The paper presents the results from three series of simulation experiments performed by means of a realistic computer model of activation propagation in the myocardium. Simulation of two types of hypertrophy showed that hypertrophy of the ventricles without their simultaneous dilatation leaves the parameters of the cardioelectric field virtually unchanged. Change in the activation rate in the layer of elements formed by the intraventricular surface of the cavities, compared to the rate in the other elements of the heart, considerably affects the magnitude and orientation of cardiac vectors during the middle and terminal phase of activation. Rotation of the model heart around its longitudinal axis induces similar changes in the time course of the cardiac vector as are observed in some types of hypertrophy and in volume load of the ventricles.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Immune-checkpoint-inhibitor therapy directed against PD-L1 is tolerated in the heart without manifestation of cardiac inflammation in a preclinical reversible melanoma mouse model.
Front Mol Med
January 2025
Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany.
Immune-checkpoint-inhibitors (ICI) target key regulators of the immune system expressed by cancer cells that mask those from recognition by the immune system. They have improved the outcome for patients with various cancer types, such as melanoma. ICI-based therapy is frequently accompanied by immune-related adverse side effects (IRAEs).
View Article and Find Full Text PDFAnalysis of cellular NO-GC expression in the murine heart and lineage determination in angiotensin II-induced fibrosis.
iScience
January 2025
Physiologisches Institut, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.
NO-sensitive guanylyl cyclase (NO-GC) is involved in the (patho)physiology of the mammalian heart. However, little is known about the individual cardiac cell types that express NO-GC and the role of the enzyme in cardiac fibrosis. Here, we describe the cellular expression of NO-GC in healthy and fibrotic murine myocardium; these data were compared with scRNA-seq data.
View Article and Find Full Text PDFThe tradeoff between the efficacy of calcineurin inhibitors: prevention of allograft rejection vs. post-transplant renal and cardiovascular complications.
Crit Rev Toxicol
January 2025
Department of Life Sciences, Neural Developmental Biology Lab, National Institute of Technology, Rourkela, India.
Solid organ transplantation has emerged as a crucial intervention in the field of medicine. During transplantation, our human body perceives the organ as an exogenous entity or graft, initiating an immune reaction to eliminate it. This immune response ultimately culminates in the rejection of the graft.
View Article and Find Full Text PDFThe Effect of Genotype Differences on Cardiac Involvement in Cases Diagnosed with Duchenne Muscular Dystrophy.
Neuropediatrics
January 2025
Department of Pediatric Cardiology, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey.
Aim: Duchenne muscular dystrophy (DMD) is the most frequently seen muscular disease in childhood. Cardiac involvement is extremely important in terms of morbidity and mortality in these patients. Different studies have shown that mutations occurring in various exons are cardioprotective or increase cardiac involvement in DMD cases.
View Article and Find Full Text PDFEffect of Oral Lactate Administration on Skeletal Muscle Mass in Mice Under Different Loading Conditions.
In Vivo
December 2024
Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi, Japan;
Background/aim: Lactate is a physiologically active substance secreted by skeletal muscle that has been suggested to stimulate muscle mass gain. However, the molecular mechanism for lactate-associated muscle hypertrophy remains unclear. The purpose of the present study was to investigate whether oral administration of lactate increases muscle mass under different loading conditions.
View Article and Find Full Text PDFWant 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!