106,049 results match your criteria: "Imperial College London & Biomedical Research Unit[Affiliation]"
BMC Public Health
January 2025
Grounded Research Hub, Rotherham Doncaster and South Humber NHS Foundation Trust, Doncaster, DN4 8QN, UK.
Background: Households in areas of socio-economic deprivation are more likely to consume diets low in fruit and vegetables. Fresh Street is a place-based fruit and vegetable voucher scheme with vouchers redeemable with local independent (non-supermarket) vendors. Paper vouchers are offered to all households in a geographical area regardless of household type, size, or income with no requirement to demonstrate need.
View Article and Find Full Text PDFNat Med
January 2025
Data Science, Novo Nordisk A/S, Søborg, Denmark.
Obesity and type 2 diabetes are prevalent chronic diseases effectively managed by semaglutide. Here we studied the effects of semaglutide on the circulating proteome using baseline and end-of-treatment serum samples from two phase 3 trials in participants with overweight or obesity, with or without diabetes: STEP 1 (n = 1,311) and STEP 2 (n = 645). We identified evidence supporting broad effects of semaglutide, implicating processes related to body weight regulation, glycemic control, lipid metabolism and inflammatory pathways.
View Article and Find Full Text PDFSci Data
January 2025
IBM Research, Hursley, SO21 2JN, UK.
A significant challenge in computational chemistry is developing approximations that accelerate ab initio methods while preserving accuracy. Machine learning interatomic potentials (MLIPs) have emerged as a promising solution for constructing atomistic potentials that can be transferred across different molecular and crystalline systems. Most MLIPs are trained only on energies and forces in vacuum, while an improved description of the potential energy surface could be achieved by including the curvature of the potential energy surface.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Materials, University of Oxford, Parks Road, Oxford, UK.
The Selective Metallization Technique shows promise for roll-to-roll in-line patterning of flexible electronics using evaporated metals, but challenges arise when applied to sputtering functional materials. This study overcomes these challenges with simultaneous sputtering of Bi-Sb-Te and evaporation of metal (Ag or Cu) for thermoelectric layers when using Selective Metallization Technique. Large-scale manufacturing is demonstrated through roll-to-roll processing of a 0.
View Article and Find Full Text PDFIntroduction: For total hip arthroplasty (THA) to be successful, surgeons need to make several decisions ranging from implant choice to impaction force. It is unclear, however, whether and how bone quality affects surgeon's decision-making and how surgeons evaluate bone quality.
Objectives: This inductive/deductive qualitative hybrid study aims to explore the impact of bone quality on the decision-making of surgeons performing elective primary THA.
Aims: This study aims to define a set of family-centred core outcomes for infants undergoing brace treatment to facilitate consistent reporting for future high-quality research.
Methods: Family-centred outcomes will be identified through a literature review and a scoping survey involving key stakeholders, including parents, healthcare professionals, and researchers. These outcomes will then be rated for their perceived importance in a two-stage modified Delphi process with the same stakeholders.
Am J Hum Genet
January 2025
Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
Each human genome has approximately 5 million DNA variants. Even for complete loss-of-function variants causing inherited, monogenic diseases, current understanding based on gene-specific molecular function does not adequately predict variability observed between people with identical mutations or fluctuating disease trajectories. We present a parallel paradigm for loss-of-function variants based on broader consequences to the cell when aberrant polypeptide chains of amino acids are translated from mutant RNA to generate mutated proteins.
View Article and Find Full Text PDFEBioMedicine
January 2025
Imperial College London, Department of Infectious Disease, UK. Electronic address:
Background: We report findings from an experimental medicine study of rationally designed prefusion stabilised native-like HIV envelope glycoprotein (Env) immunogens, representative of global circulating strains, delivered by sequential intramuscular injection.
Methods: Healthy adult volunteers were enrolled into one of five groups (A to E) each receiving a different schedule of one of two consensus Env immunogens (ConM SOSIP, ConS UFO, either unmodified or stabilised by chemical cross-linking, followed by a boost with two mosaic Env immunogens (Mos3.1 and Mos3.
Ecotoxicol Environ Saf
January 2025
Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China; School of the Built Environment, University of Reading, Reading RG6 6DB, UK. Electronic address:
Environmental pollutants including ultrafine particulate matter (UFPs) and adverse meteorological conditions pose significant public health impacts, particularly affecting respiratory health. This study aims to elucidate the synergistic effects of cold-humid conditions and UFPs exposure on respiratory health, utilizing Carbon Black Nanoparticles (CB-NPs) as surrogates for UFPs. Through comprehensive lung function tests, histopathological examinations, and biomarker analyses, this research focuses on the modulation of oxidative stress signaling pathways and NF-κB activation.
View Article and Find Full Text PDFPhys Rev Lett
December 2024
Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
A search for violation of the charge-parity (CP) symmetry in the D^{+}→K^{-}K^{+}π^{+} decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4 fb^{-1}, collected at a center-of-mass energy of 13 TeV with the LHCb detector. A novel model-independent technique is used to compare the D^{+} and D^{-} phase-space distributions, with instrumental asymmetries subtracted using the D_{s}^{+}→K^{-}K^{+}π^{+} decay as a control channel.
View Article and Find Full Text PDFSci Adv
January 2025
Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Hyperpolarization-activated and cyclic nucleotide-gated (HCN) ion channels are members of the cyclic nucleotide-binding family and are crucial for regulating cellular automaticity in many excitable cells. HCN channel activation contributes to pain perception, and propofol, a widely used anesthetic, acts as an analgesic by inhibiting the voltage-dependent activity of HCN channels. However, the molecular determinants of propofol action on HCN channels remain unknown.
View Article and Find Full Text PDFRheumatology (Oxford)
January 2025
Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom.
Objectives: Systemic sclerosis (SSc)-interstitial lung disease (ILD) is one of the leading causes of mortality in SSc. Data from randomised controlled trials (RCTs) supports rituximab and tocilizumab monotherapy but there is limited data regarding their use for those who fail standard immunomodulatory therapies.
Methods: SSc patients treated with rituximab or tocilizumab were retrospectively identified in a single centre cohort.
Qual Life Res
January 2025
MRL, Merck & Co., Inc., Rahway, NJ, USA.
Purpose: Cost-utility analyses examining the value of new vaccines for pneumococcal disease will require health state utilities as inputs. Existing utilities for pneumococcal infections in young children are limited. The purpose of this study was to estimate health state utilities associated with pneumococcal infections in young children.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Imperial College London, London, United Kingdom.
Background: Neuroinflammation is a key component of Alzheimer's Disease (AD) pathology. Triggering receptor expressed on myeloid cells 2 (TREM2) is crucial to microglial involvement in AD, mediating trem2-dependent activation and Disease-Associated Microglia (DAM) polarization. However, GWAS revealed that loss-of-function mutations of its encoding gene are an important risk factor for AD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Imperial College London, London, United Kingdom.
Background: Microglial reactivity and neuroinflammation are crucial pathological processes in Alzheimer's Disease (AD). Several attempts to develop a treatment by supressing the immune response in AD have been made, yet these yielded very limited results. Recent studies suggest contrasting effects of microglial reactivity, indicating a biphasic response with both beneficial and deleterious effects at distinct stages of AD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom.
Background: Dementia-related biomarkers can detect pathology years before clinical diagnostic criteria are met. Understanding the relationship between biomarkers and early cognitive changes is crucial as disease-modifying therapies may have maximum benefits when delivered early. We aimed to demonstrate the utility of remote computerised cognitive tests in a large cohort of cognitively normal older individuals, comparing these to standard in-person assessments and investigating their associations with biomarkers.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Imperial College London, London, United Kingdom.
Background: Pathological alterations in Alzheimer's disease (AD) begin several years before the onset of symptoms. Grey matter mean diffusivity (MD) may be used as a measure of early grey matter damage in AD as it reflects the breakdown of microstructural barriers, which precede volumetric changes and affect cognitive function. In this study, we investigated the changes in MD early on in the disease trajectory, and relate them to the amyloid and tau deposition.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Gertrude H. Sergievsky Center, Taub Institute for Research on the Aging Brain, Departments of Neurology, Psychiatry, and Epidemiology, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Background: Transcultural adaptations of brief cognitive screening tools (BCTs) involve the development of alternate versions that are psychometrically equivalent to the original, while being linguistically and culturally adapted to a new sociodemographic context. The RUDAS (Rowland Universal Dementia Assessment Scale) is less affected by culture, language, and education compared with other BCTs. However, several studies have reported an effect of education on RUDAS scores.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
University of Cape Town, Cape Town, South Africa.
Background: Accurate assessment of cognitive impairment in low-income settings may require consideration of complex psychosocial variables (PV). Failure to consider the association of PV with biological factors, such as HIV, could lead to false classification of cognitive impairment. We investigated the impact of PV on cognitive performance in people with HIV (PWH) and without in a low-income area of Cape Town, South Africa.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Imperial College London, London, United Kingdom.
Background: Cortical atrophy in Alzheimer's disease (AD) is typically thought to commence in the medial temporal lobe. However, growing evidence suggests that this may not be true for all patients. Here, we explored atrophy patterns in patients with mild cognitive impairment (MCI) and AD and whether atrophy patterns are associated with specific clinical and neuropathological outcomes.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Imperial College London, Department of Brain Sciences, London, United Kingdom.
Background: Cognitive assessments are essential for detecting and monitoring cognitive changes in neurological populations. Compared to standard pen-and-paper tests, online cognitive tasks offer a more accessible, scalable, repeatable and cost-effective approach to assessment. Cognitron is an online cognitive assessment platform with previously demonstrated validity and reliability (1).
View Article and Find Full Text PDFPediatr Crit Care Med
January 2025
Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom.
Objectives: To assess characteristics and outcomes of children with suspected or confirmed infection requiring emergency transport and PICU admission and to explore the association between the 2024 Phoenix Sepsis Score (PSS) criteria and mortality.
Design: Retrospective analysis of curated data from a 2014-2016 multicenter cohort study.
Setting: PICU admission following emergency transport in South East England, United Kingdom, from April 2014 to December 2016.
IUCrJ
January 2025
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz 90-363, Poland.
Crystal structure determination is a crucial aspect of almost every branch of the chemical sciences, bringing us closer to understanding crystallization, polymorphism, phase transitions, and the relationship between a structure and its physicochemical and functional properties. Unfortunately, many molecules notoriously crystallize as microcrystalline powders, providing a significant challenge in establishing their structures. In this work, we describe the crystal structure determination of three elusive polymorphs of the anti-inflammatory drug meloxicam (MLX) using three approaches, of which only one was successful for each crystal phase.
View Article and Find Full Text PDFAllergy
January 2025
Department of Respiratory Sciences, College of Life Sciences, and NIHR Biomedical Research Centre (Respiratory Theme), Glenfield Hospital, Leicester, UK.
Background: Airway remodelling is a feature of severe asthma with airway epithelial damage observed frequently. We evaluated the role of WNT5a and TGF-β in asthmatic airway biopsies and in sputum and bronchial brushings assessed their role in remodelling.
Methods: WNT5a and TGF-β protein expression were assessed in the lamina propria epithelium of people with asthma (GINA 1-3, n-8 and GINA 4-5, n-14) and healthy subjects (n-9), alongside relevant remodelling markers.
Npj Viruses
December 2024
Department of Infectious Disease, Imperial College London, London, SW7 2AZ UK.
Maternal immunisation against respiratory viruses provides protection in early life, but as antibodies wane, there can be a gap in coverage. This immunity gap might be filled by inducing pathogen-specific lung tissue-resident T cells (TRM). However, the neonatal mouse lung has a different inflammatory environment to the adult lung which affects T cell recruitment.
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