Results 161 to 170 of about 81,793 (268)

Small‐conductance Ca2⁺‐activated K⁺ channels in cardiac excitation–contraction coupling: Bridging mitochondria, sarcolemma and antiarrhythmic therapy

The Journal of Physiology, EarlyView.
Abstract figure legend Mitochondrial SK channel enhancement reduces cardiac arrhythmia trigger. Spontaneous sarcoplasmic reticulum (SR) Ca2+ release via hyperactive RyR2s underlies an increased arrhythmia trigger, promoting early and delayed afterdepolarizations during stress. Hyperactive RyR2s causes rise in cytosolic [Ca2+] during diastole. Clearance
Dmitry Terentyev, Alexey V. Glukhov, Vladimir Bogdanov, Aleksei S. Averin, Roland Veress, Bum‐Rak Choi, Shanna Hamilton, Andriy E. Belevych   +7 more
wiley   +1 more source

Myocardial Natriuretic Peptides and Oxygen Metabolism in Heart Failure. [PDF]

Card Fail Rev
Arjamaa O.
europepmc   +1 more source

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

The 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, Thomas Boulin, Maëlle Jospin, Alexandre Janin, Gilles Millat, Philippe Chevalier, Olga Andrini   +6 more
wiley   +1 more source

Effect of VSOR/VRAC blocker tamoxifen on contractile activity of primary neonatal cardiomyocytes and isolated perfused heart. [PDF]

BMC Res Notes
Maksimcheva GV, Oljaev ND, Mansurov MM, Fayziev DD, Tsiferova NA, Merzlyak PG, Kurbannazarova RS, Abdullaev IF, Sabirov RZ.   +8 more
europepmc   +1 more source

Severe obesity in human HFpEF alters contractile protein function and organization. [PDF]

Science
Jani VP, Rhodehamel M, Fenwick AJ, Ma W, Fisher E, Giannakopoulos MT, Moon S, Castillo RL, Kennedy LM, Irving TC, Tardiff JC, Murphy E, Chaerkady R, Wang Q, Barry ME, Hahn VS, Sharma K, Margulies KB, Bedi KC, Cammarato A, Kass DA.   +20 more
europepmc   +1 more source

Mitochondrial physiology in cardiac muscle of deer mice native to high altitude

The Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude deer mice exhibited evolved changes in mitochondrial energy metabolism and reactive oxygen species (ROS) management that may support cardiac performance under cold hypoxic conditions. High‐altitude mice had increased activity of lactate dehydrogenase (LDH) in the heart, probably enhancing the capacity for lactate ...
Ranim Saleem, Samuel G. Robichaud, Simon G. Lamarre, Graham R. Scott   +3 more
wiley   +1 more source

Inhibition of Cyclophilin D Rescues Cardiac Function and Bioenergetic Defects Caused by Neonatal Hypoxia. [PDF]

JACC Basic Transl Sci
Burris JR, Beutner G, Yee M, Simon BV, Swartz MF, Boudreau KB, Cohen ED, Kulkarni CA, Hasan P, Wang H, de Mesy Bentley KL, Hajnóczky G, Alfieris GM, Small EM, Brookes PS, O'Reilly MA, Porter GA.   +16 more
europepmc   +1 more source

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

The 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, Chenchen Zhang, Mengying Xu, YoonYoung Choi, Davi Sidarta‐Oliveira, Ruirui Dong, Xinyu Hu, Enrique M. Toledo, Cesar A. Prada‐Medina, Finbar Argus, Kun Liu, Mingyu Li, Linna Zhou, Hagan Bayley, Corey Smith, Chris Denning, Ana I. Domingos, Guoliang Hao, Dan Li, David J. Paterson   +19 more
wiley   +1 more source

Spatio-temporal targeting of cardiac cells with lipid nanoparticles after myocardial infarction. [PDF]

J Mol Cell Cardiol Plus
Harper RL, Farrugia GE, Krstevski C, Alexander N, Raffaut SR, Harrison T, Thomas A, Kiriazis H, Dogra A, Vidallon MLP, Wang X, Chang H, Donner DG, Lelliott PM, Pinto AR.   +14 more
europepmc   +1 more source

Electrodiffusion in cardiac intercalated disc nanostructures alters cell–cell action potential transmission via ephaptic coupling: A model study

The Journal of Physiology, EarlyView.
Abstract figure legend Ephaptic phenomena in a high‐resolution model of the cardiac intercalated disc. Meshed representation of a tortuous intercalated disc that was generated based on electron and super‐resolution microscopy data. Na+ channels (red) and gap junctions (green) are heterogeneously distributed, with additional regions of reduced ion ...
Ena Ivanovic, Marina Vannucci, Nicolae Moise, Seth H. Weinberg, Jan P. Kucera   +4 more
wiley   +1 more source