STEM CELLS BANK WILL SAVE LIVES HOW THEY COULD BE USED; Scientists Get OK for Human Cloning
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The stem cells inside an embryo will eventually give rise to every cell, tissue and organ in the fetus's body. Unlike a regular cell, which can only replicate to create more of its own kind of cell, a stem cell is pluripotent. When it divides, it can make any one of the 220 ...
stem cells. as you might expect, the vatican is vehemently opposed to embryonic stem cell science. president bush is also wary, and two years ago he all but banned federal funding for it. but most medical scientists remain convinced that stem cells hold the key to a new kind of healing:...
The bioengineered immune players called CAR T cells last longer and work better if pumped up with a large dose of a protein that makes them resemble stem cells. By Sara Reardon A CAR T cell (orange; artificially coloured) attacks a cancer cell (green). Credit: Eye Of Science/SPL ...
If Bartlett's bill passes and the president elected in 2008 allows more embryonic stem-cell funding, great. Maybe federally funded researchers will have learned a thing or two about new ways to derive embryonic stem cells. If the new president maintains Bush's stance, then at least scientists...
How do they get water from their roots to the treetops? Most land trees, including redwoods, have xylem(木质部), or a system of small, tube-like cells. But without a pump, what makes water move through the xylem? Water evapo...
in fact—the child’s own stem cells were asking themselves the same thing. Stem cells are cells that have not yet chosen a specialized fate, such as to become a neuron, or white blood cell. At some point, each stem cell decides what it will be when it “grows up,” and these deci...
Born without a windpipe, Hannah Warren spent the first two and a half years of her life in a hospital. But last month, she received new trachea grown from her own stem cells.