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.
Haematopoiesis is the formation of blood cellular components. All cellular blood components are derived from haematopoietic stem cells. In a healthy adult person, approximately 1011â1012 new blood cells are produced daily in order to maintain steady state levels in the peripheral circulation.