1,541,575 results match your criteria: "Germany; Bavarian Cancer Research Center BZKF[Affiliation]"
Plant Biol (Stuttg)
January 2025
Chemical Ecology, Bielefeld University, Bielefeld, Germany.
Some plant species produce an extraordinary diversity of specialized metabolites. The diverse class of terpenes is characteristic for many aromatic plants, and terpenes can occur as both emitted volatiles and stored compounds. Little is known about how intraspecific chemodiversity and phenotypic integration of both emitted volatile and stored terpenes differ intra-individually across plant development and between different plant parts, and studies considering both spatial and temporal scales are scarce.
View Article and Find Full Text PDFArch Toxicol
January 2025
Translational Center Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), Röntgenring 12, 97070, Würzburg, Germany.
The potential risk of chemicals to the human eye is assessed by adopted test guidelines (TGs) for regulatory purposes to ensure consumer safety. Over the past decade, the Organization for Economic Co-operation and Development (OECD) has approved new approach methodologies (NAMs) to predict chemical eye damage. However, existing NAMs remain associated with limitations: First, no full replacement of the in vivo Draize eye test due to limited predictability of severe/mild damage was reached.
View Article and Find Full Text PDFPflugers Arch
January 2025
Institute for Genetics of Heart Diseases (IfGH), Department of Cardiovascular Medicine, University Hospital Münster, 48149, Münster, Germany.
J Antimicrob Chemother
January 2025
Department of Pharmacology and Therapeutics, University of Liverpoool, Liverpool, UK.
Background: In 2023, there were 39.9 million people living with HIV (PLWH) worldwide and 630 000 deaths related to HIV. New strategies are needed, and long-acting antiretrovirals (LAAs) are now widely considered to have great potential to help end the HIV epidemic.
View Article and Find Full Text PDFAnaesthesiologie
January 2025
Department of Paediatric Anaesthesiology and Endoscopy, Children's Hospital Cologne, Amsterdamer Straße 59, 50735, Cologne, Germany.
NMR Biomed
February 2025
Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
The need to quantify brain glutathione (GSH) accurately by J-difference spectroscopy has stimulated assessment of the TE effects on GSH edited signals at the popular field strength 3 T. We performed multiple-TE J-difference MRS at two sites to evaluate the GSH T relaxation and TE dependence of the GSH signal resolution. Two 10-ms spectrally selective Gaussian editing RF pulses were implemented in 3 T MEGA-PRESS sequences at two sites having different vendors.
View Article and Find Full Text PDFJ Appl Clin Med Phys
January 2025
University Clinic for Medical Radiation Physics, Medical Campus Pius Hospital, Carl von Ossietzky University, Oldenburg, Germany.
Purpose: The self-shielding radiosurgery system ZAP-X consists of a 3 MV linear accelerator and eight round collimators. For this system, it is a common practice to perform the reference dosimetry using the largest 25 mm diameter collimator at a source-to-axis distance (SAD) of 45 cm with the PTW Semiflex3D chamber placed at a measurement depth of 7 mm in water. Existing dosimetry protocols do not provide correction for these measurement conditions.
View Article and Find Full Text PDFChemphyschem
January 2025
Friedrich-Schiller-University Jena, Institute of Physical Chemistry, Helmholtzweg 4, 7743, Jena, GERMANY.
The design and development of particulate photocatalysts has been an attractive strategy to incorporate earth-abundant metal ions to water splitting devices. Herein, we synthesized CoFe-Prussian blue (PB) coated ZnO origami core-shell nanostructures (PB@ZnO) with different mass ratio of PB components and investigated their photocatalytic water oxidation activities in the presence of an electron scavenger. Photocatalytic experiments reveal that the integration of PB on ZnO boosts the oxygen evolution rate by a factor of ~2.
View Article and Find Full Text PDFMethods Mol Biol
January 2025
Mildred Scheel Early Career Centre (MSNZ) for Cancer Research, University Hospital Würzburg, IZKF/MSNZ, Würzburg, Germany.
Oral squamous cell carcinoma (OSCC) is the most common form of head and neck cancer. The current standard for treating primary OSCC is surgical resection combined with radiotherapy and chemotherapy. Despite improved therapeutic strategies, OSCC has high rates of metastasis and mortality, with one in two patients dying of the disease.
View Article and Find Full Text PDFMethods Mol Biol
January 2025
Brandenburg Technische Universität Cottbus-Senftenberg, Faculty of Health Sciences, Senftenberg, Germany.
Muscle stem cells (MuSCs) lose a large proportion of their characteristics when removed from their niche, hampering the analysis of muscle stem cell functionality. However, the isolation and culture of single floating myofibers with their adjacent muscle stem cells allow the short-term culture and manipulation of muscle stem cells in conditions as close as possible to the endogenous niche. Here, the isolation, culture and transfection with siRNA of muscle stem cells on their adjacent myofibers from young as well as old mice are described.
View Article and Find Full Text PDFAm J Reprod Immunol
January 2025
Department of Environmental Immunology, Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany.
Problem: Although it is still uncertain whether Severe Acute Respiratory Coronavirus (SARS-CoV-2) placental infection and vertical transmission occur, inflammation during early pregnancy can have devastating consequences for gestation itself and the growing fetus. If and how SARS-CoV-2-specific immune cells negatively affect placenta functionality is still unknown.
Method Of Study: We stimulated peripheral blood mononuclear cells (PBMCs) from women of reproductive age with SARS-CoV-2 peptides and cocultured them with trophoblast spheroids (HTR-8/SVneo and JEG-3) to dissect if SARS-CoV-2-activated immune cells can interfere with trophoblast functionality.
Rheumatol Ther
January 2025
Amgen GmbH, Munich, Germany.
Introduction: This study evaluated the prevalence and incidence of systemic lupus erythematosus (SLE) in Germany and explored real-world data on sequence of therapy (SOT; sequence of drugs as prescribed in clinical practice).
Methods: This retrospective, observational, longitudinal cohort study using German claims data from the WIG2 GmbH Scientific Institute for Health Economics and Health System Research database (January 2011-December 2019), extrapolated to the statutory health insurance (SHI)-insured population, evaluated prevalence and incidence in an epidemiological analysis group and SLE treatment patterns in an incident cohort (subgroup ≥ 18 years of age with incident disease and ≥ 24-month follow-up post index date). Analyses were descriptive.
J Hist Biol
January 2025
Ruhr University Bochum, Bochum, Germany.
Agnes Arber (1879-1960) was a British plant morphologist, historian of botany, and philosopher of biology. Though now largely forgotten, her work offers valuable insights into morphological as well as philosophical issues. This paper focuses on Arber's work on teleology in plants.
View Article and Find Full Text PDFGlob Chang Biol
January 2025
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, China.
Coastal wetlands contain very large carbon (C) stocks-termed as blue C-and their management has emerged as a promising nature-based solution for climate adaptation and mitigation. The interactions among sources, pools, and molecular compositions of soil organic C (SOC) within blue C ecosystems (BCEs) remain elusive. Here, we explore these interactions along an 18,000 km long coastal line of salt marshes, mangroves, and seagrasses in China.
View Article and Find Full Text PDFPharmacoepidemiol Drug Saf
January 2025
Mukoviszidose Institut gGmbH, Bonn, Germany.
The German Cystic Fibrosis (CF) Registry (GCFR) is a national General Data Protection Regulation-compliant centralised database sponsored by the German Cystic Fibrosis Association (Mukoviszidose e.V.) and based on informed consent for each participating patient, ethical approval, and data protection votes.
View Article and Find Full Text PDFChemistry
January 2025
Ruhr University Bochum: Ruhr-Universitat Bochum, Organic Chemistry II, GERMANY.
It is well established that the confinement of reactants to two dimensions influences their reactivity. However, such confinement is often dominated by charge transfer effects between the reactants and the confining walls, in particular if the walls are conductive. Also, the reactivity of carbenes on metal surfaces is significantly affected by the charge transfer between the carbene and the metal, rendering the carbene more nucleophilic or electrophilic.
View Article and Find Full Text PDFChemistry
January 2025
Ruprecht Karls Universitat Heidelberg, Organisch-Chemisches Institut, Im Neuenheimer Feld 270, 69120, Heidelberg, GERMANY.
Here we present a simple gold-catalyzed one-pot reaction of easily available diarylbutadiynes, with trimethoxybenzene as solvent and reactant to synthesize 4,6,8-trimethoxyazulenes. The methoxy substituents, which render the azulene very electron-rich, enable a change of azulenes typical regioselectivity for electrophilic substitutions, which enables facile electrophilic 2-substitution with iodine, bromine, chlorine, selenium or sulfur. Especially the 2-haloazulenes which can usually only be obtained through lengthy multistep syntheses are valuable building blocks for the synthesis of 2-substituted azulene derivatives.
View Article and Find Full Text PDFJ Pineal Res
January 2025
Institute of Physiology, Sleep Research & Clinical Chronobiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
While artificial light in urban environments was previously thought to override seasonality in humans, recent studies have challenged this assumption. We aimed to explore the relationship between seasonally varying environmental factors and changes in sleep architecture in patients with neuropsychiatric sleep disorders by comparing two consecutive years. In 770 patients, three-night polysomnography was performed at the Clinic for Sleep & Chronomedicine (St.
View Article and Find Full Text PDFInflamm Res
January 2025
Medical Faculty and University Hospital, Institute of Neural and Sensory Physiology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany.
Background: Adenosine, an ATP degradation product, is a sleep pressure factor. The adenosine 1 receptor (A1R) reports sleep need. Histaminergic neurons (HN) of the tuberomamillary nucleus (TMN) fire exclusively during wakefulness and promote arousal.
View Article and Find Full Text PDFJ Pediatr Gastroenterol Nutr
January 2025
Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
Objectives: Functional defecation disorders (FDDs) are common among children worldwide. The prevalence of these disorders has not been clearly described in Europe. This study performed a systematic review and meta-analysis on the prevalence of FDD in European children and assessed geographical, age, and sex distribution and associated factors.
View Article and Find Full Text PDFNaturwissenschaften
January 2025
Institute for Animal Cell and Systems Biology, University of Hamburg, Martin-Luther-King Platz 3, Hamburg, 20146, Germany.
Physiological or genetic assays and computational modeling are valuable tools for understanding animals' visual discrimination capabilities. Yet sometimes, the results generated by these methods appear not to jive with other aspects of an animal's appearance or natural history, and behavioral confirmatory tests are warranted. Here we examine the peculiar case of a male jumping spider that displays red, black, white, and UV color patches during courtship despite the fact that, according to microspectrophotometry and color vision modeling, they are unlikely able to discriminate red from black.
View Article and Find Full Text PDFMol Ecol
January 2025
Institute of Organismic and Molecular Evolution, Johannes Gutenberg University, Mainz, Germany.
Social insects form complex societies with division of labour between different female castes. In most species, a single queen heads the colony; in others, several queens share the task of reproduction. These different social organisations are often associated with distinct queen morphologies and life-history strategies and occur in different environments.
View Article and Find Full Text PDFOphthalmologie
January 2025
Klinik für Augenheilkunde, Universitätsaugenklinik Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Deutschland.
Due to the global effects of climate change numerous infectious diseases are increasingly spreading to regions that were previously hardly or only slightly affected. As ocular involvement is possible in many of these infectious diseases, we must also adapt to new pathogens and clinical pictures in Germany in the medium to long term. Using selected bacterial, viral and mycotic pathogens and diseases as examples, the causes of the increase in dissemination and the consequences for ophthalmology are presented.
View Article and Find Full Text PDFNeuro Oncol
January 2025
MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, ON, Canada.
Background: Meningiomas exhibit considerable clinical and biological heterogeneity. We previously identified four distinct molecular groups (immunogenic, NF2-wildtype, hypermetabolic, proliferative) that address much of this heterogeneity. Despite the utility of these groups, the stochasticity of clustering methods and the use of multi-omics data for discovery limits the potential for classifying prospective cases.
View Article and Find Full Text PDFChemistry
January 2025
University of Regensburg, Inorganic Chemistry, Universitätsstrasse 31, D-93040, Regensburg, GERMANY.
The synthesis of the cluster complexes [(Cp'''Co)3(µ3,η2:η2:η2-E3)(µ3-E)] (E = P (3), As (4)) starting from the anionic triple-decker complexes [K(18cr6)(dme)2][(Cp'''Co)2(µ,η4:η4-E4)]- (E = P (1), As (2)) by electrophilic quenching with the Co dimer [(Cp'''CoCl)2] is reported. Both complexes show a distinct redox chemistry, which was first investigated by cyclic voltammetry. Subsequently, the monoanions [K(L)(sol)n][(Cp'''Co)3(µ3,η2:η2:η2-E3)(µ3-E)] (E = P, L = 18cr6, sol = dme, n = 2 (5), E = As, L = 2,2,2-crypt, n = 0 (6)), the monocations [(Cp'''Co)3(µ3,η2:η2:η2-E3)(µ3-E)][FAl] (E = P (7), As (8)) and the dications [(Cp'''Co)3(µ3,η3:η3:η3-E4)][TEF]2 (E = P (9), As (10)) could be realized experimentally and isolated in moderate to good yields.
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