Results 41 to 50 of about 3,487 (142)

Changes in motor unit conduction velocity after unilateral lower‐limb suspension and active recovery are correlated with muscle ion channel gene expression

open access: yesExperimental Physiology, EarlyView.
Abstract The effects of muscle disuse on the propagation of action potentials along motor unit (MU) muscle fibres, a key process for effective muscle activation and force generation, remain poorly understood. The aim of this study was to investigate changes in action potential propagation and to identify biological factors influencing these changes ...
Giacomo Valli   +12 more
wiley   +1 more source

Functional expression of inwardly rectifying and ATP‐sensitive potassium channels in human pulmonary artery smooth muscle and endothelial cells

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Inwardly rectifying (Kir2) and ATP‐sensitive (KATP) potassium channels are functionally expressed in human pulmonary artery endothelial and smooth muscle cells. The schematic illustrates how Kir2‐ and KATP‐mediated K+ efflux contributes to VM regulation and pulmonary vascular tone.
Bianca Barreira   +7 more
wiley   +1 more source

Investigation of the Effects of the Short QT Syndrome D172N Kir2.1 Mutation on Ventricular Action Potential Profile Using Dynamic Clamp

open access: yesFrontiers in Pharmacology, 2022
The congenital short QT syndrome (SQTS) is a cardiac condition that leads to abbreviated ventricular repolarization and an increased susceptibility to arrhythmia and sudden death.
Chunyun Du   +9 more
doaj   +1 more source

Caenorhabditis elegans as an in vivo model system for human inherited primary arrhythmia syndromes

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Most genes involved in inherited primary arrhythmia syndromes (IPAS) are conserved in Caenorhabditis elegans, where genetic manipulation enables functional characterization of variants, identification of regulatory proteins, and in vivo drug testing.
Antoine Delinière   +6 more
wiley   +1 more source

Translating cardiovascular ion channel and Ca2+ signalling mechanisms into therapeutic insights

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This white paper integrates mechanistic discoveries across ion channel biology, Ca2+ signalling and multiscale cardiovascular physiology to highlight new opportunities for accelerating research and guiding next‐generation therapies.
Silvia Marchianò   +18 more
wiley   +1 more source

PA-6 inhibits inward rectifier currents carried by V93I and D172N gain-of-function KIR2.1 channels, but increases channel protein expression

open access: yesJournal of Biomedical Science, 2017
Background The inward rectifier potassium current IK1 contributes to a stable resting membrane potential and phase 3 repolarization of the cardiac action potential.
Yuan Ji   +10 more
doaj   +1 more source

Andersen syndrome: an association of periodic paralysis, cardiac arrhythmia and dysmorphic abnormalities [PDF]

open access: yesArquivos de Neuro-Psiquiatria, 2006
Andersen syndrome (AS) is a rare disease characterized by the presence of periodic paralysis (PP), cardiac arrhythmia and dysmorphic abnormalities. We report herein the first Brazilian patient presenting AS who also had obesity, obstructive sleep apnea ...
Célia H. Tengan   +5 more
doaj   +1 more source

Case report: Mexiletine suppresses ventricular arrhythmias in Andersen-Tawil syndrome

open access: yesFrontiers in Cardiovascular Medicine, 2022
It is arduous to determine clinical solutions for Andersen-Tawil syndrome (ATS) in patients intolerant of β-blocker. Here, we present the case of a 7-year-old boy with periodic paralysis and dysmorphic features who experienced syncope four times during ...
Jing Yang   +7 more
doaj   +1 more source

Multi‐Omics Analysis Reveals Sex‐Specific Signatures for BCG Vaccine Efficacy

open access: yesEuropean Journal of Immunology, Volume 56, Issue 2, February 2026.
Sex‐specific pre‐vaccination immune landscapes associated with effective BCG vaccine responses. Male high responders exhibit a monocyte‐enriched, pro‐inflammatory innate immune profile, whereas female high responders display immune signatures associated with enhanced adaptive immune responses. ABSTRACT Vaccines are a cornerstone of global public health,
Qiuyao Zhan   +13 more
wiley   +1 more source

Successful treatment of arrhythmia with β‐blocker and flecainide combination in pregnant patients with Andersen–Tawil syndrome: A case report and literature review

open access: yesAnnals of Noninvasive Electrocardiology, 2021
Andersen–Tawil syndrome (ATS) is a rare disorder characterized by a triad of ventricular arrhythmia (VA), dysmorphic features, and periodic paralysis.
Pongprueth Rujirachun   +4 more
doaj   +1 more source

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