Results 51 to 60 of about 3,073 (215)

Choroidal vessel diameter in central serous chorioretinopathy [PDF]

Acta Ophthalmologica, 2013
Abstract.Purpose:  To measure the hyporeflective lumen in the choroid of patients with central serous choroidopathy (CSC) and to compare the diameter with that of a control group.Methods:  The prospective comparative observational clinical study included patients with unilateral CSC and a control group of normal subjects, matched in age, gender and ...
Lihong, Yang, Jost B, Jonas, Wenbin, Wei
openaire   +2 more sources

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

Advanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett, Yann S. Vanrobaeys, Tessy Teboh, Zakiya Smith, Anderson Scott, Cynthia Hajal, Paula T. Hammond, Joelle P. Straehla   +7 more
wiley   +1 more source

Vascular Effects of Botulinum Toxin in Human Skin

Plastic and Reconstructive Surgery, Global Open
Summary:. Botulinum toxin-A (BTX-A) is widely used for aesthetic purposes and is recognized for its vasomotor actions. However, new medical applications have emerged.
Natalia K. Moreno Rozo, MD, Oswaldo J. Gómez Díaz, MD, Paloma Beltran Pachon, MD, Daniel Restrepo, MD, Santiago Gómez, MSc   +4 more
doaj   +1 more source

Tomographic Printing in a Chip: A Versatile Platform for Biomimetic 3D Organ‐on‐Chip

Advanced Healthcare Materials, EarlyView.
A novel light‐based bioprinting approach, TVAM‐in‐a‐chip, enables rapid, contactless fabrication of biomimetic 3D organ‐on‐chip devices directly within preassembled microfluidic platforms. This strategy supports diverse materials, including cell‐laden resins, and eliminates post‐assembly steps.
Riccardo Rizzo, Viola Sgarminato, Felix Wechsler, Christophe Moser   +3 more
wiley   +1 more source

Photoacoustic identification of blood vessel deformation under pressure

AIP Advances, 2019
In this work we demonstrate a photoacoustic system which can identify the deformation of blood vessels under external pressure. Using photoacoustic imaging method, the vessel internal diameter can be derived from the peak-to-peak time interval of the ...
Xiaoman Zhang, Cuncheng Weng, Shulian Wu, Jianyong Cai, Huaqin Wu, Zhifang Li, Lili Zhu, Hui Li   +7 more
doaj   +1 more source

Experimental Characterization and Correlation of Mayer Waves in Retinal Vessel Diameter and Arterial Blood Pressure

Frontiers in Physiology, 2018
Retinal vessels show various biological temporal variations that can impact diagnosis using a static vessel analysis. In this study, Mayer waves in the retinal vessel diameter and arterial blood pressure (BP) signals were characterized, and the temporal ...
Steffen Rieger, Sascha Klee, Daniel Baumgarten, Daniel Baumgarten   +3 more
doaj   +1 more source

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment

Advanced Healthcare Materials, EarlyView.
Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale, Nguyen Van Duc Long, Philip M. Williams, Jens Hauslage, Volker Hessel   +4 more
wiley   +1 more source

Mechanically Compliant, Precision‐Porous Brain Implants Reduce the Foreign Body Reaction and Guide Regeneration

Advanced Healthcare Materials, EarlyView.
This study explores how the brain responds to implants of different properties. Hydrogels with various mechanical properties and pore sizes were implanted in adult rat brains. It is observed that hydrogels with mechanical property closely matched to the brain and 40 µm pore size elicit a pro‐healing response from the brain by modulating the immune ...
Ian Dryg, Le Zhen, Rebecca Darrow, Savannah Lawton, Lars Crawford, Robert Robinson, Steve Perlmutter, James D. Bryers, Buddy D. Ratner   +8 more
wiley   +1 more source

Vascularization of Human iPSC‐Derived Kidney Organoids Using Perfusion Culture, Pre‐Vascularized Collagen Scaffolds, and Decellularized Extracellular Matrix

Advanced Healthcare Materials, EarlyView.
An integrated perfusion‐based culture platform combining pre‐vascularized collagen scaffolds, stromal vascular fraction cells, and kidney decellularized extracellular matrix promotes vascularization of human iPSC‐derived kidney organoids. The platform provides evidence of interactions between vascular networks and glomerular‐like structures and enables
Helen Kearney, Andrea Mazzoleni, Ivan Martin, Lorenzo Moroni, Manuele Giuseppe Muraro, Carlos Mota   +5 more
wiley   +1 more source

Wood anatomy of field grown eucalypt genotypes exhibiting differential dieback and water deficit tolerance

Current Plant Biology, 2020
The wood anatomy of three commercial genotypes of eucalypt, harvested at the Suzano Pulp and Paper plantation areas, was analyzed in the search for features related to their differential tolerance to dieback and drought in field conditions.
Itaina Gonçalves Andrade Bueno, Edgard Augusto de Toledo Picoli, Rosy Mary dos Santos Isaias, Karina Lucas Barbosa Lopes-Mattos, Cosme Damião Cruz, Kacilda Naomi Kuki, Edival Angelo Valverde Zauza   +6 more
doaj   +1 more source