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Development of Blood Vessels01:07

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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.
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Isolation of Pulmonary Artery Smooth Muscle Cells from Neonatal Mice
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Published on: October 19, 2013

Postnatal pulmonary artery development from transcript to tissue.

Erica L Schwarz1, Abhay B Ramachandra2, Nicola Yeung3

  • 1Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA.

Journal of the Royal Society, Interface
|June 16, 2026
PubMed
Summary
This summary is machine-generated.

This study details normal postnatal pulmonary artery development in mice, providing crucial data to understand congenital heart defects and surgical impacts on pulmonary artery function and structure.

Keywords:
computational modellingdevelopmental biologypulmonary artery

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Area of Science:

  • Cardiovascular Biology
  • Developmental Biology
  • Biomedical Engineering

Background:

  • Congenital conditions and surgeries significantly impact pulmonary artery hemodynamics during development.
  • Pathological conditions include patent ductus arteriosus, pulmonary atresia/stenosis, and hypoxemia-induced pulmonary hypertension.
  • Surgical interventions like Blalock-Thomas-Taussig shunt, Glenn, and Fontan procedures alter pulmonary artery function.

Purpose of the Study:

  • To investigate the natural postnatal development of pulmonary arteries from biological and mechanical viewpoints.
  • To establish a data-informed computational model for simulating pulmonary artery development under hemodynamic perturbations.
  • To improve understanding of pulmonary artery phenotypes for better diagnosis, treatment, and prognosis.

Main Methods:

  • Collected novel data from wild-type mice on postnatal changes.
  • Analyzed gene expression, wall composition, and biomechanical properties of proximal pulmonary arteries.
  • Developed a computational model informed by experimental data.

Main Results:

  • Documented normal postnatal changes in gene expression, wall composition, and biomechanical properties of proximal pulmonary arteries in mice.
  • Established a novel computational model of pulmonary artery development.
  • The model can simulate outcomes in response to hemodynamic perturbations.

Conclusions:

  • Understanding normal pulmonary artery development is fundamental to addressing congenital conditions and surgical interventions.
  • The developed computational model provides a valuable tool for predicting the effects of hemodynamic changes on pulmonary artery development.
  • This research lays the groundwork for improved diagnostic and therapeutic strategies for pulmonary artery diseases.