6,911 results match your criteria: "Medical Faculty of the University Bonn & University Hospital Bonn[Affiliation]"
PLoS Comput Biol
December 2024
Institute of Software Technology, Department of High-Performance Computing, German Aerospace Center, Cologne, Germany.
In the realm of infectious disease control, accurate modeling of the transmission dynamics is pivotal. As human mobility and commuting patterns are key components of communicable disease spread, we introduce a novel travel time aware metapopulation model. Our model aims to enhance estimations of disease transmission.
View Article and Find Full Text PDFExp Appl Acarol
December 2024
Department for Microbiology, Bundeswehr Central Hospital, Coblenz, Germany.
Contrawise to mosquitoes, there is no country-wide long-term surveillance of ticks in Germany, leading to large gaps in coverage for distribution data. Here we report on results from two consecutive tick studies in northern Rhineland-Palatinate, western Germany, conducted in 2022 and 2023. In 2022, a new focus of the ornate sheep tick Dermacentor marginatus was detected at a military training area east of Coblenz ("Schmidtenhöhe") which is partially managed as a nature reserve where old races of cattle and horses are grazing.
View Article and Find Full Text PDFEnviron Mol Mutagen
December 2024
Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Ontario, Canada.
As a part of the International Workshop on Genotoxicity Testing (IWGT) in 2022, a workgroup was formed to evaluate the level of validation and regulatory acceptance of transcriptomic biomarkers that identify genotoxic substances. Several such biomarkers have been developed using various molecular techniques and computational approaches. Within the IWGT workgroup on transcriptomic biomarkers, bioinformatics was a central topic of discussion, focusing on the current approaches used to process the underlying molecular data to distill a reliable predictive signal; that is, a gene set that is indicative of genotoxicity and can then be used in later studies to predict potential DNA damaging properties for uncharacterized chemicals.
View Article and Find Full Text PDFLancet Oncol
January 2025
Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK; Faculty of Health, Medicine, and Social Care, Anglia Ruskin University, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge, UK. Electronic address:
Background: Procarbazine-containing chemotherapy regimens are associated with cytopenias and infertility, suggesting stem-cell toxicity. When treating Hodgkin lymphoma, procarbazine in escalated-dose bleomycin-etoposide-doxorubicin-cyclophosphamide-vincristine-procarbazine-prednisolone (eBEACOPP) is increasingly replaced with dacarbazine (eBEACOPDac) to reduce toxicity. We aimed to investigate the impact of this drug substitution on the mutation burden in stem cells, patient survival, and toxicity.
View Article and Find Full Text PDFEur J Pediatr
December 2024
Dept. of General Pediatrics, Pediatric Cardiology and Neonatology, Medical Faculty, University Children's Hospital Düsseldorf, Heinrich Heine University, Moorenstr. 5, 40227, Düsseldorf, Germany.
Unlabelled: The integration of artificial intelligence (AI) and machine learning (ML) has shown potential for various applications in the medical field, particularly for diagnosing and managing chronic diseases among children and adolescents. This systematic review aims to comprehensively analyze and synthesize research on the use of AI for monitoring, guiding, and assisting pediatric patients with chronic diseases. Five major electronic databases were searched (Medline, Scopus, PsycINFO, ACM, Web of Science), along with manual searches of gray literature, personal archives, and reference lists of relevant papers.
View Article and Find Full Text PDFNat Protoc
December 2024
Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
Neuroimaging has an essential role in studies of brain health and of cerebrovascular and neurodegenerative diseases, requiring the availability of versatile magnetic resonance imaging (MRI) acquisition and processing protocols. We designed and developed a multipurpose high-resolution MRI protocol for large-scale and long-term population neuroimaging studies that includes structural, diffusion-weighted and functional MRI modalities. This modular protocol takes almost 1 h of scan time and is, apart from a concluding abdominal scan, entirely dedicated to the brain.
View Article and Find Full Text PDFBMJ Open
December 2024
Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH, Bochum, Germany
Introduction: In sepsis treatment, achieving and maintaining effective antibiotic therapy is crucial. However, optimal antibiotic dosing faces challenges due to significant variability among patients with sepsis. Therapeutic drug monitoring (TDM), the current gold standard, lacks initial dosage adjustments and global availability.
View Article and Find Full Text PDFBiomed Pharmacother
January 2025
Centre for Genomics Research, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden. Electronic address:
Vascular anomalies (VA) refer to abnormal blood or lymphatic vessel architecture, most often as a result of dysregulated growth. Venous malformations (VM), a subgroup of VAs, are triggered by activating mutations in the Angiopoietin/TIE2-PI3K/AKT/mTOR signaling pathway with TIE2 L914F (gene name TEK) being one of the most frequent mutations in patients with VMs. Although systemic targeting of the overactivated pathway is possible, it would be a therapeutic advantage to restrict treatment to only the affected lesions.
View Article and Find Full Text PDFG3 (Bethesda)
December 2024
Institute of Plant Sciences, University of Cologne, Zülpicher Straße 47b, 50674 Cologne, Germany.
Unicellular green algae of the genus Coccomyxa are recognized for their worldwide distribution and ecological versatility. Coccomyxa elongata is a freshwater species of the Coccomyxa simplex clade, which also includes lichen symbionts. To facilitate future molecular and phylogenomic studies of this versatile clade of algae, we generated a high-quality genome assembly for Coccomyxa elongata Chodat & Jaag SAG 216-3b within the framework of the Biodiversity Genomics Center Cologne (BioC2) initiative.
View Article and Find Full Text PDFHemasphere
December 2024
Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty RWTH Aachen University Aachen Germany.
Myelofibrosis (MF) is a clonal myeloid neoplasm characterized by bone marrow fibrosis, splenomegaly, and disease-associated symptoms, as well as increased mortality, due to thrombosis, severe bleeding, infections, or progression to acute leukemia. Currently, the management of MF patients is tailored according to risk scores, with higher-risk (intermediate-2 and high-risk) patients being assessed for allogeneic stem cell transplantation, which remains the only potentially curative treatment option. On the other hand, lower risk (low- and intermediate-1 risk) patients who are symptomatic may be treated with JAK inhibitors or other drugs.
View Article and Find Full Text PDFCancer Res Treat
December 2024
Leipzig University, Medical Faculty, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Leipzig, Germany.
Purpose: HER2 inhibition represents a therapeutic approach with proven clinical efficacy in gastric cancer. However, resistance against HER2-directed therapeutics highlights the need for alternative approaches or drug combinations. Histone deacetylase inhibitors (HDACi) display a broad spectrum of antitumor properties, which may include effects on receptor tyrosine kinases.
View Article and Find Full Text PDFEur J Hum Genet
December 2024
Department of Human Genetics, Inselspital Bern, University of Bern, Bern, Switzerland.
While mostly de novo truncating variants in SCAF4 were recently identified in 18 individuals with variable neurodevelopmental phenotypes, knowledge on the molecular and clinical spectrum is still limited. We assembled data on 50 novel individuals with SCAF4 variants ascertained via GeneMatcher and personal communication. With detailed evaluation of clinical data, in silico predictions and structural modeling, we further characterized the molecular and clinical spectrum of the autosomal dominant SCAF4-associated neurodevelopmental disorder.
View Article and Find Full Text PDFJ Nucl Med
January 2025
Institute of Neuroscience and Medicine, Molecular Organization of the Brain (INM-2), Forschungszentrum Jülich, Jülich, Germany;
In animal studies it has been observed that the inhibitory neuromodulator adenosine is released into the cerebral interstitial space during hypoxic challenges. Adenosine's actions on the A adenosine receptor (AAR) protect the brain from oxygen deprivation and overexertion through adjustments in cerebral blood flow, metabolism, and electric activity. Using 8-cyclopentyl-3-(3-[F]fluoropropyl)-1-propylxanthine ([F]CPFPX), a PET tracer for the AAR, we tested the hypothesis that hypoxia-induced adenosine release reduces AAR availability in the human brain.
View Article and Find Full Text PDFJ Neurol
December 2024
Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany.
Introduction: Knowledge about the distribution and frequency of the respective haplotypes on the wildtype and mutant allele is highly relevant in the context of future gene therapy clinical studies in Spinocerebellar Ataxia Type 3, the most common autosomal dominantly inherited ataxia. Single nucleotide polymorphisms associated to the disease-causing gene, ATXN3, have been determined. We wanted to investigate the frequency and regional distribution of two intragenic single nucleotide polymorphisms (SNPs) in a large European SCA3 cohort and their relation to the clinical phenotype.
View Article and Find Full Text PDFJ Neurol
December 2024
Institute of Clinical Neuroscience and Medical Psychology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
Acad Radiol
December 2024
Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC (G.T., M.V-N., M.T.H., J.O., A.V-S., T.E., D.K.); Department of Diagnostic and Interventional Radiology, University Hospital Bonn, Bonn, Germany (J.A.L., D.Ku., A.I., D.K.); Quantitative Imaging Laboratory Bonn (QILaB), Bonn, Germany (J.A.L., D.Ku., A.I., D.K.).
Rationale And Objectives: The purpose of this study was to explore intra-individual differences in pericoronary adipose tissue (PCAT) fat attenuation index (FAI) between photon-counting detector (PCD)- and energy-integrating detector (EID)-CT.
Material And Methods: Patients were prospectively enrolled for a PCD-CT research scan within 30 days of EID-CT. Both acquisitions were reconstructed using a Qr36 kernel at 0.
Cochrane Database Syst Rev
December 2024
Cochrane Haematology, Institute of Public Health, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Background: Health literacy can be defined as a person's knowledge, motivation and competence in four steps of health-related information processing - accessing, understanding, appraising and applying health-related information. Individuals with experience of migration may encounter difficulties with or barriers to these steps that may, in turn, lead to poorer health outcomes than those of the general population. Moreover, women and men have different health challenges and needs and may respond differently to interventions aimed at improving health literacy.
View Article and Find Full Text PDFIntroduction: This study evaluates the clinical value of a deep learning-based artificial intelligence (AI) system that performs rapid brain volumetry with automatic lobe segmentation and age- and sex-adjusted percentile comparisons.
Methods: Fifty-five patients-17 with Alzheimer's disease (AD), 18 with frontotemporal dementia (FTD), and 20 healthy controls-underwent cranial magnetic resonance imaging scans. Two board-certified neuroradiologists (BCNR), two board-certified radiologists (BCR), and three radiology residents (RR) assessed the scans twice: first without AI support and then with AI assistance.
Stem Cell Res
February 2025
Institute of Physiology I, Medical Faculty, University of Bonn, Germany. Electronic address:
BAG3 plays a key role in proteostasis as a central component of the chaperone-assisted selective autophagy (CASA) complex. A point mutation (p.P209L; c.
View Article and Find Full Text PDFStem Cell Res
February 2025
Institute of Physiology I, Medical Faculty, University of Bonn, Germany. Electronic address:
BAG3 is a central component of the chaperone-assisted selective autophagy complex and thus important for proteostasis. This function is affected by a point mutation (p.P209L; c.
View Article and Find Full Text PDFESMO Open
December 2024
Department of Pharmacology, Gustave Roussy, Villejuif, France.
Arch Physiother
December 2024
Department of Medicine and Health Science "Vincenzo Tiberio", University of Molise, Campobasso - Italy.
Introduction: Frozen shoulder (FS) is a musculoskeletal disorder affecting the glenohumeral joint. This condition leads to disability and a worsening in quality of life. Despite its considerable impact on patients and its economic burden, research on the psychological and social implications of FS-as well as patients' perspectives and needs-is limited.
View Article and Find Full Text PDFCommun Med (Lond)
December 2024
Institute of Biological Information Processing (Structural Biochemistry: IBI-7), Forschungszentrum Jülich, 52428, Jülich, Germany.
Background: Quantification of Amyloid beta (Aβ) oligomers in plasma enables early diagnosis of Alzheimer's Disease (AD) and improves our understanding of underlying pathologies. However, quantification necessitates an extremely sensitive and selective technology because of very low Aβ oligomer concentrations and possible interference from matrix components.
Methods: In this report, we developed and validated a surface-based fluorescence distribution analysis (sFIDA) assay for quantification of Aβ oligomers in plasma.
Nucleic Acids Res
January 2025
Bioinformatics Group, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands.
Specialized or secondary metabolites are small molecules of biological origin, often showing potent biological activities with applications in agriculture, engineering and medicine. Usually, the biosynthesis of these natural products is governed by sets of co-regulated and physically clustered genes known as biosynthetic gene clusters (BGCs). To share information about BGCs in a standardized and machine-readable way, the Minimum Information about a Biosynthetic Gene cluster (MIBiG) data standard and repository was initiated in 2015.
View Article and Find Full Text PDFBiochem Biophys Res Commun
January 2025
Department of Orthodontics, University Hospital, Medical Faculty, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany. Electronic address:
Purpose: Autophagy is an important adaptive process for mechanotransduction, in which Damage-Regulated Autophagy Modulator 1 (DRAM1) has a key function in cell fate determination. This study aimed to analyze the influence of biomechanical loading on DRAM1 expression in periodontal cells and tissues.
Methods: Human periodontal ligament (PDL) fibroblasts were stimulated with different pressure protocols, physiological load and overload, in the presence and absence of autophagy inhibitor 3-methyladenine (3-MA) and compared with untreated cells.