Results 91 to 100 of about 1,014,709 (316)

Cardiac Organoid Model Inspired Micro‐Robot Smart Patch to Treat Myocardial Infarction

Advanced Materials, EarlyView.
The heart organoid model exhibits the acidic microenvironment characteristic of myocardial infarction, which emerges as a pivotal force propelling the movement of micro‐robots. These micro‐robots, administered through microneedles, can penetrate deep into the tissue, effectively delivering therapeutic payloads to facilitate heart repair.
Fangfang Wang, Zilu Xu, Feiyang Zheng, Dongcheng Yang, Kaige Xu, Ming Ke, Xiao Zhou, Xiaohan Zhang, Ju Tan, Yong Liu, Yansha Hao, Malcolm Xing, Chuhong Zhu   +12 more
wiley   +1 more source

PECULIAR FEATURES IN STRUCTURAL AND FUNCTIONAL HEART VALUES IN PERSONS WITH VARIOUS LEVELS OF BLOOD PRESSURE

Российский кардиологический журнал, 2002
113 healthy subjects with normal blood pressure and 26 patients with essential hypertension (BP 140-159/90-99 mm Hg) were inspected by echocardiography. All subjects were divided into 5 groups according to the blood pressure (BP) level.
A. V. Tuyev, Y. B. Hovayeva
doaj  

Using Anatomical Markers for Left Ventricular Segmentation of Long Axis Ultrasound Images [PDF]

arXiv, 2015
Left ventricular segmentation is essential for measuring left ventricular function indices. Segmentation of one or several images requires an initial guess of the contour. It is hypothesized here that creating an initial guess by first detecting anatomical markers, would lead to correct detection of the endocardium.
arxiv  

Progressive induction of left ventricular pressure overload in a large animal model elicits myocardial remodeling and a unique matrix signature [PDF]

, 2012
ObjectivePatients with severe left ventricular pressure overload secondary to aortic stenosis can present with signs and symptoms of heart failure despite normal left ventricular ejection fraction.
Dixon, Jennifer A., Eckhouse, Shaina R., Ikonomidis, John S., Mukherjee, Rupak, Oelsen, J. Marshall, Rivers, William T., Spinale, Francis G., Stroud, Robert E., Yarbrough, William M., Zile, Michael R.   +9 more
core   +1 more source

Protein‐Like Polymers Targeting Keap1/Nrf2 as Therapeutics for Myocardial Infarction

Advanced Materials, EarlyView.
We describe a Keap1 targeting protein‐like polymer (PLP) which activates Nrf2, an important cytoprotective transcription factor for relieving myocardial infarction‐induced oxidative stress. This PLP increases cell survival in vitro in multiple relevant cardiac cell types and elicits pro‐reparative responses, improving cardiac function in a preclinical ...
Joshua M. Mesfin, Kendal P. Carrow, Alexander Chen, Madeline P. Hopps, JoJo J. Holm, Quincy P. Lyons, Michael B. Nguyen, Jervaughn D. Hunter, Assa Magassa, Elyse G. Wong, Kate Reimold, Sriya N. Paleti, Emily Gardner, Matthew P. Thompson, Colin G. Luo, Xiaoyu Zhang, Karen L. Christman, Nathan C. Gianneschi   +17 more
wiley   +1 more source

Real-time Assessment of Right and Left Ventricular Volumes and Function in Children Using High Spatiotemporal Resolution Spiral bSSFP with Compressed Sensing [PDF]

arXiv, 2018
Background: Real-time (RT) assessment of ventricular volumes and function enables data acquisition during free-breathing. However, in children the requirement for high spatiotemporal resolution requires accelerated imaging techniques. In this study, we implemented a novel RT bSSFP spiral sequence reconstructed using Compressed Sensing (CS) and ...
arxiv  

Left ventricular hypertrophy induced by weight excess in children and adolescents [PDF]

, 2019
Background: Obesity is associated with left ventricular hypertrophy, an independent risk factor of  cardiovascular morbidity. The aim of the present study was to evaluate obesity-induced left ventricular hypertrophy in overweight/obese children and ...
Galli-Tsinopoulou, Assimina, Gogou, Maria, Kavga, Maria, Kleisarchaki, Aggeliki, Papadopoulou- Legbelou, Kyriaki   +4 more
core   +1 more source

Arterial switch for pulmonary venous obstruction complicating mustard procedure [PDF]

, 1995
Two patients underwent an arterial switch procedure for the relief of severe pulmonary venous obstruction complicating a Mustard procedure. Without preparatory pulmonary banding, both patients had adequate left ventricular function due to secondary ...
Bogers, A.J.J.C. (Ad), Bos, E. (Egbert), Jong, P.L. (Peter) de, Witsenburg, M. (Maarten)   +3 more
core   +1 more source

Inorganic Dielectric Materials Coupling Micro‐/Nanoarchitectures for State‐of‐the‐Art Biomechanical‐to‐Electrical Energy Conversion Devices

Advanced Materials, EarlyView.
Biomechanical‐to‐electrical energy conversion devices are uniquely suited for self‐driven physiological information monitoring and powering human–computer interaction systems. These devices based on micro‐/nanoarchitectured inorganic dielectric materials (MNIDMs) have shown ultrahigh electromechanical performance and thus great potential for practical ...
Jia‐Han Zhang, Zhengtong Li, Zeng Liu, Mingxuan Li, Jiaxin Guo, Jinhua Du, Changkun Cai, Shaohui Zhang, Ningning Sun, Yong Li, Xingtao Xu, Xihong Hao, Yusuke Yamauchi   +12 more
wiley   +1 more source

Left ventricular function in acute inflammatory peri-myocardial diseases – new insights and long-term follow-up

Cardiovascular Ultrasound, 2012
Background Until recently acute inflammatory peri-myocardial syndromes have been associated with global rather regional left ventricular (LV) dysfunction. Recent advances in cardiac imaging with echocardiographic techniques and magnetic resonance imaging
Leitman Marina, Tyomkin Vladimir, Peleg Eli, Copel Laurian, Vered Zvi   +4 more
doaj   +1 more source