Native Porcine Valves
Native Porcine Valves - 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.
09:13
Two-dimensional Porcine Intestinal Organoids Reflecting the Physiological Properties of Native Gut
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2025
This study outlines a protocol for generating 2D monolayers of porcine organoids derived from the small and large intestines. The growth of these monolayers is marked by increasing TEER values, indicating robust epithelial integrity. Additionally, these monolayers exhibit physiological secretory responses in Ussing chamber experiments following the application of forskolin.
11:38
CN-GELFrEE - Clear Native Gel-eluted Liquid Fraction Entrapment Electrophoresis
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Cited by 11 •
2016
This protocol describes how to prepare and perform clear native gel-eluted liquid fraction entrapment electrophoresis (CN-GELFrEE), a native separation technique for non-covalent biomolecular assemblies and proteins from heterogeneous samples that is compatible with various downstream protein analysis techniques.
09:13
Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
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2017
The protein composition of the human mitral valve is still partially unknown, because its analysis is complicated by low cellularity and therefore by low protein biosynthesis. This work provides a protocol to efficiently extract protein for the analysis of the mitral valve proteome.
08:47
Culturing Mouse Cardiac Valves in the Miniature Tissue Culture System
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Cited by 10 •
2015
Here, we present an ex vivo flow model in which murine cardiac valves can be cultured allowing the study of the biology of the valve.
FAQs
Performance depends on the valve’s extracellular matrix architecture, not simply on the presence of biological tissue. Its three-dimensional arrangement combines collagen, which contributes strength, with elastin, which supports flexibility. Together, these features allow leaflets to respond directionally as pressure changes during the cardiac cycle, making the native structure a meaningful benchmark for engineered or processed constructs.
Pressure changes during the cardiac cycle make leaflet directionality a central functional consideration. The organized matrix enables movement that is responsive rather than random, while the balance between collagen-supported strength and elastin-associated flexibility helps the tissue accommodate changing mechanical demands. Evaluating this response shows whether a processed or engineered valve retains useful biological mechanics.
Native porcine valves provide a reference against which treated or engineered constructs can be assessed. Researchers can compare mechanical performance and structural integrity, then examine whether differences are associated with calcification or biocompatibility. This comparison helps distinguish changes introduced by decellularization or biomaterial processing from the baseline characteristics of an organized biological valve.
In a bioengineering workflow, the native tissue can serve either as a reference specimen or as starting material for bioprosthetic valve development. Studies may investigate decellularization, biomaterial processing, or subsequent tissue remodeling. Framing these interventions around the native valve helps clarify what the treatment changes and whether the resulting construct remains relevant to valve replacement design.
Key outcomes include mechanical performance, structural integrity, calcification, and biocompatibility. Together, these measures address both how a construct functions and how it maintains its tissue-like condition. A valve may appear structurally promising yet show unfavorable calcification or biocompatibility results, so evaluating the measures together provides a broader basis for judging replacement potential.
These tissues connect natural valve organization with the practical goal of designing durable replacements for diseased human valves. They offer a biologically organized comparator while also supporting investigations of processing and remodeling. Their use helps researchers interpret whether engineered constructs reproduce relevant leaflet mechanics, maintain structural integrity, and meet broader requirements for bioprosthetic development.