Results 101 to 110 of about 76,780 (342)

Antioxidant Carbon Dot of Selenomethionine Alleviates Oxidative Stress in Intervertebral Disc Degeneration

Advanced Science, EarlyView.
A selenomethionine‐derived carbon dot (Se‐Met‐CD) serves as a potent nano‐antioxidant, efficiently scavenging reactive oxygen species, protecting nucleus pulposus cells from oxidative damage, restoring extracellular matrix homeostasis, and significantly mitigating intervertebral disc degeneration in vivo, which demonstrates great promise as a nanozyme ...
Qingzheng Zhang, Zongtai Liu, Yirong Sun, Changfeng Fu, Jianxun Ding   +4 more
wiley   +1 more source

Observations of foetal heart veins draining directly into the left and right atria

Folia Morphologica, 2019
Evaluation of semiserial sections of 14 normal hearts from human foetuses of gestational age 25-33 weeks showed that all of these hearts contained thin veins draining directly into the atria (maximum, 10 veins per heart). Of the 75 veins in these 14 hearts, 55 emptied into the right atrium and 20 into the left atrium.
Chang Ho Song, Ji Hyun Kim, Ok Hee Chai, Hiroshi Abe, Zhe Wu Jin, Gen Murakami   +5 more
openaire   +4 more sources

Ultra‐Sensitive and Linear Flexible Pressure Sensors with Tri‐Scale Graded Microstructures for Advanced Health Monitoring and Robotic Perception

Advanced Science, EarlyView.
A flexible piezoresistive sensor with a 3D tri‐scale graded microstructure is proposed, overcoming the trade‐off between sensitivity and linearity. The device achieves ultra‐high sensitivity (138.6 kPa−1), a broad linear range (400 kPa, R2 = 0.99), and exceptional stability (24 000 repeated loading cycles), enabling precise detection of physiological ...
Rui Chen, Chi Fai Cheung, Qixian Zhang, Tao Luo, Rui Gao, Wei Zhou, Chunjin Wang   +6 more
wiley   +1 more source

Logistic Regression and Machine Learning Algorithms for the Risk Prediction of Perioperative Adverse Cardiovascular Events in Elderly Patients

AGING MEDICINE, EarlyView.
This manuscript focused on developing and validating prediction models for PACEs in elderly patients undergoing noncardiac surgery in China, utilizing routine laboratory examination findings. Logistic regression and machine learning algorithms were employed to construct these models.
Xiao Yan Li, Guang You Duan, Lin Li, Yi Yuan Gao, Li Wen Sun, Silin Zhu, Xiyezi Diao, Ning Wang, He Huang   +8 more
wiley   +1 more source

Heart Atria Granularity Effects of Changes in Water-Electrolyte Balance

Experimental Biology and Medicine, 1979
SummaryAtrial granularity was measured using a new morphometric method in rats subjected to procedures known to alter water-electrolyte balance. It was found that water deprivation and sodium deficiency lead to atrial hypergranulation, whereas, the combined administration of desoxycorticosterone (2.5 mg/100 g body wt/day) and 2% NaCl in the drinking ...
openaire   +3 more sources

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo, Lidong Yang, Tiantian Xu, Dong Sun   +3 more
wiley   +1 more source

Modelling Effect of Heart Failure on the Electrical Activity of Sheep Atria

Computing in Cardiology Conference (CinC), 2018
Heart failure (HF) is associated with cardiac arrhythmias, which impairs cardiac electromechanics that causes dysfunction of cardiac muscle contraction leading to increased risks of morbidity and mortality. Previous studies have revealed that HF causes alteration to the electrophysiological and structural properties of the atria.
Henggui Zhang, Nouf R Alshwaira
openaire   +2 more sources

Parametric Design of Continuum Robots Using Interlocking Ball Joints

Advanced Intelligent Systems, EarlyView.
Herein, a parametric design methodology is introduced for producing a wide variety of modular ball joint‐based continuum robots. It is demonstrate by designing a magnetically actuated continuum robot for cardiac ablations. The methodology is released as an open‐source computer‐assisted design extension that automatically designs continuum robots based ...
Alexandre Mesot, Quentin Boehler, Florian Heemeyer, Sean Lyttle, Buse Aktaş, Bradley J. Nelson   +5 more
wiley   +1 more source

Myocardial infarct-sparing effect of ischemic preconditioning abrogated in cirrhotic rat through involvement of mitochondrial permeability transition pore [PDF]

, 2012
Despite all studies undertaken mechanism of cirrhotic cardiomyopathy the role of cirrhosis on ischemia-reperfusion (I/R) injury and ischemic preconditioning (IPC) phenomenon hasn't been explored yet.
Dehpour, A.R., Jafrazedeh, F., Khori, V., Mohimani, H.R., Mohsen, N.   +4 more
core  

Tissue‐Resident Myeloid and Histiocytic Cells in Health and Disease: Novel Emerging Concepts

American Journal of Hematology, EarlyView.
ABSTRACT Although all myeloid cells are considered to derive from hematopoietic stem cells, the cells in each myeloid lineage are heterogeneous populations, and their distribution and functions vary, depending on underlying physiologic and pathologic processes, age, sex, and genetic and epigenetic signatures.
Peter Valent, Johann Wojta, Petri T. Kovanen, Olivier Hermine, Falko Fend, Karl Sotlar, Hildegard Greinix, Klaus Geissler, Karin Hartmann, Juliana Schwaab, Marco Herling, Laura Boccuni, Lukas Kazianka, Max Vincent John, Wolfgang R. Sperr, Carina Zierfuss, Alexandar Tzankov, Christian Sillaber, Milen Minkov, Gregor Hoermann, Matthew Collin, Hans‐Peter Horny, Torsten Haferlach, Maria Sibilia, Julien Haroche, Paul La Rosée, Alberto Orfao, Michel Arock   +27 more
wiley   +1 more source