Results 81 to 90 of about 335,049 (297)

Cell cycle arrest of cardiomyocytes in the context of cardiac regeneration

open access: yesFrontiers in Cardiovascular Medicine
The limited capacity of adult mammalian cardiomyocytes to undergo cell division and proliferation is one of the key factors contributing to heart failure.
Qingling Xu   +8 more
doaj   +1 more source

Dynamic changes in the ischemic mitral annulus: Implications for ring sizing

open access: yesAnnals of Cardiac Anaesthesia, 2016
Objectives: Contrary to the rest of the mitral annulus, inter-trigonal distance is known to be relatively less dynamic during the cardiac cycle. Therefore, intertrigonal distance is considered a suitable benchmark for annuloplasty ring sizing during ...
Khurram Owais   +5 more
doaj   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

open access: yesAdvanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae   +27 more
wiley   +1 more source

Deletion of HP1γ in cardiac myocytes affects H4K20me3 levels but does not impact cardiac growth

open access: yesEpigenetics & Chromatin, 2018
Background Heterochromatin, which is formed when tri-methyl lysine 9 of histone H3 (H3K9me3) is bound by heterochromatin 1 proteins (HP1s), plays an important role in differentiation and senescence by silencing cell cycle genes.
Kyohei Oyama   +6 more
doaj   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

Analysis of the basic functions of student’s miocard bioelectric activity during the educational process

open access: yesRUDN Journal of Ecology and Life Safety, 2014
The basic functions of myocard bioelectrical activity in 308 students of 17-20 years of age were studied by means of electrocardiography during the educational process. The research was carried out with medical diagnostic system “Valenta
V N Fedorov
doaj  

Cardiac cycle related modulation of electrocutaneous pain and tactile stimuli [PDF]

open access: yes, 2014
Research suggests hypertension is associated with reduced somatosensory perception. Further, natural fluctuations in blood pressure (BP) across the cardiac cycle have been shown to modulate nociceptive responding, pain and tactile sensitivity, suggesting
Mary Wilkinson (7237631)
core  

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Design and testing of an MRI-compatible cycle ergometer for non-invasive cardiac assessments during exercise

open access: yesBioMedical Engineering OnLine, 2012
Background Magnetic resonance imaging (MRI) is an important tool for cardiac research, and it is frequently used for resting cardiac assessments. However, research into non-pharmacological stress cardiac evaluation is limited.
Gusso Silmara   +6 more
doaj   +1 more source

Description and Implementation: Cardiac Pathophysiology

open access: yes
Implementation guide for cardiac pathophysiology educational resources that correlate bedside cardiac assessment findings with underlying disease mechanisms.

core   +1 more source

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