36,121 results match your criteria: "University Of Leeds[Affiliation]"

Paracrine role of endothelial IGF-1 receptor in depot-specific adipose tissue adaptation in male mice.

Nat Commun

January 2025

Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, UK.

During recent decades, changes in lifestyle have led to widespread nutritional obesity and its related complications. Remodelling adipose tissue as a therapeutic goal for obesity and its complications has attracted much attention and continues to be actively explored. The endothelium lines all blood vessels and is close to all cells, including adipocytes.

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Individuals with general anxiety disorder (GAD) have an impaired future-oriented processing and altered reward perception, which might involve the ventromedial prefrontal cortex (vmPFC) and dorsolateral prefrontal cortex (dlPFC). Twenty-nine adults with GAD performed the balloon analogue risk-taking task (BART) and delay discounting task (DDT) during five sessions of transcranial direct current stimulation (tDCS) with different stimulation conditions. The stimulation conditions were: anodal dlPFC (F3)/cathodal vmPFC (Fp2), anodal vmPFC (Fp2)/cathodal dlPFC (F3), anodal dlPFC (F3)/cathodal right shoulder, anodal vmPFC (Fp2)/cathodal left shoulder, and sham stimulation.

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Participatory design places a strong emphasis on human agency, user perspectives and democratic ideals of inclusivity and empowerment, and is therefore often associated with humanist principles and values. In contrast, critical posthumanism questions key humanist assumptions about the centred and singular nature of the 'human condition'. Instead, posthumanism points to the evolving and diverse lived experiences of people and how these are transformed by (and are transforming of) culture, environment and technology.

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Solar geoengineering research faces geopolitical deadlock.

Science

January 2025

School of Politics and International Studies, University of Leeds, Leeds, UK.

The permissive "science first" approach has failed, but a nondeployment deal might yet enable responsible research.

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Article Synopsis
  • Strigolactones (SLs) are important plant signaling compounds that help coordinate growth between roots and shoots.
  • The study investigates how SLs affect the climbing behavior of pea plants by analyzing the movement of their tendrils through 3D kinematical methods.
  • Results show that mutant pea plants lacking SLs exhibit disoriented and less energetic climbing behaviors, highlighting the significance of SLs in plant behavior and communication.
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Getting school-provided meals to the table: an international multiple-case study of school food service.

Health Promot Int

December 2024

Flinders University, College of Nursing and Health Sciences, Caring Futures Institute, Bedford Park, GPO Box 2100, Tarntanya, Adelaide, South Australia 5001, Australia.

A school food service, which is the way children access food during the school day, is one of the many aspects in creating a health-promoting school environment. School-provided meal services differ greatly, depending on the country, region and school contexts, however, there is limited understanding of the diverse meal delivery within these settings. Therefore, the aim of this study was to understand different school-provided meal systems across different countries and contexts.

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Background: Researchers may often find it challenging to gather data with underserved populations, even when using traditional qualitative methods. They may also be at risk of further entrenching the hegemony of the dominant narrative, silencing participants' experiences and further marginalising and excluding those most in need. Timelines and other creative methods are useful, sensitive tools that combine flexibility and malleability with an ethical appeal, such as feminist ethics of care.

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Comparative evaluation of intraoral scanners and a spectrophotometer for percent correct shade identification in clinical dentistry.

Clin Oral Investig

January 2025

Center for Dental Medicine, Department of Operative Dentistry and Periodontology, Faculty of Medicine and Medical Center, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg im Breisgau, Germany.

Objectives: The study aimed to assess the percent correct shade identification of four intraoral scanners (IOS) and a spectrophotometer, focusing on how reliably each device selects the correct tooth shade compared to a visual observer's selection. The research question addresses how much clinicians can trust the device-selected shade without visual verification.

Materials And Methods: Sixteen participants with natural, unrestored teeth were included.

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Background: Healthcare organisations risk harming patients and their families twofold. First, through the physical, emotional and/or financial harm caused by safety incidents themselves, and second, through the organisational response to incidents. The former is well-researched and targeted by interventions.

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Evolution of SARS-CoV-2 spike trimers towards optimized heparan sulfate cross-linking and inter-chain mobility.

Sci Rep

December 2024

Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Waldeyerstrasse 15, D-48149, Münster, Germany.

The heparan sulfate (HS)-rich extracellular matrix (ECM) serves as an initial interaction site for the homotrimeric spike (S) protein of SARS-CoV-2 to facilitate subsequent docking to angiotensin-converting enzyme 2 (ACE2) receptors and cellular infection. More recent variants, notably Omicron, have evolved by swapping several amino acids to positively charged residues to enhance the interaction of the S-protein trimer with the negatively charged HS. However, these enhanced interactions may reduce Omicron's ability to move through the HS-rich ECM to effectively find ACE2 receptors and infect cells, raising the question of how to mechanistically explain HS-associated viral movement.

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Copper complexes induce haem oxygenase-1 (HMOX1) and cause apoptotic cell death in pancreatic cancer cells.

J Inorg Biochem

March 2025

Division of Pharmacology, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown 2193, South Africa. Electronic address:

Pancreatic ductal adenocarcinoma (PDAC), the most common pancreatic malignancy, has a dismal 5-year survival rate, making palliative chemotherapy the only treatment option. Targeted therapy has limited efficacy in PDAC, underscoring the need for novel therapeutic approaches. The inducible stress-response protein, haem oxygenase-1 (HMOX1), has been implicated in treatment failure in PDAC.

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Cardiomyocyte-specific Piezo1 deficiency mitigates ischemia-reperfusion injury by preserving mitochondrial homeostasis.

Redox Biol

February 2025

Innovation Research Center, Shandong University of Traditional Chinese Medicine, Jinan, 250307, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK. Electronic address:

Ca overload and mitochondrial dysfunction play crucial roles in myocardial ischemia-reperfusion (I/R) injury. Piezo1, a mechanosensitive cation channel, is essential for intracellular Ca homeostasis. The objective of this research was to explore the effects of Piezo1 on mitochondrial function during myocardial I/R injury.

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With a disproportionate burden of chronic diseases and severe shortage of health workers in sub-Saharan Africa, the region implicitly relies on informal caregivers (ICGs) to support the patients both within and outside the health facilities. The aim of this review is to systematically summarise evidence on the health and economic impact of caregiving on informal caregivers of patients with chronic diseases in sub-Saharan Africa. Medline (Ovid), CINAHL (EBSCOhost), PsycINFO (Ovid), Embase (Ovid), Global Health, and Web of Science databases were systematically searched to identify original articles that considered the economic and/or health impacts of caregiving in sub-Saharan Africa.

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This paper presents results from a grounded theory study of rewilding aims, addressing calls for broad scale studies of rewilding to contribute to the development of guidelines. The grounded theory draws from a broad set of data sourced from rewilding organizations, case studies, and research. Expressions from the data relating to rewilding aims and outcomes were coded.

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Myocardial ischaemia following COVID-19: a cardiovascular magnetic resonance study.

Int J Cardiovasc Imaging

December 2024

Institute of Cardiovascular and Metabolic Medicine, University of Leeds, and Leeds Teaching Hospitals NHS Trust, Leeds, UK.

The pathophysiology of myocardial injury following COVID-19 remains uncertain. COVID-HEART was a prospective, multicentre study utilising cardiovascular magnetic resonance (CMR) to characterise COVID-related myocardial injury. In this pre-specified analysis, the objectives were to examine (1) the frequency of myocardial ischaemia following COVID-19, and (2) the association between ischaemia and myocardial injury.

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There is limited knowledge about the size of the UK dog population. This makes it difficult to reliably monitor population dynamics and management. A repeatable method of measuring the UK dog population, including owned and unowned dogs i.

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Are Oral Somatostatin Receptor Ligands Moving Closer to Becoming a Reality?

Clin Endocrinol (Oxf)

December 2024

Departments of Endocrinology, Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospital NHS Trust, Leeds, UK.

With the current therapeutic modalities available to endocrinologists, control of GH and IGF-I is now possible in almost all patients with acromegaly with multi-modality therapy. Despite biochemical control of GH and IGF-I, patients with acromegaly continue to experience impaired quality of life. Although there are likely multiple factors contributing to this dissatisfaction with current medical therapies, in particular the widely utilised injectable long-acting somatostatin receptor ligands (iSRL), is a contributor.

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This paper presents the Cadenza Woodwind Dataset. This publicly available data is synthesised audio for woodwind quartets including renderings of each instrument in isolation. The data was created to be used as training data within Cadenza's second open machine learning challenge (CAD2) for the task on rebalancing classical music ensembles.

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Introduction: Antimicrobial resistance (AMR) is a global problem and is especially threatening for low-and-middle income countries like Bangladesh. The COSTAR (Community-led Solutions to Antimicrobial Resistance) project includes a Randomised Control Trial (RCT) which aims to evaluate the effectiveness of the Community Dialog Approach (CDA) to improve levels of correct and appropriate knowledge and reported practice about antibiotics, antibiotic use, and antibiotic resistance (ABR) from a One Health perspective, among adult community members in 5 selected sub-districts of Cumilla. The CDA is a community engagement approach involving community members in active discussions also known as Community Dialogs (CD), run by local facilitators.

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Background: Regulations restricting the promotion of some less-healthy products high in fat, sugar, or salt (HFSS) within "restricted areas" (RAs) of supermarkets came into force in October 2022 in England.

Objectives: To evaluate the prevalence of HFSS products and front-of-pack nutrition labeling (FOPNL) characteristics of foods sold within RAs in a sample of supermarket stores.

Methods: A cross-sectional survey of products in RAs in 3 supermarkets was undertaken from November 2022 to February 2023 using photographs, recording the display of FOPNL.

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Exploring a novel outcome measure of symptom progression in knee osteoarthritis utilizing a large randomized trial.

Osteoarthritis Cartilage

December 2024

Formation Bio, Inc., Research and Development, New York City, NY, USA; Caduceus Biomedical Consulting, LLC, Durham, NC, USA; Duke University School of Medicine, Department of Medicine, Division of Rheumatology, Durham, NC, USA.

Objectives: Explore a newly defined composite measure of symptom progression for knee osteoarthritis (KOA) in a large, randomized study of a potential disease-modifying osteoarthritis drug (DMOAD).

Design: Using longitudinal KOA studies, a potential composite endpoint of time to symptom progression was defined as the first occurrence of worsening of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain of ≥10 points with no improvement (≤9 point decrease) in WOMAC Function (0-100 scale). A post hoc analysis explored discrimination and association with structural outcomes in the sprifermin FORWARD trial through Years 3 and 5.

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Longitudinal Relations Between Adolescent Self-Esteem and Mental Health Concerns: The Mediation of Self-Control and Moderation of Parental Autonomy Support.

J Adolesc

December 2024

Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education (Beijing Normal University), Faculty of Psychology, Beijing Normal University, Beijing, China.

Introduction: Adolescents' self-esteem is often associated with their mental health, and believed to be a protective factor against depression, anxiety, and stress. However, the underlying mechanisms of this relationship warrant further exploration. Employing a longitudinal design, this study investigates the relations between self-esteem and mental health in adolescents, considering the mediating influence of self-control and the moderating effect of parental autonomy support.

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In the era of the Internet of Things (IoT), the transmission of medical reports in the form of scan images for collaborative diagnosis is vital for any telemedicine network. In this context, ensuring secure transmission and communication is necessary to protect medical data to maintain privacy. To address such privacy concerns and secure medical images against cyberattacks, this research presents a robust hybrid encryption framework that integrates quantum, and classical cryptographic methods.

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Topological Insulators (TIs) are promising platforms for Quantum Technology due to their topologically protected surface states (TSS). Plasmonic excitations in TIs are especially interesting both as a method of characterisation for TI heterostructures, and as potential routes to couple optical and spin signals in low-loss devices. Since the electrical properties of the TI surface are critical, tuning TI surfaces is a vital step in developing TI structures that can be applied in real world plasmonic devices.

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