ArticleCirculation. Arrhythmia and electrophysiology2018
Atrial Infarction-Induced Spontaneous Focal Discharges and Atrial Fibrillation in Sheep: Role of Dantrolene-Sensitive Aberrant Ryanodine Receptor Calcium Release.
Article in Circulation. Arrhythmia and electrophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.
- Modulated Calcium Homeostasis and Release Events Under Atrial Fibrillation and Its Risk Factors: A Meta-Analysis.Frontiers in cardiovascular medicine · 2021Pooled it
- Calcium Homeostatic Feedback Control Predicts Atrial Fibrillation Initiation, Remodeling, and Progression.JACC. Clinical electrophysiology · 2025Article
- Insulin mitigates acute ischemia-induced atrial fibrillation and sinoatrial node dysfunction ex vivo.JCI insight · 2024Article
- Metabolic remodelling in atrial fibrillation: manifestations, mechanisms and clinical implications.Nature reviews. Cardiology · 2024Review
- Loose-patch clamp analysis applied to voltage-gated ionic currents following pharmacological ryanodine receptor modulation in murine hippocampal cornu ammonis-1 pyramidal neurons.Frontiers in physiology · 2024Article
- Mouse models of spontaneous atrial fibrillation.Mammalian genome : official journal of the International Mammalian Genome Society · 2023Review
- Critical Link between Calcium Regional Heterogeneity and Atrial Fibrillation Susceptibility in Sheep Left Atria.Journal of clinical medicine · 2023Article
- Effects of Inflammatory Cell Death Caused by Catheter Ablation on Atrial Fibrillation.Journal of inflammation research · 2023Review
- Atrial tachycardia related to atrial infarction treated with catheter ablation: a case report.European heart journal. Case reports · 2022Article
- Emerging Antiarrhythmic Drugs for Atrial Fibrillation.International journal of molecular sciences · 2022Review
- Electrophysiological and histological characterization of atrial scarring in a model of isolated atrial myocardial infarction.Frontiers in physiology · 2022Article
- Fibroblast growth factor homologous factors tune arrhythmogenic late NaV1.5 current in calmodulin binding-deficient channels.JCI insight · 2020Article
- Significance of serum fibroblast growth factor-23 and miR-208b in pathogenesis of atrial fibrillation and their relationship with prognosis.World journal of clinical cases · 2020Article
- Chronic dantrolene treatment attenuates cardiac dysfunction and reduces atrial fibrillation inducibility in a rat myocardial infarction heart failure model.Heart rhythm O2 · 2020Article
- Altered calcium handling produces reentry-promoting action potential alternans in atrial fibrillation-remodeled hearts.JCI insight · 2020Article
- Mitochondrial and Sarcoplasmic Reticulum Interconnection in Cardiac Arrhythmia.Frontiers in cell and developmental biology · 2020Review
- Changes in Local Atrial Electrograms and Surface ECG Induced by Acute Atrial Myocardial Infarction.Frontiers in physiology · 2020Article
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Authors and funding
12 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundThe mechanisms underlying spontaneous atrial fibrillation (AF) associated with atrial ischemia/infarction are incompletely elucidated. Here, we investigate the mechanisms underlying spontaneous AF in an ovine model of left atrial myocardial infarction (LAMI). METHODS AND
resultsLAMI was created by ligating the atrial branch of the left anterior descending coronary artery. ECG loop recorders were implanted to monitor AF episodes. In 7 sheep, dantrolene-a ryanodine receptor blocker-was administered in vivo during the 8-day observation period (LAMI-D, 2.5 mg/kg, IV, BID). LAMI animals experienced numerous spontaneous AF episodes during the 8-day monitoring period that were suppressed by dantrolene (LAMI, 26.1±5.1; sham, 4.3±1.1; LAMI-D, 2.8±0.8; mean±SEM episodes per sheep,
conclusionsAtrial ischemia causes spontaneous AF episodes in sheep, caused by SFDs that initiate reentry. Nitroso-redox imbalance in the ischemic zone is associated with intense reactive oxygen species production and altered RyR2 responses to CaM. Dantrolene administration normalizes the CaM response, prevents LAMI-related SFDs, and AF initiation. These findings provide novel insights into the mechanisms underlying ischemia-related atrial arrhythmias.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.