Results 71 to 80 of about 105,162 (327)

Genome-wide association study of electrocardiographic and heart rate variability traits: the Framingham Heart Study [PDF]

, 2007
BACKGROUND: Heritable electrocardiographic (ECG) and heart rate variability (HRV) measures, reflecting pacemaking, conduction, repolarization and autonomic function in the heart have been associated with risks for cardiac arrhythmias.
Guo, Chao-Yu, Larson, Martin G., Levy, Daniel, Newton-Cheh, Christopher, O'Donnell, Christopher J., Wang, Thomas J.   +5 more
core   +4 more sources

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Andersen-Tawil Syndrome [PDF]

, 2006
Andersen-Tawil syndrome (ATS) is a rare condition consisting of ventricular arrhythmias, periodic paralysis, and dysmorphic features. In 2001, mutations in KCNJ2, which encodes the α subunit of the potassium channel Kir2.1, were identified in patients ...
Fish, Frank A, Kannankeril, Prince J, Smith, Andrew H   +2 more
core   +2 more sources

Potentiating Cerebral Perfusion Normalizes Glymphatic Dynamics in Systemic Inflammation

Advanced Science, EarlyView.
LPS‐induced systemic inflammation increases glymphatic influx but delays cervical lymphatic drainage, accompanied by AQP4 depolarization and impaired glymphatic clearance. Enhancing cerebral blood flow via the inotropic agent levosimendan effectively restored AQP4 polarization, improving glymphatic flux and amyloid‐β clearance.
Ruoyu Zhao, Bin Sun, Pengju Wei, Yingying Sun, Qianyan He, Kejia Zhang, Jun Lu, Shoujun Zhu, Yi Yang, Zhenni Guo   +9 more
wiley   +1 more source

Acetylcholine Reduces I_Kr and Prolongs Action Potentials in Human Ventricular Cardiomyocytes

Biomedicines, 2022
Vagal nerve stimulation (VNS) has a meaningful basis as a potentially effective treatment for heart failure with reduced ejection fraction. There is an ongoing VNS randomized study, and four studies are completed.
István Koncz, Arie O. Verkerk, Michele Nicastro, Ronald Wilders, Tamás Árpádffy-Lovas, Tibor Magyar, Noémi Tóth, Norbert Nagy, Micah Madrid, Zexu Lin, Igor R. Efimov   +10 more
doaj   +1 more source

Methods of Assessment and Clinical Relevance of QT Dynamics [PDF]

, 2005
The dependence on heart rate of the QT interval has been investigated for many years and several mathematical formulae have been proposed to describe the QT interval/heart rate (or QT interval/RR interval) relationship. While the most popular is Bazett’s
Agata, Musialik-Lydka, Anna, Sliwinska, Beata, Sredniawa, Piotr, Jarski, Zbigniew, Kalarus   +4 more
core  

Nanographene Oxide Attenuates Acute GVHD by Modulating Macrophage Polarization in a Xenogeneic Mouse Model

Advanced Science, EarlyView.
Nanographene oxide (NGO) attenuates graft‐versus‐host disease (GVHD) severity by inhibiting STAT1‐mediated M1 macrophage polarization and suppressing T‐cell activation. NGO‐primed macrophages (NGO‐Mac) further enhance regulatory T‐cell induction via IL‐10. Both NGO and NGO‐Mac therapies mitigate inflammation and immune pathology, offering cell‐free and
Aaron Yu, Hyun Sung Park, Dong‐Hoon Chae, Jae Han Park, Jiyoung Heo, Keonwoo Cho, Jiho Kim, Hyewon Lee, Sueyeon Jee, Chanwoo Kim, Soon Won Choi, Jaechul Ryu, Eun‐Hye Hur, Yunsuk Choi, Eun‐Ji Choi, Mi‐Kyung Oh, Hwa‐Yong Lee, Je‐Hwan Lee, Kyung‐Rok Yu   +18 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

Depolarization and repolarization dynamics after His‐bundle pacing: Comparison with right ventricular pacing and native ventricular conduction

Annals of Noninvasive Electrocardiology, 2022
Background The current study aimed to evaluate changes in electrical depolarization and repolarization parameters after His‐bundle pacing (HBP) compared with right ventricular pacing (RVP) and its association with ventricular arrhythmia (VA).
Satoshi Yanagisawa, Yasuya Inden, Ryo Watanabe, Naoki Tsurumi, Noriyuki Suzuki, Toshifumi Nakagomi, Masafumi Shimojo, Takashi Okajima, Shuro Riku, Koichi Furui, Kazumasa Suga, Rei Shibata, Toyoaki Murohara   +12 more
doaj   +1 more source

Interactions between Activation and Repolarization Restitution Properties in the Intact Human Heart: In-Vivo Whole-Heart Data and Mathematical Description

PLoS ONE, 2016
Background The restitution of the action potential duration (APDR) and conduction velocity (CVR) are mechanisms whereby cardiac excitation and repolarization adapt to changes in heart rate. They modulate the vulnerability to dangerous arrhythmia, but the
M. Orini, P. Taggart, N. Srinivasan, M. Hayward, P. Lambiase   +4 more
semanticscholar   +1 more source