STEM CELLS

Stem cells are a class of undifferentiated cells that are able to differentiate into specialized cell types.They are the cells found in all multi cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division.At present research in the stem cells is considered to be the toughest and greatest.Because Stem cells can now be grown and transformed into specialized cells with characteristics consistent with cells of various tissues such as

muscles or nerves.There are many ways in which human stem cells can be used in research.They can be used to test new drugs.Perhaps the most important potential application of human stem cells is the generation of cells and tissues that could be used for cell based therapies.Today, donated organs and tissues are often used to replace ailing or destroyed tissue, but the need for transplantable tissues and organs far outweighs the available supply. Stem cells, directed to differentiate into specific cell types, offer the possibility of a renewable source of replacement cells and tissues to treat diseases including Alzheimer's diseases and so many other diseases.