Results 81 to 90 of about 1,093,239 (312)

Index of Myocardial Performance risk assessment by Ultrasound Waves of patients with high blood pressure

Diyala Journal of Medicine, 2018
Background: It is well known that hypertension results in cardiac overload. This overload is more profound on the left ventricle were systolic high pressure is present resulting in stiff LV.
Nada Abd alkarem, Mohamed Ubaid Hussein, Arshad Fouad Redha   +2 more
doaj   +2 more sources

The Effect of Ivabradine on the Human Atrial Myocardial Contractility in an In Vitro Study

Cardiology Research and Practice, 2019
Purpose. Ivabradine has emerged as a new antiarrhythmic agent that could compete with the traditional ones, such as beta-blockers. This experimental study aims to ascertain whether ivabradine directly interferes with the myocardial contractility in an in
Ryan Chaban, Katja Buschmann, Anna Krausgrill, Andres Beiras-Fernandez, Christian-Friedrich Vahl   +4 more
doaj   +1 more source

PEDOT:PSS—A Key Material for Bioelectronics

Advanced Science, EarlyView.
PEDOT:PSS ‐ Poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate ‐ is typically processed from water dispersions to form multifunctional and multidimensional constructs with tunable electronic and ionic conductivity. Throught processing engineering, PEDOT:PSS is intergrated in bioelectronic devices that operate efficiently in physiological conditions
Alan Eduardo Ávila Ramírez, David Pieter van der Laan, Mustafeez Bashir Shah, Liwen Wang, Erica Zeglio, Achilleas Savva   +5 more
wiley   +1 more source

Myocardial Contractions and the Ventricular Pressure--Volume\n Relationship [PDF]

, 2010
Paola Nardinocchi, Luciano Teresi, Valerio Varano   +2 more
openalex   +1 more source

Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy

Advanced Science, EarlyView.
Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro, Yoojin Chang, Jeeyoon Kim, Seungjae Lee, Sangyun Na, Cheolhong Park, Hyunhyub Ko   +6 more
wiley   +1 more source

Ischemic preconditioning affects phosphosites and accentuates myocardial stunning while reducing infarction size in rats

Frontiers in Cardiovascular Medicine
Background and aimsIschemic preconditioning (IPC), i.e., brief periods of ischemia, protect the heart from subsequent prolonged ischemic injury, and reduces infarction size. Myocardial stunning refers to transient loss of contractility in the heart after
Ahmed Elmahdy, Ahmed Elmahdy, Aaron Shekka Espinosa, Aaron Shekka Espinosa, Yalda Kakaei, Yalda Kakaei, Tetiana Pylova, Tetiana Pylova, Abhishek Jha, Abhishek Jha, Ermir Zulfaj, Maryna Krasnikova, Maryna Krasnikova, Amin Al-Awar, Amin Al-Awar, Zahra Sheybani, Zahra Sheybani, Valentyna Sevastianova, Valentyna Sevastianova, Evelin Berger, Amirali Nejat, Linnea Molander, Linnea Molander, Erik Axel Andersson, Erik Axel Andersson, Elmir Omerovic, Elmir Omerovic, Shafaat Hussain, Shafaat Hussain, Björn Redfors, Björn Redfors, Björn Redfors   +31 more
doaj   +1 more source

Estradiol Treatment Initiated Early After Ovariectomy Regulates Myocardial Gene Expression and Inhibits Diastolic Dysfunction in Female Cynomolgus Monkeys: Potential Roles for Calcium Homeostasis and Extracellular Matrix Remodeling

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
Background Left ventricular (LV) diastolic dysfunction often precedes heart failure with preserved ejection fraction, the dominant form of heart failure in postmenopausal women.
Kristofer T. Michalson, Leanne Groban, Timothy D. Howard, Carol A. Shively, Areepan Sophonsritsuk, Susan E. Appt, J. Mark Cline, Thomas B. Clarkson, J. Jeffrey Carr, Dalane W. Kitzman, Thomas C. Register   +10 more
doaj   +1 more source

Myocardial sarcomere dynamics during isometric contraction.

The Journal of Physiology, 1975
1. Sarcomere lengths were measured during rest and throughout the time course of isometric contractions in thin, isolated rat papillary muscles using light diffraction techniques. 2. Shortening of the sarcomere length occurred upon contraction at all muscle lengths, averaging 7% at optimal length and more at shorter lengths.
J W, Krueger, G H, Pollack
openaire   +3 more sources

168-02: Myocardial contraction duration of the left ventricle segments as risk markers for early detection cardiac events in patients with LQTS [PDF]

, 2016
Mohammad Hossein Nikoo, Alireza Moaref, Arash Yazdanshenas, Sara Ramezanpour, Pouya Farhadi   +4 more
openalex   +1 more source

Reprogramming the Myocardial Infarction Conductive Microenvironment with Superconductive Ionic Patch for Cardiac Function Repair

Advanced Science, EarlyView.
A super‐conductive ionic patch reprograms the post‐infarction microenvironment by enabling stable ionic migration and electrical signal transmission within damaged myocardium. The patch rapidly adheres to cardiac tissue, enhances conduction velocity, suppresses excitation‐contraction decoupling, and promotes structural and functional cardiac repair in ...
Changyong Wang, Zhuang Zhang, Qi Yin, Changgeng Xu, Linlin Liang, Siwei Li, Yuwei Zhao, Chunlan Wang, Jin Zhou   +8 more
wiley   +1 more source