OxyContin vs. Oxycodone. The active ingredient in OxyContin is oxycodone but OxyContin (a brand name derived from oxycodone continuous) has a time-release mechanism, which means the drug is released in the body over a period of time and patients have to take the drug less often.
Transplanting organs, tissues or cells from one person to another. Compare with autologous transplantation. Amniotic fluid stem cell. A type of cell derived from amniotic fluid, which is the liquid that surrounds a developing fetus in the amniotic sac.
Stem cell. Stem cells are cells which are not terminally differentiated and are therefore able to produce cells of other types. Medical researchers hope they can be used to grow specific tissues or organs.There are three types of stem cells: totipotent, pluripotent, and multipotent.A single totipotent stem cell can grow into an entire organism.nother controversy in the use of embryonic stem cells is the use of therapeutic cloning. This involves the cloning of early embryos from which stem cells are harvested, providing a larger source of the cells. Many see this as encouraging human cloning, which they think could be dangerous or unethical.