Valve Leaflet Dissection
Valve Leaflet Dissection - Related Videos
11:12
Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Cited by 5 •
2013
There has been renewed interest in developing polymer valves. Here, the objectives are to demonstrate the feasibility of modifying a commercial pulse duplicator to accommodate tri-leaflet geometries and to define a protocol to present polymer valve hydrodynamic data in comparison to native and prosthetic valve data collected under near-identical conditions.
08:55
Isolation and Characterization of Primary Rat Valve Interstitial Cells: A New Model to Study Aortic Valve Calcification
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Cited by 16 •
2017
This protocol describes the isolation, culture, and calcification of rat-derived valve interstitial cells, a highly physiological in vitro model of calcific aortic valve disease (CAVD). Exploitation of this rat model facilitates CAVD research in exploring the cell and molecular mechanisms that underlie this complex pathological process.
04:51
Isolation of Mouse Valve Interstitial Cells: An Enzymatic Method to Isolate and Culture VICs from Mouse Aortic Valve
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2025
In this video, we demonstrate the isolation of aortic valve interstitial cells from the heart of an adult mouse using a two-step collagenase procedure and their subsequent culture in low volume of growth media.
10:29
Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets
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Cited by 6 •
2022
The presented method offers an innovative way for engineering biomimetic fiber structures in three-dimensional (3D) scaffolds (e.g., heart valve leaflets). 3D-printed, conductive geometries were used to determine shape and dimensions. Fiber orientation and characteristics were individually adjustable for each layer. Multiple samples could be manufactured in one setup.
04:19
Pressure Fixation of Isolated Murine Pulmonary Valve: A Procedure to Isolate and Chemically Fix the Mouse Pulmonary Valve in Closed Conformation
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2025
In this video, we describe the procedure to isolate and chemically fix the mouse pulmonary value in closed conformation via perfusion pressurization.
FAQs
The leaflet’s layered architecture provides the structural context needed to interpret how extracellular matrix and cells contribute to valve behavior. If those layers are disrupted, researchers may lose important relationships between organization and mechanical properties. Maintaining the architecture therefore supports more reliable examination of normal structure, remodeling, and disease-associated changes in heart-valve tissue.
These features provide complementary views of leaflet function. Extracellular matrix describes the tissue framework, cellular organization shows how cells are arranged within that framework, and mechanical properties indicate how the leaflet behaves under physical demands. Studying them together can help connect structural differences with biomechanical behavior and clarify features associated with valve regulation or dysfunction.
An isolated leaflet allows detailed investigation of tissue-level changes that may be difficult to distinguish in an intact valve. Researchers can examine how leaflet structure develops, how its matrix and cells are organized, and how remodeling alters mechanical behavior. These observations help relate microscopic and biomechanical findings to the way heart valves regulate blood flow.
The procedure begins by carefully separating an individual leaflet from surrounding valve tissue and supporting structures. Researchers then preserve the leaflet’s layered organization so it remains suitable for structural and functional examination. The prepared tissue can subsequently be assessed for extracellular matrix, cellular organization, or mechanical properties, depending on the biological question.
Dissected leaflets are useful when investigators need to identify structural features associated with valve dysfunction or disease-related remodeling. Examining the tissue at the leaflet level can reveal changes in extracellular matrix, cellular arrangement, and mechanical behavior. These findings provide biological context for understanding cardiovascular disease and for relating altered tissue structure to impaired valve function.
Leaflet analyses provide structural and functional information that can guide the evaluation of biomaterials and tissue-engineered heart-valve replacements. Comparing leaflet architecture, cellular organization, extracellular matrix, and mechanical properties helps researchers consider whether engineered tissues reproduce relevant biological characteristics. The technique therefore connects anatomical observations with design goals for replacement valve research.