46 results match your criteria: "Friedrich-Alexander-Universitaet Erlangen-Nuernberg.[Affiliation]"

Remembering Prof. Manfred Zimmermann.

Eur J Pain

August 2024

NeuroPain - Central Integration of Pain in Humans Neurological Hospital, Lyon Centre for Neuroscience - Inserm U1028, Univ Claude Bernard Lyon 1, France.

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Associations between therapists' verbal techniques and patient-rated therapeutic alliance, insight, and problem solving.

Psychother Res

March 2024

Department of Psychosomatics and Psychotherapy, Psychologische Hochschule Berlin, Berlin, Germany.

Objective: To investigate associations between common factors (alliance, insight, problem solving) and therapists' techniques. We expected a positive association between (1) supportive techniques and the alliance, (2) interpretative techniques and insight, and (3) a stronger association between interpretative techniques and insight for patients with more severe baseline symptoms. Other associations were analyzed in an exploratory way.

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Syntaxin-1 is necessary for UNC5A-C/Netrin-1-dependent macropinocytosis and chemorepulsion.

Front Mol Neurosci

September 2023

Department of Cell Biology, Physiology and Immunology, Faculty of Biology and Institute of Neurosciences, Universitat de Barcelona (UB), Barcelona, Spain.

Article Synopsis
  • Axonal guidance is essential for proper brain connectivity and is influenced by guidance cues like Netrin-1, which can attract or repel axons depending on receptor interactions.
  • This study utilized various biochemical and cell biology techniques to explore the mechanisms behind Netrin-1's role in axonal repulsion during brain development.
  • Results indicated that Netrin-1 activates macropinocytosis, facilitated by a protein complex with syntaxin-1, revealing that syntaxin-1 plays a critical role in mediating axonal guidance responses.
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The favorable optoelectronic properties of metal halide perovskites have been used for X- and γ-ray detection, solar energy, and optoelectronics. Large electronic mobility, reduced recombination losses of the electron-hole pairs, and high sensitivity upon ionizing irradiation have fostered great attention on technological realizations. Nevertheless, the recognized mixed ionic-electronic transport properties of hybrid perovskites possess severe limitations as far as long-timescale instabilities and degradation issues are faced.

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Optoacoustic (photoacoustic) imaging has seen marked advances in detection and data analysis, but there is less progress in understanding the photophysics of common optoacoustic contrast agents. This gap blocks the development of novel agents and the accurate analysis and interpretation of multispectral optoacoustic images. To close it, we developed a multimodal laser spectrometer (MLS) to enable the simultaneous measurement of optoacoustic, absorbance, and fluorescence spectra.

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Systematic investigation of filtrates and filter residues resulting from a 24 h treatment of metakaolin in different alkaline solutions were performed. On filtered metakaolin particles, inductively coupled plasma-optical emission spectrometry (ICP-OES) measurements reveal an enrichment of iron and titanium, which suggests an inhomogeneous distribution of these cations. Since the SiO/AlO ratio remains constant in all filter residues examined, the dissolution of the Si and Al monomers is congruent.

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Background: Incisional hernia repair requires detailed anatomic knowledge. Regarding median subxiphoidal hernias, the proper preparation of the fatty triangle is challenging. To foster proficiency-based training, a cost-efficient model for open median retromuscular mesh repair resembling the human body was developed, including the main anatomical structures related to the procedure.

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Article Synopsis
  • The article initially had an error in the acknowledgement section.
  • This mistake has been recognized and needs correction.
  • An updated version will be provided to address this issue.
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Hydrogen Bond Networks in Binary Mixtures of Water and Organic Solvents.

J Phys Chem B

May 2019

Institute of Thermal-, Environmental- and Resources' Process Engineering (ITUN) , Technische Universität Bergakademie Freiberg (TUBAF), Leipziger Strasse 28 , 09599 Freiberg , Germany.

Article Synopsis
  • The study introduces a method for analyzing hydrogen bond networks (HBNs) in mixtures of water and various organic solvents using optical techniques.
  • It employs experimental and computed Raman spectra to examine how hydrogen bonds form between different molecules in these mixtures.
  • Results indicate that the composition and temperature significantly affect the development of HBNs in the mixtures, highlighting the interactions between water and the organic solvents.
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Microbial patterns in patients with histamine intolerance.

J Physiol Pharmacol

August 2018

First Department of Medicine, Hector Center for Nutrition, Exercise and Sports, Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Erlangen, Germany.

Histamine intolerance represents a controversially discussed disorder. Besides an impaired degradation of orally supplied histamine due to diamine oxidase (DAO) deficiency, a deranged gut flora may also contribute to elevated histamine levels. Our aim was to determine the intestinal bacterial composition in patients with proven histamine intolerance in comparison to other food intolerances and healthy controls.

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To date, studies that reported seasonal patterns of adult neurogenesis and neuronal recruitment have correlated them to seasonal behaviors as the cause or as a consequence of neuronal changes. The aim of our study was to test this correlation, and to investigate whether there is a seasonal pattern of new neuronal recruitment that is not correlated to behavior. To do this, we used adult female zebra finches (songbirds that are not seasonal breeders), kept them under constant social, behavioral, and spatial environments, and compared neuronal recruitment in their brains during two seasons, under natural and laboratory conditions.

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Cardiac calsequestrin (Casq2) associates with the ryanodine receptor 2 channel in the junctional sarcoplasmic reticulum to regulate Ca2+ release into the cytoplasm. Patients carrying mutations in CASQ2 display low resting heart rates under basal conditions and stress-induced polymorphic ventricular tachycardia (CPVT). In this study, we generate and characterize novel conditional deletion and conditional rescue mouse models to test the influence of developmental programs on the heart rate and CPVT phenotypes.

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Treatment failure in solid tumors occurs due to the survival of specific subpopulations of cells that possess tumor-initiating (TIC) phenotypes. Studies have implicated G protein-coupled-receptors (GPCRs) in cancer progression and the acquisition of TIC phenotypes. Many of the implicated GPCRs signal through the G protein GNA13.

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Pressure-Responsive, Surfactant-Free CO-Based Nanostructured Fluids.

ACS Nano

November 2017

Centro de Investigacion Biomedica en Red de Bioingenieria, Biomateriales y Nanomedicina (CIBER-BBN) , 28029 Madrid, Spain.

Article Synopsis
  • Microemulsions are commonly used in advanced material and chemical processing but often require large amounts of surfactants, posing economic and ecological challenges.
  • Researchers have explored surfactant-free microemulsion-like systems utilizing carbon dioxide in a water/organic-solvent/CO mixture, which creates unique "water-rich" nanodomains within a "water-depleted" matrix.
  • These systems feature pressure-responsive nanostructuration, allowing for rapid and reversible mixing and demixing of contents, making them promising for molecular material processing and chemical engineering applications due to their contaminant-free nature and ability to dissolve various molecules.
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Non-immunogenic dextran-coated superparamagnetic iron oxide nanoparticles: a biocompatible, size-tunable contrast agent for magnetic resonance imaging.

Int J Nanomedicine

February 2018

Cardiovascular Nanomedicine Unit, Section of Experimental Oncology und Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, ENT Department, University Hospital Erlangen, Friedrich-Alexander-Universitaet Erlangen-Nuernberg.

Iron oxide-based contrast agents have been in clinical use for magnetic resonance imaging (MRI) of lymph nodes, liver, intestines, and the cardiovascular system. Superparamagnetic iron oxide nanoparticles (SPIONs) have high potential as a contrast agent for MRI, but no intravenous iron oxide-containing agents are currently approved for clinical imaging. The aim of our work was to analyze the hemocompatibility and immuno-safety of a new type of dextran-coated SPIONs (SPIONdex) and to characterize these nanoparticles with ultra-high-field MRI.

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Article Synopsis
  • This study looks at using in situ Raman spectroscopy to monitor how fruits, specifically mango and persimmon, are dried using supercritical carbon dioxide (SC-CO₂).
  • The experiments were done at high pressure (10 MPa) and temperature (313 K), focusing on changes in water content and fruit structure during drying.
  • The findings show that using a 532 nm excitation wavelength provides better quality spectra compared to 785 nm, and that CO₂ absorption helps improve water extraction from the fruit.
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Sheet-Like Remodeling of the Transverse Tubular System in Human Heart Failure Impairs Excitation-Contraction Coupling and Functional Recovery by Mechanical Unloading.

Circulation

April 2017

From Nora Eccles Harrison Cardiovascular Research and Training Institute (T.S., A.A., M.T.-F., S.G.D., F.B.S.), Molecular Medicine Program (S.N., N.A.D., D.Y.L., C.H.S.), Department of Bioengineering (A.A., F.B.S.), Division of Cardiovascular Medicine (W.D.X., M.J.B., I.T., D.Y.L., S.G.D.), and Division of Cardiothoracic Surgery (C.H.S.), University of Utah, Salt Lake City. Dr Seidel is currently at the Institute for Cellular and Molecular Physiology, Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Germany.

Background: Cardiac recovery in response to mechanical unloading by left ventricular assist devices (LVADs) has been demonstrated in subgroups of patients with chronic heart failure (HF). Hallmarks of HF are depletion and disorganization of the transverse tubular system (t-system) in cardiomyocytes. Here, we investigated remodeling of the t-system in human end-stage HF and its role in cardiac recovery.

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Few studies have addressed likely gene × gene (ie, epistatic) interactions in mediating risk for schizophrenia. Using a preclinical genetic approach, we investigated whether simultaneous disruption of the risk factors Neuregulin-1 (NRG1) and Disrupted-in-schizophrenia 1 (DISC1) would produce a disease-relevant phenotypic profile different from that observed following disruption to either gene alone. NRG1 heterozygotes exhibited hyperactivity and disruption to prepulse inhibition, both reversed by antipsychotic treatment, and accompanied by reduced striatal dopamine D2 receptor protein expression, impaired social cognition, and altered glutamatergic synaptic protein expression in selected brain areas.

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We advocate a more contextual perspective in giftedness research. In our view, doing so opens up three particularly interesting research areas, which we refer to as the participation issue, the effectiveness issue, and the interaction issue. To illustrate their utility, we examined characteristics of females participating in German high achiever-track secondary education who had applied for participation in a 1-year extracurricular e-mentoring program in science, technology, engineering, and mathematics (STEM) (n = 1237).

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Background: Previous data suggest that reticulated platelets significantly affect antiplatelet response to thienopyridines. It is unknown whether parameters describing reticulated platelets can predict antiplatelet response to thienopyridines.

Objectives: The authors sought to determine the extent to which parameters describing reticulated platelets can predict antiplatelet response to thienopyridine loading compared with established predictors.

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Objective: Mutations in the spastic paraplegia gene 11 (SPG11), encoding spatacsin, cause the most frequent form of autosomal-recessive complex hereditary spastic paraplegia (HSP) and juvenile-onset amyotrophic lateral sclerosis (ALS5). When SPG11 is mutated, patients frequently present with spastic paraparesis, a thin corpus callosum, and cognitive impairment. We previously delineated a neurodegenerative phenotype in neurons of these patients.

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A push-pull unsymmetrical subphthalocyanine dimer.

Chem Sci

October 2015

Departamento de Química Orgánica , Universidad Autónoma de Madrid , Cantoblanco , 28049 Madrid , Spain . Email: ; Email:

Unsymmetrical subphthalocyanine fused dimers have been prepared from appropriate -dinitrile SubPc precursors. In particular, either electron-donating or electron-accepting substituents have been introduced on each SubPc constituent unit, resulting in unprecedented push-pull π-extended curved aromatic macrocycles. From fluorescence experiments in solvents of different polarity we conclude a dual fluorescence, namely a delocalized singlet excited state (1.

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Article Synopsis
  • A new method using phase-selective Raman spectroscopy enables fast and noninvasive measurement of vapor-liquid equilibria (VLE) in multiphase flows within microcapillaries.
  • This technique was tested on binary and ternary mixtures (acetone, water, carbon dioxide, and nitrogen) at high pressures (up to 10 MPa) and temperatures (up to 333 K).
  • The findings were validated with existing data and expanded the high-pressure VLE database by exploring conditions not previously documented.
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Professional Care Team Burden (PCTB) scale - reliability, validity and factor analysis.

Health Qual Life Outcomes

February 2015

Centre for Health Services Research in Medicine, Department of Psychiatry and Psychotherapy, Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Schwabachanlage 6, 91054, Erlangen, Germany.

Background: There is growing concern about how to provide care for persons with dementia in institutions such as nursing homes, day care centers, mobile services and hospitals. Care teams (formal caregivers) have to meet specific expectations from different sides: the Person with Dementia herself, the institution, and from different family members. Out of this situation, considerable burden can emerge hindering the professional development of care team members and counteracting quality of care of care recipients.

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Two oligomers, that is, para-phenylenevinylene with either pendant Pd(ii)Pc or Zn(ii)Pc units, have been synthesized and their interactions with SWCNTs and peapods - C60@SWCNT - have been probed by complementary spectroscopy and microscopy. Spectroscopy assisted mainly in shedding light onto electronic interactions in the ground and excited state, while microscopy enabled insights into the degree of individualizing SWCNTs/C60@SWCNTs and their stabilization.

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