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Pitt team grows arteries with most elastic protein reported, big step for living vascular grafts
Date:1/31/2011

d to form the vessel.

Mechanical tests revealed that the cultured artery could withstand a burst pressure between 200 and 300 millimeters of mercury (mmHg), the standard unit for blood pressure, Wang said; healthy human blood pressure is below 120 mmHg. In addition to containing elastin, the artery also had approximately 10 percent of the collagen found in a natural vessel, Wang said.

The process the Pitt team used to cultivate the artery resembles how it would be used in a patient, he explained. The cell-seeded tube would be grafted onto an existing artery. As the rubber tube degrades, the vascular graft would develop into a completely biological vessel.

The next steps in the project, Wang said, are to design a vessel that fully mimics the three-layer structure of a human artery and to prepare for surgical trials.


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Contact: Morgan Kelly
mekelly@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert  

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