Results 211 to 220 of about 103,145 (303)

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

Stress-Induced calcium mishandling in cardiac (Patho)physiology. [PDF]

Cell Mol Life Sci
Bare DJ, Ai X.
europepmc   +1 more source

Uncertainty quantification via polynomial chaos expansion of myocardial fibre orientation and cardiac activation patterns

The Journal of Physiology, EarlyView.
Abstract figure legend Graphical representation of methods. We implemented three biventricular geometric models (Zenger et al., 2020) with rule‐based myocardial fibre orientations (Bayer et al., 2018). We evaluated variability in the fibre orientation via four sets of parameter distributions to determine the role of the primary and imbrication angles ...
Lindsay C. R. Tanner, Anna Busatto, Jake A. Bergquist, Wilson W. Good, Brian Zenger, Gernot Plank, Akil Narayan, Karli Gillette, Rob S. MacLeod   +8 more
wiley   +1 more source

Advances in Non-Invasive Myocardial Stiffness Assessment and Clinical Applications in Hypertrophic Cardiomyopathy. [PDF]

Rev Cardiovasc Med
Gao Y, Qi N, Gao H, Deng Y, Liu Y.
europepmc   +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

Hyperglycaemia‐induced reactive oxygen species production in cardiac ventricular myocytes differs among mammals

The Journal of Physiology, EarlyView.
Abstract figure legend In rat and human adult ventricular myocytes, acute hyperglyceaemia (Glucose) causes increased glucose uptake (via GLUT) leading to O‐GlcNAcylation of CaMKII at Ser280, such that CaMKII activates NADPH oxidase 2 (NOX2) to increase cytosolic reactive oxygen species (ROS). That perturbs the ROS to Antioxidant (AntiOx) balance.
Shan Lu, Maria J. Baier, Risto‐Pekka Polonen, Zhandi Liao, Jody L. Martin, Kenneth S. Ginsburg, Julian Mustroph, Donald M. Bers   +7 more
wiley   +1 more source

High Burden of Premature Ventricular Contractions Upregulates Transcriptional Markers of Inflammation and Promotes Adverse Cardiac Remodeling Linked to Cardiomyopathy. [PDF]

Circ Arrhythm Electrophysiol
Medina-Contreras JML, Balderas-Villalobos J, Gomez-Arroyo J, Hayles J, Kaszala K, Tan AY, Samsó M, Huizar JF, Eltit JM.   +8 more
europepmc   +1 more source

Isolation of cardiac myocytes and measurement of myocyte shortening v1 [PDF]

, 2019
Gustavo Marchini, Ismar N. Cestari, Idágene A. Cestari   +2 more
openaire   +1 more source

Prediabetic cardiomyopathy is attenuated by hypothalamic PVN oxytocin neuron activation

The Journal of Physiology, EarlyView.
Abstract figure legend A long‐term high‐fat, high‐fructose diet induces prediabetes with insulin resistance, hyperinsulinaemia, elevated triglycerides and metabolic‐associated steatotic liver disease (MASLD) in male rats. Animals developed prediabetic cardiomyopathy characterized by diastolic dysfunction, interstitial fibrosis and tachycardia ...
Anna Nilsson, Joan Escobar, Kira Kuraoka, Ian Venter, Cielo A. Carnate, Matthew W. Kay, David Mendelowitz, Kathryn J. Schunke   +7 more
wiley   +1 more source

Analysis of the effects of dapagliflozin on cardiac myocyte injury markers and left ventricular diastolic function in heart failure patients with preserved ejection fraction after percutaneous coronary intervention. [PDF]

Eur J Transl Myol
Lei W, Min H, Yue C, Gejun Z, Chao W, Qian L.   +5 more
europepmc   +1 more source