Results 101 to 110 of about 138,711 (293)

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

The Acute Responses of Different-sized Coronary Arteries to Testosterone [PDF]

, 2012
Coronary arteries supply blood to the myocardium. The blood flow within the coronary arteries is altered by various compounds produced within the body. Sex hormones such as testosterone are known to cause the relaxation of large coronary arteries.
Madanu, Sampath
core   +2 more sources

Catechol Derivative‐Based Bioadhesives: Molecular Design for Precision Medical Adhesion

Advanced Science, EarlyView.
This study utilizes tree‐inspired side‐chain engineering to graft five catechol derivatives onto PVA, systematically revealing how side‐chain length and substituents regulate adhesion and cohesion properties. Among them, the PVA‐CA patch demonstrates superior tissue adhesion, biocompatibility, and promotes regeneration, establishing a programmable ...
Xueyu Wang, Zixin Yang, Shan Wang, Weiwei Tan, Zhirui He, Qinyu Duan, Huanan Wang, Tao Chen, Shanshan Hu   +8 more
wiley   +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 contraction fraction predicts mortality in the oldest old. [PDF]

Int J Cardiol Heart Vasc, 2022
Leibowitz D, Bishara Y, Stessman-Lande I, Hammerman-Rosenberg A, Jacobs JM, Gilon D, Stessman J.   +6 more
europepmc   +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

Bench‐to‐Bedside Translation of Self‐Healing Colloidal Hydrogels as Next Generation Design of Flowable Hemostatic Matrix: From Preclinical Evaluation to Human Clinical Trials

Advanced Science, EarlyView.
ABSTRACT Self‐healing materials represent a paradigm shift in designing functional biomedical devices for drug delivery, tissue regeneration, and 3D bioprinting. However, their clinical translation remains limited by challenges such as insufficient mechanical strength, potential cytotoxicity from chemical modifications, and complex activation ...
Ganjun Feng, Kaiwen Chen, Qiwei Ying, Shuya Wang, Xin Li, Guanlin Li, Yantao Zhao, Binghua Ma, Huanan Wang, Dawei Li, Lijun Zhang, Jian Zhang, Yu Zhao, Changle Ren, Baodong Chen, Yueming Song   +15 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

Stroke volume and myocardial contraction fraction in transthyretin amyloidosis cardiomyopathy: A systematic review. [PDF]

Front Cardiovasc Med, 2023
Matteo S, Anna C, Federico S, Daniele M, Gioele F, Beatrice DP, Rita P, Elisabetta T, Giulia P, Claudio R, Gianluca C.   +10 more
europepmc   +1 more source

Beyond Extracellular Vesicle (EV) Hype: Practical Solutions and Remaining Hurdles in EV Research, Manufacturing, and Clinical Translation

Advanced Science, EarlyView.
ABSTRACT Extracellular vesicles (EVs) are nanoscale mediators of intercellular communication with diverse molecular cargoes that reflect their cell of origin. Advances in isolation, detection, and single‐particle analytics have revealed increasing molecular and functional heterogeneity, while exposing limitations in how EV identity and activity are ...
David J. Lundy, Zoe L. Chau, Sheng‐You Chen, Nanami Fujisawa, John J. Hill, Barnett M. Hsu, Joanne K. Liu, Karol W. Mai, James J. Lai   +8 more
wiley   +1 more source