7,723 results match your criteria: ""Christian-Albrechts" University[Affiliation]"
Nano Lett
January 2025
Institute of Experimental and Applied Physics, Kiel University, Leibnizstr. 11-19, Kiel 24098, Germany.
Topological plasmonics combines principles of topology and plasmonics to provide new methods for controlling light, analogous to topological edge states in photonics. However, designing such topological states remains challenging due to the complexity of the high-dimensional design space. We present a novel method that uses supervised, physics-informed deep learning and surrogate modeling to design topological devices for desired wavelengths.
View Article and Find Full Text PDFFront Immunol
January 2025
Institute for Infection Research and Vaccine Development (IIRVD), Center for Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Introduction: Vaccine platforms such as viral vectors and mRNA can accelerate vaccine development in response to newly emerging pathogens, as demonstrated during the COVID-19 pandemic. However, the differential effects of platform and antigen insert on vaccine immunogenicity remain incompletely understood. Innate immune responses induced by viral vector vaccines are suggested to have an adjuvant effect for subsequent adaptive immunity.
View Article and Find Full Text PDFJAMA Oncol
January 2025
Department of Paediatric Haematology, Oncology and Immunodeficiency, University Hospital Justus-Liebig University Giessen, Giessen, Germany.
Importance: The current standard-of-care salvage therapy in relapsed/refractory classic Hodgkin lymphoma (cHL) includes consolidation high-dose chemotherapy (HDCT)/autologous stem cell transplant (aSCT).
Objective: To investigate whether presalvage risk factors and fludeoxyglucose-18 (FDG) positron emission tomography (PET) response to reinduction chemotherapy can guide escalation or de-escalation between HDCT/aSCT or transplant-free consolidation with radiotherapy to minimize toxic effects while maintaining high cure rates.
Design, Setting, And Participants: EuroNet-PHL-R1 was a nonrandomized clinical trial that enrolled patients younger than 18 years with first relapsed/refractory cHL across 68 sites in 13 countries in Europe between January 2007 and January 2013.
Phys Chem Chem Phys
January 2025
Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India.
Graphene and its derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO), have propelled advancements in biosensor research owing to their unique physicochemical and electronic characteristics. To ensure their safe and effective utilization in biological environments, it is crucial to understand how these graphene-based nanomaterials (GNMs) interact with a biological milieu. The present study depicts GNM-induced structural changes in a self-assembled phospholipid monolayer formed at an air-water interface that can be considered to represent one of the leaflets of a cellular membrane.
View Article and Find Full Text PDFHeart Rhythm
December 2024
Medical Faculty, Christian-Albrechts-University, Kiel, Germany; Life Sciences, University of Applied Sciences, Bremerhaven, Germany. Electronic address:
Left bundle branch block (LBBB) causes immediate electrical and mechanical dyssynchrony of the left ventricle (LV) and gradual structural damages in the Purkinje cells and myocardium. Mechanical dyssynchrony reduces the LV ejection fraction (EF) instantly, but only to ≈55% in an otherwise normal heart. Because of the heart's in-built functional redundancy, a patient with LBBB does not always notice the heart's reduced efficiency straightaway.
View Article and Find Full Text PDFJ Craniomaxillofac Surg
December 2024
Department of Craniomaxillofacial Surgery, University Hospital Schleswig-Holstein Campus Kiel, 24105, Kiel, Germany. Electronic address:
The state-of-the-art approach to open reduction and fixation (ORIF) of zygoma fracture fragments is based on manual skills. Achieving high accuracy can be challenging. Our feasibility study on deceased body donors with artificial zygomatic fractures investigated whether virtual repositioning of the fractures and the use of customised 3D-printed titanium osteosynthesis plates was similar in accuracy to the conventional manual procedure, and whether the method was applicable in a clinical setting.
View Article and Find Full Text PDFKnee Surg Sports Traumatol Arthrosc
December 2024
Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Münster, Germany.
Purpose: To biomechanically evaluate a flat posterior cruciate ligament (PCL) reconstruction utilizing rectangular femoral bone tunnels.
Methods: Eight fresh-frozen human knee specimens were tested in a six-degrees-of-freedom robotic test setup. In each testing step, a force-controlled test protocol was performed, including 89 N posterior tibial translation (PTT) in neutral, internal and external rotation, from 0 to 90° of flexion.
Sci Rep
December 2024
Chair of Applied Electrodynamics and Plasma Technology, Ruhr University Bochum, Universitätsstraße 150, 44780, Bochum, Germany.
Nonlinearity is a crucial characteristic for implementing hardware security primitives or neuromorphic computing systems. The main feature of all memristive devices is this nonlinear behavior observed in their current-voltage characteristics. To comprehend the nonlinear behavior, we have to understand the coexistence of resistive, capacitive, and inertia (virtual inductive) effects in these devices.
View Article and Find Full Text PDFJ Infect
December 2024
German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Borstel, Germany; Division of Clinical Infectious Diseases, Research Center Borstel, Parkallee 1-40, 23845 Borstel, Germany.
Objectives: Early detection of treatment failure is essential to improve the management of drug-resistant tuberculosis (DR-TB). We evaluated the molecular bacterial load assay (MBLA) in comparison to standard diagnostic tests for monitoring therapy of patients affected by drug-resistant TB.
Methods: The performance of MBLA in tracking treatment response in a prospective cohort of patients with pulmonary MDR/RR- and pre-XDR/XDR-TB was compared with mycobacterial culture, mycobacterial DNA detection using GeneXpert (Xpert) and microscopy detection of sputum acid-fast-bacilli.
Alzheimers Dement
December 2024
Djavad Mowafaghian Centre for Brain Health, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Sci Rep
December 2024
School of Biological Sciences, University of Utah, Salt Lake City, Utah, USA.
Voltage-gated potassium channels (VGKCs) comprise the largest and most complex families of ion channels. Approximately 70 genes encode VGKC alpha subunits, which assemble into functional tetrameric channel complexes. These subunits can also combine to form heteromeric channels, significantly expanding the potential diversity of VGKCs.
View Article and Find Full Text PDFFront Immunol
December 2024
Institute of Clinical Molecular Biology, University Hospital Schleswig-Holstein (UKSH) and Christian-Albrechts-University of Kiel, Kiel, Germany.
Kell is one of the most complex blood group systems, with a highly polymorphic genetic background. Extensive allelic variations in the gene affect the encoded erythrocyte surface protein Kell. Genetic variants causing aberrant splicing, premature termination of protein translation, or specific amino acid exchanges lead to a variety of different phenotypes with altered Kell expression levels or changes in the antigenic properties of the Kell protein.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
The photoswitching of supramolecular host-guest complexes is the basis of numerous molecularly controlled macroscopic functions, such as sol-gel transition, photopharmacology, the active transport of ions or molecules, light-powered molecular machines, and much more. The most commonly used systems employ photoactive azobenzene guests and synthetic host molecules, which bind as the stable isomers and dissociate as the forms after exposure to UV light. We present a new, extraordinarily efficient cucurbit[7]uril (CB7)/diazocine host/guest complex with inverted stability that self-assembles under UV irradiation and dissociates in the dark.
View Article and Find Full Text PDFBiomed Mater
December 2024
G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis; Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Engesserstr. 4, Freiburg im Breisgau, 79108, GERMANY.
Cell micro-patterning controls cell fate and function and has potential for generating therapeutically usable mesenchymal stromal cell (MSC) populations with precise functions. However, to date, the micro-patterning of human cells in a translational context has been impossible because only ruminant media supplements, e.g.
View Article and Find Full Text PDFClin Res Cardiol
December 2024
Cardiology Department, Heart Center Segeberger Kliniken GmbH, Am Kurpak 1, 23795, Bad Segeberg, Germany.
Background: Coronary physiology to guide multi-vessel coronary intervention is associated with better outcome. In the presence of a coronary chronic total occlusion (CTO), hemodynamic evaluation of intermediate lesions in the donor coronary artery supplying a CTO territory still has limitations. We aim to evaluate implementing quantitative flow ratio (QFR) in assessing angiographically intermediate lesions of the main donor coronary artery supplying a CTO territory.
View Article and Find Full Text PDFCell Rep
December 2024
Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstrasse 40, 24118 Kiel, Germany. Electronic address:
Genetic variants in TMEM106B, coding for a transmembrane protein of unknown function, have been identified as critical genetic modulators in various neurodegenerative diseases with a strong effect in patients with frontotemporal degeneration. The luminal domain of TMEM106B can form amyloid-like fibrils upon proteolysis. Whether this luminal domain is generated under physiological conditions and which protease(s) are involved in shedding remain unclear.
View Article and Find Full Text PDFEur J Psychotraumatol
December 2024
Department of Psychiatry and Psychotherapy, Translational Psychiatry Unit, University of Lübeck, Lübeck, Germany.
Sci Total Environ
January 2025
Wageningen University & Research, Animal Production Systems Group, 6706 WD Wageningen, the Netherlands; Christian Albrechts University, Grass and Forage Science/Organic Agriculture, D-24118 Kiel, Germany.
The integration between crop and livestock production systems (ICLS) at regional level is seen as a pathway for more sustainable food production. The objective was to assess the effects on farm structure, economic performance and environmental impact of an ICLS with varying constraints on agricultural emissions, changes in land use and a lower external input use as means to achieve environmental targets. A linear optimization model was used for economic optimization of ICLS under different scenarios for the case of crop and dairy production systems on sandy soils in the Netherlands.
View Article and Find Full Text PDFJAMA Netw Open
December 2024
Department of Medicine, Pulmonary, Critical Care and Sleep Medicine, Philipps-University of Marburg, Member of the German Center for Lung Research, Marburg, Germany.
Importance: Previous exacerbations of chronic obstructive pulmonary disease (ECOPD) are associated with future events. For more than a decade, patients at high risk have been defined as individuals with a history of 2 or more moderate ECOPD, 1 or more severe ECOPD, or both within 12 months, and treatments have been allocated accordingly, but these cutoffs lack validation.
Objectives: To validate ECOPD history categories by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) and explore alternative cutoffs to estimate moderate and severe ECOPD and all-cause mortality in COPD.
New Phytol
December 2024
Environmental Genomics, Christian-Albrechts University of Kiel, Am Botanischen Garten 1-11, 24118, Kiel, Germany.
The barley disease Septoria Speckled Leaf Blotch, caused by the fungus Zymoseptoria passerinii, last appeared in North America in the early 2000s. Although rare in crops, field sampling of wild grasses in the Middle East revealed the disease persistence in wild barley. Identification of Z.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Molecular Genetics Group, Institute of Animal Breeding and Husbandry, Christian-Albrechts-University Kiel, 24118 Kiel, Germany.
Sperm mitochondria are vital organelles for energy production and pre- and post-fertilization sperm functions. The potential influence of the age of the bull and season on the sperm-borne mitochondrial copy number and the transcription activity has not yet been investigated. Therefore, the expression patterns of all protein-coding mitochondrial genes were identified throughout the year along with mitochondrial copy numbers in young and old bulls' spermatozoa.
View Article and Find Full Text PDFPlants (Basel)
December 2024
Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118 Kiel, Germany.
The rich and diverse flora of Armenia has been used for medicinal purposes for at least 3000 years. The relevant literature in Armenian, English, and Russian revealed a vast array of used medicinal plants, some of them unique to the Caucasus region. The usage of medicinal plants confirms the position of Armenia as a country at the crossroads of Asia and Europe because of its traditional usage of medicinal plants from both continents.
View Article and Find Full Text PDFJ Evid Based Med
December 2024
Medical Faculty, Christian-Albrechts-University, Kiel, Germany.
Sci Rep
December 2024
Institute of Life Sciences, Hochschule Bremerhaven, An der Karlstadt 8, 27568, Bremerhaven, Germany.
The placement of cardiovascular implantable electronic devices (CIED) comes with a risk of adverse events (AE). AE comprise complications associated with the procedure and the device. CIED infection is a severe AE.
View Article and Find Full Text PDFJ Clin Invest
December 2024
The Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, Massachusetts, USA.
The trafficking dynamics of uromodulin (UMOD), the most abundant protein in human urine, play a critical role in the pathogenesis of kidney disease. Monoallelic mutations in the UMOD gene cause autosomal dominant tubulointerstitial kidney disease (ADTKD-UMOD), an incurable genetic disorder that leads to kidney failure. The disease is caused by the intracellular entrapment of mutant UMOD in kidney epithelial cells, but the precise mechanisms mediating disrupted UMOD trafficking remain elusive.
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