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Hemodynamic and cellular response feedback in calcific aortic valve disease.
Sarah T Gould1, Suthan Srigunapalan, Craig A Simmons
1Department of Chemical and Biological Engineering, The Biofrontiers Institute, University of Colorado, Boulder, CO 80303, USA.
Circulation Research
|July 9, 2013
Summary
Hemodynamic forces initiate and drive calcific aortic valve disease progression. Pathological blood flow and pressure cause cellular changes, leading to valve dysfunction and stenosis.
Area of Science:
- Cardiovascular Biology
- Biomedical Engineering
- Pathology
Background:
- Calcific aortic valve disease (CAVD) involves progressive aortic valve dysfunction.
- Hemodynamics, including blood flow and pressure, are critical factors in normal valve function.
Purpose of the Study:
- To review the role of hemodynamic forces in CAVD initiation and progression.
- To focus on cellular responses to hemodynamics and their feedback mechanisms in valve dysfunction.
Main Methods:
- Review of existing literature on CAVD and hemodynamic principles.
- Analysis of cellular and tissue-level responses to mechanical forces.
Main Results:
- Abnormal hemodynamics initiate CAVD, affecting valve leaflets at macroscopic and microscopic scales.
- Hemodynamic forces, including shear stress and pressure, alter valvular endothelial and interstitial cell functions.
- Pathological cellular responses promote maladaptive tissue remodeling and exacerbate valve dysfunction.
Conclusions:
- Hemodynamic forces are central to the pathogenesis of CAVD.
- Understanding cellular responses to hemodynamics is key to addressing CAVD progression and dysfunction.
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