Endothelial Function Assessment
Endothelial Function Assessment - Related Videos
05:41
Non-invasive Assessment of Microvascular and Endothelial Function
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Cited by 12 •
2013
Capillaroscopy is a non-invasive, relatively inexpensive methodology for directly visualizing the microcirculation. The forearm blood flow technique provides accepted non-invasive measures of endothelial function.
07:46
Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
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Cited by 165 •
2010
A noninvasive procedure to assess endothelial function is demonstrated using the Endo-PAT 2000.
02:43
Assessing Mitochondrial Function in Cerebral Vascular Endothelial Cells
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2025
This video demonstrates the assessment of the mitochondrial functioning of cerebral vascular endothelial (CVE) cells using an extracellular flux assay. CVE cells are plated in an extracellular flux cell culture plate. Extracellular flux sensors are hydrated before loading and calibration into the bioanalyzer. The plate containing cells is then loaded for analysis.
06:35
Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
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Cited by 56 •
2016
The flow mediated dilation (FMD) test is the most commonly utilized, non-invasive, ultrasound assessment of endothelial function in humans. Although the FMD test has been related with the prediction of future cardiovascular disease and events, it is a physiological assessment with many inherent confounding factors that need to be considered.
06:15
Evaluation of Bioenergetic Function in Cerebral Vascular Endothelial Cells
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Cited by 11 •
2016
Endothelial cell mitochondria are critical to maintain blood-brain-barrier integrity. We introduce a protocol to measure bioenergetic function in cerebral vascular endothelial cells.
FAQs
A physiological or pharmacological stimulus can prompt endothelial cells to release nitric oxide and related signaling molecules. These signals influence vascular relaxation, so the resulting vasodilation provides an indirect view of endothelial responsiveness. Reduced dilation may indicate impaired signaling even when the vessel has not yet developed obvious structural disease, making this response valuable in biological and cardiovascular research.
Functional testing captures how blood vessels respond under a defined challenge, whereas structural evaluation may not reveal early regulatory problems. Endothelial function assessment can therefore detect altered vascular responsiveness before structural disease becomes apparent. This distinction helps researchers investigate early changes in vascular health and examine whether physiological regulation is deteriorating over time.
Interpretation depends on the degree of vasodilation observed after the selected physiological or pharmacological stimulus. A weaker vascular response suggests reduced endothelial responsiveness and may reflect altered nitric oxide or related signaling. Researchers can use these functional findings alongside biological and cardiovascular information to study vascular inflammation, metabolic disorders, disease progression, and cardiovascular risk.
A general workflow begins by selecting an assessment approach, applying a physiological or pharmacological stimulus, and measuring the resulting vascular dilation or responsiveness. Flow-mediated dilation and peripheral arterial tonometry are examples identified for this purpose. The measured response is then interpreted as an indicator of endothelial regulation, including possible impairment or changes during an intervention.
Both flow-mediated dilation and peripheral arterial tonometry can reveal impaired vascular responsiveness, so they are useful when researchers need functional information about endothelial regulation. The choice depends on the assessment approach suited to the biological or cardiovascular study. Their results can support investigations of vascular physiology, disease-related changes, and responses to therapeutic interventions.
Researchers apply these assessments to examine vascular physiology, inflammation, metabolic disorders, and cardiovascular risk. Repeated or comparative measurements can also help track disease progression and evaluate responses to therapeutic interventions. Because the methods focus on vascular responsiveness, they connect cellular signaling, blood-flow regulation, and clinically relevant changes in cardiovascular health without relying only on structural observations.