ArticleCirculation2017
Sheet-Like Remodeling of the Transverse Tubular System in Human Heart Failure Impairs Excitation-Contraction Coupling and Functional Recovery by Mechanical Unloading.
Article in Circulation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.
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Who cites it
50 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.
- Risk Prediction Models and Novel Prognostic Factors for Heart Failure with Preserved Ejection Fraction: A Systematic and Comprehensive Review.Current pharmaceutical design · 2023Pooled it
- A deep learning-enabled toolkit for the 3D segmentation of ventricular cardiomyocytes.The Journal of physiology · 2026Article
- Super-Resolution 3D Imaging Reveals Disarray of Dyadic Calcium Ion Channels in Failing Hearts Expressing Low Thyroid Hormone Function.International journal of molecular sciences · 2026Article
- From function to structure: how myofibrillogenesis influences the transverse-axial tubular system development and its peculiarities.Frontiers in physiology · 2025Review
- Nanoscale organization of cardiac calcium channels is dependent on thyroid hormone status.American journal of physiology. Heart and circulatory physiology · 2024Article
- Using a Failing Human Ventricular Cardiomyocyte Model to Re-Evaluate CaBiomolecules · 2024Article
- Restoring Atrial T-Tubules Augments Systolic Ca Upon Recovery From Heart Failure.Circulation research · 2024Article
- Quantitative 3D electron microscopy characterization of mitochondrial structure, mitophagy, and organelle interactions in murine atrial fibrillation.Journal of structural biology · 2024Article
- Learnings from the 2024 Utah Cardiac Recovery Symposium: A Roadmap for the Field of Myocardial Recovery.Methodist DeBakey cardiovascular journal · 2024Article
- Contractility measurements for cardiotoxicity screening with ventricular myocardial slices of pigs.Cardiovascular research · 2023Article
- Ryanodine Receptor Staining Identifies Viable Cardiomyocytes in Human and Rabbit Cardiac Tissue Slices.International journal of molecular sciences · 2023Article
- Successful conservative management of left ventricular assist device candidates.ESC heart failure · 2023Article
- Article
- Serial block face scanning electron microscopy reveals region-dependent remodelling of transverse tubules post-myocardial infarction.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Modeling Calcium Cycling in the Heart: Progress, Pitfalls, and Challenges.Biomolecules · 2022Review
- Novel Targets for a Combination of Mechanical Unloading with Pharmacotherapy in Advanced Heart Failure.International journal of molecular sciences · 2022Review
- LVAD as a Bridge to Remission from Advanced Heart Failure: Current Data and Opportunities for Improvement.Journal of clinical medicine · 2022Review
- Fibrosis and impaired CaBiophysical reviews · 2022Article
- The interplay between cardiac dyads and mitochondria regulated the calcium handling in cardiomyocytes.Frontiers in physiology · 2022Review
- Long-Term Cultivation of Human Atrial Myocardium.Frontiers in physiology · 2022Article
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Authors and funding
12 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundCardiac recovery in response to mechanical unloading by left ventricular assist devices (LVADs) has been demonstrated in subgroups of patients with chronic heart failure (HF). Hallmarks of HF are depletion and disorganization of the transverse tubular system (t-system) in cardiomyocytes. Here, we investigated remodeling of the t-system in human end-stage HF and its role in cardiac recovery.
methodsLeft ventricular biopsies were obtained from 5 donors and 26 patients with chronic HF undergoing implantation of LVADs. Three-dimensional confocal microscopy and computational image analysis were applied to assess t-system structure, density, and distance of ryanodine receptor clusters to the sarcolemma, including the t-system. Recovery of cardiac function in response to mechanical unloading was assessed by echocardiography during turndown of the LVAD.
resultsThe majority of HF myocytes showed remarkable t-system remodeling, particularly sheet-like invaginations of the sarcolemma. Circularity of t-system components was decreased in HF versus controls (0.37±0.01 versus 0.46±0.02;
conclusionsThe t-system in end-stage human HF presents a characteristic novel phenotype consisting of sheet-like invaginations of the sarcolemma. Our results suggest that the remodeled t-system impairs excitation-contraction coupling and functional recovery during chronic LVAD unloading. An intact t-system at the time of LVAD implantation may constitute a precondition and predictor for functional cardiac recovery after mechanical unloading.
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