Results 141 to 150 of about 42,516 (245)

Alterations of sarcoplasmic reticulum-mediated Ca<sup>2+</sup> uptake in a model of premature ventricular contraction (PVC)-induced cardiomyopathy. [PDF]

open access: yesMol Cell Biochem, 2023
Balderas-Villalobos J   +9 more
europepmc   +1 more source

Demonstration of beat‐to‐beat, on‐demand ATP synthesis in ventricular myocytes reveals sex‐specific mitochondrial and cytosolic dynamics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Beat‐locked mitochondrial ATP transients reveal modular, sex‐specific bioenergetic control during excitation–contraction coupling. A, each action potential activates L‐type CaV1.2 channels, producing a Ca2+ influx that triggers ryanodine receptors (RyR2) and elicits SR Ca2+ release.
Paula Rhana   +2 more
wiley   +1 more source

Ultrastructure analysis of mitochondria, lipid droplet and sarcoplasmic reticulum apposition in human heart failure. [PDF]

open access: yesJ Mol Cell Cardiol Plus
Latchman NR   +5 more
europepmc   +1 more source

Human‐derived cardiac‐neural microtissues reveal catecholaminergic polymorphic ventricular tachycardia is also a disease of the sympathetic neuron

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic diagram illustrating the proposed pathway in which regulatory defects might occur in sympathetic neurons derived from hiPSC in catecholaminergic polymorphic ventricular tachycardia (CPVT). Specifically, enhanced calcium transients appeared to derive from three sources: enhanced membrane excitability (due to loss of ...
Ni Li   +19 more
wiley   +1 more source

Highly Oligomeric DRP1 Strategic Positioning at Mitochondria-Sarcoplasmic Reticulum Contacts in Adult Murine Heart Through ACTIN Anchoring. [PDF]

open access: yesCells
Fernandez-Sanz C   +11 more
europepmc   +1 more source

Kir2.1 dysfunction at the sarcolemma and the sarcoplasmic reticulum causes arrhythmias in a mouse model of Andersen-Tawil syndrome type 1. [PDF]

open access: yesNat Cardiovasc Res, 2022
Macías Á   +12 more
europepmc   +1 more source

Intercalated disk structure, tissue heterogeneity and ion channel distribution modulate conduction and local calcium influx

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A, three‐dimensional representation of cardiac intercalated disk, reduced to a 100‐partition, computationally efficient network representation. B, ion dynamics within intercalated disk extracellular cleft space. C, rapid pacing leads to localized conduction block in tissue with regions of perturbed intercalated disk (ID ...
Nicolae Moise   +6 more
wiley   +1 more source

Modeling sarcoplasmic reticulum Ca2+ in rat cardiomyocytes. [PDF]

open access: yesBiophys Rep
Su Y   +9 more
europepmc   +1 more source

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