Results 51 to 60 of about 41,808 (246)

Calcium- and Voltage-Dependent Dual Gating ANO1 is an Intrinsic Determinant of Repolarization in Rod Bipolar Cells of the Mouse Retina

Cells, 2020
TMEM16A/anoctamin1 (ANO1), a calcium (Ca2+)-activated chloride (Cl−) channel, has many functions in various excitable cells and modulates excitability in both Ca2+- and voltage-gating modes.
Sun-Sook Paik, Yong Soo Park, In-Beom Kim   +2 more
doaj   +1 more source

Is myocardial repolarization duration associated with repolarization heterogeneity? [PDF]

Annals of Noninvasive Electrocardiology, 2017
BackgroundDispersion of repolarization is theorized as one mechanism by which myocardial repolarization prolongation causes lethal torsades de pointes, (TdP). Our primary purpose was to determine whether prolongation of myocardial repolarization as measured by the heart rate‐corrected J‐to‐T peak interval (JTpkc), is associated with repolarization ...
Keith A. Marill, Pat Dorsey, Anthony Holmes, Ketaki Muthal, Emily S. Miller, Joel Xue   +5 more
openaire   +2 more sources

Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy

Advanced Science, EarlyView.
Lactate, once deemed a metabolic waste, emerges as a central regulator of cancer progression. This review elucidates how lactate and its epigenetic derivative, protein lactylation, orchestrate tumor metabolism, immune suppression, and therapeutic resistance.
Jiajing Gong, Yuhang Xie, Zhijie Weng, Yongzhi Wu, Longjiang Li, Bo Li   +5 more
wiley   +1 more source

Size‐Modulated Mesoderm‐Endoderm Divergence and Myocardial Cavitation in Micropatterned Cardioids

Advanced Science, EarlyView.
Micropatterned cardioids, CRISPR‐engineered reporter hiPSCs, deep‐tissue imaging, and single‐cell RNA sequencing are integrated to model mesoderm‐endoderm co‐development. Heart‐foregut crosstalk promotes single large cavitation inside cardioids, resembling early heart chamber formation. ABSTRACT The human heart, originating from the splanchnic mesoderm,
Plansky Hoang, David W. McKellar, Andrew Kowalczewski, Nhu Y. Mai, Meng Chai, Xiaojun L. Lian, Yi Zheng, Jeffrey Amack, Nathan Tucker, Iwijn De Vlaminck, Huaxiao Yang, Benjamin D. Cosgrove, Zhen Ma   +12 more
wiley   +1 more source

Connexin43 Deficiency Leads to Ventricular Arrhythmias by Reprogramming Proline Metabolism

Advanced Science, EarlyView.
The study demonstrated that connexin43 (Cx43) knockout caused arrhythmic phenotype and decreased proline content in vitro and in vivo. Mechanistically, Cx43 interacts with the amino acid transporter SNAT2 (sodium‐dependent neutral amino acid transporter), and its deficiency disrupts proline transport and metabolism.
Hangying Ying, Hangping Fan, Yunhe Wang, Ruhong Jiang, Dongsheng Cai, Hui Cheng, Hao Wang, Chenyang Jiang, Ping Liang   +8 more
wiley   +1 more source

Electrocardiographic Strain Pattern Is Associated With Left Ventricular Concentric Remodeling, Scar, and Mortality Over 10 Years: The Multi‐Ethnic Study of Atherosclerosis

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
BackgroundBoth ECG strain pattern and QRS measured left ventricular (LV) hypertrophy criteria are associated with LV hypertrophy and have been used for risk stratification.
Yuko Y. Inoue, Elsayed Z. Soliman, Kihei Yoneyama, Bharath Ambale‐Venkatesh, Colin O. Wu, Rodney Sparapani, David A. Bluemke, João A.C. Lima, Hiroshi Ashikaga   +8 more
doaj   +1 more source

3D Bioprinted Fat‐Myocardium Model Unravels the Role of Adipocyte Hypertrophy in Atrial Dysfunction

Advanced Science, EarlyView.
A human‐derived 3D bioprinted fat–myocardium model is developed to investigate how adipocyte hypertrophy drives atrial dysfunction in obesity. Palmitate‐induced adipocyte hypertrophy promotes adipose dysfunction that impairs atrial cardiomyocyte metabolism and electrophysiology through both paracrine and direct interactions. This platform recapitulates
Lara Ece Celebi, Pinar Zorlutuna
wiley   +1 more source

Reduction in Kv Current Enhances the Temporal Dispersion of the Action Potential in Diabetic Myocytes: Insights From a Novel Repolarization Algorithm

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundDiabetes is associated with prolongation of the QT interval of the electrocardiogram and enhanced dispersion of ventricular repolarization, factors that, together with atherosclerosis and myocardial ischemia, may promote the occurrence of ...
Marianna Meo, Olivier Meste, Sergio Signore, Andrea Sorrentino, Antonio Cannata, Yu Zhou, Alex Matsuda, Marco Luciani, Ramaswamy Kannappan, Polina Goichberg, Annarosa Leri, Piero Anversa, Marcello Rota   +12 more
doaj   +1 more source

Modulation of Transmural Repolarization [PDF]

Annals of the New York Academy of Sciences, 2005
Abstract: Ventricular myocardium in larger mammals has been shown to be comprised of three distinct cell types: epicardial, M, and endocardial. Epicardial and M cell action potentials differ from endocardial cells with respect to the morphology of phase 1.
openaire   +2 more sources

4‐Hydroxybenzyl Alcohol Mitigates Hyperlipidemia‐Associated Depression by Inhibiting Neuroinflammation via the NKIRAS2/NF‐κB Pathway

Advanced Science, EarlyView.
4‐HBA upregulates NKIRAS2 levels, inhibiting the activation of the NF‐κB pathway and subsequently reducing the levels of neuroinflammatory markers. This modulation helps restore normal mood and behavior in hyperlipidemic conditions, providing a potential therapeutic strategy for managing hyperlipidemia‐associated depression.
Ying Zhang, Meng Teng, Wenxuan He, Lanzhou Li, Yongfeng Zhang, Shimiao Wang, Chunyue Wang, Di Wang   +7 more
wiley   +1 more source