4,041 results match your criteria: "Albert-Ludwigs University.[Affiliation]"

Article Synopsis
  • - Hypogammaglobulinemia without B-cells is a type of inborn error of immunity marked by low serum immunoglobulins and a lack of B-cells, with most cases linked to mutations in the BTK gene.
  • - In a study of 27 patients from 13 families, researchers discovered several novel mutations in the BTK gene along with other genetic variants in different genes, which contribute to the condition's complexity.
  • - The findings expand the understanding of this immunological disorder, especially within the Iranian community, highlighting that affected siblings may exhibit better disease management compared to other family members.
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Oxidation of Au with the synergistic Ag/0.5 I system in the commercial organic solvent 1,2,3,4-tetrafluorobenzene led to the perfluoroalkoxyaluminate salt of the [Au(CO)] cation known from superacid chemistry. This [Au(CO)] salt proved to be an excellent 'naked' Au-synthon yielding complex salts with [Au(η-P)], [Au(η-PS)] and half-sandwich [Au(η-CH)(CO)] cation.

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Molecular solar thermal systems (MOST) represent an auspicious solution for the storage of solar energy. We report silver salts as a unique class of catalysts, capable of releasing the stored energy from the promising 1,2-dihydro-1,2-azaborinine based MOST system. Mechanistic investigations provided insights into the silver catalyzed thermal backreaction, concurrently unveiling the first crystal structure of a 2-aza-3-borabicyclo[2.

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Motivation: Many diseases, such as cancer, are characterized by an alteration of cellular metabolism allowing cells to adapt to changes in the microenvironment. Stable isotope-resolved metabolomics (SIRM) and downstream data analyses are widely used techniques for unraveling cells' metabolic activity to understand the altered functioning of metabolic pathways in the diseased state. While a number of bioinformatic solutions exist for the differential analysis of SIRM data, there is currently no available resource providing a comprehensive toolbox.

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Defining Self-Management for Solid Organ Transplantation Recipients: A Mixed Method Study.

Nurs Rep

April 2024

Institute of Nursing Science, University Medical Centre, Albert-Ludwigs University Freiburg, Breisacher Straße 153, 79110 Freiburg, Germany.

Patients with Solid Organ Transplantations (SOTx) face long-term lifestyle adaptations, psychological and social adjustments, and complex self-care regimes to maintain health post-transplant. Self-management (SM) skills represent important aspects of nursing communication with SOTx patients; however, there is potential for SM to be defined narrowly in terms of medication adherence. The study presented here collated the existing definitions in a mixed method review in order to identify SM attributes for this group (including those unique to this population).

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Focus of attention in musical learning and music performance: a systematic review and discussion of focus instructions and outcome measures.

Front Psychol

April 2024

Freiburg Institute for Musicians' Medicine, University of Music Freiburg, Medical Center of Albert-Ludwigs-University Freiburg, Freiburg Center for Music Research and Teaching, Freiburg, Germany.

The topic of attentional focus (focus of attention, FOA) in musical learning and performance has recently received increasing interest, as the growing number of empirical studies inspired by the established FOA paradigm in sports by Wulf and colleagues in 1998. The current systematical review aims at collecting, abstracting, and categorizing relevant data to show which kinds of FOA instructions were applied in experimental designs and what kinds of dependent variables were used to measure the effects of FOA instruction on musical performance. The three main inclusion criteria in the selection process were experimental design, detailed descriptions of FOA instructions, and outcome measures (OMs).

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Extreme droughts can have long-lasting effects on forest community dynamics and species interactions. Yet, our understanding of how drought legacy modulates ecological relationships is just unfolding. We tested the hypothesis that leaf chemistry and herbivory show long-term responses to premature defoliation caused by an extreme drought event in European beech (Fagus sylvatica L.

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Physicians' letters are the optimal source of diagnoses for registries. However, most registries demand for diagnosis codes such as ICD-10. We herein describe an algorithm that infers ICD-10 codes from German ophthalmologic physicians' letters.

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High-resolution annotations of transcriptomes from all domains of life are essential for many sequencing-based RNA analyses, including Nanopore direct RNA sequencing (DRS), which would otherwise be hindered by misalignments and other analysis artefacts. DRS allows the capture and full-length sequencing of native RNAs, without recoding or amplification bias, and resulting data may be interrogated to define the identity and location of chemically modified ribonucleotides, as well as the length of poly(A) tails on individual RNA molecules. Existing software solutions for generating high-resolution transcriptome annotations are poorly suited to small gene dense organisms such as viruses due to the challenge of identifying distinct transcript isoforms where alternative splicing and overlapping RNAs are prevalent.

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The amygdala is important for human fear processing. However, recent research has failed to reveal specificity, with evidence that the amygdala also responds to other emotions. A more nuanced understanding of the amygdala's role in emotion processing, particularly relating to fear, is needed given the importance of effective emotional functioning for everyday function and mental health.

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Transcatheter or Surgical Treatment of Aortic-Valve Stenosis.

N Engl J Med

May 2024

From the Department of Cardiology and the Center for Population Health Innovation, University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf (S. Blankenberg, M.S., P.C., N.D., R.T., A.Z.), German Center for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung [DZHK]) partner site Hamburg-Kiel-Lübeck (S. Blankenberg, M.S., P.C., J.C., N.D., I.E., S.E., D.F., I.R.K., H.R., R.T.), and the Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg (H.R.), Hamburg, the Department of Cardiology and Angiology, BG University Hospital Bergmannsheil, Ruhr University Bochum, Bochum (M.S.), the Institute of Medical Biometry and Statistics, University of Lübeck (R.V., I.R.K.), the Departments of Cardiology, Angiology, and Intensive Care Medicine (I.E.) and Cardiovascular Surgery (S.E.), University Hospital of Schleswig-Holstein, Lübeck, the Department of Cardiology III-Adult Congenital and Valvular Heart Disease, University Hospital Münster, Müster (H.B.), the Departments of Thoracic and Cardiovascular Surgery (S. Bleiziffer) and General and Interventional Cardiology-Angiology (T.K.R.), Heart and Diabetes Center NRW, Ruhr University Bochum, Bad Oeynhausen, University Clinic of Cardiac Surgery (M.A.B.) and the Department of Internal Medicine (H.T.), Heart Center Leipzig at Leipzig University (M.A.B., H.T.), and Leipzig Heart Science (H.T.) and the Department of Cardiology at University Hospital Leipzig (A.H.), Leipzig, the Departments of Cardiac Surgery (Y.-H.C.) and Cardiology (W.-K.K.), Kerckhoff Clinic, Bad Nauheim, Medical Clinic I, the Department of Cardiology and Angiology, University of Giessen and Marburg (W.-K.K.), and Campus Kerckhoff and Medical Clinic I, University of Giessen (C. Hamm), Giessen, the Departments of Cardiovascular Surgery (J.C.) and Internal Medicine III (D.F.), University Hospital of Schleswig-Holstein, Kiel, Clinic for Cardiovascular Surgery, University Heart Center Freiburg-Bad Krozingen, University Clinic Freiburg, and the Faculty of Medicine, Albert Ludwigs University Freiburg (M.C.), and the Department of Cardiology and Angiology, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg (F.-J.N., D.W.), Freiburg, the Department of Cardiology, Angiology, and Pneumology, Heidelberg University Hospital (N.F.), DZHK partner site Heidelberg-Mannheim (N.F., M. Karck), and the Department of Cardiac Surgery, University Hospital Heidelberg (M. Karck), Heidelberg, the Departments of Cardiac Surgery (C. Hagl) and Cardiology (S.M.), University Hospital Munich, Ludwig Maximilians University Munich, DZHK partner site Munich Heart Alliance (C. Hagl, M. Krane, S.M., E.X.), and the Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, School of Medicine and Health (M. Krane), and the Department of Cardiology, German Heart Center Munich, Technical University of Munich (E.X.), Munich, DZHK partner site Rhine-Main, Rhine-Main (C. Hamm, W.-K.K., T.W.), the Departments of Cardiac Surgery (U.K.) and Internal Medicine and Cardiology (A.L.), Heart Center Dresden, University of Technology Dresden, Dresden, the Departments of Cardiology, Angiology, and Intensive Care Medicine (U.L.) and Cardiothoracic and Vascular Surgery (V.F.), Deutsches Herzzentrum der Charité, Charité University Medicine Berlin (U.L., V.F.), and DZHK partner site Berlin (U.L., V.F.), Berlin, the Departments of Internal Medicine II (L.S.M.) and Cardiothoracic Surgery (C.S.), University Medical Center Regensburg, Regensburg, and the Department of Cardiac and Vascular Surgery, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main (T.W.) - all in Germany; the Division of Cardiac Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT (M. Krane); Cardio-CARE, Medizincampus Davos, Davos (A.Z., S. Blankenberg), and the Department of Health Sciences and Technology, ETH Zurich, Translational Cardiovascular Technology, Zurich (V.F.) - both in Switzerland; and the School of Mathematics, Statistics, and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa (A.Z.).

Background: Among low-risk patients with severe, symptomatic aortic stenosis who are eligible for both transcatheter aortic-valve implantation (TAVI) and surgical aortic-valve replacement (SAVR), data are lacking on the appropriate treatment strategy in routine clinical practice.

Methods: In this randomized noninferiority trial conducted at 38 sites in Germany, we assigned patients with severe aortic stenosis who were at low or intermediate surgical risk to undergo either TAVI or SAVR. Percutaneous- and surgical-valve prostheses were selected according to operator discretion.

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Background: Physiological 0.9% saline is commonly used as an irrigation fluid in modern arthroscopy. There is a growing body of evidence that a hyperosmolar saline solution has chondroprotective effects, especially if iatrogenic injury occurs.

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Receptor transfer between immune cells by autoantibody-enhanced, CD32-driven trogocytosis is hijacked by HIV-1 to infect resting CD4 T cells.

Cell Rep Med

April 2024

Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany; German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany. Electronic address:

Immune cell phenotyping frequently detects lineage-unrelated receptors. Here, we report that surface receptors can be transferred from primary macrophages to CD4 T cells and identify the Fcγ receptor CD32 as driver and cargo of this trogocytotic transfer. Filamentous CD32 nanoprotrusions deposit distinct plasma membrane patches onto target T cells.

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Osteoarthritis of the knee, a widespread cause of knee disability, is commonly treated in orthopedics due to its rising prevalence. Lower extremity misalignment, pivotal in knee injury etiology and management, necessitates comprehensive mechanical alignment evaluation via frequently-requested weight-bearing long leg radiographs (LLR). Despite LLR's routine use, current analysis techniques are error-prone and time-consuming.

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Objectives: Evidence on the work-related societal impact of long-term health-related consequences following SARS-CoV-2 is emerging. We characterize the modified work ability index (mWAI) of employees 6 to 12 months after an acute infection compared to pre-infection.

Methods: Analyses were based on a population-based, multi-center cross-sectional study including employees aged 18-65 years with positive SARS-CoV-2 polymerase chain reaction (tested between October 2020-April 2021 in defined geographic regions in Germany).

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Alternative transcription start site usage (ATSS) is a widespread regulatory strategy that enables genes to choose between multiple genomic loci for initiating transcription. This mechanism is tightly controlled during development and is often altered in disease states. In this review, we examine the growing evidence highlighting a role for transcription start sites (TSSs) in the regulation of mRNA isoform selection during and after transcription.

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Imaging Markers Derived From MRI-Based Automated Kidney Segmentation—an Analysis of Data From the German National Cohort (NAKO Gesundheitsstudie).

Dtsch Arztebl Int

May 2024

Division of Medical Physics, Department of Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany; Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany; Division of Medical Physics, Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany; Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany; Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, Albert-Ludwigs-University Freiburg, Germany; Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Greifswald, University Medicine Greifswald, Germany; Institute for Community Medicine, University Medicine Greifswald, Germany; Department of Diagnostic and Interventional Radiology, University Hospital Augsburg, Germany; Centre for Advanced Analytics and Predictive Sciences (CAAPS), University of Augsburg, Germany; Department of Diagnostical and Interventional Radiology, University Hospital Heidelberg, Germany; Institute of Social Medicine, Epidemiology and Health Economics, Charité - Universitätsmedizin Berlin, Institute of Clinical Epidemiology and Biometry, University of Würzburg, State Institute of Health I, Bavarian Health and Food Safety Authority, Erlangen, Germany; Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), Molecular Epidemiology Research Group; Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), Biobank Technology Platform, Berlin; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany; Chair of Genetic Epidemiology, University of Regensburg, Germany; Institute of Epidemiology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg; Chair of Epidemiology, Institute for Medical Information Processing, Biometrics, and Epidemiology, Medical Faculty, Ludwig-Maximilians-University Munich; DZHK (German Centre for Cardiovascular Research), Partner Site Munich, Munich Heart Alliance, Munich; DZD (German Centre for Diabetes Research), Neuherberg; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin; Institute of Epidemiology, Kiel University, Kiel, Germany; Department of Diagnostic and Interventional Radiology, Core Facility MRDAC, University Medical Center Freiburg, Faculty of Medicine, Albert-Ludwigs-University Freiburg, Germany.

Background: Population-wide research on potential new imaging biomarkers of the kidney depends on accurate automated segmentation of the kidney and its compartments (cortex, medulla, and sinus).

Methods: We developed a robust deep-learning framework for kidney (sub-)segmentation based on a hierarchical, three-dimensional convolutional neural network (CNN) that was optimized for multiscale problems of combined localization and segmentation. We applied the CNN to abdominal magnetic resonance images from the population-based German National Cohort (NAKO) study.

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The loss of leaves and needles in tree crowns and tree mortality are increasing worldwide, mostly as a result of more frequent and severe drought stress. Scots pine (Pinus sylvestris L.) is a tree species that is strongly affected by these developments in many regions of Europe and Asia.

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Assessment of a novel NRAS in-frame tandem duplication causing a myelodysplastic/myeloproliferative neoplasm.

Exp Hematol

May 2024

Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Faculty of Medicine, University of Freiburg, Freiburg, Germany. Electronic address:

Article Synopsis
  • Myelodysplastic/myeloproliferative diseases in children are serious health issues often leading to fatal outcomes, and advancements in next-generation sequencing (NGS) have uncovered new genetic variants that help understand these conditions.
  • However, many of these variants are classified as variants of unknown significance (VUS), making it difficult to provide accurate diagnoses and targeted treatments.
  • To overcome this challenge, researchers have developed a fast zebrafish embryo model that allows them to quickly evaluate new genetic variants and therapeutic options, exemplified by a specific NRAS mutation found in a young patient, which was linked to myeloproliferative effects and can be treated with MEK inhibitors.
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Introduction: After an acute infection with the corona virus 10-20% of those affected suffer from ongoing or new symptoms. A causal therapy for the phenomenon known as Long/Post-COVID is still lacking and specific therapies addressing psychosocial needs of these patients are imperatively needed. The aim of the PsyLoCo-study is developing and piloting a psychotherapeutic manual, which addresses Long/Post-COVID-related psychosocial needs and supports in coping with persistent bodily symptoms as well as depressive or anxiety symptoms.

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Dimensional accuracy and simulation-based optimization of polyolefins and biocopolyesters for extrusion-based additive manufacturing and steam sterilization.

J Mech Behav Biomed Mater

May 2024

Medical Center - University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.

Polyolefins exhibit robust mechanical and chemical properties and can be applied in the medical field, e.g. for the manufacturing of dentures.

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Article Synopsis
  • - Social anxiety disorder (SAD) is a common mental health issue that leads to significant fear and anxiety in social contexts, with recent studies focusing on how different parts of the amygdala function during non-threatening situations.
  • - Researchers analyzed resting-state fMRI data from 135 participants to explore how brain connectivity relates to social anxiety symptoms, particularly investigating the distinct roles of amygdala subregions and a brain area called the precuneus.
  • - While there were no major differences in brain connectivity between individuals with SAD and healthy controls, specific patterns of brain connectivity were found to correlate with the severity of social anxiety symptoms, suggesting important links between brain function and social anxiety regardless of diagnostic classification.
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Behavior can be remarkably consistent, even over extended time periods, yet whether this is reflected in stable or 'drifting' neuronal responses to task features remains controversial. Here, we find a persistently active ensemble of neurons in the medial prefrontal cortex (mPFC) of mice that reliably maintains trajectory-specific tuning over several weeks while performing an olfaction-guided spatial memory task. This task-specific reference frame is stabilized during learning, upon which repeatedly active neurons show little representational drift and maintain their trajectory-specific tuning across long pauses in task exposure and across repeated changes in cue-target location pairings.

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Objective: Every year, many applicants want to study medicine. Appropriate selection procedures are needed to identify suitable candidates for the demanding curriculum. Although research on medical school admissions has shown good predictive validity for cognitive selection methods (undergraduate GPA, aptitude tests), the literature on applicants with professional and/or academic experience prior to entering medical school remains slim.

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