The findings from this study could lead to stimulating artery formation without the need for transplantation. The study was carried out with mice but, as the blood vessels of the human heart are similar, it could lead to new treatments for the disease or to restore blood flow after a heart attack, the researchers said.

"If we want to regenerate diseased hearts, we need to first understand how the heart creates the building blocks of healthy coronary arteries," said lead author Katharina Volz from Stanford University."Our study describes step-by-step how coronary arteries develop in the embryonic mouse heart,"  Volz said.

The research revealed that the smooth muscle of the arteries is derived from cells called pericytes. The small capillary blood vessels throughout the developing heart are covered in pericytes.

As pericytes are spread all over the heart on all the small blood vessels, they could be used as a target to stimulate artery formation without the need for transplantation, the study said.

The findings appeared in the journal eLife.



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