6,472 results match your criteria: "University of Mainz.[Affiliation]"

Peptide-Based Biomimetic Condensates via Liquid-Liquid Phase Separation as Biomedical Delivery Vehicles.

Biomacromolecules

September 2024

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.

Biomolecular condensates are dynamic liquid droplets through intracellular liquid-liquid phase separation that function as membraneless organelles, which are highly involved in various complex cellular processes and functions. Artificial analogs formed via similar pathways that can be integrated with biological complexity and advanced functions have received tremendous research interest in the field of synthetic biology. The coacervate droplet-based compartments can partition and concentrate a wide range of solutes, which are regarded as attractive candidates for mimicking phase-separation behaviors and biophysical features of biomolecular condensates.

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Low-Dose Rivaroxaban Plus Aspirin in Fragile Patients After Lower Extremity Revascularization.

J Am Coll Cardiol

August 2024

CPC Clinical Research, Aurora, Colorado, USA; Division of Cardiology, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA. Electronic address:

Article Synopsis
  • The VOYAGER PAD study found that rivaroxaban 2.5 mg combined with aspirin reduced cardiovascular events but increased bleeding in patients with symptomatic peripheral artery disease (PAD) after revascularization.
  • The study specifically looked at fragile patients, defined by age, weight, and kidney function, and assessed the drug's efficacy and safety for this group.
  • Results showed fragile patients were at greater risk for ischemic events and bleeding, but the effectiveness of rivaroxaban was consistent across both fragile and nonfragile patients.
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Understanding Adult Central Nervous System Hemangioblastomas: A Systematic Review.

World Neurosurg

November 2024

Semmes Murphey Neurologic & Spine Institute, Memphis, Tennessee, USA; Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA. Electronic address:

Background: Adult hemangioblastomas (HBs) are rare World Health Organization central nervous system (CNS) grade 1 tumors, particularly affecting the posterior cranial fossa. They exhibit a gender bias, impacting men in their fifth and sixth decades of life and manifesting sporadically or as part of von Hippel Lindau disease. Understanding the intricacies of CNS HBs is crucial for clinical decision-making.

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Objectives: The objective of this study is to examine the comparative effectiveness of vancomycin and metronidazole in a confirmatory analysis of event-free survival (EFS) after initial infection in patients with Clostridioides difficile from a German multicentre cohort study.

Methods: The IBIS multicentre cohort enrolled patients with an index episode of C. difficile infection between August 2017 and September 2020.

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Development and Psychometric Evaluation of the Hope in Medicine Scale.

Clin Psychol Eur

March 2024

Pain and Psychotherapy Research Lab, RPTU Kaiserslautern-Landau, Landau, Germany.

Background: Hope is an integral, multi-dimensional part of seeking medical treatment. The aim of this study was to develop a self-report scale, the Hope in Medicine (HIM) scale, to measure different modes of hoping in relation to the course of symptoms, the effects of treatment, and supporting medical research.

Method: We examined the psychometric properties of the scale in a sample of 74 allergic rhinitis patients participating in a 2-week randomized-controlled trial comparing open-label placebos (OLP) with treatment as usual (TAU).

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Background: The transition from school to university is often accompanied by a change in students' lifestyles. So far little is known whether convenience behavior is an essential factor affecting students' health and social interaction. In a heterogeneous population regard to sociodemographic and anthropometric characteristics the Convenience Behavior Questionnaire (CBQ) showed a better relationship between convenience-related behavior with overweight and obesity than established questionnaires.

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The analogies between the mammalian primary visual cortex and the structure of CNNs used for image classification tasks suggest that the introduction of an additional preliminary convolutional module inspired by the mathematical modeling of the precortical neuronal circuits can improve robustness with respect to global light intensity and contrast variations in the input images. We validate this hypothesis using the popular databases MNIST, FashionMNIST, and SVHN for these variations once an extra module is added.

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The immunology of B-1 cells: from development to aging.

Immun Ageing

August 2024

Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, 3000, Louvain, Belgium.

B-1 cells have intricate biology, with distinct function, phenotype and developmental origin from conventional B cells. They generate a B cell receptor with conserved germline characteristics and biased V(D)J recombination, allowing this innate-like lymphocyte to spontaneously produce self-reactive natural antibodies (NAbs) and become activated by immune stimuli in a T cell-independent manner. NAbs were suggested as "rheostats" for the chronic diseases in advanced age.

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Hearing Aid apps: are they safe, practical and beneficial for children and teens in challenging situations?

Eur Arch Otorhinolaryngol

November 2024

Communication Disorders Division, Department of Otolaryngology, Head and Neck Surgery, University of Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.

Purpose: An adult version of an app giving users the control over the level of the volume, microphone directionality and noise reduction was adapted for children. The main purpose of this study was to evaluate the effect of changes made to microphone directionality and noise reduction in the myPhonak Junior (the app) on Speech intelligibility in challenging listening environments in children and teens.

Methods: The randomized, non-blinded interventional study with a single group of subjects involved two study visits with a home trial in-between.

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Background: The Brief Symptom Inventory-18 (BSI-18) is a self-report questionnaire with three subscales, somatisation, anxiety, and depression, based on longer measures of distress. The present study proposes a shorter, nine-item version (BSI-9) of the BSI-18 as a brief screening tool for distress.

Methods: Confirmatory factor analyses and reliability and validity analyses were carried out using a representative sample of the German general population.

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Measurements of Normalized Differential Cross Sections of Inclusive η Production in e^{+}e^{-} Annihilation at Energy from 2.0000 to 3.6710 GeV.

Phys Rev Lett

July 2024

State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.

Using data samples collected with the BESIII detector operating at the BEPCII storage ring, the cross section of the inclusive process e^{+}e^{-}→η+X, normalized by the total cross section of e^{+}e^{-}→hadrons, is measured at eight center-of-mass energy points from 2.0000 to 3.6710 GeV.

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Background: The complex nature of intravenous (IV) iron formulations makes manufacturing and characterising similars challenging. This study examined whether simple in vitro tests can distinguish the high-dose IV iron formulation, Monofer® (ferric derisomaltose [FDI]), from the first intended copies of FDI, Rapifer® (FDI intended similar A [FDIIS-A]) and Tosiron® (FDI intended similar B [FDIIS-B]), approved in India and Pakistan, respectively. Neither intended similar is available in Europe or the United States.

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Sexual dimorphism arises because of divergent fitness optima between the sexes. Phenotypic divergence between sexes can range from mild to extreme. Fireflies, bioluminescent beetles, present various degrees of sexual dimorphism, with species showing very mild sexual dimorphism to species presenting female-specific neoteny, posing a unique framework to investigate the evolution of sexually dimorphic traits across species.

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Background: Mitochondria play a crucial role in adapting to fluctuating energy demands, particularly in various heart diseases. This study investigates mitochondrial morphology near intercalated discs in left ventricular (LV) heart tissues, comparing samples from patients with sinus rhythm (SR), atrial fibrillation (AF), dilated cardiomyopathy (DCM), and ischemic cardiomyopathy (ICM).

Methods: Transmission electron microscopy was used to analyze mitochondria within 0-3.

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Article Synopsis
  • Pollinator-driven evolution of floral traits significantly influences the speciation and diversification of angiosperms, with Ophrys orchids employing sexual deception by mimicking female insects to attract male pollinators.
  • The study presents a comprehensive 5.2 Gb genome sequence of Ophrys sphegodes, revealing key genetic features such as transposable element expansion and gene duplication that aid in chemical mimicry and reproductive isolation.
  • A notably differentiated genomic region on chromosome 2 is linked to pollinator-mediated evolution, indicating that this genome can help explore the genetics behind repeated sexual deception and adaptations in pollinators.
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Pateamines, derived from the sponge , function as inhibitors of the RNA helicase eIF4A and exhibit promising antiviral and anticancer properties. eIF4A plays a pivotal role in unwinding stable RNA structures within the 5'-UTR of selected mRNAs, facilitating the binding of the 43S preinitiation complex during translation initiation. Pateamines function by clamping RNA substrates onto the eIF4A surface, effectively preventing eIF4A from carrying out the unwinding step.

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Background: The pandemic and the associated consequences have been ongoing stressors with severe impacts on the population and particularly on families. Research focusing on groups dealing well with the challenges of the pandemic is scarce. Here, we aimed to identify groups being well-adjusted during the pandemic and associated predictors.

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Background: Extensive research has been undertaken to predict treatment response (TR) to antipsychotics. Most studies address TR to antipsychotics in general and as monotherapy, however, it is unknown whether patients might respond favourably to a combination of antipsychotics.

Aims: This study aimed to identify differential predictors for TR to monotherapy with amisulpride or olanzapine compared to a combination of antipsychotics.

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This review describes the formation of a protein corona (or its absence) on different classes of nanoparticles, its basic principles, and its consequences for nanomedicine. For this purpose, it describes general concepts to control (guide/minimize) the interaction between artificial nanoparticles and plasma proteins to reduce protein corona formation. Thereafter, methods for the qualitative or quantitative determination of protein corona formation are presented, as well as the properties of nanoparticle surfaces, which are relevant for protein corona prevention (or formation).

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Unlabelled: tarch tilization ystem (Sus)D-homologs are well known for their carbohydrate-binding capabilities and are part of the operon in microorganisms affiliated with the phylum Bacteroidota. Until now, SusD-like proteins have been characterized regarding their affinity toward natural polymers. In this study, three metagenomic SusD homologs (designated SusD1, SusD38489, and SusD70111) were identified and tested with respect to binding to natural and non-natural polymers.

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This study examined the acute effects of exercise testing on immunology markers, established blood-based biomarkers, and questionnaires in endurance athletes, with a focus on biological sex differences. Twenty-four healthy endurance-trained participants (16 men, age: 29.2± 7.

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Rationale: Stable carbon and oxygen isotope data of biogenic and abiogenic aragonite are of fundamental relevance in paleoclimate research. Wet-chemical analysis of such materials requires well-homogenized, fine-grained powder. In the present study, the effect of different grinding/milling methods on sample homogeneity and the potential risk of unintentional calcite formation and isotope shift were evaluated.

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LL37 alone and in complex with self-DNA triggers inflammatory responses in myeloid cells and plays a crucial role in the development of systemic autoimmune diseases, like psoriasis and systemic lupus erythematosus. We demonstrated that LL37/self-DNA complexes induce long-term metabolic and epigenetic changes in monocytes, enhancing their responsiveness to subsequent stimuli. Monocytes trained with LL37/self-DNA complexes and those derived from psoriatic patients exhibited heightened glycolytic and oxidative phosphorylation rates, elevated release of proinflammatory cytokines, and affected naïve CD4 T cells.

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First Study of Antihyperon-Nucleon Scattering Λ[over ¯]p→Λ[over ¯]p and Measurement of Λp→Λp Cross Section.

Phys Rev Lett

June 2024

State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.

Using (10.087±0.044)×10^{9} J/ψ events collected with the BESIII detector at the BEPCII storage ring, the processes Λp→Λp and Λ[over ¯]p→Λ[over ¯]p are studied, where the Λ/Λ[over ¯] baryons are produced in the process J/ψ→ΛΛ[over ¯] and the protons are the hydrogen nuclei in the cooling oil of the beam pipe.

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The Diagnosis and Treatment of Tricuspid Regurgitation.

Dtsch Arztebl Int

August 2024

Department of Cardiology, LMU Klinikum, Ludwig Maximilian University of Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany; Department of Cardiology and Angiology, University Heart Center Freiburg/Bad Krozingen, University Hospital Freiburg, Freiburg, Germany; Department of Cardiac and Vascular Surgery, University Medical Center Mainz, Johannes Gutenberg University of Mainz, Mainz, Germany.

Background: It is estimated that 6% of persons over age 75 have clinically relevant tricuspid regurgitation (TR). This condition carries a high mortality and is of particular interest because of the recent development of new interventional treatments.

Methods: This review is based on publications that were retrieved by a selective search in the PubMed database for randomized controlled trials (RCTs), observational studies, registry studies, expert recommendations, and current international guidelines.

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