Results 51 to 60 of about 79,145 (303)

Changes in left atrial deformation in hypertrophic cardiomyopathy: Evaluation by vector velocity imaging. [PDF]

, 2012
OBJECTIVES: Hypertrophic cardiomyopathy (HCM) represents a generalized myopathic process affecting both ventricular and atrial myocardium. We assessed the global and regional left atrial (LA) function and its relation to left ventricular (LV) mechanics ...
Badran, HM, Faheem, N, Hassan, H, Nazmy, A, Saadan, H, Soltan, G, Yacoub, MH   +6 more
core   +2 more sources

Extracellular Vesicles Modulation by an Adiponectin Receptor Agonist Provides Cardioprotection for Myocardial Ischemic Injury

Advanced Healthcare Materials, EarlyView.
This study demonstrates that ALY688, a drug mimicking the heart‐protective hormone adiponectin, reduces myocardial ischemia injury. ALY688 increases the production of extracellular vesicles, which carry protective cargo including adiponectin itself.
Jialing Tang, Wing Yan Chung, Serena M. Pulente, Yubin Lei, Khang Nguyen, Eddie Tam, Nadya M. Morrow, Ilka Lorenzen‐Schmidt, Fengxia Xiao, Augusto Zani, Dylan Burger, Hye Kyoung Sung, Erin E. Mulvihill, Gary Sweeney   +13 more
wiley   +1 more source

A Nano‐Interception Strategy for Chronic Heart Failure: Prussian Blue Nanoparticles Disrupt Fibroblast‐Immune Communication via CCL2 Sequestration

Advanced Materials, EarlyView.
A nano‐interception strategy disrupts pathogenic fibroblast–macrophage crosstalk in chronic heart failure. Scalable Prussian blue nanoparticles selectively sequester CCL2 via ultrahigh‐affinity binding, preventing CCR2+ macrophage recruitment and breaking a key fibro‐inflammatory circuit. This approach demonstrates robust efficacy in murine and porcine
Bo Chen, Gao Wei, Guowei Zeng, Haoyu Li, Rongrong Wu, Hongyu Yan, Zijie Zhou, Kai Luo, Xiaoyang Zhang, Cong Li, Longming Huang, Lingyan Cheng, Xinjie Zhang, Jinghao Zheng, Bozhong Shi, Xiaojun Cai, Xiaomin He   +16 more
wiley   +1 more source

Impact of Modifiable Bleeding Risk Factors on Major Bleeding in Patients With Atrial Fibrillation Anticoagulated With Rivaroxaban. [PDF]

, 2020
Background Reducing major bleeding events is a challenge when managing anticoagulation in patients with atrial fibrillation. This study evaluated the impact of modifiable and nonmodifiable bleeding risk factors in patients with atrial fibrillation ...
Amarenco, P, Camm, AJ, Haas, S, Hess, S, Kirchhof, P, Lambelet, M, Turpie, AGG, van Eickels, M, XANTUS Investigators*   +8 more
core   +2 more sources

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Advanced ablation strategies for management of post-surgical atrial arrhythmias. [PDF]

, 2013
Post-surgical arrhythmias include a wide range of arrhythmias occurring late after cardiac surgery and represent a complex substrate for catheter ablation either because of extended scar and remodeling or because of limited access to the area of interest.
Babu-Narayan, SV, Ernst, S, Mantziari, L, Suman-Horduna, I   +3 more
core   +1 more source

Participation of G Proteins in Natriuretic Peptide Hormone Secretion from Heart Atria [PDF]

Endocrinology, 2004
The involvement of G proteins in the mechanism underlying the increased atrial natriuretic factor (ANF) secretion observed after atrial muscle stretch (stretch-secretion coupling) was assessed using a combined pharmacological, immunocytochemical, and tissue fractionation approach.
Michael, Bensimon, Astra I, Chang, Mercedes L Kuroski, de Bold, Amalia, Ponce, Daniel, Carreras, Adolfo J, De Bold   +5 more
openaire   +2 more sources

Direct Gravity‐Induced Modulation of Cardiac Conduction Pathways Evidenced Through Propagation Features in Electrophysiological Mapping

Advanced Materials Technologies, EarlyView.
A high‐density wearable body‐surface potential mapping array reveals how gravity reshapes cardiac conduction in real time. By resolving spatiotemporal delay patterns invisible to conventional ECG, the platform uncovers posture‐dependent electrophysiological adaptations across the thorax.
Ruben Ruiz‐Mateos Serrano, Matias L. Picchio, Daniele Mantione, David Mecerreyes, George G. Malliaras   +4 more
wiley   +1 more source

Morphometric assessment of canine heart without macroscopically visible changes caused by cardiac disease

Ciência Animal Brasileira, 2018
The purpose of this study was to collect data on the cardiac morphometry of thirty adult male and female dogs without macroscopic changes indicative of heart disease, regardless of animal's body weight and score.
Layla Lívia Queiroz, Léa Resende Moura, Veridiana Maria Brianezi Dignani Moura   +2 more
doaj   +1 more source

The cardiac work-loop technique:An in vitro model for identifying and profiling drug-induced changes in inotropy using rat papillary muscles [PDF]

, 2020
The cardiac work-loop technique closely mimics the intrinsic in vivo movement and characteristics of cardiac muscle function. In this study, six known inotropes were profiled using the work-loop technique to evaluate the potential of this method to ...
AJ Taberner, AM Aylin, AW Tank, CW Scott, D Burkhoff, D Mehra, DA Eisner, DM Bers, DR Varma, E Takimoto, FG Spinale, H Lüllman, J Layland, J Layland, J Layland, J Layland, J Layland, J Tallis, JI Schwartz, JJ Lynch, JL Holtzman, JR Blinks, JS Landzberg, K Noguchi, K Sagawa, KC Vinnakota, L Batista, L Brown, L Butler, L Guo, LJ Mellors, M Eichelbaum, M Gharanei, MA Rosic, ME Conolly, MF Peters, MS Parmacek, P Bergson, R Beigel, R Josephson, R Lewis, R Seifert, R Zhang, RA Nishimura, RC Heel, RD Olson, RK Josephson, RM Bell, RS James, T Akera, T Bombardini, T Delhaas, VJ Caiozzo, W Kerns, W Semafuko, WA Catterall, Y Kihara   +56 more
core   +1 more source