Exploring the connection between relaxed myosin states and the Anrep effect
V Sequeira, C Maack, GH Reil, JC Reil - Circulation Research, 2024 - Am Heart Assoc
The Anrep effect is an adaptive response that increases left ventricular contractility following
an acute rise in afterload. Although the mechanistic origin remains undefined, recent …
an acute rise in afterload. Although the mechanistic origin remains undefined, recent …
[HTML][HTML] Methods for assessing cardiac myofilament calcium sensitivity
Myofilament calcium (Ca2+) sensitivity is one of several mechanisms by which force
production of cardiac muscle is modulated to meet the ever-changing demands placed on …
production of cardiac muscle is modulated to meet the ever-changing demands placed on …
Nitrosylation of cardiac CaMKII at Cys290 mediates mechanical afterload‐induced increases in Ca2+ transient and Ca2+ sparks
Cardiac mechanical afterload induces an intrinsic autoregulatory increase in myocyte Ca2+
dynamics and contractility to enhance contraction (known as the Anrep effect or slow force …
dynamics and contractility to enhance contraction (known as the Anrep effect or slow force …
CaMKII activity contributes to homeometric autoregulation of the heart: A novel mechanism for the Anrep effect
JC Reil, GH Reil, Á Kovács, V Sequeira… - The Journal of …, 2020 - Wiley Online Library
Key points The Anrep effect represents the alteration of left ventricular (LV) contractility to
acutely enhanced afterload in a few seconds, thereby preserving stroke volume (SV) at …
acutely enhanced afterload in a few seconds, thereby preserving stroke volume (SV) at …
[HTML][HTML] Strain rate of stretch affects crossbridge detachment during relaxation of intact cardiac trabeculae
BCW Tanner, BM Palmer, CS Chung - Plos one, 2024 - journals.plos.org
Mechanical Control of Relaxation refers to the dependence of myocardial relaxation on the
strain rate just prior to relaxation, but the mechanisms of enhanced relaxation are not well …
strain rate just prior to relaxation, but the mechanisms of enhanced relaxation are not well …
[HTML][HTML] Harnessing conserved signaling and metabolic pathways to enhance the maturation of functional engineered tissues
NI Callaghan, LJ Durland, RG Ireland… - NPJ Regenerative …, 2022 - nature.com
The development of induced-pluripotent stem cell (iPSC)-derived cell types offers promise
for basic science, drug testing, disease modeling, personalized medicine, and translatable …
for basic science, drug testing, disease modeling, personalized medicine, and translatable …
Simultaneous brightfield, fluorescence, and optical coherence tomographic imaging of contracting cardiac trabeculae ex vivo
JM Dowrick, AJ Anderson, ML Cheuk, K Tran… - JoVE (Journal of …, 2021 - jove.com
In cardiac muscle, intracellular Ca2+ transients activate contractile myofilaments, causing
contraction, macroscopic shortening, and geometric deformation. Our understanding of the …
contraction, macroscopic shortening, and geometric deformation. Our understanding of the …
Deciphering the dynamics: Exploring the impact of mechanical forces on histone acetylation
J Cai, Y Deng, Z Min, C Li, Z Zhao, D Jing - The FASEB Journal, 2024 - Wiley Online Library
Living cells navigate a complex landscape of mechanical cues that influence their behavior
and fate, originating from both internal and external sources. At the molecular level, the …
and fate, originating from both internal and external sources. At the molecular level, the …
Control of cardiac contraction by sodium: Promises, reckonings, and new beginnings
DW Hilgemann - Cell Calcium, 2020 - Elsevier
Several generations of cardiac physiologists have verified that basal cardiac contractility
depends strongly on the transsarcolemmal Na gradient, and the underlying molecular …
depends strongly on the transsarcolemmal Na gradient, and the underlying molecular …
Disruption of transverse‐tubular network reduces energy efficiency in cardiac muscle contraction
Aim Altered organization of the transverse‐tubular network is an early pathological event
occurring even prior to the onset of heart failure. Such t‐tubular remodelling disturbs the …
occurring even prior to the onset of heart failure. Such t‐tubular remodelling disturbs the …