger receptor SR-BI has two variants, both of which help transport HDL and LDL lipoproteins through endothelial cells, but they differ in their cellular behavior and localization.
  • The variant SR-BI is found on the cell surface and associates with clathrin, while the other variant is internalized within endosomes and lysosomes, indicating distinct trafficking routes.
  • Silencing proteins PDZK1 and DOCK4 selectively impacts HDL and LDL uptake, revealing that each SR-BI variant uses different mechanisms for lipoprotein uptake in endothelial cells.
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Background/objectives: We aimed to determine in multiple sclerosis (MS) whether intrathecal immunoglobulin G (IgG) production against measles- (M), rubella- (R), and varicella zoster (Z) viruses, which is called MRZ reaction (MRZR) and considered the most specific soluble biomarker for MS, is associated with demographic and basic cerebrospinal fluid (CSF) parameters reflecting inflammation.

Methods: We analyzed the presence of positive MRZR and associations with demographic and clinical routine CSF parameters in 513 patients with MS and 182 non-MS patients.

Results: Comparing MS patients versus non-MS patients, positive MRZR (38.

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  • The study looked at how much blood patients lost during surgery if they had high levels of certain blood thinners called FXa inhibitors, without reversing their effects before surgery.
  • Researchers collected data from 32 patients who had emergency operations between 2018 and 2022 and found that blood loss was generally low, even with high levels of the medicine in their systems.
  • The results showed that one type of blood thinner caused a bit more blood loss than another, but overall, the method of waiting and monitoring worked fine, and no serious complications happened.
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Article Synopsis
  • The study looked at two types of surgeries for back problems: decompression alone and decompression with fusion.
  • They wanted to see which surgery helped people feel better and if they needed extra care afterward.
  • After 3 years, both surgeries seemed to work about the same, but people with the fusion surgery went to physical therapy more.
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BackgroundIn Europe and other high-income countries, antibiotics are mainly prescribed in the outpatient setting, which consists of primary, specialist and hospital-affiliated outpatient care. Established surveillance platforms report antimicrobial consumption (AMC) on aggregated levels and the contribution of the different prescriber groups is unknown.AimTo determine the contribution of different prescribers to the overall outpatient AMC in Switzerland.

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