Results 111 to 120 of about 17,660 (277)

Fluid mechanics of sarcomeres as porous media. [PDF]

open access: yes
Muscle contraction, both in skeletal and cardiac tissue, is driven by sarcomeres, the microscopic units inside muscle cells where thick myosin and thin actin filaments slide past each other.

core   +4 more sources

The effects of sodium–glucose cotransporter 2 inhibitors on the ‘forgotten’ right ventricle

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1045-1058, April 2025.
Abstract With the progress in diagnosis, treatment and imaging techniques, there is a growing recognition that impaired right ventricular (RV) function profoundly affects the prognosis of patients with heart failure (HF), irrespective of their left ventricular ejection fraction (LVEF).
Liangzhen Qu, Xueting Duan, Han Chen
wiley   +1 more source

Considerations for drug trials in hypertrophic cardiomyopathy

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1095-1112, April 2025.
Abstract Hypertrophic cardiomyopathy (HCM) is a heterogeneous condition with potentially serious manifestations. Management has traditionally comprised therapies to palliate symptoms and implantable cardioverter‐defibrillators to prevent sudden cardiac death. The need for disease‐modifying therapies has been recognized for decades.
John P. Farrant   +17 more
wiley   +1 more source

Myocardial Perfusion Defects in Hypertrophic Cardiomyopathy Mutation Carriers

open access: yesJournal of the American Heart Association, EarlyView., 2021
Background Impaired myocardial blood flow (MBF) in the absence of epicardial coronary disease is a feature of hypertrophic cardiomyopathy (HCM). Although most evident in hypertrophied or scarred segments, reduced MBF can occur in apparently normal segments.
Rebecca K. Hughes   +14 more
wiley   +1 more source

Muscle residual force enhancement: a brief review

open access: yesClinics, 2013
Muscle residual force enhancement has been observed in different muscle preparations for more than half a century. Nonetheless, its mechanism remains unclear; to date, there are three generally accepted hypotheses: 1) sarcomere length non-uniformity, 2 ...
Fábio Carderelli Minozzo   +1 more
doaj  

Acute loss of muscle attachment causes disorganisation and collapse of arrayed sarcomeres.

open access: yes, 2012
Animals expressing a full length translational fusion of gfp to myo-3 (myosin heavy chain A) were age synchronised at L1 stage and grown to young adulthood at 16°C (t = 0 h).
Brandon D. Fields (188629)   +6 more
core   +1 more source

Semaglutide normalizes increased cardiomyocyte calcium transients in a rat model of high fat diet‐induced obesity

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1386-1397, April 2025.
Sequeira et al. reveal how the glucagon‐like peptide‐1 receptor agonist (GLP‐1‐RA) semaglutide restores cardiomyocyte function in rats subjected to a high‐fat/high‐fructose diet (HFD). Employing fluorescence‐ and patch‐clamp technology in isolated cardiac myocytes, they demonstrate that semaglutide reverses HFD‐induced activation of L‐type calcium ...
Vasco Sequeira   +12 more
wiley   +1 more source

Decline running produces more sarcomeres in rat vastus intermedius muscle fibers than does incline running

open access: yes, 1994
Unaccustomed eccentric exercise, in which a muscle is lengthened while generating tension, is well known to cause injury and pain. A rapid training effect has been demonstrated in a number of eccentric exercises.
R. Lynn, D. L. Morgan
core   +1 more source

Nature of motions between sarcomeres in asynchronously contracting cardiac muscle cells [PDF]

open access: yes, 1992
We observed the asynchronized motions that occur between the sarcomeres during spontaneous contractions to study the mechanical nature of the intact cardiac muscle cell (guinea pig, rat).
Siciliano, G., Krueger, J.W., Denton, A.
core   +1 more source

Cellular Toxicity of Short‐ and Long‐Term Exposures to Polystyrene Nanoplastics and Microplastics in Fish Skin Cell Derived From Fathead Minnow (Pimephales promelas)

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT The ubiquitous presence of microplastics and nanoplastics (MNPs) is raising concerns about their impact on the health of humans and other living organisms. Due to its tiny size, this particle can accumulate and circulate in the body after uptake, resulting in a variety of harmful outcomes on the organism, such as increased oxidative stress and
Trang Thi Nguyen   +2 more
wiley   +1 more source

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