10,678 results match your criteria: "Radcliffe Department of Medicine ; University of Oxford ; Oxford[Affiliation]"

Introduction: Sexual health and wellbeing are significant aspects of quality of life. However, taking a sexual history is often avoided in medical practice, leaving a void in management and awareness. As the menopause can have a major impact on sexual health, it is imperative that healthcare providers are appropriately trained in sexual health and wellbeing and the aligned disciplines in order to achieve optimal care.

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  • Genetic studies have highlighted the need for more diverse research on plasma fibrinogen levels, as previous studies largely focused on Europeans, leading to gaps in understanding and missing heritability.
  • By analyzing data from whole-genome sequencing and genotype data from large cohorts, researchers identified 18 genetic loci related to fibrinogen levels, some of which are more common in African populations and include variants that may impact protein function.
  • The study's findings indicate a connection between fibrinogen levels and various health conditions, emphasizing the importance of whole-genome sequencing in discovering genetic factors in diverse populations and enhancing knowledge about fibrinogen regulation.
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  • A study investigated the impact of the timing of treatment for the first acute attack of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) on long-term relapse risk and conversion to MOG-IgG seronegative status.
  • Conducted in South Korea, the research involved a cohort of 240 adults diagnosed with MOGAD, focusing on their treatment timing categorized as early, intermediate, or late.
  • Results indicated that 45.8% of patients experienced relapses and 25% converted to seronegative MOG-IgG, highlighting the potential significance of timely treatment in managing MOGAD.
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Over the past century, the Javan rhinoceroses' () secluded nature and low population size have led to a gap in knowledge of their ecology. With fewer than 80 individuals surviving in a single population in West Java, Indonesia, the Javan rhinoceros is one of the most critically endangered mammals in the world. As part of a pilot bioacoustics study of the Javan rhinoceros in 2019, we systematically reviewed camera trap footage from the core Javan rhinoceros range in Ujung Kulon National Park (UKNP).

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  • The development of differentiation therapy for Acute Myeloid Leukemia (AML) could significantly enhance patient outcomes globally.
  • Our lab has identified a new class of agents that successfully reduce tumors in mouse models.
  • We optimized a compound (OXS007417) for better effectiveness and safety, and discovered improved versions (OXS008255 and OXS008474) that showed better pharmacokinetics and delayed tumor growth in tests with HL-60 cells.
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Meningeal lymphatic function promotes oligodendrocyte survival and brain myelination.

Immunity

October 2024

Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA; Neuroscience Ph.D. Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Jacksonville, FL 32224, USA. Electronic address:

The precise neurophysiological changes prompted by meningeal lymphatic dysfunction remain unclear. Here, we showed that inducing meningeal lymphatic vessel ablation in adult mice led to gene expression changes in glial cells, followed by reductions in mature oligodendrocyte numbers and specific lipid species in the brain. These phenomena were accompanied by altered meningeal adaptive immunity and brain myeloid cell activation.

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Why Have We Not Been Able to Demonstrate Reduced Mortality in Patients With HFmrEF/HFpEF?

J Am Coll Cardiol

November 2024

British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom. Electronic address:

No randomized controlled trial has yet demonstrated a statistically significant reduction in mortality in patients with heart failure and mildly reduced ejection (HFmrEF) or heart failure and preserved ejection fraction (HFpEF), in contrast to the benefits observed in heart failure with reduced ejection fraction (HFrEF). However, this probably reflects the statistical power of trials to date to show an effect on mortality rather than mechanistic differences between HFmEF/HFpEF and HFrEF or differences in treatment efficacy. Compared to patients with HFrEF, those with HFmrEF/HFpEF have lower mortality rates and a smaller proportion of potentially modifiable cardiovascular deaths (as opposed to unmodifiable noncardiovascular deaths).

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Temporal Trends in Takotsubo Syndrome: Results From the International Takotsubo Registry.

J Am Coll Cardiol

September 2024

Department of Cardiology and Internal Medicine B, University Medicine Greifswald, Greifswald, Germany; DZHK (German Centre for Cardiovascular Research), partner site Greifswald, Greifswald, Germany; First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.

Article Synopsis
  • The study investigated changes in demographics, risk factors, clinical presentations, and outcomes of takotsubo syndrome (TTS) patients from 2004 to 2021, using data from the InterTAK registry.
  • Over the years, the proportion of male patients increased, and there was a rise in cases of midventricular TTS as well as significant growth in the incidence of physical triggers.
  • There was also a notable increase in 60-day mortality rates, although no significant change in 1-year mortality when excluding early deaths was observed, indicating a complex evolution of TTS and its management in recent years.
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Zibotentan in Microvascular Angina: A Randomized, Placebo-Controlled, Crossover Trial.

Circulation

November 2024

British Heart Foundation Glasgow Cardiovascular Research Centre, School of Cardiovascular and Metabolic Health, University of Glasgow, United Kingdom (A.M., N.S., P.W.M., P.W., C.B.).

Background: Microvascular angina is associated with dysregulation of the endothelin system and impairments in myocardial blood flow, exercise capacity, and health-related quality of life. The G allele of the noncoding single nucleotide polymorphism enhances expression of the endothelin-1 gene () in human vascular cells, potentially increasing circulating concentrations of Endothelin-1 (ET-1). Whether zibotentan, an oral receptor selective antagonist, is efficacious and safe for the treatment of microvascular angina is unknown.

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Background: Kidney outcomes have been variably defined using nonstandardized composite end points in key heart failure trials, thus introducing complexity in their interpretation and cross-trial comparability. We examined the effects of steroidal mineralocorticoid receptor antagonists, the angiotensin receptor-neprilysin inhibitor sacubitril/valsartan, and SGLT2 (sodium-glucose cotransporter-2) inhibitors on composite kidney end points using uniform definitions in 6 contemporary heart failure trials.

Methods: Individual participant-level data from trials of steroidal mineralocorticoid receptor antagonists (EMPHASIS-HF [Eplerenone in Mild Patients Hospitalization and Survival Study in Heart Failure], TOPCAT [Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist] Americas), angiotensin receptor-neprilysin inhibitor (PARADIGM-HF [Prospective Comparison of Angiotensin Receptor-Neprilysin Inhibitor With ACEI to Determine Impact on Global Mortality and Morbidity in Heart Failure], PARAGON-HF [Prospective Comparison of Angiotensin Receptor-Neprilysin Inhibitor With Angiotensin-Receptor Blockers Global Outcomes in HF With Preserved Ejection Fraction]), and SGLT2 inhibitors (DAPA-HF [Dapagliflozin and Prevention of Adverse Outcomes in Heart Failure], DELIVER [Dapagliflozin Evaluation to Improve the Lives of Patients With Preserved Ejection Fraction Heart Failure]) were included.

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  • The study analyzed the role of biomarkers NT-proBNP and hs-cTnI in managing obstructive hypertrophic cardiomyopathy (oHCM) and how they relate to treatment effects of aficamten.
  • Baseline levels of NT-proBNP correlated with the left ventricular outflow tract gradient (LVOT-G) and diastolic function, while hs-cTnI correlated with left ventricular thickness.
  • After 8 weeks of aficamten treatment, NT-proBNP decreased by 79% and hs-cTnI by 41%, with these reductions linked to improvements in heart function, health status, and exercise capacity, suggesting that these biomarkers are useful for tracking treatment response.
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Navigating uncertainty: asthma biologics during pregnancy.

Lancet Respir Med

January 2025

Respiratory Medicine Unit and Oxford Respiratory NIHR BRC, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK. Electronic address:

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Background And Aims: Posterior wall isolation (PWI) is commonly incorporated into catheter ablation (CA) strategies for persistent atrial fibrillation (AF) in an attempt to improve outcomes. In the CAPLA randomized study, adjunctive PWI did not improve freedom from atrial arrhythmia at 12 months compared with pulmonary vein isolation (PVI) alone. Whether additional PWI reduces arrhythmia recurrence over the longer term remains unknown.

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Flow inefficiencies in non-obstructive HCM revealed by kinetic energy and hemodynamic forces on 4D-flow CMR.

Eur Heart J Imaging Methods Pract

July 2024

University of Oxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.

Aims: Patients with non-obstructive hypertrophic cardiomyopathy (HCM) exhibit myocardial changes which may cause flow inefficiencies not detectable on echocardiogram. We investigated whether left ventricular (LV) kinetic energy (KE) and hemodynamic forces (HDF) on 4D-flow cardiovascular magnetic resonance (CMR) can provide more sensitive measures of flow in non-obstructive HCM.

Methods And Results: Ninety participants (70 with non-obstructive HCM and 20 healthy controls) underwent 4D-flow CMR.

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  • Hyaluronidase is the primary treatment for skin necrosis caused by vascular occlusion after hyaluronic acid fillers, but there’s a lack of strong evidence on the best dosages to use.
  • A systematic review and pilot meta-analysis of 15 studies found that 77.8% of patients saw complete resolution of scars after treatment, with low doses showing a higher success rate (88.1%) compared to high doses (69.6%), although the difference was not statistically significant.
  • The study suggests that future research should focus on providing detailed protocols to create evidence-based guidelines for using hyaluronidase in clinical settings.
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  • Direct oral anticoagulants are commonly used for preventing strokes in patients with atrial fibrillation and flutter, but concerns about bleeding limit their use; milvexian is a new drug that might work as well with less bleeding risk.
  • The LIBREXIA AF trial is a large global study comparing milvexian to apixaban, enrolling 15,500 participants to assess if milvexian can prevent strokes without increasing bleeding events significantly.
  • The results from this study aim to clarify the efficacy and safety of milvexian compared to apixaban over a projected 4-year follow-up period.
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Digital tools in heart failure: addressing unmet needs.

Lancet Digit Health

October 2024

National Heart Centre Singapore, Singapore; Duke-National University of Singapore, Singapore; Baim Institute for Clinical Research, Boston, MA, USA. Electronic address:

Article Synopsis
  • * The rise of technology and global connectivity supports the use of these tools, yet challenges persist in treatment effectiveness, especially in lower-income regions.
  • * To maximize the benefits of digital health tools, it's essential to create supportive systems and clinical frameworks that can be applied worldwide.
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  • Wearable accelerometers can measure physical activity levels and provide additional insights into how heart failure therapies, like dapagliflozin, impact patients' functional limitations.
  • In a study involving heart failure patients, accelerometers were worn to track various activity metrics during trial phases, focusing on changes from baseline to week 16.
  • Results showed that dapagliflozin positively influenced the number of steps and time spent in moderate-to-vigorous activity, though it did not enhance the 6-minute walk test distance, highlighting the usefulness of accelerometer data for assessing everyday physical activity.
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Relationship Between Cardiac Structure and Function With Renal Function Trajectory and Outcomes in Patients With Heart Failure: Insights From the PARAGON-HF Trial.

Circ Heart Fail

October 2024

Division of Cardiovascular Medicine, (H.L., S.C., S.L., M.A., A.K., K.K.T., B.L.C., N.P., X.W., M.A.P., S.M.H., S.D.S., H.S.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.

Article Synopsis
  • Renal dysfunction is common in heart failure patients and linked to poor outcomes, but how cardiac structure and function impact kidney health remains unclear.
  • This study analyzed data from the PARAGON-HF trial to explore the relationship between echocardiographic measurements of heart structure/function and changes in kidney function over time.
  • Results showed that higher left ventricular mass and certain heart parameters are associated with greater declines in kidney function and an increased risk of serious kidney-related events, suggesting that cardiac health plays a crucial role in renal outcomes for these patients.
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The global prevalence of obesity has more than doubled over the past four decades, currently affecting more than a billion individuals. Beyond its recognition as a high-risk condition that is causally linked to many chronic illnesses, obesity has been declared a disease per se that results in impaired quality of life and reduced life expectancy. Notably, two-thirds of obesity-related excess mortality is attributable to cardiovascular disease.

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The global prevalence of obesity has more than doubled over the past four decades, currently affecting more than a billion individuals. Beyond its recognition as a high-risk condition that is causally linked to many chronic illnesses, obesity has been declared a disease per se that results in impaired quality of life and reduced life expectancy. Notably, two-thirds of obesity-related excess mortality is attributable to cardiovascular disease.

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The impact of different doses of oral iron supplementation during pregnancy: a pilot randomized trial.

Blood Adv

November 2024

National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.

Article Synopsis
  • - Oral iron is the primary treatment for iron deficiency anemia during pregnancy, and a pilot randomized trial was conducted to assess different dosing schedules (daily, every other day, and three times a week) on various outcomes in non-anemic pregnant women.
  • - Of the 300 participants, overall adherence to the supplementation was 82.5%, with better adherence in the alternate day and three times a week groups (62% and 61%, respectively) compared to the daily group (47%).
  • - Results indicated that the daily iron dosing may help maintain hemoglobin levels better, but many reported side effects overlapped with typical pregnancy symptoms. More extensive trials are needed to confirm the benefits of oral iron supplementation for preventing iron deficiency anemia.
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Introduction: People with Parkinson's disease (PwPD) present motor alterations which can impact daily life tasks that require speed and/or accuracy of movement.

Objective: A sub analysis of NCT01439022, aiming to estimate the extent to which two different exercise training protocols (global and handwriting upper limb exercise training) impact reaction time, travel speed, and accuracy in PwPD.

Methods: Seventy PwPD, right-side dominant were randomised 1:1 into two six-month training protocol groups; 35 PwPD performed global exercise training and 35 performed specific training (handwriting upper limb exercise movements).

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