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mixing species - is this ethical?

Schweddy

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Source: Journal Gazzette

WASHINGTON – In Minnesota, pigs are being born with human blood in their veins. In Nevada, there are sheep whose livers and hearts are largely human. In California, mice peer from their cages with human brain cells firing inside their skulls.

These are not outcasts from “The Island of Dr. Moreau,” the 1896 novel by H.G. Wells in which a rogue doctor develops creatures that are part animal and part human. They are real creations of real scientists.

Biologists call these hybrids chimeras, after the mythical Greek creature with a lion’s head, a goat’s body and a serpent’s tail. They are products of experiments in which human stem cells were added to developing animal fetuses.

Chimeras are allowing scientists to watch, for the first time, how nascent human cells and organs mature and interact – not in the cold isolation of laboratory dishes but inside the bodies of living creatures. Some are already revealing deep secrets of human biology and pointing the way toward new medical treatments.

But with no federal guidelines in place, an awkward question hovers above the work: How human must a chimera be before more stringent research rules should kick in?

The National Academy of Sciences, which advises the federal government, has been studying the issue and hopes to make recommendations by February.

“We need to establish some kind of guidelines as to what the scientific community ought to do and ought not to do,” said James Battey, chairman of the National Institutes of Health’s Stem Cell Task Force.
 

doctor1

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I'm not usually a pessimist, and I'm sure that the scientists that are performing this work think that this is a great step forward in medicine, but I think that these hybrids could just as easy bring about something bad. If you think I am just being paranoid, think about how the "killer bees" came into being.:eek:
 
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