Results 91 to 100 of about 1,344,270 (316)

Notable Pacemaker Shift in the Sinoatrial Node After Administration of Isoproterenol [PDF]

, 2022
Kohei Iwasa, Masato Okada, Koji Tanaka, Yuko Hirao, Shinichi Harada, Naoko Miyazaki, Nobuaki Tanaka   +6 more
openalex   +1 more source

Overexpression of a Neuronal Type Adenylyl Cyclase (Type 8) in Sinoatrial Node Markedly Impacts Heart Rate and Rhythm

Frontiers in Neuroscience, 2019
Heart rate (HR) and HR variability (HRV), predictors of over-all organism health, are widely believed to be driven by autonomic input to the sinoatrial node (SAN), with sympathetic input increasing HR and reducing HRV. However, variability in spontaneous
Jack M. Moen, Michael G. Matt, Christopher Ramirez, K. Tarasov, K. Chakir, Yelena S. Tarasova, Y. Lukyanenko, K. Tsutsui, O. Monfredi, C. Morrell, Syevda Tagirova, Y. Yaniv, Thanh V. Huynh, K. Pacak, I. Ahmet, E. Lakatta   +15 more
semanticscholar   +1 more source

Electrocardiography in horses, part 2: how to read the equine ECG [PDF]

, 2010
The equine practitioner is faced with a wide variety of dysrhythmias, of which some are physiological. The recording of an exercise electrocardiogram (ECG) can help distinguish between physiological and pathological dysrhythmias, underlining the ...
De Clercq, Dominique, Decloedt, Annelies, Deprez, Piet, Sys, Stanislas, van Loon, Gunther, Verheyen, Tinne   +5 more
core  

Emotional intelligence buffers the effect of physiological arousal on dishonesty [PDF]

, 2018
We studied the emotional processes that allow people to balance two competing desires: benefitting from dishonesty and keeping a positive self-image. We recorded physiological arousal (skin conductance and heart rate) during a computer card game in which
A Bechara, A Furnham, A Pittarello, A Pittarello, A Tenbrunsel, Andrea Pittarello, AR Damasio, Beatrice Conte, BM Appelhans, E Rubaltelli, EJ Austin, Enrico Rubaltelli, G Coricelli, G Grolleau, G Hochman, GG Berntson, GW Allport, H Eisenbarth, J Gu, JF Brosschot, JM Wilkinson, JS Cameron, JT Cacioppo, KV Petrides, KV Petrides, KV Petrides, KV Petrides, LK Treviño, M Mikolajczak, M Mikolajczak, M Rosenberg, Marta Caserotti, MC Kern, ME Schweitzer, MM Bradley, N Mazar, P Slovic, R Barkan, R Teper, R Teper, RA Dienstbier, RJ Barry, RJ Croft, RJ Wright, RS Lazarus, S Ayal, S Ayal, S Cote, S Laborde, S Schindler, S Shalvi, S Shalvi, S Shalvi, S Shalvi, Sara Scrimin, SD Kreibig, W Boucsein   +56 more
core   +2 more sources

Cardiac‐specific Kv1.1 deficiency alters cardiomyocyte electrophysiology without modifying overall cardiac function or arrhythmia susceptibility

Experimental Physiology, EarlyView.
Abstract The leading cause of epilepsy‐related mortality is sudden unexpected death in epilepsy (SUDEP), resulting from seizure‐induced cardiorespiratory arrest by mechanisms that remain unresolved. Mutations in ion channel genes expressed in both brain and heart represent SUDEP risk factors because they can disrupt neural and cardiac rhythms ...
Kelsey Halvorson, Man Si, Krystle Trosclair, Ellen Aughenbaugh, Maxine Parkinson, Nicole M. Gautier‐Hall, Megan Watts, Frederica Kizek, Md. Shenuarin Bhuiyan, Paari Dominic, Kathryn A. Hamilton, Edward Glasscock   +11 more
wiley   +1 more source

Glial cells in the heart: Implications for their roles in health and disease

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of cardiac autonomic ganglia within epicardial fat pads (posterior heart surface shown), containing vagal postganglionic neuron cell bodies, associated fibres, and glia. These ganglia receive cholinergic input from vagal preganglionic neurons and adrenergic input from sympathetic postganglionic neurons ...
Svetlana Mastitskaya, Rimma Dugarova, Shefeeq M. Theparambil   +2 more
wiley   +1 more source

Acute Isolation of Cells from Murine Sino-atrial Node

Bio-Protocol, 2020
The cardiac conduction system allows the synchronized propagation of electrical activity through heart muscle. This is initiated by the spontaneous activity of the specialized pacemaker cells of the sino-atrial node (SAN).
Qadeer Aziz, Muriel Nobles, Andrew Tinker   +2 more
doaj   +1 more source

Metabolic syndrome remodels electrical activity of the sinoatrial node and produces arrhythmias in rats. [PDF]

PLoS ONE, 2013
In the last ten years, the incidences of metabolic syndrome and supraventricular arrhythmias have greatly increased. The metabolic syndrome is a cluster of alterations, which include obesity, hypertension, hypertriglyceridemia, glucose intolerance and ...
Alondra Albarado-Ibañez, José Everardo Avelino-Cruz, Myrian Velasco, Julián Torres-Jácome, Marcia Hiriart   +4 more
doaj   +1 more source

The cardiac sodium channel displays differential distribution in the conduction system and transmural heterogeneity in the murine ventricular myocardium [PDF]

, 2009
Cardiac sodium channels are responsible for conduction in the normal and diseased heart. We aimed to investigate regional and transmural distribution of sodium channel expression and function in the myocardium.
A. A. M. Wilde, A. O. Verkerk, B. P. Scicluna, C. A. Remme, C. Annink, C. R. Bezzina, J. M. T. Bakker, M. J. B. den Hoff, M. W. Veldkamp, T. A. B. Veen, V. M. Christoffels, W. M. H. Hoogaars, W. T. J. Aanhaanen   +12 more
core   +3 more sources

Is sodium current present in human sinoatrial node cells?

International Journal of Biological Sciences, 2009
Pacemaker activity of the sinoatrial node has been studied extensively in various animal species, but is virtually unexplored in man. As such, it is unknown whether the fast sodium current (INa) plays a role in the pacemaker activity of the human ...
Arie O. Verkerk, Ronald Wilders, Marcel M.G.J. van Borren, Hanno L. Tan
doaj