Word: donors
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...procedure has faced ethical complications due to the necessary use of immunosuppressants, or anti-rejection drugs, to prevent the patient’s immune system from rejecting the donor tissue. These toxic drugs expose patients to infection and increase the risk of cancer, prompting many to quesiton whether it is right to subject patients to such risks for a non-lifesaving procedure...
With clearance from the hospital and the search for patients underway, donors must also be found, since Massachusetts residents who sign up as organ donors on their driver’s license will not be automatically considered face donors. While donor and recipient must have the same blood type, a face transplant requires their race, gender and general age to also match in order to create as natural a look as possible for the patient...
...nuclear transfer, stem cells are created by inserting the nucleus from a donor's cell, usually a skin cell, into an egg cell, whose DNA-containing nucleus has been removed. The new cell then starts to divide and produce stem cells. In some cases, however, through mistakes in the nuclear-transfer process, eggs may begin dividing on their own. And Hwang may have increased his chances of parthenogenesis by using the gentler, squeezing technique he pioneered to remove the egg's nucleus; the process may have actually left behind enough genetic material for the egg to spontaneously divide...
...single egg, Daley's team, which included leading researchers from England, Japan and Canada, conducted a whole-genome analysis of the DNA from Hwang's stem cell line. By analyzing tens of thousands of gene snippets on the cells' genomes, and comparing these signatures to those of the egg donor and of the skin cell donor, they were able to determine that the DNA fingerprint of the stem cells was consistent with that of the egg. "The genetic signature of a parthenote is very very obvious," says Daley. Because the genetic material in parthenotes comes only from the egg, they...
...product of the same thuggish authoritarian power structure that has ruled the country since 1969. And they suggest that the principles on which Libya is resolving problems sometimes amount to extortion. For example, the release of the Bulgarians - spurious though their convictions may have been - saw still undisclosed donor nations acting on behalf of the E.U. shell out $460 million in damages for the Libyan victims of HIV infection, and also landed Tripoli diplomatic and commercial rewards that include the construction of a nuclear power plant. Even worse, French daily Le Monde reports that deal also involved French promises...