Results 71 to 80 of about 52,076 (287)

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

Avaliação do bem-estar fetal pela dopplervelocimetria com mapeamento em cores Evaluation of fetal well-being through color doppler velocimetry

Revista Brasileira de Ginecologia e Obstetrícia, 1999
Objetivos: Avaliar a eficiência do exame dopplervelocimétrico no diagnóstico do bem-estar fetal. Metodologia: Foram analisadas 130 gestantes atendidas no Serviço de Ultra-Sonografia do Centro de Atenção Integral à Saúde da Mulher da Universidade Estadual
Cleide Mara Mazzotti de Oliveira Franzin, João Luiz Pinto e Silva   +1 more
doaj   +1 more source

A stochastic model for early placental development [PDF]

, 2013
In the human, placental structure is closely related to placental function and consequent pregnancy outcome. Studies have noted abnormal placental shape in small-for-gestational age infants which extends to increased lifetime risk of cardiovascular ...
Collins, S.L, Cotter, S. L., Heazell, A. E. P., Kimpton, L.S., Klika, V.   +4 more
core   +1 more source

The endothelial glycocalyx prefers albumin for evoking shear stress-induced, nitric oxide-mediated coronary dilatation [PDF]

, 2007
Background: Shear stress induces coronary dilatation via production of nitric oxide ( NO). This should involve the endothelial glycocalyx ( EG). A greater effect was expected of albumin versus hydroxyethyl starch ( HES) perfusion, because albumin seals ...
Bernhard F. Becker, Chang YS, Desjardins C, Dirk Bruegger, Gonzalez-Castillo C, Huxley VH, Joern O. Paul, Kuchan MJ, Leipert B, Markus Rehm, Matthias Jacob, Michael Loetsch, Mochizuki S, Mulivor AW, Peter Conzen, Platts SH, Pohl U, Pries AR, Risau W, Rubanyi GM, Siegel G, Ulrich Welsch, van Haaren P, Vink H, Vink H, Vink H   +25 more
core   +1 more source

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

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

Single Umbilical Artery

International Journal of Women’s Health Care, 2016
The Umbilical Artery Unica is found in 0.2 to 1.1% of all fetuses. Their presence of AOU in itself does not cause any harm to the fetus and newborn. Sometimes, however, this abnormality occurs associated with chromosomal abnormalities and other abnormalities Structural.
D’Agati Alfio, Leanza Vito, Leanza Gianluca, CARBONARO, Antonio, Pafumi C.   +4 more
  +5 more sources

Novel ultralow positioning of the umbilical artery catheter: A prospective pilot study

Journal of Ultrasonography
Thrombosis is a common complication of umbilical artery catheterization. The purpose of this study was to compare the novel ultralow umbilical artery catheter position (catheter tip at the junction of the umbilical and internal iliac arteries) versus the
Tomaszkiewicz Anna, Szymański Piotr, Kruczek Piotr   +2 more
doaj   +1 more source

Two‐Photon Polymerized Microvascular Environments for Multicellular Modeling of the Blood–Brain Tumor Barrier

Advanced Materials Technologies, EarlyView.
Modeling the blood–brain tumor barrier is challenging due to complex interactions between brain microvasculature and glioma cells. We present two‐photon polymerized 3D micro‐porous capillary‐like structures that support endothelial alignment, cytoskeletal organization, and pericyte‐endothelial‐glioma tri‐cultures.
Nastaran Barin, Sayba Z. Chowdhury, Maurice de Wit, Rania Head, Kiki Bals, Erwin Brosens, Marvin M. van Luijn, Hayri E. Balcioglu, Angelo Accardo, Pim J. French   +9 more
wiley   +1 more source

Effects of Resveratrol, Caffeic Acid Phenethyl Ester and Silibinin on Isolated Human Umbilical Artery

International Journal of Traditional and Complementary Medicine Research
Objective: The aim of this study was to compare the vasoactive effects of resveratrol, CAPE and silibinin on the basal tone and serotonin (5-HT) induced contractile responses of isolated human umbilical arteries.Material-Method: This study was approved ...
Ayşegül Arzum Karabaş, Ayşe Saide Şahin   +1 more
doaj   +1 more source