Results 41 to 50 of about 279,139 (356)
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Cardiac Arrhythmia and Geomagnetic Activity [PDF]
, 2006 Background: The purpose of this paper is a review of a number of studies considering links between life threatening cardiac arrhythmias, sudden cardiac death (SCD) and the level of environmental physical activity factors like geomagnetic activity (GMA)
Stoupel, E
core +2 more sources
Acute echocardiographic effects of sotalol on ventricular systolic function in dogs with ventricular arrhythmias. [PDF]
, 2018 BackgroundSotalol is a commonly used antiarrhythmic drug that may alter ventricular function.ObjectiveTo determine the effect of sotalol on echocardiographic indices of ventricular systolic function in dogs with ventricular arrhythmias.AnimalsThirty-five
Anderson +30 more
core +2 more sources
Reduced Muscular Carnosine in Proximal Myotonic Myopathy—A Pilot 1H‐MRS Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Myotonic dystrophy type 2 (proximal myotonic myopathy, PROMM) is a progressive multisystem disorder with muscular symptoms (proximal weakness, pain, myotonia) and systemic manifestations such as diabetes mellitus, cataracts, and cardiac arrhythmias.
Alexander Gussew +11 more
wiley +1 more source
ChildrenBackground. Left ventricular hypertrabeculation (LVHT) is a myocardial disorder with different clinical manifestations, from total absence of symptoms to heart failure, arrhythmias, sudden cardiac death (SCD), and thromboembolic events. It is challenging
Irma Battipaglia +7 more
doaj +1 more source
Frequency of Cardiac Arrhythmias in Hypertensive Patients
Pakistan Armed Forces Medical Journal, 2022 Objective: To determine the frequency of cardiac arrhythmias in hypertensive patients. Study Design: Analytical Cross -sectional study. Place & Duration of Study: Tertiary Cardiac Center, Lahore Pakistan from Jan 2021 to Dec2021. Methodology:
Muhammad Naeem Tariq +9 more
doaj +1 more source
Global alternans instability and its effect on non-linear wave propagation : dynamical Wenckebach block and self terminating spiral waves [PDF]
, 2016 The main mechanism of formation of reentrant cardiac arrhythmias is via formation of waveblocks at heterogeneities of cardiac tissue. We report that heterogeneity and the area of waveblock can extend itself in space and can result formation of new ...
Dawyndt, Peter +3 more
core +1 more source
Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani +8 more
wiley +1 more source
Frontiers in Cardiovascular Medicine, 2018 In spite of the widespread role of calmodulin (CaM) in cellular signaling, CaM mutations lead specifically to cardiac manifestations, characterized by remarkable electrical instability and a high incidence of sudden death at young age.
Beatrice Badone +8 more
doaj +1 more source
Frontiers in Pharmacology, 2022 Brugada syndrome (BrS) is an inherited cardiac arrhythmia characterized by ST-elevation, negative T-wave, and a high risk of sudden cardiac death (SCD) due to ventricular tachycardia.
Elena Zaklyazminskaya +7 more
doaj +1 more source