1,541,575 results match your criteria: "Germany; Institute of Clinical Physiology[Affiliation]"
Alzheimers Dement
December 2024
ki:elements GmbH, Saarbrücken, Germany.
Background: Changes in speech and language functions have shown to be early symptoms of AD pathology. Recent developments in automatic speech and language processing have opened avenues for objective assessments of these changes. The primary objective of this study is to explore whether speech and language markers extracted from cognitive testing conducted during an automated phone call differ according to underlying AD pathology as measured in cerebrospinal fluid (CSF) in preclinical or early stage individuals.
View Article and Find Full Text PDFNanoscale
January 2025
Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
The highly anisotropic and nonadditive nature of nanoparticle surfaces restricts their characterization by limited types of techniques that can reach atomic or molecular resolution. While small-angle neutron scattering (SANS) is a unique tool for analyzing complex systems, it has been traditionally considered a low-resolution method due to its limited scattering vector range and wide wavelength spread. In this article, we present a novel perspective on SANS by showcasing its exceptional capability to provide molecular-level insights into nanoparticle interfaces.
View Article and Find Full Text PDFHaematologica
January 2025
University Clinic Tübingen, Department for Internal Medicine II, University of Tübingen, Tübingen, Germany; German Cancer Consortium (DKTK), partner site Tübingen, a partnership between DKFZ and University Hospital Tübingen.
In acute myeloid leukemia (AML), leukemogenesis depends on cell-intrinsic genetic aberrations and thus, studies on AML require investigations in an in vivo setting as provided by patient derived xenografts (PDX) models. Here we report that, next to leukemic cell characteristics, recipient sex highly influences the outgrowth of AML cells in PDX models, with females being much better repopulated than males in primary as well as secondary transplantation assays. Testosterone may be the more important player since, strikingly, better engraftment was seen in castrated versus control male recipients, while ovariectomy did not significantly impair engraftment in females.
View Article and Find Full Text PDFCancer Med
January 2025
Department for Children and Adolescents, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany.
Background: The histologic classification of rhabdomyosarcoma (RMS) as alveolar (aRMS) or embryonal (eRMS) is of prognostic importance, with the aRMS being associated with a worse outcome. Specific gene fusions (PAX3/7::FOXO1) found in the majority of aRMS have been recognized as markers associated with poor prognosis and are included in current risk stratification instead of histologic subtypes in localized disease. In metastatic disease, the independent prognostic significance of fusion status has not been definitively established.
View Article and Find Full Text PDFCancer Med
January 2025
Division of Physical Activity, Prevention and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Objective: Cancer-related fatigue is one of the most common burdens of cancer patients. To date, most studies focused on fatigue during or after treatment. However, investigation of pretreatment fatigue is crucial to identify causal or risk factors other than cancer therapy and to enable timely fatigue management.
View Article and Find Full Text PDFClin Kidney J
January 2025
Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Bone and Mineral Research Unit, REDinREN (RD06/0016/1013, RD12/0021/0023 and RD16/0009/0017) and RICORS2040 (RD21/0005/0019) del ISCIII, Oviedo, Spain.
Background: Ageing often affects biomarker production. Yet, clinical/optimal thresholds to guide clinical decisions do not consider this. Serum albumin decreases with age, but hypoalbuminaemia is defined as serum albumin <4.
View Article and Find Full Text PDFInt J Biol Sci
January 2025
Institute of Biology Leiden, Animal Science and Health, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
The TIRAP protein is an adaptor protein in TLR signaling which links TLR2 and TLR4 to the adaptor protein Myd88. The transcriptomic profiles of zebrafish larvae from a , and mutant and the corresponding wild type controls under unchallenged developmental conditions revealed a specific involvement of in calcium homeostasis and myosin regulation. Metabolomic profiling showed that the mutation results in lower glucose levels, whereas a mutation leads to higher glucose levels.
View Article and Find Full Text PDFInt J Biol Sci
January 2025
Department of General Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
The underlying mechanisms between cancer stem cells (CSC) and epithelial-mesenchymal transition (EMT) in pancreatic cancer (PC) remain unclear. In this study, we identified TGIF2 as a target gene of CSC using sncRNA and machine learning. TGIF2 is closely related to the expression of SOX2, EGFR, and E-cadherin, indicating poor prognosis.
View Article and Find Full Text PDFKardiochir Torakochirurgia Pol
December 2024
Department of Surgery, General University Hospital of Patras, Patras, Greece.
Kardiochir Torakochirurgia Pol
December 2024
Department of Cardiothoracic and Vascular Surgery, Westpfalz Klinikum, Kaiserslautern, Germany.
Surgical treatment of lung metastases originating from head and neck tumors has shown favorable outcomes with low incidence of complications and mortality. This study aims to investigate survival and prognostic factors following pulmonary metastasectomy for head and neck cancers. A comprehensive review of the literature was conducted through the Medline database, focusing on English-language studies related to surgical treatment of lung metastases from head and neck cancers.
View Article and Find Full Text PDFFront Immunol
January 2025
Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany.
Resistance to the currently available treatment paradigms is one of the main factors that contributes to poor outcomes in patients with advanced cervical cancer. Novel targeted therapy approaches might enhance the patient's treatment outcome and are urgently needed for this malignancy. While chimeric-antigen receptor (CAR)-based adoptive immunotherapy displays a promising treatment strategy for liquid cancers, their use against cervical cancer is largely unexplored.
View Article and Find Full Text PDFACS Catal
January 2025
Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic.
Achieving the optimal balance between cost-efficiency and stability of oxygen reduction reaction (ORR) catalysts is currently among the key research focuses aiming at reaching a broader implementation of proton-exchange membrane fuel cells (PEMFCs). To address this challenge, we combine two well-established strategies to enhance both activity and stability of platinum-based ORR catalysts. Specifically, we prepare ternary PtNi-Au alloys, where each alloying element plays a distinct role: Ni reduces costs and boosts ORR activity, while Au enhances stability.
View Article and Find Full Text PDFFood Nutr Res
December 2024
Evonik Operations GmbH, Hanau-Wolfgang, Germany.
Background: Omega-3 fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are polyunsaturated fatty acids (PUFAs) with notable health benefits. Due to limited physiological production and insufficient dietary supply, external supplementation is important.
Objective: This study aimed to compare the pharmacokinetics and bioavailability of EPA and DHA in AvailOm omega-3-lysine salt (Lys-FFA) versus standard ethyl ester (EE) and triglyceride (TG) formulations after a single oral dose in healthy subjects.
PhytoKeys
December 2024
National Museum of Natural History, Smithsonian Institution, PO Box 37012, Washington, DC 20013-7012, USA National Museum of Natural History, Smithsonian Institution Washington United States of America.
A newly-discovered endemic tree species of from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status and phylogenetic placement. A modification to the existing key to Hawaiian is also provided. is a member of Stone's group having carpels connate at base, capsules 4-lobed and leaves usually opposite.
View Article and Find Full Text PDFEcol Evol
January 2025
Ecostrat GmbH Berlin Germany.
A dramatic decrease of biodiversity is currently questioning human-environment interactions that have shaped ecosystems over thousands of years. In old cultural landscapes of Central and East European (CEE) countries, a vast species decline has been reported for various taxa although intensive land cultivation has been reduced in favor of agroecological transformation, nature conservation and sustainable land management in the past 30 years. Thus, in the recent history, agricultural intensification cannot solely be discussed as the major driver controlling biodiversity.
View Article and Find Full Text PDFEcol Evol
January 2025
Unit of Evolutionary Biology/Systematic Zoology Institute for Biochemistry and Biology, University of Potsdam Potsdam Germany.
Genomics is an invaluable tool for conservation, particularly for endangered species impacted by wildlife trafficking. This study uses genomic data to provide new insights to aid conservation and management of endangered species, using as a case study the Yellow cardinal (), a bird endemic to southern South America severely affected by illegal trade and the transformation of its natural habitat. We explore population structure within the Yellow cardinal, delimiting management units and describing connectivity among them.
View Article and Find Full Text PDFNanoscale Adv
December 2024
Institute of Inorganic Chemistry (IAC), Karlsruhe Institute of Technology (KIT) Engesserstraße 15 D-76131 Karlsruhe Germany
Pt-CeO nanosponges (1 wt% Pt) with high surface area (113 m g), high pore volume (0.08 cm g) and small-sized Pt nanoparticles (1.8 ± 0.
View Article and Find Full Text PDFChem Sci
December 2024
College of Science, Engineering and Environment, University of Newcastle Callaghan NSW 2308 Australia.
The inductive effect is a central concept in chemistry and is often exemplified by the p values of acetic acid derivatives. The reduction in p is canonically attributed to the reduction in the electron density of the carboxylate group through the inductive effect. However, wave functional theory calculations presented herein reveal that the charge density of the carboxylate group is not explained by the inductive effect.
View Article and Find Full Text PDFChem Sci
November 2024
Molecular Inorganic Chemistry and Catalysis, Inorganic and Structural Chemistry, Center for Molecular Materials, Faculty of Chemistry, Universität Bielefeld Universitätsstrasse 25 D-33615 Bielefeld Germany http://www.ghadwalgroup.de.
The first carbocyclic gallylene [(ADC)Ga(GaI)] and bis-gallylene [(ADC)Ga] (ADC = PhC{N(Dipp)C}; Dipp = 2,6-iPrCH) featuring a central CGa ring annulated between two 1,3-imidazole rings are prepared by KC reductions of [(ADC)GaI]. Treatment of [(ADC)Ga] with Fe(CO) affords complex [(ADC)GaFe(CO)] in which each Ga(i) atom serves as a two-electron donor. [(ADC)Ga] activates white phosphorus (P) and the C -F bond of aryl fluorides (ArF) to yield compounds [(ADC)Ga(P)] and -/-[(ADC)GaF(Ar)], respectively.
View Article and Find Full Text PDFACS Catal
January 2025
Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy 27100.
Redox enzymes, mostly equipped with metal or organic cofactors, can vary their reactivity with oxygen by orders of magnitudes. Understanding how oxygen reactivity is controlled by the protein milieu remains an open issue with broad implications for mechanistic enzymology and enzyme design. Here, we address this problem by focusing on a widespread group of flavoenzymes that oxidize phenolic compounds derived from microbial lignin degradation, using either oxygen or a cytochrome c as electron acceptors.
View Article and Find Full Text PDFBull World Health Organ
January 2025
Water and Climate, World Health Organization European Centre for Environment and Health, Bonn, Germany.
Problem: Water, sanitation and waste infrastructure and services in Ukrainian health-care facilities often fail to meet global and national standards, hindering the provision of safe, quality care. The war has worsened existing problems.
Approach: To incrementally improve water, sanitation, hand hygiene, environmental cleaning and health-care waste practices, the World Health Organization (WHO) is working with the health ministry, the Ukrainian Public Health Centre and regional United States Centers for Disease Prevention and Control (CDC) to implement the Water and Sanitation for Health Facility Improvement Tool (WASH FIT).
Bull World Health Organ
January 2025
La Tunisie Médicale, Tunis, Tunisia.
R Soc Open Sci
January 2025
Department of Psychology, Utrecht University, Utrecht, The Netherlands.
Decades of research have shown that adversity tends to be associated with lower working memory (WM) performance. This literature has mainly focused on impairments in the capacity to hold information available in WM for further processing. However, some recent adaptation-based studies suggest that certain types of adversity can leave intact, or even enhance, the ability to rapidly update information in WM.
View Article and Find Full Text PDFR Soc Open Sci
January 2025
Centre for Mathematical Cognition, Loughborough University, Loughborough, UK.
Numbers are associated with space, but it is unclear how flexible these associations are. We investigated whether the SNARC effect (Spatial-Numerical Association of Response Codes; Dehaene . 1993 .
View Article and Find Full Text PDFR Soc Open Sci
January 2025
Department of Industrial Chemistry, College of Natural and Applied Sciences, Addis Ababa Science and Technology University, PO Box 16417, Addis Ababa, Ethiopia.
The asymmetric Schiff base prepared from ethylenediamine and pyridine-2-carboxaldehyde reacts with Fe(ClO)·6HO to form the Fe(II) complex [FeL](ClO) with L = ,-diethyl-'-(pyridin-2-yl)methylene)ethane-1,2-diamine, where the Fe(III) starting material has been unexpectedly reduced to Fe(II). This complex was characterized by elemental analysis, infrared spectra, single crystal and powder X-ray diffraction measurements, variable temperature DC magnetic measurement and room temperature Mössbauer spectroscopy. The asymmetric ligand L coordinates in a tridentate fashion through its pyridyl, azomethine and amino nitrogen atoms, generating a distorted octahedral geometry around the central metal ion.
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