Related Experiment Video
Updated: May 20, 2026
10:53
Dissection Techniques and Histological Sampling of the Heart in Large Animal Models for Cardiovascular Diseases
Published on: June 16, 2022
[The heart]
1Unité de Chirurgie cardiaque, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou 20, rue Leblanc 75915 Paris.
Bulletin De L'Academie Nationale De Medecine
|July 21, 2012
Summary
Developing self-reconstructing hearts using decellularized scaffolds and cells offers a promising alternative therapy for heart failure. While full heart replacement is distant, partial tissue regeneration shows near-term potential for cardiac repair.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Cardiovascular Engineering
Context:
- Growing incidence of heart failure necessitates novel therapeutic strategies beyond transplantation.
- Limitations of current artificial hearts and transplantation drive research into regenerative approaches.
- Decellularized animal scaffolds offer a potential foundation for cardiac tissue engineering.
Purpose:
- To explore the feasibility of cardiac self-reconstruction using decellularized scaffolds seeded with appropriate cells.
- To identify challenges and influencing factors in scaffold recolonization and functional tissue development.
- To assess the potential for partial cardiac tissue replacement as a more immediate application.
Summary:
- Decellularization techniques are advanced, but optimal cell types (cardiomyocytes, endothelial, smooth muscle cells) and delivery methods for cardiac tissue regeneration remain unclear.
- Scaffold biochemical signals and substrate physical properties significantly influence cell behavior and functional tissue development.
- While whole-heart regeneration is a long-term goal, cell-seeded scaffolds show promise for repairing infarcted myocardium and replacing cardiac valves.
Impact:
- Advances in bioengineering techniques for cardiac repair and regeneration.
- Potential for innovative treatments for heart failure patients.
- Development of strategies for partial cardiac tissue replacement, such as myocardial strengthening and valve repair.
Related Concept Videos
01:16Chambers of the Heart
The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
Deoxygenated blood from the body is received in the right...
01:13Location and Orientation of the Heart
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
01:07Overview of the Heart
The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's structure...
The heart's structure...
01:20Anatomy of the Heart
The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
01:27Anatomy of the Heart
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
01:16Heart Valves
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...
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...