28 results match your criteria: "United Kingdom (S.J.G.); and LSU Health Science Center[Affiliation]"

Factors Associated With Early Motor Function Trajectories in DMD After Glucocorticoid Initiation: Post Hoc Analysis of the FOR-DMD Trial.

Neurology

May 2024

From the John Walton Muscular Dystrophy Research Centre (M.S., A.G.M., M.G.), Clinical and Translational Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trusts, United Kingdom; Department of Biostatistics and Computational Biology (M.P.M.); Department of Neurology, University of Rochester Medical Centre, NY; Department of Health Sciences (J.B., K.R.A.), University of Leicester, United Kingdom; Department of Physical Medicine and Rehabilitation (C.M.M.), University of California, Davis, Sacramento; and Department of Neurology (W.B.M., S.J.G., R.C.G.), University of Rochester Medical Centre, NY.

Background And Objectives: Clinical trials in Duchenne muscular dystrophy (DMD) require 3-6 months of stable glucocorticoids, and the primary outcome is explored at 48-52 weeks. The factors that influence the clinical outcome assessment (COA) trajectories soon after glucocorticoid initiation are relevant for the design and analysis of clinical trials of novel drugs. We describe early COA trajectories, associated factors, and the time from glucocorticoid initiation to COA peak.

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The feasibility of population screening for paroxysmal atrial fibrillation using hand-held electrocardiogram devices.

Europace

March 2024

Primary Care Unit, Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, 2 Worts' Causeway, Cambridge CB1 8RN, UK.

Aims: There are few data on the feasibility of population screening for paroxysmal atrial fibrillation (AF) using hand-held electrocardiogram (ECG) devices outside a specialist setting or in people over the age of 75. We investigated the feasibility of screening when conducted without face-to-face contact ('remote') or via in-person appointments in primary care and explored impact of age on screening outcomes.

Methods And Results: People aged ≥65 years from 13 general practices in England participated in screening during 2019-20.

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Article Synopsis
  • Existing antiarrhythmic drugs have limitations, and a new drug called AP30663, which targets K2 channels, showed promise in animal studies for treating atrial fibrillation (AF), but its effectiveness in humans was not yet known.
  • A phase 2 trial was conducted with patients experiencing AF for 7 days or less, comparing two doses of AP30663 to a placebo, but the trial had to be halted due to slow enrollment during the COVID-19 pandemic.
  • Results indicated that both doses of AP30663 led to a significant percentage of patients achieving cardioversion from AF to normal sinus rhythm within 90 minutes, with no serious adverse events linked to the drug, suggesting it could be a potential treatment
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Conventional randomized controlled trials (RCTs) can be expensive, time intensive, and complex to conduct. Trial recruitment, participation, and data collection can burden participants and research personnel. In the past two decades, there have been rapid technological advances and an exponential growth in digitized healthcare data.

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Inhibition of Intimal Thickening By PRH (Proline-Rich Homeodomain) in Mice.

Arterioscler Thromb Vasc Biol

March 2023

Bristol Heart Institute, University of Bristol, UK (L.M.R., H.W., K.W., A.F., Z.L., J.L.J., S.J.G.).

Background: Late vein graft failure is caused by intimal thickening resulting from endothelial cell (EC) damage and inflammation which promotes vascular smooth muscle cell (VSMC) dedifferentiation, migration, and proliferation. Nonphosphorylatable PRH (proline-rich homeodomain) S163C:S177C offers enhanced stability and sustained antimitotic effect. Therefore, we investigated whether adenovirus-delivered PRH S163C:S177C protein attenuates intimal thickening via VSMC phenotype modification without detrimental effects on ECs.

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Clonal haematopoiesis involves the expansion of certain blood cell lineages and has been associated with ageing and adverse health outcomes. Here we use exome sequence data on 628,388 individuals to identify 40,208 carriers of clonal haematopoiesis of indeterminate potential (CHIP). Using genome-wide and exome-wide association analyses, we identify 24 loci (21 of which are novel) where germline genetic variation influences predisposition to CHIP, including missense variants in the lymphocytic antigen coding gene LY75, which are associated with reduced incidence of CHIP.

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Controlled Bioactive Delivery Using Degradable Electroactive Polymers.

Biomacromolecules

July 2022

Department of Chemistry, Faculty of Science and Technology, Lancaster University, Bailrigg, Lancaster LA1 4YB, U.K.

Biomaterials capable of precisely controlling the delivery of agrochemicals/biologics/drugs/fragrances have significant markets in the agriscience/healthcare industries. Here, we report the development of degradable electroactive polymers and their application for the controlled delivery of a clinically relevant drug (the anti-inflammatory dexamethasone phosphate, DMP). Electroactive copolymers composed of blocks of polycaprolactone (PCL) and naturally occurring electroactive pyrrole oligomers (e.

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Introduction: On average, aspects of mental health improve following behavioural weight management programmes, yet this is not the case for all participants. It is important to identify those at risk of harm to provide more effective psychological support. We aimed to identify participant characteristics associated with changes in depression and anxiety in participants of a behavioural weight management programme.

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Introduction: Adults with overweight and obesity are vulnerable to weight gain and mental health deterioration during the COVID-19 pandemic. We developed a web-based, guided self-help intervention based on Acceptance and Commitment Therapy (ACT) that aims to support adults with overweight and obesity to prevent weight gain by helping them to manage their eating behaviours, be more physically active, and protect their emotional wellbeing ("SWiM-C"). SWiM-C is a guided self-help programme using non-specialist guides to enhance scalability and population reach while minimizing cost.

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Artificial protein cages have great potential in a number of areas including cargo capture and delivery and as artificial vaccines. Here, we investigate an artificial protein cage whose assembly is triggered by gold nanoparticles. Using biochemical and biophysical methods we were able to determine both the mechanical properties and the gross compositional features of the cage which, combined with mathematical models and biophysical data, allowed the structure of the cage to be predicted.

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Article Synopsis
  • Heart failure RCTs have low representation of BIPOC, with only 37.9% reporting race and ethnicity data and 18.7% of participants being BIPOC.
  • There was a significant increase in both the reporting of race and ethnicity data and BIPOC enrollment from 2000 to 2020.
  • Trials led by women were more likely to report race and ethnicity data and had higher enrollment of BIPOC participants.
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Patients with phenylketonuria (PKU) are reliant on special low protein foods (SLPFs) as part of their dietary treatment. In England, several issues regarding the accessibility of SLPFs through the national prescribing system have been highlighted. Therefore, prescribing patterns and expenditure on all SLPFs available on prescription in England ( = 142) were examined.

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Lack of Evidence of Angiotensin-Converting Enzyme 2 Expression and Replicative Infection by SARS-CoV-2 in Human Endothelial Cells.

Circulation

February 2021

National Heart and Lung Institute, National Institute for Health Research Imperial Biomedical Research Centre, Imperial College London, United Kingdom (G.S., A.H., C.P., V.K., G.M.B., M.N., A.M.R.).

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The emerging resistance of crop pathogens to fungicides poses a challenge to food security and compels discovery of new antifungal compounds. Here, we show that mono-alkyl lipophilic cations (MALCs) inhibit oxidative phosphorylation by affecting NADH oxidation in the plant pathogens Zymoseptoria tritici, Ustilago maydis and Magnaporthe oryzae. One of these MALCs, consisting of a dimethylsulfonium moiety and a long alkyl chain (C-SMe), also induces production of reactive oxygen species at the level of respiratory complex I, thus triggering fungal apoptosis.

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The Human-Specific and Smooth Muscle Cell-Enriched LncRNA SMILR Promotes Proliferation by Regulating Mitotic CENPF mRNA and Drives Cell-Cycle Progression Which Can Be Targeted to Limit Vascular Remodeling.

Circ Res

August 2019

From the Queens Medical Research Institute, BHF Centre for Cardiovascular Sciences, University of Edinburgh, United Kingdom (A.D.M., M.D.B., V.M., K.P., J.H., J.P.S., J.I., J.K., A.S.T., N.L.M., D.E.N., A.C., J.C.S., J.R., A.H.B.).

Rationale: In response to blood vessel wall injury, aberrant proliferation of vascular smooth muscle cells (SMCs) causes pathological remodeling. However, the controlling mechanisms are not completely understood.

Objective: We recently showed that the human long noncoding RNA, SMILR, promotes vascular SMCs proliferation by a hitherto unknown mechanism.

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Between April 2016 and September 2017, four cases of group B meningococcal disease were reported among sixth-form college students in Bristol, UK. Culture and non-culture whole genome sequencing was utilised and demonstrated that the four genomes of the responsible ST-41 strains clustered closely on a sub-lineage of ST-41/44 clonal complex. The outbreak resulted in two fatalities.

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Most sequence variants identified hitherto in genome-wide association studies (GWAS) of atrial fibrillation are common, non-coding variants associated with risk through unknown mechanisms. We performed a meta-analysis of GWAS of atrial fibrillation among 29,502 cases and 767,760 controls from Iceland and the UK Biobank with follow-up in samples from Norway and the US, focusing on low-frequency coding and splice variants aiming to identify causal genes. We observe associations with one missense (OR = 1.

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Prevalence and Distribution of Atherosclerosis in a Low- to Intermediate-Risk Population: Assessment with Whole-Body MR Angiography.

Radiology

June 2018

From the Division of Molecular and Clinical Medicine, College of Medicine, University of Dundee, Level 7, Ninewells Hospital, Dundee DD1 9SY, Scotland (M.A.L., J.R.W.M., M.S., D.L., R.L., S.Z.M., A.D.S., J.J.F.B., J.G.H.); NHS Tayside Medical Physics, Ninewells Hospital, Dundee, Scotland (S.J.G., I.C., J.A.M., R.S.N., S.A.H.); Department of Research and Innovation, North York General Hospital, University of Toronto, Toronto, Canada (F.S.); and Department of Clinical Radiology, University Hospital of Wales, Cardiff, Wales (R.D.W.).

Purpose To quantify the burden and distribution of asymptomatic atherosclerosis in a population with a low to intermediate risk of cardiovascular disease. Materials and Methods Between June 2008 and February 2013, 1528 participants with 10-year risk of cardiovascular disease less than 20% were prospectively enrolled. They underwent whole-body magnetic resonance (MR) angiography at 3.

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Development and Validation of a Path Length Calculation for Carotid-Femoral Pulse Wave Velocity Measurement: A TASCFORCE, SUMMIT, and Caerphilly Collaborative Venture.

Hypertension

May 2018

From the Division of Molecular and Clinical Medicine, College of Medicine, University of Dundee, United Kingdom (J.R.W.-M., L.B., J.S., F.K., A.D.S., J.G.H.); NHS Tayside Clinical Radiology, Ninewells Hospital, Dundee, United Kingdom (P.T., M.B.-M., S.C.C.); Department of Research and Innovation, North York General Hospital, University of Toronto, Canada (F.S.); Centre for Genomic and Experimental Medicine, The University of Edinburgh, Western General Hospital, United Kingdom (H.M.C.); NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital and University of Exeter Medical School, United Kingdom (A.C.S., K.A.); Lund University Diabetes Centre, Lund University, Malmö, Sweden (L.G.); Department of Clinical Sciences Malmö, Lund University, Sweden (J.N.); Department of Cardiology, Wales Heart Research Institute, Cardiff, United Kingdom (J.R.C.); Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, United Kingdom (C.M.M., I.B.W.); and Population Health Sciences, University of Bristol, United Kingdom (Y.B.-S.).

Current distance measurement techniques for pulse wave velocity (PWV) calculation are susceptible to intercenter variability. The aim of this study was to derive and validate a formula for this distance measurement. Based on carotid femoral distance in 1183 whole-body magnetic resonance angiograms, a formula was derived for calculating distance.

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A randomized controlled trial was performed on racing horses, to evaluate the efficacy of a new class of therapeutic agents in regenerative medicine-ReGeneraTing Agents® (RGTA®), to treat tendinopathies. Preliminary uncontrolled studies on tendon healing in racing horses with RGTA® (OTR4131)-Equitend® showed encouraging results, justifying performing a randomized, controlled, multicenter study with a two-year racing performance follow up. The objective of this study was to evaluate the effect of Equitend® versus placebo on acute superficial digital flexor tendonitis in racing French Standardbred Trotters (ST).

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Calcineurin is a critical cell-signaling protein that orchestrates growth, stress response, virulence, and antifungal drug resistance in several fungal pathogens. Blocking calcineurin signaling increases the efficacy of several currently available antifungals and suppresses drug resistance. We demonstrate the application of a novel scanning quadrupole DIA method for the analysis of changes in the proteins coimmunoprecipitated with calcineurin during therapeutic antifungal drug treatments of the deadly human fungal pathogen Aspergillus fumigatus.

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A convenience sample of sheep and cattle herds around the cities of Harare, Kwekwe and Bulawayo, located in the Highveld region of Zimbabwe, was used to estimate the seroprevalence and sero-incidence of bluetongue virus (BTV) and epizootic haemorrhagic disease virus (EHDV) antibodies. A competitive enzyme-linked immunosorbent assay was used to identify serum antibodies against BTV and EHDV across three rainy seasons. The median sero-prevalence of BTV and EHDV antibodies in cattle was 62% (interquartile range [IQR]: 30-89) and 56% (IQR: 5-77), respectively.

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Sentinel herds and samples submitted by private equine practitioners were used to determine the sero-prevalence and sero-incidence of African horse sickness virus (AHSV) and equine encephalosis virus (EEV) in horse and donkey populations in the Highveld region of Zimbabwe. The sero-prevalence and sero-incidence of antibodies against these viruses were determined using the competitive enzyme-linked immunosorbent assay (ELISA) for the detection of serum antibodies. In donkeys, the median sero-prevalence of AHSV antibodies, across the three rainy seasons under study, was 75% (inter quartile range [IQR] 67-83), with a seasonal median sero-incidence of 45% (IQR 40-63).

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Safety of lumbar puncture in comatose children with clinical features of cerebral malaria.

Neurology

November 2016

From the Institute of Infection and Global Health (C.A.M., T.S.) and Department of Eye and Vision Science, Institute of Ageing and Chronic Disease (I.J.M., N.A.B., S.P.G., S.P.H.), University of Liverpool (S.P.H.), UK; Departments of Epidemiology and Biostatistics (L.Z., C.L.) and Osteopathic Medical Specialties (K.B.S.) and International Neurology and Psychiatry Epidemiology Program (D.G.P.), Michigan State University, East Lansing; Lancaster University (P.J.D.), UK; Department of Paediatrics and Child Health (M.M.) and the Blantyre Malaria Project (T.E.T.), University of Malawi College of Medicine, Blantyre; St. Paul's Eye Unit (N.A.B.), Royal Liverpool University Hospital; School of Medicine (S.J.G.), University of St. Andrews, UK; Kilimanjaro Centre for Community Ophthalmology (KCCO) (S.L.), University of Cape Town, Department of Ophthalmology, OMB Groote Schuur Hospital Observatory, South Africa; Department of Radiology (S.K.), Queen Elizabeth Central Hospital, Blantyre, Malawi; and Department of Imaging Services (M.J.P.), University of Rochester, NY.

Objective: We assessed the independent association of lumbar puncture (LP) and death in Malawian children admitted to the hospital with the clinical features of cerebral malaria (CM).

Methods: This was a retrospective cohort study in Malawian children with clinical features of CM. Allocation to LP was nonrandom and was associated with severity of illness.

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Developing New Treatments for Heart Failure: Focus on the Heart.

Circ Heart Fail

May 2016

From the Center for Cardiovascular Innovation (M.G.) and Division of Cardiology (S.J.S.), Northwestern Feinberg School of Medicine, Northwestern University, Chicago, IL; Cardiovascular & Metabolic Diseases Drug Discovery Unit, Takeda Pharmaceuticals, Chicago, IL (C.J.L., S.O.); Division of Cardiology, Duke University Medical Center, Durham, NC (S.J.G., R.J.K.); National Heart & Lung Institute, Imperial College, London, United Kingdom (J.G.F.C.); Cardiovascular Medicine Section, Boston University School of Medicine and Boston Medical Center, MA (W.S.C.); Division of Cardiovascular and Renal Products, the United States Food and Drug Administration, Silver Spring, MD (P.D., N.S.); MedStar Heart and Vascular Institute, MedStar Washington Hospital Center, Washington DC (S.E.E.); Psychiatry Department (R.V.P.) and Cardiology Division (J.B.), Stony Brook University, NY; Stealth Bio Therapeutics, Philadelphia, PA (J.C.); Global Drug Discovery, Bayer HealthCare AG, Wuppertal, Germany (W.D., T.K., F.K.); Department of Cardiology, Witten University, Witten, Germany (W.D.); Astra Zeneca Research and Development, Gothenburg, Sweden (K.W.); CSL Behring, Philadelphia, PA (L.I.D.); Sunovion Pharmaceuticals Inc, Marlborough, MA (D.C.); Dipartimento Cardiovascolare, Azienda Ospedaliera Papa Giovannni XXIII, Bergamo, Italy (M.S.); Cardiocell Inc, San Diego, CA (S.S.); and Cardiology Division, Henry Ford Hospital, Detroit, MI (H.N.S.).

Compared with heart failure (HF) care 20 to 30 years ago, there has been tremendous advancement in therapy for ambulatory HF with reduced ejection fraction with the use of agents that block maladaptive neurohormonal pathways. However, during the past decade, with few notable exceptions, the frequency of successful drug development programs has fallen as most novel therapies have failed to offer incremental benefit or raised safety concerns (ie, hypotension). Moreover, no therapy has been approved specifically for HF with preserved ejection fraction or for worsening chronic HF (including acutely decompensated HF).

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