Results 121 to 130 of about 966,913 (304)

Joint segmentation and classification of retinal arteries/veins from fundus images

, 2019
Objective Automatic artery/vein (A/V) segmentation from fundus images is required to track blood vessel changes occurring with many pathologies including retinopathy and cardiovascular pathologies.
Cheriet, Farida, Girard, Fantin, Kavalec, Conrad   +2 more
core   +1 more source

An Engineered Living Material With Pro‐Angiogenic Activity Inducible by Near‐Infrared Light

Advanced Functional Materials, EarlyView.
NIR‐responsive engineered living materials (ELMs) for controlled angiogenesis: Near‐infrared (800 nm) light activates engineered probiotic bacteria within alginate‐based living materials to secrete a blood vessel‐regenerating protein. The released protein promotes pro‐angiogenic effects in endothelial networks and chick chorioallantoic membranes.
Anwesha Chatterjee, Stefanie S. M. Meier, Sara Trujillo, Andreas Möglich, Shrikrishnan Sankaran   +4 more
wiley   +1 more source

Preoperative clinical characteristics and risk assessment in Sun’s modified classification of Stanford type A acute aortic dissection

BMC Cardiovascular Disorders
Objectives This study aims to retrospectively analyze the clinical features of Stanford type A acute aortic dissection (TAAAD) based on Sun’s modified classification, and to investigate whether the Sun’s modified classification can be used to assess the ...
Jian Yao, Tao Bai, Chenyang Zhou, Bo Yang, Lizhong Sun   +4 more
doaj   +1 more source

Glutathione peroxidase 4 as a potential biomarker for atrial fibrosis and recurrence of atrial fibrillation

Heart Rhythm O2
Background: Atrial fibrosis mediates the development and maintenance of atrial fibrillation (AF). Glutathione peroxidase 4 (GPX4) is a ferroptosis biomarker.
Tong Liu, MD, Dong-tao Zhou, ME, Fang Liu, MD, De-yong Long, MD, Yang Yang, MD, Meng-meng Li, MD, Xin Zhao, MD, Chang-yi Li, MD, Wei Wang, MD, Chen-xi Jiang, MD, Ri-Bo Tang, MD   +10 more
doaj   +1 more source

Hybrid model for vascular tree structures [PDF]

, 1999
This paper proposes a new representation scheme of the cerebral blood vessels. This model provides information on the semantics of the vascular structure: the topological relationships between vessels and the labeling of vascular accidents ...
Navazo Álvaro, Isabel, Puig Puig, Anna, Tost Pardell, Daniela   +2 more
core   +1 more source

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

Advanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez, Jose I. Garcia‐Peiro, Jose L. Hueso, Eduardo Caleiras, Laura Notario, Felipe Hornos, Pilar Martin‐Duque, Antonio De la Vieja, Jesus Santamaria   +8 more
wiley   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Factors contributing to transient and persistent worsening renal function in elderly patients with acute decompensated heart failure

Journal of Cardiothoracic Surgery
Background The aim of this study is to analyze the distinct characteristics and risk factors contributing to the development of worsening renal function (WRF) in elderly patients with acute decompensated heart failure (ADHF), while also examining the ...
Yu-qing Sun, Lei-ming Luo, Zhi-yan Wang, Qiang Lv, Xin Du, Jian-zeng Dong   +5 more
doaj   +1 more source

Noninvasive coronary imaging: Technological breakthroughs and the integrated application of coronary magnetic resonance angiography

International Journal of Cardiology. Cardiovascular Risk and Prevention
With the growing demand for coronary artery visualization and the diagnosis of coronary artery disease, noninvasive coronary imaging modalities have gained significance.
Yiming Sang, Shuang Li, Hui Wang, Hongkai Zhang, Baiyan Zhuang, Lei Xu   +5 more
doaj   +1 more source

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng, Camila B. Tovani, Simona Bianco, Gianni Comandini, Aya Elghajiji, Mina Aleemardani, Roxana Moscalu, Jeremie Zappia, Bianca Fernandes, Olivia Annett, Chrissy L. Hammond, Jason Wong, Dave J. Adams, Fabrizio Scarpa, Michael R. Whitehouse, Annela M. Seddon, James P. K. Armstrong   +16 more
wiley   +1 more source