1,539,420 results match your criteria: "Germany; Paul Langerhans Institute[Affiliation]"

Hub regions in the brain, recognized for their roles in ensuring efficient information transfer, are vulnerable to pathological alterations in neurodegenerative conditions, including Alzheimer's disease (AD). Computational simulations and animal experiments have hinted at the theory of activity-dependent degeneration as the cause of this hub vulnerability. However, two critical issues remain unresolved.

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Plasma flows with enhanced dynamic pressure, known as magnetosheath jets, are often found downstream of collisionless shocks. As they propagate through the magnetosheath, they interact with the surrounding plasma, shaping its properties, and potentially becoming geoeffective upon reaching the magnetopause. In recent years (since 2016), new research has produced vital results that have significantly enhanced our understanding on many aspects of jets.

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Introduction: A fundamental property of the neocortex is its columnar organization in many species. Generally, neurons of the same column share stimulus preferences and have strong anatomical connections across layers. These features suggest that neurons within a column operate as one unified network.

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First line treatment with subcutaneous efgartigimod in impending myasthenic crisis: a case report.

Ther Adv Neurol Disord

December 2024

Department of Neurology, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, Augsburg 86156, Germany.

In acetylcholine receptor (AChR) antibody-positive generalized myasthenia gravis (gMG), neonatal Fc-receptor (FcRn) inhibition has broadened the therapeutic spectrum. Myasthenic crisis (MC), heralded by an impending myasthenic crisis (iMC), is a critical condition requiring treatments with rapid onset and sustained efficacy. Currently treatments used for iMC, including intravenous immunoglobulins and plasma exchange/immunoadsorption, have limitations, such as delayed onset of action and potential side effects.

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In seropositive myasthenia gravis (MG), complement inhibition has been shown to be an effective and a fast-acting therapeutic option. Myasthenic crisis (MC), usually preceded by impending MC, is a life-threatening complication requiring highly effective treatments with rapid onset of action. Currently used treatment options of MC are limited, consisting mainly of symptomatic and immune therapies, that is, intravenous immunoglobulins and plasma exchange/immunoadsorption.

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The case for neurons: a no-go theorem for consciousness on a chip.

Neurosci Conscious

December 2024

Department of Philosophy, Institute of Technology Futures, Karlsruhe Institute of Technology, Douglasstraße 24, Karlsruhe 76133, Germany.

We apply the methodology of no-go theorems as developed in physics to the question of artificial consciousness. The result is a no-go theorem which shows that under a general assumption, called dynamical relevance, Artificial Intelligence (AI) systems that run on contemporary computer chips cannot be conscious. Consciousness is dynamically relevant, simply put, if, according to a theory of consciousness, it is relevant for the temporal evolution of a system's states.

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Computational generation of cyclic peptide inhibitors using machine learning models requires large size training data sets often difficult to generate experimentally. Here we demonstrated that sequential combination of Random Forest Regression with the pseudolikelihood maximization Direct Coupling Analysis method and Monte Carlo simulation can effectively enhance the design pipeline of cyclic peptide inhibitors of a tumor-associated protease even for small experimental data sets. Further studies showed that such -evolved cyclic peptides are more potent than the best peptide inhibitors previously developed to this target.

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Advancing early diagnosis of inflammatory bowel disease: A call for enhanced efforts.

World J Gastroenterol

December 2024

Department of Gastroenterology and Hepatology/Medical Engineering Integration Laboratory of Digestive Endoscopy, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.

The diagnosis of inflammatory bowel disease (IBD) is complicated by its nonspecific clinical presentation and the limited accuracy of existing biomarker tests, frequently resulting in significant delays from the time of symptom onset to the achievement of a definitive diagnosis. Thus, improving the early identification of IBD remains a crucial focus for gastroenterologists. Blüthner innovatively utilized medical data from German IBD patients to investigate risk factors contributing to these diagnostic delays.

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As early as 1978, the World Health Organization set primary healthcare as the basis on which health systems should be built worldwide. However, the health systems of the different countries show considerable variations in terms of the implementation of gatekeeping from primary to secondary healthcare and direct access to specialists and hospital care. This literature review attempts to present the gatekeeping system with references to the UK, Sweden, the Netherlands, and Germany compared to the situation in Greece, where no gatekeeping system exists.

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Sensory preservation in reduction mammoplasty using the nipple-areola complex-carrying pedicle technique for gigantomastia: A systematic review and meta-analysis.

JPRAS Open

March 2025

Department of Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland.

Background: Gigantomastia is a disabling condition characterized by excess breast tissue. Historically, free nipple graft (FNG) has been preferred, prioritizing the nipple-areola complex (NAC) vascularity. The NAC-carrying pedicle technique, which is most commonly used in case of hypertrophy of the breast, has been suggested as a viable alternative for gigantomastia according to recent evidence, with reduced rates of NAC necrosis and improved outcomes.

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Diversity and functional traits based indigenous rhizosphere associated phosphate solubilizing bacteria for sustainable production of rice.

Front Microbiol

December 2024

Division of Soil and Environmental Biotechnology, National Institute for Biotechnology and Genetic Engineering College (NIBGE-C), Pakistan Institute of Engineering and Applied Sciences (PIEAS), Faisalabad, Pakistan.

Introduction: Rice, particularly Basmati rice, holds significant global importance as a staple food. The indiscriminate use of phosphate-based fertilizers during rice production has led to high residual levels of these chemicals in soil, impacting soil health and fertility. This study aimed to address this challenge by investigating the potential of phosphate solubilizing bacteria (PSB) in improving soil fertility and boosting the growth of Basmati rice.

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Background: As summarized by the Lancet Psychiatry Commission on youth mental health (McGorry et al., 2024), the statistics on mental disorders in children are alarming and highlight the need to expand and optimize research on childhood mental health. Although patient and public involvement (PPI) of those affected has the potential to boost both the acceptance and outcomes of research studies, the active involvement of young children, that is, primary school children, in mental health research has been neglected.

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Unlocking Micro-Origami Energy Storage.

ACS Appl Energy Mater

December 2024

Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, 09107 Chemnitz, Germany.

Transforming thin films into high-order stacks has proven effective for robust energy storage in macroscopic configurations like cylindrical, prismatic, and pouch cells. However, the lack of tools at the submillimeter scales has hindered the creation of similar high-order stacks for micro- and nanoscale energy storage devices, a critical step toward autonomous intelligent microsystems. This Spotlight on Applications article presents recent advancements in micro-origami technology, focusing on shaping nano/micrometer-thick films into three-dimensional architectures to achieve folded or rolled structures for microscale energy storage devices.

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Background: Sleep deprivation leads to decreased performance, alertness and degradation in the health status of a person. Often the person remains unaware of the reduced alertness and may end up taking inaccurate decisions. There was a need to study the sleep duration of college goers and to study the effect of total night-time sleep duration on daytime Electroencephalogram (EEG) characteristics.

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Voice of a woman: influence of interaction partner characteristics on cycle dependent vocal changes in women.

Front Psychol

December 2024

Department for General Psychology and Cognitive Neuroscience, Institute of Psychology, Friedrich Schiller University, Jena, Germany.

Introduction: Research has shown that women's vocal characteristics change during the menstrual cycle. Further, evidence suggests that individuals alter their voices depending on the context, such as when speaking to a highly attractive person, or a person with a different social status. The present study aimed at investigating the degree to which women's voices change depending on the vocal characteristics of the interaction partner, and how any such changes are modulated by the woman's current menstrual cycle phase.

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Introduction: Inappropriate reactive (provoked) aggression is common in various psychiatric disorders, including Borderline Personality Disorder (BPD) and, to a lesser extent, Major Depressive Disorder (MDD). Less is known about proactive (unprovoked) aggression in these patients, with mixed findings in the literature. Drawing from the current evidence, we expect higher trait aggression in both patient groups and higher behavioral proactive aggression and physiological arousal in patients with BPD compared to both MDD and healthy participants (HC).

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Introduction: Anodal transcranial direct current stimulation (tDCS) has been reported to modulate gamma-aminobutyric acid levels and cerebral energy consumption in the brain. This study aims to investigate long-term GABA and cerebral energy modulation following anodal tDCS over the primary motor cortex.

Method: To assess GABA and energy level changes, proton and phosphorus magnetic resonance spectroscopy data were acquired before and after anodal or sham tDCS.

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Survival after surgery for acute type A aortic dissection in octogenarians.

J Geriatr Cardiol

November 2024

Department of Cardiovascular Surgery, Centro Cardiologico Monzino IRCCS, Milan, Italy.

Objective: To evaluate the benefits of surgical repair acute type A aortic dissection (ATAAD) on survival of octogenarians.

Methods: Patients who underwent surgery for acute ATAAD from the multicenter European Registry of Type A Aortic Dissection (ERTAAD) were the subjects of the present analysis.

Results: 326 (8.

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Deep learning-based multiclass segmentation in aneurysmal subarachnoid hemorrhage.

Front Neurol

December 2024

CLAIM - Charité Lab for AI in Medicine, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.

Introduction: Radiological scores used to assess the extent of subarachnoid hemorrhage are limited by intrarater and interrater variability and do not utilize all available information from the imaging. Image segmentation enables precise identification and delineation of objects or regions of interest and offers the potential for automatization of score assessments using precise volumetric information. Our study aims to develop a deep learning model that enables automated multiclass segmentation of structures and pathologies relevant for aneurysmal subarachnoid hemorrhage outcome prediction.

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Vascular calcification is a common phenomenon in various vascular diseases, where its presence heralds increased occurrence of adverse disease events, which invariably lead to increased morbidity and mortality in patients. Although the impact of calcification has become apparent, adequate and early detection of the most damaging form of early microcalcification is still in its infancy, preventing reliable identification of locations that would benefit from intervention. In this review, we will provide an overview of the current state-of-the-art noninvasive calcification imaging and its persisting limitations.

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Introduction: Monitoring internal load is crucial for athletes but often requires invasive methods for muscle-related parameters, limiting practicality. Infrared thermography (IRT) related parameters might overcome this limitation. This systematic review aimed to examine the available literature on the response of IRT related parameters to (non-)sport specific exercise and reveal relationships with internal load parameters in athletic populations.

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Long-range data transmission in a fault-tolerant quantum bus architecture.

npj Quantum Inf

December 2024

Department of Mathematics, School of Computation, Information and Technology, Technical University of Munich, Garching, Germany.

We propose a fault-tolerant scheme for generating long-range entanglement at the ends of a rectangular array of qubits of length with a square cross-section of qubits. It is realized by a constant-depth circuit producing a constant-fidelity Bell-pair (independent of ) for local stochastic noise of strength below an experimentally realistic threshold. The scheme can be viewed as a quantum bus in a quantum computing architecture where qubits are arranged on a rectangular 3D grid, and all operations are between neighboring qubits.

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Revisiting astrocytic calcium signaling in the brain.

Fundam Res

November 2024

Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing 210009, China.

Astrocytes, characterized by complex spongiform morphology, participate in various physiological processes, and abnormal changes in their calcium (Ca) signaling are implicated in central nervous system disorders. However, medications targeting the control of Ca have fallen short of the anticipated therapeutic outcomes in clinical applications. This underscores the fact that our comprehension of this intricate regulation of calcium ions remains considerably incomplete.

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Purpose: Although studies have evaluated benralizumab, a monoclonal IL-5 receptor α antibody in severe eosinophilic asthma (SEA), in real-world settings, additional evidence is needed to further characterize its effectiveness in specific patient populations. Our study aimed to evaluate asthma control over 56 weeks in patients treated with benralizumab in Swiss real-world settings.

Patients And Methods: Conducted across 13 centres, this prospective, observational, non-interventional study involved 73 adults with physician confirmed SEA.

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