Adult stem cells are undifferentiated cells, found throughout the body after development, that multiply by cell division to replenish dying cells and regenerate damaged tissues.Also known as somatic stem cells (from Greek Σωματικóς, meaning of the body), they can be found in juvenile as well as adult animals and humans, unlike embryonic stem cells. Adult stem cells can be isolated from a tissue sample obtained from an adult. They have mainly been studied in humans and model organisms such as mice and rats. The rigorous definition of a stem.
Adult stem cells. These stem cells are found in small numbers in most adult tissues, such as bone marrow or fat. Compared with embryonic stem cells, adult stem cells have a more limited ability to give rise to various cells of the body. Until recently, researchers thought adult stem cells could create only similar types of cells. The best stem cells for patients are Adult Stem Cells; these are taken from the body (e.g., bone marrow, muscle, even fat tissue) or umbilical cord blood and can be used to treat dozens of diseases and conditions. Over 1 ½ million people have already been treated with adult stem cells.
Normal differentiation pathways of adult stem cells. In a living animal, adult stem cells are available to divide for a long period, when needed, and can give rise to mature cell types that have characteristic shapes and specialized structures and functions of a particular tissue. Currently, blood stem cells are the only type of adult stem cell used regularly for treatment; they have been used since the late 1960s in the procedure now commonly known as bone marrow transplant.Transplants of neural stem cells have been tried in small numbers of patients with brain disorders such as Parkinson disease, and the FDA recently approved a clinical trial of neural stem cells .