Scientists rebuild rat's lung that functions like the natural one

06/24/2010 | Washington Post (tiered subscription model), The

Scientists at Yale University said they were able to rebuild a rat's lung that worked for up to two hours when transplanted back into the animal and proved to be 95% as efficient as natural lungs in exchanging oxygen and carbon dioxide. They engineered the lung by removing all the living cells and then injecting newborn rat-derived lung cells into the organ's scaffolding while inside a bioreactor. The lead researcher said it could be 20 or 25 years before such a technique could be used in humans.

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