A 3D-printed heart with blood vessels has been made using human tissue
The rabbit-sized heart was made from a patient's own cells and tissues, using techniques that could help increase the rate of successful heart transplants in future
How it worked: A biopsy of tissue was taken from patients, and then its materials were separated. Some molecules, including collagen and glycoproteins, were processed into a hydrogel, which became the printing ink. Once the hydrogel was mixed with stem cells from the tissue, the researchers from Tel Aviv University were able to create a patient-specific heart that included blood vessels. The idea is that such a heart would be less likely to be rejected when transplanted. The study was published in the journal Advanced Science
Let it flow: Until now, researchers have only been able to print simple tissues lacking blood vessels, such as 3D, fully vascularized engineered heart is a step in the right direction.
The impact: Heart disease causes one in four deaths in the US (about 61
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- Associated Press Tel Aviv University