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Revelation of a 3D printed heart prototype from human tissue

Scientists presented Monday, April 15 in Tel Aviv, Israel, a prototype of human heart printed in three dimensions from human tissue and with vessels. Progress "Major" according to them, in the treatment of cardiovascular diseases; the heart should also allow better prevention of graft rejection.

"This is the first time that we print a heart in its entirety with its cells and blood vessels, it is also the first time that we use material and cells from the patient"said one of the scientists, Professor Tal Dvir, who led the research. Researchers at Tel Aviv University presented to the press this inert heart the size of a cherry, immersed in a liquid.

"Difficulties remain"

Scientists had already succeeded in producing the structure of a heart in the past, but with synthetic or natural elements, and not from the patient. The presence of this foreign body could then cause an immune response of the body, continued the professor.

Get informed before a heart operation

In an article published by the scientific journal Advanced Science, the authors of the study say they have designed a method to not only produce, from cells taken from the patient's tissue, the hydrogel used to shape perfectly vascularized cardiac patches. compatible with the recipient, but also whole cell structures with their main vessels, like hearts.

However, there are still steps to go beyond the simple prototype stage, as noted by scientists: "While 3D printing is considered a promising approach to designing whole organs, several challenges remain. "

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