Results 61 to 70 of about 93,775 (303)

A comparative study on the mechanical properties of the umbilical vein and umbilical artery under uniaxial loading

Artery Research, 2014
Purpose: Coronary Artery Disease (CAD) is the main cause of mortalities worldwide. The Saphenous Vein (SV) and Umbilical Vein (UV) are the most common veins using for treatment as a Coronary Artery Bypass Graft (CABG).
Alireza Karimi, Mahdi Navidbakhsh, Mansour Alizadeh, Ahmad Shojaei   +3 more
doaj   +1 more source

Doppler sonography of the uterine and the cubital arteries in normal pregnancies, preeclampsia and intrauterine growth restriction: evidence for a systemic vessel involvement [PDF]

, 2006
Aims: The decrease in uterine resistance during normal pregnancy is known to be related to invading trophoblast cells which derive from placental tissue. Uterine and peripheral resistance is elevated in preeclampsia.
Friese, Klaus, Jundt, Katharina, Kainer, Franz, Oberhoffer, Renate, Schiessl, Barbara   +4 more
core   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Umbilical artery Doppler velocimetry in the prediction of intrapartum fetal compromise [PDF]

, 1992
CITATION: Howarth, G. R. et al. 1992. Umbilical artery Doppler velocimetry in the prediction of intrapartum fetal compromise. South African Medical Journal, 81:248-250.The original publication is available at http://www.samj.org.zaThe value of early ...
Howarth, G. R., Kirsten, G., Odendaal, H. J., Pattinson, R. C., Truter, H.   +4 more
core  

Deployable 3D‐Printed Vascular Stent with Surface‐Catalysed Endogenous Nitric Oxide Generation

Advanced Materials, EarlyView.
A deployable 3D‐printed vascular stent was fabricated with surface‐catalyzed endogenous nitric oxide generation, representing a promising new direction for stent development. The stent can be remotely controlled by magnetic force in its compressed state and fully deployed at the target site using an untethered heat source, potentially eliminating the ...
Kun Zhou, Zifei Han, Kang Lin, Di Wu, Siti Nur Asyura Adzlan, Qingqing Fan, Christina Cortez‐Jugo, Rona Chandrawati, Cyrille Boyer   +8 more
wiley   +1 more source

High-speed, high-frequency ultrasound, \u3ci\u3ein utero\u3c/i\u3e vector-flow imaging of mouse embryos [PDF]

, 2019
Real-time imaging of the embryonic murine cardiovascular system is challenging due to the small size of the mouse embryo and rapid heart rate. High-frequency, linear-array ultrasound systems designed for small-animal imaging provide high-frame-rate and ...
Aristizabal, Orlando, Ketterling, Jeffrey A., Phoon, Colin K. L., Silverman, Ronald H., Turnbull, Daniel H., Yiu, Billy Y. S., Yu, Alfred C. H.   +6 more
core   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

Advanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

Ductus Venosus Doppler S/D Value Adjusted Alfa Fetoprotein Levels to Decrease False Positive Rates

Gynecology Obstetrics & Reproductive Medicine, 2013
OBJECTIVE: Fetal liver is mostly perfused by umbilical vein via ductus venosus and AFP is synthesized and secreted from fetal liver. In this study we tried to determine the effect of ductus venosus and umbilical blood flow on serum AFP levels STUDY ...
Alptekin Tosun, Enis Özkaya, Vakkas Korkmaz, Yasemin Çekmez   +3 more
doaj  

Evaluation of the Relationship Between Placental Thickness and Obstetric Doppler Parameters During the Second Trimester

Gynecology Obstetrics & Reproductive Medicine, 2020
OBJECTIVE: To determine whether there is a relationship between placental thickness and the umbilical artery and uterine artery Doppler evaluation in the second trimester.
Emine Aydin, Ayca Nazli Bulut
doaj   +1 more source