Heart Valve Isolation
Heart Valve Isolation - Related Videos
01:16
Heart Valves
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2025
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves. The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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.
06:55
Protein Isolation from the Developing Embryonic Mouse Heart Valve Region
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Cited by 2 •
2014
The analysis of protein expression in young embryonic mouse valves has been hampered by the limited tissue available. This manuscript provides a protocol for preparing protein from developing embryonic mouse valve regions for western blot analysis.
10:56
Transplantation of Pulmonary Valve Using a Mouse Model of Heterotopic Heart Transplantation
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Cited by 7 •
2014
In order to understand the cellular and molecular mechanisms underlying neotissue formation and stenosis development in tissue engineered heart valves, a murine model of heterotopic heart valve transplantation was developed. A pulmonary heart valve was transplanted to recipient using the heterotopic heart transplantation technique.
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
Preserving the leaflet, annulus, and supporting structures allows investigators to examine the valve as an organized unit rather than as disconnected tissue fragments. The leaflet provides tissue for structural and mechanical assessment, while the annulus and supports retain anatomical context. Maintaining tissue integrity is essential when relating valve architecture to function.
Removing attached myocardium and connective tissue narrows the sample to valve-specific structures. This separation helps investigators focus on leaflet, annular, and supporting-tissue features without surrounding cardiac tissue dominating observations. The resulting preparation is suited to targeted studies of valve anatomy, extracellular matrix organization, biomechanics, and cellular behavior.
An isolated valve supports several complementary levels of analysis. Its anatomy can be examined directly, extracellular matrix organization can be characterized, and its mechanical behavior can be tested. The same preparation can also support cellular studies. Combining these perspectives helps connect tissue structure with function, an important goal in biology and valve research.
Preserving tissue integrity makes the isolated preparation suitable for studies that depend on intact organization. Investigators can relate the leaflet, annulus, and supporting structures to extracellular matrix arrangement and mechanical behavior, while maintaining material appropriate for cellular analysis. This supports more coherent interpretation of structure-function relationships.
The workflow begins with careful excision of the selected valve from the heart. Attached myocardium and connective tissue are then removed, while the leaflet, annulus, and supporting structures are retained. Finally, the isolated tissue is preserved under conditions intended to maintain its integrity for downstream analysis.
After isolation, the tissue can be directed to histological analysis, mechanical testing, cell culture, or tissue-engineering studies. These uses examine different properties: histology addresses organization, testing addresses biomechanics, culture supports cellular investigation, and engineering research uses the valve as material for studying approaches related to replacement therapies.
Heart Valve Isolation is especially relevant when biology research examines development or disease-related remodeling. The preparation provides access to valve tissue and its extracellular matrix, enabling investigators to study how structure, mechanical behavior, and cellular characteristics relate to these processes. Such work can inform tissue-engineering research and efforts to improve replacement therapies.