Results 91 to 100 of about 10,498 (222)

Sympathetic stimulation can compensate for hypocalcaemia‐induced bradycardia in human and rabbit sinoatrial node cells

The Journal of Physiology, EarlyView.
Abstract figure legend AC: adenylyl cyclase, APT: adenosine triphosphate, AMP: adenosine monophosphate, cAMP: cyclic adenosine monophosphate, PDE: phosphodiesterase, PKA: protein kinase A, PPT: protein phosphatase, P: phosphorylation, RyR: ryanodine receptor, SERCA: sarcoplasmic/endoplasmic reticulum Ca2+‐adenosine triphosphatase, SR: sarcoplasmic ...
Moritz Linder, Tomas Stary, Gergő Bitay, Norbert Nagy, Axel Loewe   +4 more
wiley   +1 more source

Anesthetizing the Fibrillating Heart. [PDF]

, 2019
See Article Lee et ...
Hanna, Peter, Rajendran, Pradeep S, Shivkumar, Kalyanam, Zhu, Ching   +3 more
core  

Prospects for Creation of Cardioprotective and Antiarrhythmic Drugs Based on Opioid Receptor Agonists [PDF]

, 2016
It has now been demonstrated that the μ, δ(1), δ(2), and κ(1) opioid receptor (OR) agonists represent the most promising group of opioids for the creation of drugs enhancing cardiac tolerance to the detrimental effects of ischemia/reperfusion (I/R ...
Bailey A, Cowan A, Dhawan BN, Emmerson PJ, Fryer RM, Fryer RM, Fryer RM, Genade S, Grekova TI, Gu H, Haddad GG, Hansen DD, Hess L, Hiranuma T, Huh J, Imai N, Kettler D, Khan MG, Kin H, Kiritsy‐Roy JA, Kisin I, Korobov NV., Krazinski BE, Kulbertus H, Lasukova TV, Lasukova TV, Lasukova TV, Lasukova TV, Lasukova TV, Lishmanov AYu, Lishmanov IuB, Lishmanov IuB, Lishmanov YuB, Liu X, Marson L, Maslov LN, Maslov LN, Maslov LN, Maslov LN, Maslov LN, Maslov LN, Maslov LN, Maslov LN, Metelitsa VI, Mikhailova SD, Monassier JP., Musha T, Panova EI., Pei JM, Platonov AA, Poonyachoti S, Pugsley MK, Pyle WG, Robson P., Saeed RW, Schultz JE, Shi E, Solenkova NV, Stefano GB, Sun HT, Ugdyzhekova DS, Varga EV, Wang GY, Wong GT, Zhang Y   +64 more
core   +2 more sources

Mathematical model of the zebrafish ventricular cardiomyocyte action potential and calcium transient

The Journal of Physiology, EarlyView.
Abstract figure legend This study presents the development and validation of the first biophysically detailed computational model of the zebrafish ventricular action potential (AP). The model is based on a human cardiomyocyte framework and reparameterized using published and newly generated patch‐clamp recordings of zebrafish ionic currents.
Ludovica Cestariolo, Zachary D. Long, Arie O. Verkerk, Jose M. Ferrero, T. Alexander Quinn, Jose F. Rodriguez Matas   +5 more
wiley   +1 more source

Subtype-specific differentiation of cardiac pacemaker cell clusters from human induced pluripotent stem cells [PDF]

, 2017
Background: Human induced pluripotent stem cells (hiPSC) harbor the potential to differentiate into diverse cardiac cell types. Previous experimental efforts were primarily directed at the generation of hiPSC-derived cells with ventricular cardiomyocyte ...
Darche, Fabrice F., Draguhn, Andreas, Geschwill, Pascal, Greber, Boris, Katus, Hugo A., Koenen, Michael, Müller-Decker, Karin, Rivinius, Rasmus, Schweizer, Patrick A., Seyler, Claudia, Thomas, Dierk, Ullrich, Nina D., Utikal, Jochen   +12 more
core   +1 more source

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source

Cardiovascular events follow-up analysis in patients with sinus node dysfunction and implanted pacemaker

Российский кардиологический журнал, 2019
Dysfunction of sinus node (DSN) is the syndrome, characterized by symptoms of tissue hypoperfusion and manifestations on the electrocardiogram and could potentially lead to sudden death. The various impact of different types of pacemakers on life quality
E. A. Badykova, M. R. Badykov, V. V. Plechev, I. Sh. Sagitov, I. A. Lakman, N. Sh. Zagidullin   +5 more
doaj   +1 more source

Adenylyl cyclase isoform 1 contributes to sinoatrial node automaticity via functional microdomains

JCI Insight, 2022
Sinoatrial node (SAN) cells are the heart’s primary pacemaker. Their activity is tightly regulated by β-adrenergic receptor (β-AR) signaling. Adenylyl cyclase (AC) is a key enzyme in the β-AR pathway that catalyzes the production of cAMP.
Lu Ren, Phung N. Thai, Raghavender Reddy Gopireddy, Valeriy Timofeyev, Hannah A. Ledford, Ryan L. Woltz, Seojin Park, Jose L. Puglisi, Claudia M. Moreno, Luis Fernando Santana, Alana C. Conti, Michael I. Kotlikoff, Yang Kevin Xiang, Vladimir Yarov-Yarovoy, Manuela Zaccolo, Xiao-Dong Zhang, Ebenezer N. Yamoah, Manuel F. Navedo, Nipavan Chiamvimonvat   +18 more
doaj   +1 more source

Energetic microdomains and the vascular control of neuronal and muscle excitability: Toward a unified model

The Journal of Physiology, EarlyView.
Abstract figure legend The capillary–mitochondria–ion channel (CMIC) axis scales structural resources to match functional workload. (Left) In settings of restricted energetic capacity (e.g. cortical neurons), sparse capillary networks and modest mitochondrial pools set a lower energetic ceiling, sufficient to support phasic, low‐workload excitability. (
L. Fernando Santana, Scott Earley
wiley   +1 more source

Cardiac Pacemaker Dysfunction Arising From Different Studies of Ion Channel Remodeling in the Aging Rat Heart

Frontiers in Physiology, 2020
The function of the sinoatrial node (SAN), the pacemaker of the heart, declines with age, resulting in increased incidence of sinoatrial node dysfunction (SND) in older adults.
Aaazh M. Alghamdi, Aaazh M. Alghamdi, Mark R. Boyett, Jules C. Hancox, Jules C. Hancox, Henggui Zhang, Henggui Zhang, Henggui Zhang   +7 more
doaj   +1 more source