Embryonic cells have the potential to develop into all basic tissue types.
But that article confirmed only that her cells could make blood, not that they would transform into other tissue types.
For this reason, alterations in either the stains or the staining methods can accentuate certain tissue types and structures.
When Dr. Greenstein realized that Mr. Candelaria was serious, he made sure that their blood and tissue types matched.
At issue now is whether Geron can expand those rights to include an additional 12 tissue types.
For information other than the basic tissue types, doctors have to write, phone or send faxes or e-mail to the individual registries, Dr. Confer said.
They had to integrate functional components like a nose and lower eyelids, as well as different tissue types, including skin, muscles, bony structures, arteries, veins and nerves.
The foundation patented the discovery and granted Geron exclusive rights to develop the cells into six tissue types that might be used to treat disease.
Hundreds of thousands of cord blood samples have been frozen and banked, and are available immediately if a donor and recipient have matching tissue types.
It is expensive to collect the names and tissue types of millions of people, or tens of thousands of units of umbilical cord blood.
The average turnover time is different for different tissue types.
