June 2, 2004
Esmail D. Zanjani found that a
few cells in sheep go on using an injected marker gene for years.
Gene therapy with fetuses has been tested-with mixed results-in
sheep, monkeys, and mice. Dr. Zanjani, a professor of medicine
and physiology at the University of Nevada's medical school at
Reno and a collaborator
of Dr. Anderson's, has injected sheep fetuses
with a new marker gene and found that some of the animals continue
to use the gene for years to make a protein. But the proportion
of cells that do so is low, he reported >>> See
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