What are stem cells?
Stem cells are unspecialized cells in the human body. They have two important characteristics that distinguish them from other cells in the body. They can replenish their numbers for long periods through cell division. And after receiving certain chemical signals, they can differentiate or transform into specialized cells with specific functions such as a heart cell or nerve cell.
What is stem cell therapy?
Stem cell therapy is a group of new techniques or technologies. These technologies rely on replacing diseased or dysfunctional cells with healthy, functioning ones. These new techniques are being applied to wide range of human diseases, that including many types of cancer, neurological diseases like spinal cord injuries and diabetes. Replacing dead cells in the retina with new ones may cure even presently incurable eye diseases like glaucoma and macular degeneration.
The Function of stem Cells
Cells are the basic building blocks of human body. These tiny structures compose skin, muscles, bones and all of the internal organs. They hold many of the keys to do bodies function. Cells serve both a structural and a functional role in the body and performing an almost endless variety of actions to sustain the body’s tissues and organs. There are many of different specialized cell types in the adult body. All of these cells perform very specific functions for the tissue and organ they compose. These specialized cells in the heart muscle beat rhythmically through the conduction of electrical signals. The cells of the pancreas produce insulin to help the body convert food to energy. These mature cells have been differentiated or dedicated to performing their special tasks.
How does stem cell therapy work?
Stem cells are indispensable in performing vital functions for the body. They can also exist outside the body. They can live and divide special solutions in test tubes. This ability of certain cell types to live isolated from other cells under controlled conditions. Through the isolation and targeted manipulation of cells, scientists are finding ways to identify young regenerating ones that can be used to replace damaged or dead ones in diseased organs. This therapy is similar to the process of organ transplant. Only the treatment consists of transplantation of cells rather than organs. The cells that have shown by far the most promise of supplying diseased organs with healthy new cells are the stem cells.