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Development of the Heart

Development of the Heart

The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...

Development of Blood Vessels

Development of Blood Vessels

The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...

Heart Valves

Heart 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...

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A Novel Ex Ovo Banding Technique to Alter Intracardiac Hemodynamics in an Embryonic Chicken System

A Novel Ex Ovo Banding Technique to Alter Intracardiac Hemodynamics in an Embryonic Chicken System

Published on: May 13, 2016

Hemodynamics driven cardiac valve morphogenesis.

Emily Steed¹, Francesco Boselli¹, Julien Vermot¹

¹Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France.

Biochimica Et Biophysica Acta

|November 27, 2015

Summary

This summary is machine-generated.

Mechanical forces are crucial for heart valve development and function. Understanding cardiac valve mechanobiology, particularly in zebrafish, aids in diagnosing and treating cardiovascular diseases originating in embryogenesis.

Keywords:

Cell mechanics Mechanotransduction Morphogenesis Valvulopathy Zebrafish

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Area of Science:

Cardiovascular Biology
Developmental Biology
Mechanobiology

Background:

Cardiac valves are vital for unidirectional blood flow, enduring significant mechanical stress throughout life.
Most heart valve diseases stem from developmental abnormalities or the reactivation of fetal gene programs.
Hemodynamic forces critically influence cardiovascular development and physiology, linking normal and pathological processes.

Purpose of the Study:

To review recent advancements in cardiac valve mechanobiology.
To introduce novel technologies for studying valve development.
To explore the role of mechanical forces in cardiovascular morphogenesis and disease.

Main Methods:

Review of current literature on cardiac valve mechanobiology.
Introduction of cutting-edge zebrafish research technologies, including live cell imaging and optical methods.
Discussion of advanced modeling approaches transforming the field.

Main Results:

Highlighting the instrumental role of mechanical forces in cardiovascular development and physiology.
Emphasizing the developmental origins of most valve diseases.
Showcasing the potential of new technologies to deepen our understanding.

Conclusions:

Understanding cardiac valve mechanobiology is key to addressing cardiovascular diseases.
Zebrafish models and advanced technologies offer powerful tools for future research.
Mechanistic insights into valve development can illuminate disease pathogenesis.