Results 151 to 160 of about 140,542 (289)

Impaired Dynamic Sarcoplasmic Reticulum Ca Buffering in Autosomal Dominant CPVT2. [PDF]

open access: yesCirc Res, 2022
Wleklinski MJ   +7 more
europepmc   +1 more source

An age‐associated decline in the role of the sarcoplasmic reticulum and associated calcium‐handling proteins sets the pace for sinoatrial node function

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Stable, responsive pacemaking in the sinoatrial node is driven by the activity of the funny current (membrane clock), interplay of calcium cycling and release from the sarcoendoplasmic reticulum with depolarising sodium‐calcium exchange current (calcium clock). With increasing age, key proteins associated with calcium cycling are
Sandra A. Jones   +2 more
wiley   +1 more source

The interplay between dynamic regulation of ion‐channel gating and trafficking in cardiac arrhythmogenesis

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Cardiac cellular electrophysiology is modulated by multiple factors, including temperature, extracellular K+, heart rate/pacing frequency, and drugs. These modulators can have distinct effects on ion‐channel gating and transcription/trafficking over time.
Stefan Meier   +3 more
wiley   +1 more source

Kinematic‐calcium loops unravel impaired excitation–contraction coupling in MELAS‐affected cardioids

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Representation of kinematic and calcium transient loop with respect to traditional time coplotting. Abstract Impaired Ca2+ handling, and in particular leakage from the sarcoplasmic reticulum, is a critical mechanism in metabolic diseases affecting the heart.
Margherita Burattini   +7 more
wiley   +1 more source

Disruption of mitochondria-sarcoplasmic reticulum microdomain connectomics contributes to sinus node dysfunction in heart failure. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Ren L   +19 more
europepmc   +1 more source

Multiscale mechanistic modelling of heterogeneity in cardiac sub‐cellular calcium handling accounting for variable t‐system density

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Illustration of spatial calcium dynamics (left panels) and the state cycle approximation (middle panel) that enables reduced simulation of spatially dependent dynamics without explicit description of space (right panels). The selected example here illustrates a spontaneous calcium wave, showing temporal snapshots of local calcium
Michael A Colman   +2 more
wiley   +1 more source

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