Mechanisms and physiological implications of cooperative gating of clustered ion channels

RE Dixon, MF Navedo, MD Binder… - Physiological …, 2022 - journals.physiology.org
Ion channels play a central role in the regulation of nearly every cellular process. Dating
back to the classic 1952 Hodgkin–Huxley model of the generation of the action potential, ion …

Mechanisms of vascular smooth muscle contraction and the basis for pharmacologic treatment of smooth muscle disorders

FV Brozovich, CJ Nicholson, CV Degen, YZ Gao… - Pharmacological …, 2016 - ASPET
The smooth muscle cell directly drives the contraction of the vascular wall and hence
regulates the size of the blood vessel lumen. We review here the current understanding of …

[HTML][HTML] Ion channels in the heart

DC Bartos, E Grandi, CM Ripplinger - Comprehensive physiology, 2015 - ncbi.nlm.nih.gov
Optimal cardiac function depends on proper timing of excitation and contraction in various
regions of the heart, as well as on appropriate heart rate. This is accomplished via …

Ca2+ dynamics in interstitial cells: foundational mechanisms for the motor patterns in the gastrointestinal tract

KM Sanders, BT Drumm, CA Cobine… - Physiological …, 2024 - journals.physiology.org
The gastrointestinal (GI) tract displays multiple motor patterns that move nutrients and
wastes through the body. Smooth muscle cells (SMCs) provide the forces necessary for GI …

Animal models to study cardiac arrhythmias

DJ Blackwell, J Schmeckpeper… - Circulation research, 2022 - Am Heart Assoc
Cardiac arrhythmias are a significant cause of morbidity and mortality worldwide, accounting
for 10% to 15% of all deaths. Although most arrhythmias are due to acquired heart disease …

AKAP150-dependent cooperative TRPV4 channel gating is central to endothelium-dependent vasodilation and is disrupted in hypertension

SK Sonkusare, T Dalsgaard, AD Bonev… - Science …, 2014 - science.org
Endothelial cell dysfunction, characterized by a diminished response to endothelial cell–
dependent vasodilators, is a hallmark of hypertension. TRPV4 channels play a major role in …

Murine electrophysiological models of cardiac arrhythmogenesis

CLH Huang - Physiological reviews, 2017 - journals.physiology.org
Cardiac arrhythmias can follow disruption of the normal cellular electrophysiological
processes underlying excitable activity and their tissue propagation as coherent wavefronts …

Ser1928 phosphorylation by PKA stimulates the L-type Ca2+ channel CaV1.2 and vasoconstriction during acute hyperglycemia and diabetes

MA Nystoriak, M Nieves-Cintrón, T Patriarchi… - Science …, 2017 - science.org
Hypercontractility of arterial myocytes and enhanced vascular tone during diabetes are, in
part, attributed to the effects of increased glucose (hyperglycemia) on L-type CaV1. 2 …

Graded Ca2+/calmodulin-dependent coupling of voltage-gated CaV1.2 channels

RE Dixon, CM Moreno, C Yuan, X Opitz-Araya… - Elife, 2015 - elifesciences.org
In the heart, reliable activation of Ca2+ release from the sarcoplasmic reticulum during the
plateau of the ventricular action potential requires synchronous opening of multiple CaV1. 2 …

Channelopathy pathogenesis in autism spectrum disorders

G Schmunk, JJ Gargus - Frontiers in genetics, 2013 - frontiersin.org
Autism spectrum disorder (ASD) is a syndrome that affects normal brain development and is
characterized by impaired social interaction as well as verbal and non-verbal …