Pressure-induced Vascular Changes
Pressure-induced Vascular Changes - Related Videos
06:20
Imaging Leukocyte Adhesion to the Vascular Endothelium at High Intraluminal Pressure
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Cited by 22 •
2011
This is a method to visualise leukocyte adhesion to the endothelium in harvested pressurised vessels. The technique enables studying vascular adhesion under shear flow with differing intraluminal pressures up to 200 mmHg thus mimic-ing the pathophysiological conditions of high blood pressure.
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
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Cited by 5 •
2013
The laser heated diamond anvil cell combined with synchrotron micro-diffraction techniques allows researchers to explore the nature and properties of new phases of matter at extreme pressure and temperature (PT) conditions. Heterogeneous samples can be characterized in situ under high pressure by 2D mapping and combined powder, single-crystal and multigrain diffraction approaches.
07:05
Mouse Model of Alloimmune-induced Vascular Rejection and Transplant Arteriosclerosis
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Cited by 7 •
2015
We describe a protocol for aortic interposition grafting in mice. The goal of the protocol is to provide a model with which to study pathological processes and therapeutic strategies relevant to alloimmune reactions in arteries and the resultant arterial changes that contribute to organ transplant failure.
09:23
Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension
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Cited by 15 •
2017
This protocol describes a surgical procedure to create a model for flow-induced pulmonary arterial hypertension (PAH) in rats and the procedures to analyze the principle hemodynamic and histological end-points in this model.
07:55
Pressure Controlled Ventilation to Induce Acute Lung Injury in Mice
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Cited by 7 •
2011
A murine model for ventilator induced lung injury is an important tool to study an acute lung injury in vivo. Here, we report an easy applicable in situ model for acute lung injury using high-pressure mechanical ventilation to induce acute failure of the lung.
FAQs
Pressure first alters the mechanical forces acting on vessel walls. Increased or reduced pressure changes wall tension and mechanical stress, which can modify endothelial signaling and vascular smooth muscle tone. These cellular responses help adjust vessel behavior and blood flow, while also influencing permeability and the trajectory of longer-term wall remodeling.
Endothelial signaling and vascular smooth muscle tone connect mechanical pressure to functional vascular responses. Changes in these systems can affect how vessels regulate blood flow, maintain tissue perfusion, and control permeability. Their involvement also provides a biological basis for studying how altered mechanical conditions progress from short-term responses toward structural remodeling.
A temporary pressure change may produce functional adjustments in signaling, smooth muscle tone, permeability, and blood-flow regulation. Persistent pressure abnormalities can instead drive longer-term remodeling of the vessel wall and contribute to vascular dysfunction or disease. This distinction matters because bioengineering studies must consider both immediate behavior and cumulative structural effects.
Bioengineers investigate these responses using vessel models, biomaterials, and microfluidic systems that support study of vascular behavior under altered mechanical conditions. Such platforms can connect pressure-related forces with endothelial signaling, smooth muscle responses, permeability, and wall remodeling. They provide research settings for examining vascular biology beyond observations in living tissues.
A useful model should support examination of how altered pressure affects wall tension, mechanical stress, endothelial signaling, vascular smooth muscle tone, permeability, and longer-term wall remodeling. Linking these features helps researchers evaluate effects on blood-flow regulation and tissue perfusion, while keeping the mechanical environment relevant to vascular biology and bioengineering.
Pressure-induced vascular changes are relevant when researchers evaluate medical devices or design therapies intended to function within living tissues. Bioengineering approaches can help examine whether a device or treatment matches the vessel’s mechanical environment and supports appropriate vascular behavior. This context connects pressure-response research with cardiovascular research and efforts to address vascular dysfunction.