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Bioengineering better blood vessels

Durable conduits made by living cells might boost options for dialysis, heart bypass patients

4:22pm, February 2, 2011

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Using human cells as tiny factories, researchers can grow new blood vessels that might someday provide a valuable option for patients undergoing surgery for kidney dialysis or a heart bypass. The new study testing the bioengineered vessels in baboons and dogs raises the prospect of mass-producing such natural-tissue vessels, researchers report in the Feb. 2 Science Translational Medicine.

In coronary bypass surgery, a vein is typically stripped out of a part of the body that can manage without it and implanted on the heart as a conduit supplying blood to the heart muscle. But in some patients, vessels are inaccessible due to obe

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