Researchers are developing new ways to harvest babies' genes in less risky ways--for example, from fetal DNA floating in a mother's blood or from cells
that have detached from the placenta and lodged in her cervix.
The German Navy also is exploring fuel cells
and in October 2005 commissioned two new fuel cell
-powered submarines from Siemens KWU, according to a 23 January 2006 report by the online industry publication Fuel Cell
Our science has advanced to the point that we now envision a single laboratory serving multiple continents utilizing an efficient method of cell
propagation and harvesting on a commercial scale.
The new tank would give Toyota's fuel cell
vehicles a 375-mile cruise range, making it comparable to cars with internal combustion engines.
Unlike adult and umbilical cord blood stem cells
, which have more restricted cell
destinies, embryonic stem cells
offer the most versatility and have the most potential for research.
Granted, the federal government is focusing its expenditures mainly on adult stemcell testing, but it must be remembered that the most gains in stem-cell
testing have been made with adult stem cells
Another source of inner ear progenitor cells
are embryonic stem cells
, which are derived from the inner cell
mass of the mouse blastocyst (figure 3).
They have no specific job in the body, so scientists can use chemicals to force the cells
to become a cell
type that's missing or damaged.
This limitation is due to the long, but limited, lifespan of memory T cells
and to their low frequency, usually below 1/50,000 (12).
As previously discussed, IFN-[alpha] production is substantially decreased in patients with AIDS, which the researchers discovered was caused by both decreased production per cell
as well as a decreased number of pDCs.
That's the promise of the miniaturized fuel cell
, which could end the long run of the storage battery.
Coated with antibodies, an invader cell
may stop functioning properly.