Vascular Dysfunction
Vascular Dysfunction - Related Videos
10:28
Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats
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2017
This manuscript describes in vitro video microscopy protocols for evaluating vascular function in rat cerebral resistance arteries. The manuscript also describes techniques for evaluating microvessel density with fluorescently labeled lectin and tissue perfusion using Laser Doppler Flowmetry.
12:03
Microfluidic Genipin Deposition Technique for Extended Culture of Micropatterned Vascular Muscular Thin Films
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Cited by 4 •
2015
We present a method for microfluidic deposition of patterned genipin and fibronectin on PDMS substrates, allowing extended viability of vascular smooth muscle cell-dense tissues. This tissue fabrication method is combined with previous vascular muscular thin film technology to measure vascular contractility over disease-relevant time courses.
08:18
Engineered Vascularized Muscle Flap
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Cited by 6 •
2016
To date, thick tissue defects are typically reconstructed by applying autologous tissue flaps or engineered tissues. In this protocol, we present a new method for engineering vascularized tissue flap bearing an autologous pedicle, to serve as a substitute to autologous flaps.
08:39
A Murine Model of Hemodialysis Access-Related Hand Dysfunction
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Cited by 3 •
2022
This protocol details the surgical steps of murine common iliac arteriovenous fistula creation. We developed this model to study hemodialysis access-related limb pathophysiology.
11:10
Visualization of Vascular and Parenchymal Regeneration after 70% Partial Hepatectomy in Normal Mice
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Cited by 3 •
2016
Tools used for visualizing vascular regeneration require methods for contrasting the vascular trees. This film demonstrated a delicate injection technique used to achieve optimal contrasting of the vascular trees and illustrate the potential benefits resulting from a detailed analysis of the resulting specimen using µCT and histological serial sections.
FAQs
Reduced nitric oxide signaling can weaken the vessel's normal vasodilatory response, meaning the vessel does not widen effectively when vascular signals call for increased blood flow. This impaired signaling is linked to endothelial dysfunction and can occur alongside oxidative stress, inflammation, increased stiffness, permeability, and remodeling. Measuring these linked changes helps connect altered endothelial communication with impaired tissue oxygenation.
Oxidative stress and inflammation can disturb endothelial responses to vascular signals. These disturbances may reduce nitric oxide signaling and impair vasodilation, while also promoting abnormal permeability, stiffness, or remodeling. In biology, examining these linked processes helps explain how vascular dysfunction develops and why it can accompany conditions such as hypertension, atherosclerosis, and diabetes-related complications.
Endothelial dysfunction describes a key cellular and signaling problem within the vessel lining, whereas vascular dysfunction encompasses the resulting changes in reactivity, integrity, flow regulation, and structure. The distinction matters because endothelial abnormalities can precede or contribute to broader vessel impairment. Researchers can therefore assess endothelial signaling alongside functional and structural measurements.
Vascular assays provide distinct readouts rather than a single measure of disease. They can assess vessel reactivity, endothelial signaling, and vascular structure, allowing investigators to identify whether impaired function is associated with altered responses, signaling pathways, or remodeling. These measurements support analysis of disease mechanisms, potential biomarkers, and treatment strategies.
Experimental models and vascular assays are useful when researchers need to connect a biological change with a disease process or treatment response. In vascular dysfunction research, the approach can examine vessel reactivity, endothelial signaling, and structure in relation to hypertension, atherosclerosis, diabetes-related complications, or cardiovascular disease. The resulting data can help evaluate mechanisms, biomarkers, and restoration of vascular function.
Studying this process links signaling changes, such as altered nitric oxide activity, oxidative stress, and inflammation, with outcomes including impaired tissue oxygenation and vessel remodeling. This connection helps explain major disease contexts, including hypertension, atherosclerosis, diabetes-related complications, and cardiovascular disease. It also supports biomarker research and efforts to identify treatments that restore vascular function.