Titin: a tunable spring in active muscle

K Nishikawa - Physiology, 2020 - journals.physiology.org
Muscle has conventionally been viewed as a motor that converts chemical to kinetic energy
in series with a passive spring, but new insights emerge when muscle is viewed as a …

State of the art review on genetics and precision medicine in arrhythmogenic cardiomyopathy

V Patel, B Asatryan, B Siripanthong, PB Munroe… - International journal of …, 2020 - mdpi.com
Arrhythmogenic cardiomyopathy (ACM) is an inherited cardiomyopathy characterised by
ventricular arrhythmia and an increased risk of sudden cardiac death (SCD). Numerous …

Calcium-dependent titin–thin filament interactions in muscle: observations and theory

K Nishikawa, S Dutta, M DuVall, B Nelson… - Journal of Muscle …, 2020 - Springer
Gaps in our understanding of muscle mechanics demonstrate that the current model is
incomplete. Increasingly, it appears that a role for titin in active muscle contraction might …

The emerging role of the RBM20 and PTBP1 ribonucleoproteins in heart development and cardiovascular diseases

S Fochi, P Lorenzi, M Galasso, C Stefani, E Trabetti… - Genes, 2020 - mdpi.com
Alternative splicing is a regulatory mechanism essential for cell differentiation and tissue
organization. More than 90% of human genes are regulated by alternative splicing events …

Effects of a titin mutation on force enhancement and force depression in mouse soleus muscles

U Tahir, JA Monroy, NA Rice… - Journal of …, 2020 - journals.biologists.com
The active isometric force produced by muscles varies with muscle length in accordance
with the force–length relationship. Compared with isometric contractions at the same final …

Mechanobiology assays with applications in cardiomyocyte biology and cardiotoxicity

CA Blair, BL Pruitt - Advanced healthcare materials, 2020 - Wiley Online Library
Cardiomyocytes are the motor units that drive the contraction and relaxation of the heart.
Traditionally, testing of drugs for cardiotoxic effects has relied on primary cardiomyocytes …

Contracting striated muscle has a dynamic I‐band spring with an undamped stiffness 100 times larger than the passive stiffness

JD Powers, P Bianco, I Pertici… - The Journal of …, 2020 - Wiley Online Library
Key points Fast sarcomere‐level mechanics in contracting intact fibres from frog skeletal
muscle reveal an I‐band spring with an undamped stiffness 100 times larger than the known …

Changes in myocardial microstructure and mechanics with progressive left ventricular pressure overload

WM Torres, SC Barlow, A Moore, LA Freeburg… - Basic to Translational …, 2020 - jacc.org
This study assessed the regional changes in myocardial geometry, microstructure,
mechanical behavior, and properties that occur in response to progressive left ventricular …

[HTML][HTML] Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination

YL Protsenko, SV Klinova, OP Gerzen, LI Privalova… - Toxicology reports, 2020 - Elsevier
Subchronic intoxications induced in male rats by repeated intraperitoneal injections of lead
acetate and cadmium chloride, administered either alone or in combination, are shown to …

Myocardial overexpression of ANKRD1 causes sinus venosus defects and progressive diastolic dysfunction

N Piroddi, P Pesce, B Scellini, S Manzini… - Cardiovascular …, 2020 - academic.oup.com
Abstract Aims Increased Ankyrin Repeat Domain 1 (ANKRD1) levels linked to gain of
function mutations have been associated to total anomalous pulmonary venous return and …