Electrophysiological mechanisms underlying T-wave alternans and their role in arrhythmogenesis

T You, C Luo, K Zhang, H Zhang - Frontiers in physiology, 2021 - frontiersin.org
T-wave alternans (TWA) reflects every-other-beat alterations in the morphology of the
electrocardiogram ST segment or T wave in the setting of a constant heart rate, hence, in the …

Proarrhythmic remodeling of calcium homeostasis in cardiac disease; implications for diabetes and obesity

S Hamilton, D Terentyev - Frontiers in physiology, 2018 - frontiersin.org
A rapid growth in the incidence of diabetes and obesity has transpired to a major heath
issue and economic burden in the postindustrial world, with more than 29 million patients …

Cardiac ryanodine receptor calcium release deficiency syndrome

B Sun, J Yao, M Ni, J Wei, X Zhong, W Guo… - Science translational …, 2021 - science.org
Cardiac ryanodine receptor (RyR2) gain-of-function mutations cause catecholaminergic
polymorphic ventricular tachycardia, a condition characterized by prominent ventricular …

Interleukin-6-Mediated-Ca2+ Handling Abnormalities Contributes to Atrial Fibrillation in Sterile Pericarditis Rats

J Liao, S Zhang, S Yang, Y Lu, K Lu, Y Wu… - Frontiers in …, 2021 - frontiersin.org
Pre-existing Ca2+ handling abnormalities constitute the arrhythmogenic substrate in
patients developing postoperative atrial fibrillation (POAF), a common complication after …

Dapagliflozin reduces the vulnerability of rats with pulmonary arterial hypertension-induced right heart failure to ventricular arrhythmia by restoring calcium handling

J Wu, T Liu, S Shi, Z Fan, R Hiram, F Xiong… - Cardiovascular …, 2022 - Springer
Background Malignant ventricular arrhythmia (VA) is a major contributor to sudden cardiac
death (SCD) in patients with pulmonary arterial hypertension (PAH)-induced right heart …

[HTML][HTML] Altered calcium handling produces reentry-promoting action potential alternans in atrial fibrillation–remodeled hearts

T Liu, F Xiong, XY Qi, J Xiao, L Villeneuve, I Abu-Taha… - JCI insight, 2020 - ncbi.nlm.nih.gov
Atrial fibrillation (AF) alters atrial cardiomyocyte (ACM) Ca 2+ handling, promoting ectopic
beat formation. We examined the effects of AF-associated remodeling on Ca 2+-related …

Ca2+-CaM Dependent Inactivation of RyR2 Underlies Ca2+ Alternans in Intact Heart

J Wei, J Yao, D Belke, W Guo, X Zhong, B Sun… - Circulation …, 2021 - Am Heart Assoc
Rationale: Ca2+ alternans plays an essential role in cardiac alternans that can lead to
ventricular fibrillation, but the mechanism underlying Ca2+ alternans remains undefined …

Role of Reduced Sarco-Endoplasmic Reticulum Ca2+-ATPase Function on Sarcoplasmic Reticulum Ca2+ Alternans in the Intact Rabbit Heart

L Wang, RC Myles, IJ Lee, DM Bers… - Frontiers in …, 2021 - frontiersin.org
Sarcoplasmic reticulum (SR) Ca2+ cycling is tightly regulated by ryanodine receptor (RyR)
Ca2+ release and sarco-endoplasmic reticulum Ca2+-ATPase (SERCA) Ca2+ uptake …

MicroRNA‐129‐1‐3p protects cardiomyocytes from pirarubicin‐induced apoptosis by down‐regulating the GRIN2D‐mediated Ca2+ signalling pathway

Q Li, M Qin, Q Tan, T Li, Z Gu… - Journal of Cellular and …, 2020 - Wiley Online Library
Pirarubicin (THP), an anthracycline anticancer drug, is a first‐line therapy for various solid
tumours and haematologic malignancies. However, THP can cause dose‐dependent …

[HTML][HTML] Cardioprotective effects of dantrolene in doxorubicin-induced cardiomyopathy in mice

MA Azam, P Chakraborty, MM Bokhari, K Dadson, B Du… - Heart Rhythm O2, 2021 - Elsevier
Background Doxorubicin (Dox) is a potent chemotherapeutic agent, but its usage is limited
by dose-dependent cardiotoxicity. Intracellular calcium dysregulation has been reported to …