Results 101 to 110 of about 6,364,051 (298)

Myocardial dysfunction in patients with type 2 diabetes mellitus: role of endothelial progenitor cells and oxidative stress

Cardiovascular Diabetology, 2012
Background Endothelial progenitor cells (EPCs) are responsible for angiogenesis and maintenance of microvascular integrity, the number of EPCs is correlated with oxidative stress.
Zhao Chun, Wang Mei, Siu Chung, Hou Ying, Wang Tian, Tse Hung, Yiu Kai   +6 more
doaj   +1 more source

Relations of Strain Parameters to Wall Stress [PDF]

, 2017
Whether and how left ventricular (LV) strain and strain rate correlate with wall stress is not known. Furthermore, it is not determined whether strain or strain rate is less dependent on the afterload.
Yamada, Satoshi, Tsutsui, Hiroyuki, Abe, Ayumu, Murai, Daisuke, Ichikawa, Ayako, Okada, Kazunori, Mikami, Taisei, Hayashi, Taichi, Nishino, Hisao, Nakabachi, Masahiro, Ono, Kota, Kaga, Sanae, Iwano, Hiroyuki, Yokoyama, Shinobu   +13 more
core   +1 more source

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

Advanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan, Lixin Tian, Lianjie Peng, Jingyu Zhang, Lining Lin, Xiaoting Zhang, Yaxian Luo, Zhichao Liu, Xinhua Yao, Mouyuan Sun, Yong He, Mengfei Yu, Huiming Wang   +12 more
wiley   +1 more source

Assessment of cardiac dysfunction in COVID-19 patients using layer-specific strain echocardiography in short-axis and long-axis views

BMC Cardiovascular Disorders
Objectives Cardiac dysfunction is commonly observed in COVID-19 patients, but its impact on different myocardial layers—endocardial, mid-myocardial, and epicardial remains insufficiently understood.
Mengjiao Zhang, Jianxiong Chen, Lingheng Wu, Guiyang Xi, Xinyi Li, Lin Jin, Zhaojun Li   +6 more
doaj   +1 more source

Example of LV circumferential strain assessments at the basal level and corresponding strain curves.

, 2018
Example of LV circumferential strain assessments at the basal level with TomTec (Panel a) and QStrain (Panel b). Manually contoured epicardial and endocardial borders and respective strain curves (Panel c) are being displayed for both types of software.
Joachim Lotz (640425), Sören Jan Backhaus (4962253), Roman Johannes Gertz (4962250), Wieland Staab (640423), Gerd Hasenfuß (326792), Shelby Kutty (294553), Michael Steinmetz (640420), Johannes Tammo Kowallick (4962247), Andreas Schuster (329436), Torben Lange (4684882)   +9 more
core   +1 more source

Geometry‐Encoded Soft Strain Sensing via Liquid‐Metal Transmission Lines

Advanced Science, EarlyView.
This study presents a liquid‐metal transmission‐line strain sensor that achieves intrinsic decoupling by encoding axial elongation into propagation delay. The time‐domain readout remains stable under complex off‐axis. This enables reliable, repeatable, real‐time elongation measurement in dynamic, multiaxial loading environments for wearable electronics,
Zhang Liu, Fengdeng Jin, Wenxuan Shi, Meng She, Ziqi Meng, Miao Fang, Yixin Zhang, Qianwen Dong, Wandi Yang, Lei Shi, Xujia Zhao, Feng Zhou, Bin Yao   +12 more
wiley   +1 more source

Cardiovascular Magnetic Resonance Deformation Imaging By Feature Tracking For Assessment Of Left And Right Ventricular Structure And Function [PDF]

, 2014
The copyright of this thesis rests with the author and no quotation from it or information derived from it may be published without the prior written consent of the authorCardiac magnetic resonance (CMR) imaging is the gold standard imaging technique for
Augustine, Daniel
core   +1 more source

39. Speckle tracking echocardiography in patients with severe aortic stenosis and preserved ejection fraction undergoing aortic valve replacement

Journal of the Saudi Heart Association, 2015
To evaluate myocardial strain by 2-dimensional speckle-tracking Echocardiography (2D-STE) in patients with severe aortic stenosis (AS) and preserved left ventricular (LV) ejection fraction (EF), before and after aortic valve replacement (AVR ...
Mohamad Abdelshafy, Alaa A. Mohamed, Ahmad Alsaileek, Maryam Bukamseen, Edna G. Estacio, Nada Alshayeb, Tahlil Warsame, Ahmad S. Omran   +7 more
doaj   +1 more source

Persistent Zn2+ Influx‐Mediated Deacetylation of ANXA2 Regulates the “Zn2+‐Autophagic Flux” and Alleviates Intervertebral Disc Degeneration

Advanced Science, EarlyView.
Zinc transporter SLC39A14 sustains intracellular Zn2+ levels to activate SIRT3‑dependent ANXA2 deacetylation at K302. This modification weakens ANXA2‑mTOR binding and releases autophagic‑flux suppression in nucleus pulposus cells. Dysregulated Zn2+ homeostasis disrupts this axis to drive intervertebral disc degeneration.
Yuxin Jin, Yongcheng Chen, Yihao Xie, Dongyang Hu, Longhui Gong, Zhihua Chen, Linjie Chen, Minhao Gao, Qizhu Chen, Morgan Jones, Hui Wang, Xiuling You, Kenny Yat Hong Kwan, Shoutao Weng, Taidong Lyu, Xiang Chen, Yuxiao Zhu, Yusheng Wang, Bin Li, Xiangyang Wang, Xiaofeng Jia, Kailiang Zhou, Ouqiang Wu, Aimin Wu   +23 more
wiley   +1 more source

Cut-Off Point Value to Evaluate Abnormality of Systolic Deformation Parameters in Patients with Type 2 Diabetes

Clinical Diabetology
OBJECTIVE: The goal of this study is to determine the cut-off value that can be used to evaluate systolic deformation parameters and the prevalence of abnormalities in left ventricular function in patients with type 2 diabetes (T2D).
Nguyen Trang Nguyen, Anh Vu Nguyen, Van Chi Le, Hoang Thuy Linh Nguyen, Hoa Thi Phu, Anh Tien Hoang   +5 more
doaj   +1 more source