461,897 results match your criteria: "Switzerland; University of Lausanne[Affiliation]"

Neutrophil Extracellular Traps (NETs) as a Potential Target for Anti-Aging: Role of Therapeutic Apheresis.

Horm Metab Res

January 2025

Department of Intensive Care Medicine, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom of Great Britain and Northern Ireland.

Neutrophil extracellular traps (NETs) are large structures composed of chromatin, histones and granule-derived proteins released extracellularly by neutrophils. They are generally considered to be a part of the antimicrobial defense strategy, preventing the dissemination of pathogens. However, overproduction of NETs or their ineffective clearance can drive various pathologies, many of which are associated with advanced age and involve uncontrolled inflammation, oxidative, cardiovascular and neurodegenerative stress as underlying mechanisms.

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At the crossroads of biology and electronics.

Curr Opin Biotechnol

January 2025

ETH Zurich, Department of Biosystems Science and Engineering, Schanzenstrasse 48, CH-4056 Basel, Switzerland; University of Basel, Faculty of Science, Schanzenstrasse 48, CH-4056 Basel, Switzerland. Electronic address:

All cells are innately equipped with systems to detect and respond to electrical inputs in the form of reactive oxygen species, redox signaling, or membrane depolarization through ion exchange. Electrogenetics aims to leverage these cellular systems to create interfaces between biology and electronics, in order to achieve levels of precision in spatiotemporal control of gene and protein expression that are not possible with chemo-, opto-, or thermogenetics. In this review, we discuss the impact, challenges, and prospects of electrogenetics in the context of recent cutting-edge applications.

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Cross-sectional study on the impact of adverse childhood experiences on psychological distress in patients with an implantable cardioverter-defibrillator.

J Psychosom Res

January 2025

Department of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland. Electronic address:

Objective: Previous studies implied detrimental effects of adverse childhood experiences (ACE) on cardiovascular disease and mental health. Still, data on the influence of ACE on psychological distress in patients with an implantable cardioverter-defibrillator (ICD) are lacking.

Methods: We prospectively recruited 423 patients with an ICD.

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Clavicle height asymmetry: A common problem for planning reduction mammoplasties - A correlational study.

J Plast Reconstr Aesthet Surg

December 2024

Department of Hand and Plastic Surgery, Thurgau Hospital Group, Frauenfeld, Switzerland; Division of Hand, Plastic and Aesthetic Surgery University Hospital, LMU Munich, Germany.

The distance between the mid-clavicle and nipple (MCN) is crucial in planning reduction mammoplasties. MCN has been shown to be superior in achieving nipple-areola complex symmetry. However, there is great variability in clavicle anatomy.

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Cystic and alveolar echinococcosis are severe zoonotic diseases characterized by long asymptomatic periods lasting months or years. Viable Echinococcus spp. eggs released into the environment through the feces of canids can infect humans through accidental ingestion via hand-to-mouth contact or consumption of contaminated food or water.

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Experiences of nursing staff in Swiss-German nursing homes in with constipation management: A qualitative-descriptive study.

Geriatr Nurs

January 2025

ZHAW - Zurich University of Applied Sciences, ZHAW School of Health Sciences, Institute of Nursing, Winterthur, Switzerland; UMIT TIROL Private University of Health Sciences, Medical Informatics, and Technology, Department of Nursing Science and Gerontology, Institute of Nursing, Hall in Tyrol, Austria; Victoria University of Wellington - Te Herenga Waka, Wellington Faculty of Health, School of Nursing, Midwifery and Health Practice, Aotearoa, Wellington, New Zealand; School of Public Health and Social Work, Faculty of Health at Queensland University of Technology (QUT), Brisbane, Australia.

Despite existing guidelines for constipation management, constipation remains a prevalent issue among older individuals in long-term care facilities. The aim of this qualitative study was to provide an overview of nursing constipation management and the associated challenges in Swiss-German nursing homes. From September to December 2022, 51 nursing staff from 20 nursing homes were surveyed online, using literature-based open questions.

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Coupling tree-ring and geomorphic analyses to reconstruct the 1950s massive Glacier Lake Outburst Flood at Grosse Glacier, Chilean Patagonia.

Sci Total Environ

January 2025

Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland; dendrolab.ch, Department of Earth Sciences, University of Geneva, Geneva, Switzerland; Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Switzerland.

Over recent decades, global warming has led to sustained glacier mass reduction and the formation of glacier lakes dammed by potentially unstable moraines. When such dams break, devastating Glacial Lake Outburst Floods (GLOFs) can occur in high mountain environments with catastrophic effects on populations and infrastructure. To understand the occurrence of GLOFs in space and time, build frequency-magnitude relationships for disaster risk reduction or identify regional links between GLOF frequency and climate warming, comprehensive databases are critically needed.

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Rationale: Early detection, standardized therapy, adequate infrastructure and strategies for quality improvement should constitute essential components of every hospital's sepsis plan.

Objectives: To investigate the extent to which recommendations from the sepsis guidelines are implemented and the availability of infrastructure for the care of patients with sepsis in acute hospitals.

Methods: A multidisciplinary cross-sectional questionnaire was used to investigate sepsis care in hospitals.

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This study aimed to develop a novel reconstruction method for segmental mandibulectomy. In the authors' opinion, reconstruction of the anterior border of the mandibular ramus using a double-arm vascularized fibular flap is important to prevent deformity due to buccal depression and the accumulation of food debris, thereby eliminating masticatory dead space that cannot be filled with prostheses such as implants or dentures. Using conventional reconstruction plates, the reconstructed bone positioned at the anterior border of the mandibular ramus required either fixing with only 1 screw or using 2 plates for stable fixation, making it difficult to position the plates stably.

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Plant chloroplasts store starch during the day, which acts as a source of carbohydrates and energy at night. Starch granule initiation relies on the elongation of malto-oligosaccharide primers. In Arabidopsis thaliana, PROTEIN TARGETING TO STARCH 2 (PTST2) and STARCH SYNTHASE 4 (SS4) are essential for the selective binding and elongation of malto-oligosaccharide primers, respectively, and very few granules are initiated in their absence.

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Insights into Heterocycle Biosynthesis in the Cytotoxic Polyketide Alkaloid Janustatin A from a Plant-Associated Bacterium.

Biochemistry

January 2025

Institute of Microbiology, Eidgenössische Technische Hochschule (ETH) Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland.

Janustatin A is a potently cytotoxic polyketide alkaloid produced at trace amounts by the marine bacterial plant symbiont . Its biosynthetic terminus features an unusual pyridine-containing bicyclic system of unclear origin, in which polyketide and amino acid extension units appear reversed compared to the order of enzymatic modules in the polyketide synthase (PKS)-nonribosomal peptide synthetase (NRPS) assembly line. To elucidate unknown steps in heterocycle formation, we first established robust genome engineering tools in .

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The current understanding of primate natural action organization derives from laboratory experiments in restrained contexts (RCs) under the assumption that this knowledge generalizes to freely moving contexts (FMCs). In this work, we developed a neurobehavioral platform to enable wireless recording of the same premotor neurons in both RCs and FMCs. Neurons often encoded the same hand and mouth actions differently in RCs and FMCs.

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Photonic axion insulator.

Science

January 2025

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore.

Axions, hypothetical elementary particles that remain undetectable in nature, can arise as quasiparticles in three-dimensional crystals known as axion insulators. Previous implementations of axion insulators have largely been limited to two-dimensional systems, leaving their topological properties in three dimensions unexplored in experiment. Here, we realize an axion insulator in a three-dimensional photonic crystal and probe its topological properties.

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Background: Large, international cohort studies generate high-level evidence, but are resource intense. In end-of-life care such studies are scarce. Hence, planning for future studies in terms of data on screening, recruitment, retention and survival remains a challenge.

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Introduction: 22q11 deletion syndrome (22q11DS) results from a microdeletion on chromosome 22 and is the most common microdeletion disorder in humans, affecting 1 in 2148 live births. Clinical manifestations vary widely among individuals and across different life stages. Effective management requires the involvement of a specialized multidisciplinary team.

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Background: Transcatheter Aortic Valve Implantation (TAVI) procedures are rapidly expanding, necessitating a more extensive stratification of patients with aortic stenosis. Especially in the high-risk group, some patients fail to derive optimal or any benefits from TAVI, leading to the risk of futile interventions. Despite consensus among several experts regarding the importance of recognizing and anticipating such interventions, the definition, and predictive criteria for futility in TAVI remain ambiguous.

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Despite the wide use of zebra finches as an animal model to study vocal learning and production, little is known about impacts on their welfare caused by routine experimental manipulations such as changing their social context. Here we conduct a post-hoc analysis of singing rate, an indicator of positive welfare, to gain insights into stress caused by social isolation, a common experimental manipulation. We find that isolation in an unfamiliar environment reduces singing rate for several days, indicating the presence of an acute stressor.

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The Moderating Role of Context Processing in the Intergenerational Transmission of Posttraumatic Stress.

J Trauma Dissociation

January 2025

Division of Child and Adolescent Psychiatry, Department of Psychiatry, Lausanne University Hospital (CHUV), Lausanne, Switzerland.

This pilot study aimed to understand the moderating role of context processing (i.e. encoding and memorizing) when mothers are confronted with threatening stimuli and undergo physiologic monitoring in order to understand a possible mechanism favoring intergenerational transmission of posttraumatic stress.

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Multiplicity of type 6 secretion system toxins limits the evolution of resistance.

Proc Natl Acad Sci U S A

January 2025

Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom.

The bacterial type 6 secretion system (T6SS) is a toxin-injecting nanoweapon that mediates competition in plant- and animal-associated microbial communities. Bacteria can evolve de novo resistance against T6SS attacks, but resistance is far from universal in natural communities, suggesting key features of T6SS weaponry may act to limit its evolution. Here, we combine ecoevolutionary modeling and experimental evolution to examine how toxin type and multiplicity in attackers shape resistance evolution in susceptible competitors.

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The role of lin-12 notch in C. elegans anchor cell proliferation.

Biol Open

December 2024

Department of Dermatology, University of Zurich, University Hospital Zurich, Schlieren CH-8952, Switzerland.

The gonadal anchor cell (AC) is an essential organizer for the development of the egg-laying organ in the C. elegans hermaphrodite. Recent work has investigated the mechanisms that control the quiescent state the AC adopts while fulfilling its functions.

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When rendering the visual scene for near-eye head-mounted displays, accurate knowledge of the geometry of the displays, scene objects, and eyes is required for the correct generation of the binocular images. Despite possible design and calibration efforts, these quantities are subject to positional and measurement errors, resulting in some misalignment of the images projected to each eye. Previous research investigated the effects in virtual reality (VR) setups that triggered such symptoms as eye strain and nausea.

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Purpose: The aim of this review is to give an overview of the results of prospective and retrospective studies using allogenic reconstruction and postmastectomy radiotherapy (PMRT) in breast cancer and to make recommendations regarding this interdisciplinary approach.

Materials And Methods: A PubMed search was conducted to extract relevant articles from 2000 to 2024. The search was performed using the following terms: (breast cancer) AND (reconstruction OR implant OR expander) AND (radiotherapy OR radiation).

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Objective: Brief hospital course (BHC) summaries are clinical documents that summarize a patient's hospital stay. While large language models (LLMs) depict remarkable capabilities in automating real-world tasks, their capabilities for healthcare applications such as synthesizing BHCs from clinical notes have not been shown. We introduce a novel preprocessed dataset, the MIMIC-IV-BHC, encapsulating clinical note and BHC pairs to adapt LLMs for BHC synthesis.

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