364 results match your criteria: "Institute for Experimental Immunology[Affiliation]"

 - a large-scale dataset of 3D medical shapes for computer vision.

Biomed Tech (Berl)

December 2024

Institute for Artificial Intelligence in Medicine (IKIM), University Hospital Essen (AöR), Essen, Germany.

Objectives: The shape is commonly used to describe the objects. State-of-the-art algorithms in medical imaging are predominantly diverging from computer vision, where voxel grids, meshes, point clouds, and implicit surface models are used. This is seen from the growing popularity of ShapeNet (51,300 models) and Princeton ModelNet (127,915 models).

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Broad Analysis of Serum and Intrathecal Antimicrobial Antibodies in Multiple Sclerosis Underscores Unique Role of Epstein-Barr Virus.

Neurol Neuroimmunol Neuroinflamm

January 2025

From the Department of Neurology (F.P., C.O., P.S., M.N., K.R.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin; Institute for Experimental Immunology (D.W., T.L., K.S., E.G.-G.), affiliated with EUROIMMUN Medizinische Labordiagnostika AG, Luebeck; and Molecular Neuroimmunology Group (B.W., S.J.), Department of Neurology, University of Heidelberg, Germany.

Article Synopsis
  • - The study investigates the relationship between the Epstein-Barr virus (EBV) and multiple sclerosis (MS) by analyzing the presence of antibodies against EBV and other common microbes in patients with MS, revealing a universal EBV seroprevalence among participants.
  • - A total of 50 MS patients were tested for antibodies in their cerebrospinal fluid (CSF) and serum, finding that while all patients were EBV positive, the production of specific antibodies in the CSF was significantly lower for EBV compared to other viruses like measles and VZV.
  • - The results indicate that even though almost all MS patients have been exposed to EBV, the actual production of antibodies against EBV in the central
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This study investigates the prevalence and evaluates the prognostic implications of acute kidney injury (AKI) in COVID-19 patients, with a novel emphasis on the evaluation of serum uromodulin (sUmod) as a potential kidney-specific biomarker. A cohort of hospitalised COVID-19 patients (n = 378) was examined for AKI using standard criteria. In addition to traditional urinary biomarkers, sUmod levels were analysed.

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SARS-CoV-2 mRNA vaccines do not worsen autoimmunity in patients with autoimmune liver diseases.

J Autoimmun

December 2024

Università della Svizzera Italiana, Facoltà di Scienze Biomediche, Lugano, Switzerland; Institute for Research in Biomedicine (IRB), Bellinzona, Switzerland; MowatLabs, Faculty of Life Sciences & Medicine, King's College London, King's College Hospital, London, UK; Epatocentro Ticino, Lugano, Switzerland. Electronic address:

Article Synopsis
  • Researchers studied the impact of mRNA SARS-CoV-2 vaccines on patients with autoimmune liver diseases to see if vaccination worsened their conditions.
  • A total of 49 patients with primary biliary cholangitis (PBC), 35 with autoimmune hepatitis (AIH), and 9 with primary sclerosing cholangitis (PSC) were tested for autoantibodies before and after vaccination, with results indicating higher rates of autoantibody positivity in liver disease patients compared to healthcare workers.
  • Despite some fluctuations in autoantibody levels following vaccination, the study concluded that mRNA vaccines do not cause significant short-term worsening of autoimmunity in these patients.
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Introduction: Prior research identified four neurochemical cerebrospinal fluid (CSF) biomarkers, Aβ1-42, Aβ1-40, tTau, and pTau(181), as core diagnostic markers for Alzheimer's disease (AD). Determination of AD biomarkers using immunoassays can support differential diagnosis of AD vs. several neuropsychiatric disorders, which is important because the respective treatment regimens differ.

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Proteomic Characterization of 1000 Human and Murine Neutrophils Freshly Isolated From Blood and Sites of Sterile Inflammation.

Mol Cell Proteomics

November 2024

Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund, Germany; Institute for Experimental Immunology and Imaging, University Hospital, University of Duisburg-Essen, Essen, Germany. Electronic address:

Neutrophils are indispensable for defense against pathogens. Injured tissue-infiltrated neutrophils can establish a niche of chronic inflammation and promote degeneration. Studies investigated transcriptome of single-infiltrated neutrophils which could misinterpret molecular states of these post mitotic cells.

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Background: The discrepancy between experimental research and clinical trial outcomes is a persistent challenge in preclinical studies, particularly in stroke research. A possible factor contributing to this issue is the lack of standardization across experimental stroke models, leading to poor reproducibility in multicenter studies. This study addresses this gap by aiming to enhance reproducibility and the efficacy of multicenter studies through the harmonization of protocols and training of involved personnel.

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Introduction: Robust immunoassays for quantification of Alzheimer's disease (AD)-specific biomarkers are required for routine diagnostics. We report analytical performance characteristics of four new chemiluminescence immunoassays (ChLIA, EUROIMMUN) running on closed, fully automated random-access instruments for quantification of Aβ, Aβ, tTau, and pTau(181) in human cerebrospinal fluid (CSF).

Methods: ChLIAs were validated according to the guidelines of the Clinical and Laboratory Standards Institute (CLSI).

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Toxoplasmosis caused by Toxoplasma gondii is a protozoal zoonosis with high sanitary risk for pregnant women and immunocompromised people. Felids, including domestic cats, are the only definitive hosts of T. gondii.

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Article Synopsis
  • * Researchers discovered that this drop in IgA happens because the immune system cells that make it are harmed after injury.
  • * They also found that certain cells called neutrophils cause this problem, but if these cells are removed or their action is blocked, the levels of IgA can be preserved in both patients and mice.
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Article Synopsis
  • The study explores how thyroid hormones (THs), specifically through the thyroid hormone receptor α (TRα), impact the activation and function of T cells, particularly regulatory T cells (Tregs).
  • Researchers found that a lack of TRα signaling increases both the number and the activation level of Tregs, suggesting a more migratory and activated Treg phenotype.
  • The findings suggest that TRα signaling is crucial in T cell differentiation and may influence immune responses and inflammation, highlighting its potential role in disease regulation.
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Article Synopsis
  • Inactivation of the A20 gene is linked to a specific form of lymphoma and is studied in patients with haploinsufficiency of A20 (HA20), revealing immune system impacts.
  • In a study of 34 HA20 patients, researchers found that the loss of one A20 gene copy leads to an increase in self-reactive lymphocyte receptors, often seen in lymphomas.
  • The immune changes are driven by a feedback loop involving tumor necrosis factor (TNF), A20, and NF-κB, and can potentially be reversed by anti-TNF treatment, but may still lead to lymphoma development.
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Article Synopsis
  • Recent advances in light-sheet microscopy now allow for 3D analysis of microvascular networks in brain tissue without the need for histological sectioning, which was previously a barrier.
  • In a study involving mice after a stroke model, researchers observed significant changes in microvessels over time, including an initial loss followed by a reemergence and increased complexity of small microvessels within 56 days.
  • The administration of FTY720 (Fingolimod) after ischemia enhanced the growth and branching of small microvessels, highlighting its potential in improving microvascular architecture following a stroke.
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Influence of Kidney Environment Parameters on Antibiotic Efficacy Against Uropathogenic Escherichia coli.

Eur Urol Focus

September 2024

Clinic for Urology, Pediatric Urology and Andrology, Justus-Liebig-University of Giessen, Giessen, Germany; German Center for Infection Research (DZIF), Partner Site Giessen-Marburg-Langen, Giessen, Germany.

Article Synopsis
  • Urinary tract infections (UTIs) are commonly caused by bacteria, particularly Escherichia coli, with kidney infections (pyelonephritis) being severe and difficult to treat due to the unique kidney microenvironment.
  • The study tested how factors like sodium chloride, urea, and pH levels affect the effectiveness of antibiotics (ertapenem, levofloxacin, and ceftriaxone) against E. coli strains in conditions mimicking the kidney.
  • Findings showed that pH significantly affects levofloxacin's effectiveness, while sodium chloride and urea impact various strains differently, highlighting the need for more research on other antibiotics and kidney conditions for better treatment strategies.
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Cranioencephalic functional lymphoid units in glioblastoma.

Nat Med

October 2024

German Cancer Consortium (DKTK), partner site Essen/Düsseldorf, a partnership between DKFZ and University Hospital Essen, University Duisburg-Essen, Essen, Germany.

The ecosystem of brain tumors is considered immunosuppressed, but our current knowledge may be incomplete. Here we analyzed clinical cell and tissue specimens derived from patients presenting with glioblastoma or nonmalignant intracranial disease to report that the cranial bone (CB) marrow, in juxtaposition to treatment-naive glioblastoma tumors, harbors active lymphoid populations at the time of initial diagnosis. Clinical and anatomical imaging, single-cell molecular and immune cell profiling and quantification of tumor reactivity identified CD8 T cell clonotypes in the CB that were also found in the tumor.

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Article Synopsis
  • - Macrophages are vital for maintaining specific functions and balance in the adrenal gland, particularly in regulating aldosterone production through their interactions with blood vessels.
  • - The study reveals that the absence of the molecule VEGF-A in macrophages leads to changes in blood vessel structure, resulting in increased aldosterone secretion and associated health issues like high blood pressure.
  • - Findings suggest that the communication between macrophages and endothelial cells is crucial for adrenal health and could have significant implications for understanding similar processes in other endocrine organs.
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Multisensory Extended Reality Applications Offer Benefits for Volumetric Biomedical Image Analysis in Research and Medicine.

J Imaging Inform Med

June 2024

Biospectroscopy, Leibniz-Institut for Analytical Science-ISAS-e.V., Bunsen-Kirchhoff-Str. 11, Dortmund, 44139, NRW, Germany.

3D data from high-resolution volumetric imaging is a central resource for diagnosis and treatment in modern medicine. While the fast development of AI enhances imaging and analysis, commonly used visualization methods lag far behind. Recent research used extended reality (XR) for perceiving 3D images with visual depth perception and touch but used restrictive haptic devices.

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Cytotoxic T lymphocyte (CTL) motility is an important feature of effective CTL responses and is impaired when CTLs become exhausted, e.g. during chronic retroviral infections.

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BackgroundTick-borne encephalitis (TBE) is a severe, vaccine-preventable viral infection of the central nervous system. Symptoms are generally milder in children and adolescents than in adults, though severe disease does occur. A better understanding of the disease burden and duration of vaccine-mediated protection is important for vaccination recommendations.

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Introduction: Subgroups of autoantibodies directed against voltage-gated potassium channel (K) complex components have been associated with immunotherapy-responsive clinical syndromes. The high prevalence and the role of autoantibodies directly binding K remain, however, controversial. Our objective was to determine K autoantibody binding requirements and to clarify their contribution to the observed immune response.

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Background: We aimed to investigate the clinical, imaging and fluid biomarker characteristics in patients with antidiacylglycerol lipase alpha (DAGLA)-autoantibody-associated cerebellitis.

Methods: Serum and cerebrospinal fliud (CSF) samples from four index patients were subjected to comprehensive autoantibody screening by indirect immunofluorescence assay (IIFA). Immunoprecipitation, mass spectrometry and recombinant protein assays were used to identify the autoantigen.

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Article Synopsis
  • Lyme disease affects approximately 476,000 people annually in the U.S., presenting symptoms like rash and flu-like feelings, with varied outcomes that are not yet understood.
  • The study aimed to assess the presence of Powassan virus (POWV) antibodies in individuals with a history of Lyme disease, comparing those with low and high antibody levels.
  • Results showed discrepancies between antibody tests and no significant clinical symptom differences based on antibody levels, indicating challenges in diagnosing flavivirus exposure and highlighting the need for further research on potential co-infections.
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Neutrophils are indispensable for adverse cardiac remodeling in heart failure.

J Mol Cell Cardiol

April 2024

Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, USA; Division of Cardiology, Washington University School of Medicine, St. Louis, MO, USA. Electronic address:

Persistent immune activation contributes significantly to left ventricular (LV) dysfunction and adverse remodeling in heart failure (HF). In contrast to their well-known essential role in acute myocardial infarction (MI) as first responders that clear dead cells and facilitate subsequent reparative macrophage polarization, the role of neutrophils in the pathobiology of chronic ischemic HF is poorly defined. To determine the importance of neutrophils in the progression of ischemic cardiomyopathy, we measured their production, levels, and activation in a mouse model of chronic HF 8 weeks after permanent coronary artery ligation and large MI.

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