Electronic Blood Vessels to the Rescue

The number one cause of mortality worldwide is cardiovascular disease. Now scientists reveal electronic blood vessels might one day use electricity to stimulate healing and deliver gene therapies to help treat such maladies, a new study finds.

One-third of all U.S. deaths are linked to cardiovascular disease, according to the American Heart Association. When replacement blood vessels are needed to treat advanced cases of cardiovascular disease, doctors prefer ones taken from the patient’s own body, but sometimes the patient’s age or condition prevents such a strategy.

Artificial blood vessels that can prove helpful in cases where replacements more than 6 millimeters wide are needed are now commercially available. However, when it comes to smaller artificial blood vessels, so far none have succeeded in clinical settings. That’s because a complex interplay between such vessels and blood flow often triggers inflammatory responses, causing the walls of natural blood vessels to thicken and cut off blood flow, says Xingyu Jiang, a biomedical engineer at the Southern University of Science and Technology in Shenzhen, China. Jiang and his team report having developed a promising new artificial blood vessel that doesn’t cause inflammatory response. The scientists detailed their findings online on 1 October in the journal Matter.

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