42,047 results match your criteria: "University of Cologne; markus.aswendt@uk-koeln.de.[Affiliation]"

The complete genome of strain 117C, a close relative of hemotrophic mycoplasma.

Microbiol Resour Announc

January 2025

Department of Livestock Infectiology and Environmental Hygiene, University of Hohenheim, Stuttgart, Germany.

is one of the closest relatives of the highly host-adapted and uncultivable hemotrophic mycoplasma. The complete genome of strain 117C was constructed from long-reads derived from Pacific Biosciences single-molecule, real-time sequencing technology. The genome is organized into one circular, gapless chromosome with a length of 1,034 kb.

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Objectives: The aim of this study was to investigate long-term bone development in children with cerebral palsy (CP) using longitudinal measurements of total body less head bone mineral content (TBLH-BMC) and bone mineral density (TBLH-BMD).

Methods: A retrospective longitudinal analysis was performed on 109 children with CP who participated in a rehabilitation programme from 2006 to 2018. Dual-energy X-ray absorptiometry (DXA) scans were performed at the beginning of the programme and repeated as clinically indicated.

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Decision-making and climbing performance under time constraints in Olympic bouldering.

J Sports Sci

January 2025

Complexité, Innovation & Activités Motrices et Sportives (CIAMS), Sciences et Techniques des Activités Physiques et Sportives, Université d´Orléans, Orléans, France.

Kahneman's dual-process model postulates that two systems are involved in decision-making: slow thinking, defined as analytical processing of information, and fast thinking, where decisions emerge from intuitive, automatic responses. Climbers in Olympic bouldering typically engage in slow thinking to interpret movements and explore climbing strategies. However, time constraints imposed by regulations, combined with ineffective decision-making and failed climbing attempts, may compel them to make more intuitive, fast decisions.

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Functional cognition is relevant for athletic success and interdependent with physical exercise, yet despite repeatedly demonstrated inflammatory responses to physical training, there are no studies addressing the relationship between cognition and inflammation in athletes. The aim of this study was to investigate the relationship between cognitive performance and selected inflammatory, and further physiological biomarkers in elite athletes. Data from 350 elite athletes regarding cognitive performance (processing speed, selective attention, working memory, cognitive flexibility), systemic inflammatory markers, metabolic hormones, growth factors, tissue damage markers, and micronutrients (e.

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Tissue microenvironments are extremely complex and heterogeneous. It is challenging to study metabolic interaction between the different cell types in a tissue with the techniques that are currently available. Here we describe a multimodal imaging pipeline that allows cell type identification and nanoscale tracing of stable isotope-labeled compounds.

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Sphingolipids serve as building blocks of membranes to ensure subcellular compartmentalization and facilitate intercellular communication. How cell type-specific lipid compositions are achieved and what is their functional significance in tissue morphogenesis and maintenance has remained unclear. Here, we identify a stem cell-specific role for ceramide synthase 4 (CerS4) in orchestrating fate decisions in skin epidermis.

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Insulin plays a key role in metabolic homeostasis. insulin-producing cells (IPCs) are functional analogues of mammalian pancreatic beta cells and release insulin directly into circulation. To investigate the in vivo dynamics of IPC activity, we quantified the effects of nutritional and internal state changes on IPCs using electrophysiological recordings.

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Objectives: Every year, around 300 million surgeries are conducted worldwide, with an estimated 4.2 million deaths occurring within 30 days after surgery. Adequate patient education is crucial, but often falls short due to the stress patients experience before surgery.

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Background: The emergence of novel SARS-CoV-2 variants challenges immunity, particularly among immunocompromised kidney transplant recipients (KTRs). To address this, vaccines have been adjusted to circulating variants. Despite intensive vaccination efforts, SARS-CoV-2 infections surged among KTRs during the Omicron wave, enabling a direct comparison of variant-specific immunity following-vaccination against Omicron BA.

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Background: Patients who actively engage in their medical decision-making processes can experience better health outcomes. This exploratory study aimed to identify predictors of preferred and actual roles in decision-making in healthy women with BRCA1/2 pathogenic variants (PVs).

Methods: Women with BRCA1/2 PVs without a history of breast and/or ovarian cancer were recruited in six centres across Germany.

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Validation of mortality risk scores after esophagectomy.

J Cancer Res Clin Oncol

January 2025

Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany.

Purpose: Oncological esophagectomy is the mainstay in esophageal cancer treatment, but perioperative mortality remains a significant concern. Various scoring systems exist to identify patients at high risk for postoperative complications and death. In the following, we aim to evaluate and compare these different scoring systems.

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Purpose: Congenital hereditary endothelial dystrophy (CHED) impairs the sensitive phase of visual development. We examined results of Descemet stripping automated endothelial keratoplasty (DSAEK) for CHED regarding the critical period for amblyogenic factors.

Methods: Retrospective analysis of 11 eyes of 6 consecutive patients with CHED younger than 8 years treated with DSAEK and a PubMed-based literature search on management and optimal timing of the intervention.

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Trace elements increase replicability of microbial growth.

Open Biol

January 2025

Institute for Biological Physics, University of Cologne, Zülpicher Straße 77, Köln 50937, Germany.

Trace elements are often omitted from chemically defined growth media. From established properties of trace elements, we deduce that this omission makes experiments unnecessarily sensitive to unavoidable contamination with trace elements. We confirm this experimentally by growing 11 bacterial strains in high replicate with and without supplementing trace elements, keeping all other conditions as fixed as possible to isolate the effect of trace elements.

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Background: Information exchange regarding the scope and content of health studies is becoming increasingly important. Digital methods, including study websites, can facilitate such an exchange.

Objective: This scoping review aimed to describe how digital information exchange occurs between the public and researchers in health studies.

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Biomechanics of the bobsleigh push phase.

J Sports Sci

January 2025

Institute of Biomechanics and Orthopaedics, German Sport University Cologne, Cologne, Germany.

The purpose of this work was to provide a fundamental, in-depth analysis of kinematics and kinetics of the bobsleigh push phase to establish a basis for performance analysis and enhancement. Fifteen elite male athletes performed maximal effort push starts, while ground reaction forces (GRF) and 3D marker trajectories were simultaneously recorded for ground contacts of different sub-sections of the push phase (start acceleration phase: first and second ground contact after the initial push-off from the start block, acceleration phase: 10 m and high-velocity phase: 30 m). To obtain a comprehensive view of the push phase, whole-body kinematics as well as joint kinetics were analysed and compared across the push phase.

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A gut instinct for childhood leukemia prevention: microbiome-targeting recommendations aimed at parents and caregivers.

Front Public Health

January 2025

Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Centre of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany.

Childhood leukemia accounts for 30% of all pediatric cancer cases with acute lymphoblastic leukemia (ALL) being the most common subtype. Involvement of the gut microbiome in ALL development has recently garnered interest due to an increasing recognition of the key contribution the microbiome plays in maintaining the immune system's homeostatic balance. Commensal gut microbiota provide a first line of defense against different pathogens and gut microbiome immaturity has been implicated in ALL pathogenesis.

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Background And Objectives: This is a protocol for a living systematic review and meta-analysis.This review will assess the effects of state-of-the-art exercise interventions designed to promote functional mobility. Therefore, after identifying all potential interventions, we will use the F.

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Chronic Lymphocytic Leukemia: 2025 Update on the Epidemiology, Pathogenesis, Diagnosis, and Therapy.

Am J Hematol

January 2025

Department I of Internal Medicine and Medical Faculty, University of Cologne, Köln, Germany.

Disease Overview: Chronic lymphocytic leukemia (CLL) is the most frequent type of leukemia. It typically occurs in older patients and has a highly variable clinical course. Leukemic transformation is initiated by specific genomic alterations that interfere with the regulation of proliferation and apoptosis in clonal B-cells.

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Squared diffusion-weighted imaging for improving the detection of clinically significant prostate cancer.

Sci Rep

January 2025

Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany.

Aim of this study was to proof the concept of optimizing the contrast between prostate cancer (PC) and healthy tissue by DWI post-processing using a quadrature method. DWI post-processing was performed on 30 patients (median age 67 years, prostate specific antigen 8.0 ng/ml) with PC and clear MRI findings (PI-RADS 4 and 5).

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A cost minimized immunoaffinity protocol was developed, which allows the direct purification of ERAs (urinary and recombinant human EPO, Darbepoetin, EPO-Fc, CERA) from human urine. The method applies magnetic beads and needs no covalent immobilization of the capture antibody. It requires only 10 mL of urine, 1 μg of anti-EPO antibody, and 25 μL of bead slurry.

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Heteroleptic An (An = U, Np) chlorido-ketoenaminate complexes of the type [AnCl(TFB-BuA)(THF)] ( type: , ; TFB-BuA = 4-(-butylamino)-1,1,1-trifluorobut-3-en-2-one) and the homoleptic Np heteroarylalkenolate complexes [Np(PyTFP)] (, PyTFP = 1-(pyridin-2-yl)-3,3,3-trifluoroprop-1-en-2-ol) and [Np(DMOTFP)] (, DMOTFP = 1-(4,5-dimethyloxazol-2-yl)-3,3,3-trifluoroprop-1-en-2-ol) were synthesized and characterized (SC-XRD, NMR, Vis-NIR, MS). While their solid-state structures compare well to those of their uranium analogues, the behavior in solution showed significant differences. The binding motif of the DMOTFP ligand in complex can change to form two different complex isomers, as seen by paramagnetic chemical shifts in NMR experiments.

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Introduction: Outpatient cancer counseling centers (OCCs) are important social work facilities that provide support for cancer survivors who have psychosocial and sociolegal challenges. This paper explores clinical and sociodemographic characteristics, psychosocial burden as well as access routes of clients in OCCs seeking work-related counseling.

Methods: Between May 2022 and December 2023, data were collected in 19 OCCs, using questionnaires and documentation by counselors.

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Efficient visual word recognition presumably relies on orthographic prediction error (oPE) representations. On the basis of a transparent neurocognitive computational model rooted in the principles of the predictive coding framework, we postulated that readers optimize their percept by removing redundant visual signals, allowing them to focus on the informative aspects of the sensory input (i.e.

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