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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
File: /var/www/html/index.php
Line: 316
Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 249
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
File: /var/www/html/index.php
Line: 316
Function: require_once
Severity: Warning
Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 249
Backtrace:
File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
File: /var/www/html/index.php
Line: 316
Function: require_once
Severity: Warning
Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 249
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Filename: models/Detail_model.php
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Line: 71
Function: strpos
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Function: insertAPISummary
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Filename: helpers/my_audit_helper.php
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File: /var/www/html/application/helpers/my_audit_helper.php
Line: 8919
Function: str_replace
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Function: formatAIDetailSummary
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Line: 256
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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File: /var/www/html/index.php
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 260
Backtrace:
File: /var/www/html/application/controllers/Detail.php
Line: 260
Function: _error_handler
File: /var/www/html/index.php
Line: 316
Function: require_once
Severity: Warning
Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 260
Backtrace:
File: /var/www/html/application/controllers/Detail.php
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Function: require_once
Human -related gene () encodes the pore-forming subunit of the rapidly activating delayed rectifier potassium current () potassium channel, which is important for cardiac repolarization. Impairment of hERG function is the primary cause of acquired long QT syndrome, which predisposes individuals to cardiac arrhythmias and sudden death. Patients with hypoxia due to conditions such as cardiac ischemia or obstructive sleep apnea display increased incidence of cardiac arrhythmias and sudden death. We sought to understand the mechanisms that underlie hypoxia-associated cardiac arrhythmias. Using cell biology and electrophysiologic techniques, we found that hypoxic culture of hERG-expressing human embryonic kidney (HEK) cells and neonatal rat cardiomyocytes reduced hERG current/ and mature ERG channel expression with a concomitant increase in calpain expression. Calpain was actively released into the extracellular milieu and degraded cell-surface hERG. In contrast to hERG, the ether-a-go-go (EAG) channel was not reduced by hypoxic culture. By making chimeric channels between hERG and EAG, we identified that hypoxia-induced calpain degraded hERG by targeting its extracellular S5-pore linker. The scorpion toxin BeKm-1, which is known to selectively bind to the S5-pore linker of hERG, prevented hypoxia-induced hERG reduction. Our data provide novel information about hypoxia-mediated hERG dysfunction and may have biological and clinical implications in hypoxia-associated diseases.-Lamothe, S. M., Song, W., Guo, J., Li, W., Yang, T., Baranchuk, A., Graham, C. H., Zhang, S. Hypoxia reduces mature hERG channels through calpain up-regulation.
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http://dx.doi.org/10.1096/fj.201700255R | DOI Listing |
ARYA Atheroscler
January 2024
Department of Cardiology, Healthy Heart Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Background: Atrial fibrillation (AF) is a prevalent arrhythmia, and predicting its occurrence plays a crucial role in reducing its complications. This study aimed to investigate the relation between simple P wave parameters and paroxysmal AF (pAF).
Methods: In this case-control study, demographic and laboratory data were gathered by a checklist.
Europace
December 2024
Laboratory of Experimental Cardiology, Department of Cardiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands.
In 2024, we celebrate the 100th anniversary of Willem Einthoven receiving the Nobel Prize for his discovery of the mechanism of the electrocardiogram. Building on Einthoven's legacy, electrocardiography allows the monitoring of cardiac bioelectricity through solutions to the so-called forward and inverse problems. These solutions link local cardiac electrical signals with the morphology of the electrocardiogram, offering a reversible connection between the heart's electrical activity and its representation on the body surface.
View Article and Find Full Text PDFEuropace
December 2024
Department of Cardiology, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
Atrial fibrillation (AF) remains the most common cardiac arrhythmia worldwide and is associated with significant morbidity and mortality. The European Society of Cardiology (ESC)/European Association for Cardio-Thoracic Surgery (EACTS) have recently released the 2024 guidelines for the management of AF. This review highlights 10 novel aspects of the ESC/EACTS 2024 Guidelines.
View Article and Find Full Text PDFJ Cardiovasc Electrophysiol
December 2024
Division of Cardiology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
BMC Med Inform Decis Mak
December 2024
Department of Cardiovascular Medicine, Zheng Zhou Cardiovascular Hospital, The 7th People's Hospital of Zheng Zhou, No. 17, Jingnan Fifth Road, Huizhuang Development Zone, Zhengzhou, Henan, 450000, China.
Background: Heart failure (HF) and atrial fibrillation (AF) usually coexist and are associated with a poorer prognosis. This study aimed to develop a model to predict in-hospital mortality in patients with HF combined with AF.
Methods: Patients with HF and AF were obtained from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database from 2008 to 2019.
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