High fidelity genome-wide expression analysis has strengthened the idea that microRNA (miRNA) signatures in peripheral blood mononuclear cells (PBMCs) can be potentially used to predict the pathology when anatomical samples are inaccessible like the heart. PBMCs from 48 non-failing controls and 44 patients with relatively stable chronic heart failure (ejection fraction of ≤ 40%) associated with dilated cardiomyopathy (DCM) were used for miRNA analysis. Genome-wide miRNA-microarray on PBMCs from chronic heart failure patients identified miRNA signature uniquely characterized by the downregulation of miRNA-548 family members. We have also independently validated downregulation of miRNA-548 family members (miRNA-548c & 548i) using real time-PCR in a large cohort of independent patient samples. Independent in silico Ingenuity Pathway Analysis (IPA) of miRNA-548 targets shows unique enrichment of signaling molecules and pathways associated with cardiovascular disease and hypertrophy. Consistent with specificity of miRNA changes with pathology, PBMCs from breast cancer patients showed no alterations in miRNA-548c expression compared to healthy controls. These studies suggest that miRNA-548 family signature in PBMCs can therefore be used to detect early heart failure. Our studies show that cognate networking of predicted miRNA-548 targets in heart failure can be used as a powerful ancillary tool to predict the ongoing pathology.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3735826 | PMC |
| http://dx.doi.org/10.1016/j.yjmcc.2013.05.011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Importance: Cardiovascular health outcomes associated with noncigarette tobacco products (cigar, pipe, and smokeless tobacco) remain unclear, yet such data are required for evidence-based regulation.
Objective: To investigate the association of noncigarette tobacco products with cardiovascular health outcomes.
Design, Setting, And Participants: This cohort study was conducted within the Cross Cohort Collaboration Tobacco Working Group by harmonizing tobacco-related data and conducting a pooled analysis from 15 US-based prospective cohorts with data on the use of at least 1 noncigarette tobacco product ranging between 1948 and 2015.
Role of Trained Immunity in Heath and Disease.
Curr Cardiol Rep
January 2025
Center for Cardiovascular Research, Division of Cardiology, Department of Medicine, Washington University School of Medicine, 660 S Euclid Ave, Campus Box 8086, St. Louis, MO, 63110, USA.
Purpose Of Review: This review aims to explore the role of immune memory and trained immunity, focusing on how innate immune cells like monocytes, macrophages, and natural killer cells undergo long-term epigenetic and metabolic rewiring. Specifically, it examines the mechanisms by which trained immunity, often triggered by infection or vaccination, could impact cardiac processes and contribute to both protective and pathological responses within the cardiovascular system.
Recent Findings: Recent research demonstrates that vaccination and infection not only activate immune responses in circulating monocytes and tissue macrophages but also affect immune progenitor cells within the bone marrow environment, conferring lasting protection against heterologous infections.
Importance of early use of tolvaptan in hyponatremic acutely decompensated heart failure patients, a retrospective study.
Egypt Heart J
January 2025
Department of Cardiology, Division of Heart & Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands.
Background: Hyponatremia is one of the complicating findings in acute decompensated heart failure. Decrease in cardiac output and systemic blood pressure triggers activation of renin-angiotensin-aldosterone system, antidiuretic hormone, and norepinephrine due to the perceived hypovolemia. Fluid-overloaded heart failure patients are commonly treated with loop diuretics, acutely decompensated heart failure patients tend to be less responsive to conventional oral doses of a loop diuretic, while other different diuretics could work in different part of nephron circulation system.
View Article and Find Full Text PDFFocusing on microvascular function in heart failure with preserved ejection fraction.
Heart Fail Rev
January 2025
Department of Cardiology, Cardiology I, University Medical Center Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
Heart failure is a prevalent global health issue. Heart failure with preserved ejection fraction (HFpEF), which already represents half of all heart cases worldwide, is projected to further increase, driven by aging populations and rising cardiovascular risk factors. Effective therapies for HFpEF remain limited, particularly due to its pathophysiological heterogeneity and incomplete understanding of underlying pathomechanisms and implications.
View Article and Find Full Text PDFMetabolic Dysfunction Associated-Steatotic Liver Disease (MASLD) and Cardiovascular Risk: Embrace All Facets of the Disease.
Curr Cardiol Rep
January 2025
Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University, 121 08, Prague, Czech Republic.
Purpose Of Review: In recent years, the terms "metabolic associated fatty liver disease-MAFLD" and "metabolic dysfunction-associated steatotic liver disease-MASLD" were introduced to improve the encapsulation of metabolic dysregulation in this patient population, as well as to avoid the negative/stigmatizing terms "non-alcoholic" and "fatty".
Recent Findings: There is evidence suggesting links between MASLD and coronary heart disease (CHD), heart failure (HF), atrial fibrillation (AF), stroke, peripheral artery disease (PAD) and chronic kidney disease (CKD), although the data for HF, AF, stroke and PAD are scarcer. Physicians should consider the associations between MASLD and CV diseases in their daily practice.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!