141,194 results match your criteria: "University of Amsterdam; and HIV Monitoring Foundation P.R.[Affiliation]"

Pathological diagnosis of central nervous system tumours in adults: what's new?

Pathology

December 2024

Department of Pathology, Amsterdam University Medical Centers/VUmc, Amsterdam, The Netherlands; Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.

In the course of the last decade, the pathological diagnosis of many tumours of the central nervous system (CNS) has transitioned from a purely histological to a combined histological and molecular approach, resulting in a more precise 'histomolecular diagnosis'. Unfortunately, translation of this refinement in CNS tumour diagnostics into more effective treatment strategies is lagging behind. There is hope though that incorporating the assessment of predictive markers in the pathological evaluation of CNS tumours will help to improve this situation.

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The Role of the LINC Complex in Ageing and Microgravity.

Mech Ageing Dev

January 2025

Department Oral & Maxillofacial Surgery/Pathology, Amsterdam Movement Sciences & Amsterdam Bone Center (ABC), Amsterdam University Medical Center location Vrije Universiteit Amsterdam & Academic Center for Dentistry Amsterdam (ACTA), Gustav Mahlerlaan 3004, 1081 LA Amsterdam, the Netherlands; TEC-MMG-LIS Lab, European Space Agency (ESA), European Space Research and Technology Center (ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, the Netherlands.

The Linker of Nucleoskeleton and Cytoskeleton (LINC) complex plays a crucial role in connecting the nuclear envelope to the cytoskeleton, providing structural support to the nucleus and facilitating mechanical signaling between the extracellular environment and the nucleus. Research in mechanobiology onboard the International Space Station (ISS) and in simulated microgravity (SMG) highlight the importance of gravity in functional mechanotransduction. Although the altered gravity research regarding mechanobiology has been greatly focused on the cytoskeleton and the extracellular matrix (ECM), recent research demonstrates that SMG also induces changes in nuclear mechanics and gene expression patterns, which have been shown to be LINC complex dependent.

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The (in)dependence of single-cell data inferences on model constructs.

Forensic Sci Int Genet

January 2025

Center for Computational and Integrative Biology, Rutgers University, Camden, NJ 08102, USA; Department of Computer Science,  Rutgers University, Camden, NJ 08102, USA.

Recent developments in single-cell analysis have revolutionized basic research and have garnered the attention of the forensic domain. Though single-cell analysis is not new to forensics, the ways in which these data can be generated and interpreted are. Modern interpretation strategies report likelihood ratios that rely on a model of the world that is a simplification of it.

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Autologous hematopoietic stem cell transplantation is used to restore bone marrow function after high-dose chemotherapy. For apheresis, granulocyte colony-stimulating factor (G-CSF) is standard of care, but obtaining sufficient stem cells can be challenging. Other mobilization agents include plerixafor and PEGylated G-CSF (PEG-G-CSF).

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A personal perspective on the association between bruxism and dental occlusion.

Cranio

January 2025

Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.

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Effect of the Electrolyte on the Oxygen Reduction Reaction with PCN-224(Co).

ChemSusChem

January 2025

Leiden University: Universiteit Leiden, Leiden Institute of Chemistry, Einsteinweg 55, Room number EE4.19, 2333 CC, Leiden, NETHERLANDS, KINGDOM OF THE.

Electrocatalysis in metal-organic frameworks is an interplay between the diffusion of charges, the intrinsic catalytic rate, and the mass-transport of reactants through the pores. Here a systematic study is carried out to investigate the role of the electrolyte nature and concentration on the oxygen reduction reaction (ORR) with the PCN-224(Co) MOF in aqueous electrolyte. It was found that the ORR activity is slightly influenced by the nature of the ions in solution, providing that the ionic strength is high enough to minimize the resistivity during the measurement.

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Background: Calf muscle weakness is a common symptom in slowly progressive neuromuscular disorders that lead to walking problems like instability and increased walking effort. The mainstay of treatment to improve walking in this population is the provision of ankle-foot-orthoses (AFOs). Since we are not aware of an up-to-date and complete overview of the effects of AFOs used for calf muscle weakness in slowly progressive neuromuscular disorders, we reviewed the evidence for the effectiveness of AFOs to improve walking in this patient group, in order to support clinical decision-making.

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Reevaluating Anti-Inflammatory Therapy: Targeting Senescence to Balance Anti-Cancer Efficacy and Vascular Disease.

Arterioscler Thromb Vasc Biol

January 2025

Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston. (B.C.-C., N.A.V.G., N.L.P., L.P.E., V.S.K.S., A.M.O., J.L., G.M., O.H., A.D., S.W.Y., C.A.I., K.C.O.M., S. Kotla, J.-i.A.).

Modulating immune function is a critical strategy in cancer and atherosclerosis treatments. For cancer, boosting or maintaining the immune system is crucial to prevent tumor growth. However, in vascular disease, mitigating immune responses can decrease inflammation and slow atherosclerosis progression.

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Background: Schistosomiasis is caused by infection with parasitic worms and affects more than 250 million people globally. The detection of schistosome derived circulating cathodic and anodic antigens (CCA and CAA) has proven highly valuable for detecting active infections, causing both intestinal and urinary schistosomiasis.

Aim: The combined detection of CCA and CAA was explored to improve accuracy in detecting infections.

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Background: Female Lynch syndrome carriers have an increased risk of developing endometrial cancer. Regardless, research on endometrial carcinoma tumorigenesis is scarce and no uniform, evidence-based gynaecological management guidelines exist. We therefore described gynaecological surveillance and surgery outcomes in a nation-wide Lynch syndrome cohort.

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Light interacts with gas bubbles in various ways, potentially leading to photon losses in gas-liquid photochemical applications. Given that light is a valuable 'reagent', understanding these losses is crucial for optimizing reactor efficiency. In this study, we address the challenge of quantifying these interactions by implementing a method that separately determines the photon flux and utilizes actinometric experiments to determine the effective optical path length, a key descriptor of photon absorption.

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Background: Intellectual disability organisations in the Netherlands are seeking to improve clients' quality of care by implementing methods that reduce involuntary care. This study described insights gained from sharing tacit and experiential implementation knowledge in Communities of Practice (CoP).

Method: In a participatory research, managers, policymakers, experts-by-experience, support staff, and researchers participated in two CoP.

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Background: Parents' tacit knowledge plays an important role in the care of persons with profound intellectual and multiple disabilities (PIMD). As little is known about its nature and use, we aimed to explore this parental tacit knowledge.

Method: We conducted semi-structured interviews with parents ( = 11) about their tacit knowledge of their child, based upon video recordings they made of their child's behaviour, and analysed the data thematically.

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Parasitic helminths secrete extracellular vesicles (EVs) into their host tissues to modulate immune responses, but the underlying mechanisms are poorly understood. We demonstrate that Ascaris EVs are efficiently internalised by monocytes in human peripheral blood mononuclear cells and increase the percentage of classical monocytes. Furthermore, EV treatment of monocytes induced a novel anti-inflammatory phenotype characterised by CD14, CD16, CC chemokine receptor 2 (CCR2) and programmed death-ligand 1 (PD-L1) cells.

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Time series analysis is increasingly popular across scientific domains. A key concept in time series analysis is stationarity, the stability of statistical properties of a time series. Understanding stationarity is crucial to addressing frequent issues in time series analysis such as the consequences of failing to model non-stationarity, how to determine the mechanisms generating non-stationarity, and consequently how to model those mechanisms (i.

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Photodynamic therapy (PDT) is a treatment modality clinically approved for several oncologic indications, including esophageal and endobronchial cancers, precancerous conditions including Barrett's esophagus and actinic keratosis, and benign conditions like age-related macular degeneration. While it is currently clinically underused, PDT is an area of significant research interest. Because PDT relies on the absorption of light energy by intrinsic or administered absorbers, the dosimetric quantity of interest is the absorbed energy per unit mass of tissue, proportional to the fluence rate of light in tissue.

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Background: Prenatal development of autonomic innervation of sinus venosus-related structures might be related to atrial arrhythmias later in life. Most of the pioneering studies providing embryological background are conducted in animal models. To date, a detailed comparison with the human cardiac autonomic nervous system (cANS) is lacking.

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Background: Patellofemoral pain (PFP) is a common musculoskeletal disorder resulting in anterior knee pain. Physiotherapy is the current standard treatment, while surgical intervention (tibial tubercle transfer [TTT]) is reserved for chronic cases when nonoperative treatment has failed. TTT can result in clinically meaningful improvement in patients with patellofemoral maltracking without instability.

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Background: Randomized controlled trials (RCTs) have failed to demonstrate the beneficial effects of the pharmacological treatment of patent ductus arteriosus (PDA) in preterm infants. We conducted a Bayesian model averaged (BMA) meta-analysis of RCTs comparing the pharmacological treatment of PDA with placebo or expectant treatment.

Methods: We searched for RCTs including infants with gestational age (GA) ≤ 32 weeks and with a rate of open-label treatment of less than 25% in the control arm.

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