560 results match your criteria: "McMaster University and Hamilton Health Sciences.[Affiliation]"

Exosite crosstalk in thrombin.

J Thromb Haemost

January 2025

Department of Medicine, McMaster University; Department of Biochemistry and Biomedical Sciences, McMaster University; Thrombosis and Atherosclerosis Research Institute, McMaster University and Hamilton Health Sciences.

Thrombin is the central mediator of hemostasis, where it converts fibrinogen to fibrin, activates upstream factors to promote coagulation, activates factor XIII and thrombin-activatable fibrinolysis inhibitor to stabilize fibrin, mediates anticoagulation, and modulates cellular activity via cell surface receptors. Thus, regulation of thrombin activity is essential to the hemostatic balance. Thrombin is regulated by positively charged surface domains that surround the active site.

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Background: Effective hemorrhage protocols prioritize immediate hemostatic resuscitation to manage hemorrhagic shock. Prehospital resuscitation using blood products, such as whole blood or alternatively dried plasma in its absence, has the potential to improve outcomes in hemorrhagic shock patients. However, integrating blood products into prehospital care poses substantial logistical challenges due to issues with storage, transport, and administration in field environments.

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Cardiovascular Risk in Prostate Cancer: State-of-the-Art Review.

JACC CardioOncol

December 2024

Division of Urology, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.

Cardiovascular disease is common in patients with prostate cancer and is a significant cause of death. Cardiovascular risk factors are frequent in this population and are often not addressed to thresholds recommended by cardiovascular practice guidelines. Androgen deprivation therapy reduces muscle strength and increases adiposity, increasing the risk for diabetes and hypertension, although its relationship with adverse cardiovascular events requires confirmation.

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The administration of certain cancer therapies can be associated with the development of cardiovascular toxicity or complications. This spectrum of toxicities is broad and requires nuanced approaches for prevention, identification, and management. This expert panel summarizes the consensus of opinions of diverse health care professionals in several key areas: 1) cardioprotection involves strategies aimed at the primary prevention of cancer therapy-related cardiovascular toxicity; 2) surveillance entails monitoring for cancer therapy-related cardiovascular toxicity during cancer therapy; 3) permissive cardiotoxicity is the informed continuation of cancer therapy in the presence of cardiovascular toxicity, along with the implementation of mitigating cardiovascular treatments; and 4) special considerations include the invasive management of severe cardiovascular disease in patients receiving treatments for advanced cancer and the exploration of drug-drug interactions in cardio-oncology.

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Background And Objective: It is unclear whether variation in covert cerebrovascular disease prevalence is attributable to ethnic differences or to other factors. We aimed to examine the associations of country of residence with covert vascular brain injury (VBI) and cognitive dysfunction among Chinese adults residing in Canada and China.

Methods: This was a multisite cross-sectional study of Chinese adults aged 40-80 years in the Canadian Alliance for Healthy Hearts and Healthy Minds (CAHHM; January 1, 2014, to December 31, 2018) and Prospective Urban Rural Epidemiological-Mind (PURE-MIND; November 1, 2010, to July 31, 2015) cohorts living in Canada and China.

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Aims: The aim of this study was to describe the prognostic importance of left ventricular ejection fraction (LVEF) versus right ventricular (RV) dilatation and dysfunction in patients with heart failure (HF) from countries of different income levels.

Methods And Results: We enrolled 17 321 participants with HF from 40 countries. Participants were followed for a median (25th-75th percentile) of 2.

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Single-pill combination therapy is the standard of care for hypertension, but it is time for the next step: Implementation.

Med

December 2024

Masira Research Institute, Universidad de Santander (UDES), Bucaramanga, Colombia; Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador. Electronic address:

The GMRx2 trial in adults with high blood pressure (BP) demonstrated that after 12 weeks, a low-dose single-pill combination of telmisartan, amlodipine, and indapamide significantly reduced BP levels compared to several dual combinations (telmisartan with amlodipine, telmisartan with indapamide, or amlodipine with indapamide). Adverse events did not differ between the groups. This novel therapeutic option could improve high BP control.

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International norms for adult handgrip strength: A systematic review of data on 2.4 million adults aged 20 to 100+ years from 69 countries and regions.

J Sport Health Sci

November 2024

Alliance for Research in Exercise, Nutrition and Activity (ARENA), Allied Health and Human Performance, University of South Australia, Adelaide, SA, 5000, Australia.

Article Synopsis
  • Muscular strength, particularly measured by handgrip strength (HGS), is an important indicator of health and a predictor of age-related diseases, but no international benchmarks exist for HGS across different ages and sexes.
  • The study systematically analyzed data from over 2.4 million adults across 69 countries to establish sex- and age-specific norms for HGS, identifying a peak in strength between ages 30 and 39 before a gradual decline.
  • Findings revealed that while absolute and body size-normalized HGS improves slightly in early adulthood, a more significant drop occurs from middle to late adulthood, with males generally experiencing a faster decline than females.
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Article Synopsis
  • The COMPLETE trial showed that complete revascularization in STEMI patients with multivessel disease leads to better health outcomes than treating only the culprit lesion.
  • This subanalysis focused on whether having a nonculprit lesion (NCL) in the proximal/mid left anterior descending artery (LAD) affects outcomes compared to NCLs in other locations.
  • Results indicated that while the presence of a proximal/mid-LAD NCL did not significantly alter treatment benefits, complete revascularization consistently reduced major cardiovascular events across both groups.
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Background: GLP-1 receptor agonists reduce the risk of major adverse cardiovascular events (MACE) and can also have kidney benefits. However, whether GLP-1 receptor agonists improve clinically important kidney outcomes remains uncertain. We aimed to comprehensively assess the effects of GLP-1 receptor agonists on kidney and cardiovascular disease outcomes by performing a meta-analysis of randomised controlled trials.

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Cardiovascular Risk in Prostate Cancer.

Cardiol Clin

February 2025

Division of Urology, Department of Surgery, McMaster University, Hamilton, Canada.

Cardiovascular disease is common in patients with prostate cancer and is an important cause of death. Cardiovascular risk factors are frequent in this population and are often not addressed to thresholds recommended by cardiovascular practice guidelines. Androgen deprivation therapy (ADT) reduces muscle strength and increases adiposity, thereby increasing the risk of diabetes and hypertension, although its relationship with adverse cardiovascular events requires confirmation.

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Pragmatic monitoring of emerging efficacy data in randomized controlled trials.

Clin Trials

November 2024

Population Health Research Institute (PHRI), Faculty of Health Sciences, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada.

Monitoring the conduct of phase III randomized controlled trials is driven by ethical reasons to protect the study integrity and the safety of trial participants. We propose a group sequential, pragmatic approach for monitoring the accumulating efficacy information in randomized controlled trials. The "Population Health Research Institute boundary" is simple to implement and sensible, as it considers the reduction in uncertainty with increasing information as the study progresses.

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Article Synopsis
  • Prostate cancer (PC) patients often face high rates of cardiovascular disease (CVD), which significantly impacts their survival, and recent studies are examining the relationship between these two conditions throughout treatment.
  • A comprehensive review of literature from 2000 to 2024 highlights the role of CVD in PC-related mortality, risk factors, and how different treatments affect cardiovascular health, including hormonal therapies and chemotherapy.
  • The conclusion emphasizes the urgent need to address CVD as a major cause of death in PC patients by understanding its complex interactions with cancer treatments and prioritizing prevention strategies and multidisciplinary care.
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Background: There are limited data on the physical effects of androgen deprivation therapy (ADT) for prostate cancer (PC), and on the relationships of such measures of adiposity and strength to cardiovascular outcomes.

Objectives: The primary objective of this study was to evaluate the relationships of measures of adiposity and strength to cardiovascular outcomes (cardiovascular death, myocardial infarction, stroke, heart failure, arterial revascularization, peripheral arterial disease, and venous thromboembolism) in patients with PC. A secondary objective was to characterize the relationships between ADT use and 12-month changes in these physical measures.

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With the increasing burden of diabetes as a cause of macro- and microvascular disease linked to the epidemics of obesity, attention is being paid to dysglycaemic states that predict and precede the development of type 2 diabetes. Such conditions, termed pre-diabetes, are characterized by fasting plasma glucose, or plasma glucose levels on an oral glucose tolerance test, or values of glycated haemoglobin intermediate between 'normal' values and those characterizing diabetes. These last are by definition associated, in epidemiological terms, with a higher incidence of microvascular disease-mostly retinopathy.

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Aims: To estimate the incidence of major adverse cardiovascular events (MACE), expanded MACE, and MACE or Death across Fibrosis- 4 score (FIB-4) categories in people with type 2 diabetes and to determine whether efpeglenatide's effect varies with increasing FIB-4 severity.

Materials And Methods: AMPLITUDE-O trial data were used to estimate the relationship of FIB-4 score categories to the hazard of MACE, expanded MACE, and MACE or death. Interactions on these outcomes between baseline FIB-4 score, and between FIB-4 score and efpeglenatide were also assessed.

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Background And Purpose: Cold beverage intake (carbonated drinks, fruit juice/drinks, and water) may be important population-level exposures relevant to stroke risk and prevention. We sought to explore the association between intake of these beverages and stroke.

Methods: INTERSTROKE is an international matched case-control study of first stroke.

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Background: The drivers of cardiovascular disease (CVD) and all-cause mortality may differ around the world. Regional-level prospective data can help guide policies to reduce CVD and all-cause mortality.

Objectives: This study examined the incidence of CVD and mortality in Malaysia and the Philippines and estimated the population-level risks attributable to common risk factors for each outcome.

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