Results 141 to 150 of about 187,919 (262)

Post-Implant Global Longitudinal Strain as a Predictor of Pacing-Induced Cardiomyopathy in Patients with Preserved Ejection Fraction Undergoing Pacemaker Placement

Reviews in Cardiovascular Medicine
Background: Right ventricular (RV) pacing exacerbates heart failure and increases cardiac mortality in patients with reduced ejection fraction (EF).
Sung Soo Kim, Hyung Wook Park, Hyung Ki Jeong   +2 more
doaj   +1 more source

The neurochemical basis of photic entrainment of the circadian pacemaker [PDF]

Circadian rhythmicity in mammals is controlled by the action of a light-entrainable hypothalamus, in association with two cell clusters known as the supra chiasmatic nuclei (SCN).
Buckley, Becky, Lutton, Lewis M., Rea, Michael A.   +2 more
core   +1 more source

Stroke Timing Through a Circadian Lens: A Brain‐Centric Perspective

Organ Medicine, EarlyView.
Bivek Singh
wiley   +1 more source

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

The Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger, Verena Charwat, Kevin E. Healy, Samuel Wall, Aslak Tveito   +4 more
wiley   +1 more source

Smart Dust for Chemical Mapping

Advanced Materials, Volume 37, Issue 19, May 12, 2025.
This review article explores the advancement of smart dust networks for high‐resolution spatial and temporal chemical mapping. Comprising miniature, wireless sensors, and communication devices, smart dust autonomously collects, processes, and transmits data via swarm‐based communication.
Indrajit Mondal, Hossam Haick
wiley   +1 more source

Estimation of Stroke's Motor Function Ability Using Multimodal Biomarkers and the Role of Contralesional Motor Area

Brain and Behavior, Volume 15, Issue 5, May 2025.
This study reports that the contralesional MA plays a key role in motor function estimation, serving as a potential biomarker for stroke‐related motor impairment. This approach can aid in developing personalized rehabilitation strategies, particularly during the chronic recovery phase.
Da‐Hye Kim, Gyu Hyun Kwon, Seong‐Whan Lee, Laehyun Kim   +3 more
wiley   +1 more source

Initial dynamics of the EKG during an electrical defibrillation of the heart [PDF]

In tests on 11 mature dogs, immobilized by means of an automatic blocking and synchronization system, artefact free EKG were obtained, beginning 0.04-0.06 sec after passage of a defibrillating current. Different versions of the start of fibrillation were
Bikov, I. I., Chebotarov, Y. P., Nikolaev, V. G.   +2 more
core   +1 more source

A Case of Treatment With a Combination of Covered Stents and Artificial Blood Vessel for Iliac Artery Rupture During Transcatheter Aortic Valve Replacement

Clinical Case Reports, Volume 13, Issue 5, May 2025.
ABSTRACT Vascular complications (VCs) associated with Transcatheter Aortic Valve Replacement (TAVR), particularly iliac artery rupture, pose significant challenges. We report a case of complete iliac artery disruption during TAVR. A combination of a covered stent and artificial blood vessel repair was employed to achieve revascularization of the iliac ...
Wensheng Zhu, Hanqing Deng, Weiqing Hu, Shixun Wang   +3 more
wiley   +1 more source

Advancing Myocardial T1 Mapping: A Comparative Study of the Frequency‐Independent MFA Sequence and Standard MOLLI

NMR in Biomedicine, Volume 38, Issue 5, May 2025.
The multiflip angle (MFA) sequence provides a frequency‐independent and motion‐robust alternative to the MOLLI sequence for myocardial T1 mapping. Although MOLLI demonstrated higher measurement precision, it showed heart rate dependency and sex‐related differences in T1 values. In contrast, MFA maintained stable T1 values across varying heart rates and
Vitali Koch, Mukaram Rana, Christina Seppi, Simon Martin, Thomas Vogl, David M. Leistner, Marco M. Ochs, Sebastian M. Haberkorn   +7 more
wiley   +1 more source