SERCA2a: a key protein in the Ca2+ cycle of the heart failure

L Zhihao, N Jingyu, L Lan, S Michael, G Rui, B Xiyun… - Heart failure …, 2020 - Springer
Abstract Calcium ion (Ca 2+) cycle plays a crucial role in the contraction and relaxation of
cardiomyocytes. The sarcoplasmic reticulum (SR) acts as an organelle for storing Ca 2+ …

Ca2+ mishandling and mitochondrial dysfunction: a converging road to prediabetic and diabetic cardiomyopathy

C Jaquenod De Giusti, J Palomeque… - Pflügers Archiv-European …, 2022 - Springer
Diabetic cardiomyopathy is defined as the myocardial dysfunction that suffers patients with
diabetes mellitus (DM) in the absence of hypertension and structural heart diseases such as …

Calcium‐calmodulin‐dependent protein kinase mediates the intracellular signalling pathways of cardiac apoptosis in mice with impaired glucose tolerance

M Federico, EL Portiansky, L Sommese… - The Journal of …, 2017 - Wiley Online Library
Key points Spontaneous sarcoplasmic reticulum (SR) Ca2+ release events increased in
fructose‐rich diet mouse (FRD) myocytes vs. control diet (CD) mice, in the absence of …

Unbalance Between Sarcoplasmic Reticulum Ca2 + Uptake and Release: A First Step Toward Ca2 + Triggered Arrhythmias and Cardiac Damage

M Federico, CA Valverde, A Mattiazzi… - Frontiers in …, 2020 - frontiersin.org
The present review focusses on the regulation and interplay of cardiac SR Ca2+ handling
proteins involved in SR Ca2+ uptake and release, ie, SERCa2/PLN and RyR2. Both RyR2 …

Ablation of phospholamban rescues reperfusion arrhythmias but exacerbates myocardium infarction in hearts with Ca2+/calmodulin kinase II constitutive …

CA Valverde, G Mazzocchi, MN Di Carlo… - Cardiovascular …, 2019 - academic.oup.com
Abstract Aims Abnormal Ca2+ release from the sarcoplasmic reticulum (SR), associated with
Ca2+-calmodulin kinase II (CaMKII)-dependent phosphorylation of RyR2 at Ser2814, has …

Istaroxime treatment ameliorates calcium dysregulation in a zebrafish model of phospholamban R14del cardiomyopathy

SM Kamel, CJM van Opbergen, CD Koopman… - Nature …, 2021 - nature.com
Abstract The heterozygous Phospholamban p. Arg14del mutation is found in patients with
dilated or arrhythmogenic cardiomyopathy. This mutation triggers cardiac contractile …

Ca2+/calmodulin-dependent kinase II-dependent regulation of atrial myocyte late Na+ current, Ca2+ cycling, and excitability: a mathematical modeling study

B Onal, D Gratz, TJ Hund - American Journal of Physiology …, 2017 - journals.physiology.org
Atrial fibrillation (AF) affects more than three million people per year in the United States and
is associated with high morbidity and mortality. Both electrical and structural remodeling …

Determinants of Ca2+ release restitution: Insights from genetically altered animals and mathematical modeling

A Cely-Ortiz, JI Felice, LA Díaz-Zegarra… - Journal of general …, 2020 - rupress.org
Each heartbeat is followed by a refractory period. Recovery from refractoriness is known as
Ca2+ release restitution (CRR), and its alterations are potential triggers of Ca2+ …

Conditional up-regulation of SERCA2a exacerbates RyR2-dependent ventricular and atrial arrhythmias

B Liu, Q Lou, H Smith, F Velez-Cortes… - International journal of …, 2020 - mdpi.com
Ryanodine receptor 2 (RyR2) and SERCA2a are two major players in myocyte calcium (Ca)
cycling that are modulated physiologically, affected by disease and thus considered to be …

When signalling goes wrong: pathogenic variants in structural and signalling proteins causing cardiomyopathies

M Ehsan, H Jiang, K L. Thomson… - Journal of Muscle …, 2017 - Springer
Cardiomyopathies are a diverse group of cardiac disorders with distinct phenotypes,
depending on the proteins and pathways affected. A substantial proportion of …