“Since a laboratory in North Carolina made a bladder in 1996, scientists have built increasingly more complex organs. There have been five windpipe replacements so far. A London researcher, Alex Seifalian, has transplanted lab-grown tear ducts and an artery into patients. He has made an artificial nose he expects to transplant later this year in a man who lost his nose to skin cancer. Sir Roy Calne, an 82-year-old British surgeon, figured out in the 1950s how to use drugs to prevent the body from rejecting transplanted organs. Now, with the quest to build a heart, researchers are tackling the most complex organ yet.”
http://online.wsj.com/article/SB10001424127887323699704578328251335196648.html
