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Cardiovascular disease and aging are key contributors to myocardial remodeling, often leading to fibrosis, cellular hypertrophy, and impaired cardiac function. Understanding these structural changes is essential for explaining the pathophysiology of heart failure. This study examined histopathological changes in myocardial tissue from a post-mortem cadaver with heart failure. Two age-matched cadavers without cardiac disease were used as controls. Ventricular tissue samples were thin-sectioned and stained for collagen deposition and cellular morphology using Masson's Trichrome and Cresyl Violet dyes. Histopathological findings showed the presence of increased collagen deposition and fibrosis in the myocardial tissue with heart failure, consistent with a stiffened myocardium. Additionally, Cresyl Violet staining showed cardiomyocyte hypertrophy compared to control samples, suggesting cellular remodeling, which is well characterized following heart failure. These findings provide further histological evidence of myocardial remodeling in heart failure, characterized by fibrosis and cardiomyocyte hypertrophy. Further quantitative analysis is needed to deepen our understanding of these pathological changes and their implications for cardiac function.
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http://dx.doi.org/10.7759/cureus.87889 | DOI Listing |
JAMA Cardiol
September 2025
Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, New York.
Importance: Transthyretin cardiac amyloidosis (ATTR-CA) is an underdiagnosed but treatable cause of heart failure (HF) in older individuals that occurs in the context of normal wild-type (ATTRwt-CA) or an abnormal inherited (ATTRv-CA) TTR gene variant. While the most common inherited TTR variant, V142I, occurs in 3% to 4% of self-identified Black Americans and is associated with excess morbidity and mortality, the prevalence of ATTR-CA in this at-risk population is unknown.
Objective: To define the prevalence of ATTR-CA and proportions attributable to ATTRwt-CA or ATTRv-CA among older Black and Caribbean Hispanic individuals with HF.
Hormones (Athens)
September 2025
Division of Endocrinology, Baltimore VA Medical Center, Baltimore, MD, USA.
Sodium-glucose co-transporter 2 inhibitors (SGLT2i) are a fairly new class of agents for diabetes that have demonstrated significant benefits in glycemic control and cardiovascular outcomes with outpatient use. The aim of this review is to provide an overview of the effect of SGLT2i use on glycemic control and clinical outcomes in the hospital setting.An electronic search of PubMed was conducted to analyze publications that assessed the inpatient use of SGLT2i and included patients with diabetes.
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September 2025
Division of Gastroenterology and Hepatology, Lynda K. and David M. Underwood Center for Digestive Health, Houston Methodist Hospital, Houston, TX, USA.
Purpose Of Review: This review aims to characterize the known cardiovascular (CV) manifestations associated with inflammatory bowel disease (IBD) and the underlying mechanisms driving these associations.
Recent Findings: Gut dysbiosis, a hallmark of patients with IBD, can result in both local and systemic inflammation, thereby potentially increasing the risk of cardiovascular disease (CVD) in the IBD population. Micronutrient deficiencies, anemia, and sarcopenia independently increase the risk of CVD and are frequent comorbidities of patients with IBD.
Clin Res Cardiol
September 2025
Department of Cardiology, University Heart Center, University Hospital Zurich, Center for Translational and Experimental Cardiology (CTEC), University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
Background: Diabetic patients with ST-segment elevation myocardial infarction (STEMI) are at an increased risk of cardiovascular events as compared to non-diabetic patients. This analysis investigated outcomes of diabetic patients presenting with multivessel disease (MVD) and STEMI in a contemporary trial and the relevance of an immediate versus staged multivessel PCI strategy in this high-risk population.
Methods: Patients enrolled in the MULTISTARS AMI trial were stratified according to the presence/absence of diabetes.
JACC Basic Transl Sci
September 2025
BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom; Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, the Netherlands. Electronic address: andy.bak
Coronary artery bypass graft (CABG) surgery remains the gold standard of care to prevent myocardial ischemia in patients with advanced atherosclerosis; however, poor long-term graft patency remains a considerable and long-standing problem. Excessive vascular smooth muscle cell (SMC) proliferation in the grafted tissue is recognized as central to late CABG failure. We previously identified SMILR, a human-specific SMC-enriched long noncoding RNA that drives SMC proliferation, suggesting that targeting SMILR expression could be a novel way to prevent neointima formation, and thus CABG failure.
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