Results 111 to 120 of about 5,279,387 (270)

Neurocardiac crosstalk in inherited cardiac arrhythmias and cardiomyopathy

The Journal of Physiology, EarlyView.
Abstract figure legend In inherited cardiac arrhythmias and cardiomyopathy, arrhythmias are typically triggered by autonomic nervous system activity. Genetic mutations linked to these conditions cause pro‐arrhythmic alterations in both cardiomyocytes and neurons, with their pathophysiological crosstalk likely amplifying the manifestation of the disease.
Carol Ann Remme, Molly O'Reilly
wiley   +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

A signal processing analysis of Purkinje cells in vitro

Frontiers in Neural Circuits, 2010
Cerebellar Purkinje cells in vitro fire recurrent sequences of Sodium and Calcium spikes. Here, we analyze the Purkinje cell using harmonic analysis, and our experiments reveal that its output signal is comprised of three distinct frequency bands, which ...
Ze'ev R Abrams, Ze'ev R Abrams, Ajithkumar Warrier, Dirk Trauner, Xiang Zhang, Xiang Zhang   +5 more
doaj   +1 more source

Dendritic spike induction of postsynaptic cerebellar LTP [PDF]

, 2008
The architecture of parallel fiber (PF) axons contacting cerebellar Purkinje neurons (PNs) retains spatial information over long distances. PF synapses can trigger local dendritic calcium spikes, but whether and how this calcium signal leads to plastic ...
Marco Canepari, Kaspar E. Vogt
core  

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery, Jacob A. Miller, Steven Poelzing, Seth H. Weinberg   +3 more
wiley   +1 more source

Activation of a Temporal Memory in Purkinje Cells by the mGluR7 Receptor.

, 2015
SummaryCerebellar Purkinje cells can learn to respond to a conditioned stimulus with an adaptively timed pause in firing. This response was usually ascribed to long-term depression of parallel fiber to Purkinje cell synapses but has recently been shown ...
Carlsson, Hannes A E, Hannes A.E. Carlsson, Rasmussen, Anders, Johansson, Fredrik,, Rasmussen, Anders,, Fredrik Johansson, Hesslow, Germund, Johansson, Fredrik, Yeo, Christopher H, Hesslow, Germund,, Anders Rasmussen, Germund Hesslow, Christopher H. Yeo, Lund University.   +13 more
core   +1 more source

Dysregulated TIE‐2 expression in Alzheimer's disease: Further considerations on regional specificity and shedding evidence

Brain Pathology, EarlyView.
Shi‐qi Zhang, Meichen Liu
wiley   +1 more source

Panoramic voltage‐sensitive optical mapping of contracting hearts using cooperative multiview motion tracking with 12 cameras

The Journal of Physiology, EarlyView.
Abstact figure legend A panoramic 3D optical mapping system was developed, enabling imaging of action potential waves across the entire strongly deforming ventricular surface of beating isolated hearts. The system comprises 12 high‐speed cameras and a soccerball‐shaped imaging chamber with 48 light‐emitting diodes (LEDs).
Shrey Chowdhary, Jan Lebert, Shai Dickman, Mason Manetta, Charles Gordon, Jan Christoph   +5 more
wiley   +1 more source

Membrane excitability and fear conditioning in cerebellar Purkinje cell

, 2006
In a previous study it has been demonstrated that fear conditioning is associated with a long-lasting potentiation of parallel fiber to Purkinje cell synaptic transmission in vermal lobules V and VI.
Tempia, F., Sacchetti, B., Zhu, Lan, Scelfo, B., Strata, Piergiorgio, Tempia, Filippo, Strata, Pier Giorgio, Sacchetti, Benedetto   +7 more
core   +1 more source

Longer action potential duration in the Purkinje network than in the ventricular myocardium delays retrograde activation of the human His‐Purkinje system

The Journal of Physiology, EarlyView.
Abstract figure legend Activation time (AT) maps from right ventricular apical pacing in a human ventricles model with longer action potential duration in the His‐Purkinje system (HPS) than in the myocardium (MYO). For pacing with a long S1S2 coupling interval (CI), the AT from the myocardial pacing site to the first AT of the HPS (ATMYO) is longer ...
Jason D. Bayer, Edward J. Vigmond, Ruben Coronel, Chantal E. Conrath   +3 more
wiley   +1 more source