The definition of stem cells was defined by the Chief medical officer's Advisory Group as "unspecialized cells which have not yet differentiated into any specific type of tissue". That definition was later expanded to "cells that can proliferate with almost unlimited potential, maintaining a pool of growing and dividing cells, with the added ability to some of the daughter cells can differentiate into specific cell types" by David A. Prentice, Professor of Medical and Molecular Genetics at India State University.

With stem cell's significant adaptability and self dividing ability, these cells, unique from any other have opened up many doors to clinical applications. Stem cells can reproduce themselves at useful speeds as well as specialize themselves, making them nearly perfect for gene therapy.

However, currently, adult stem cells are much more easier to produce than embryonic stem cells and adult stem cells are already being used in various medical applications. The research of embryonic stem cells is far behind that of adult stem cells so patients are reaping the health benefits of adult stem cells much more. Adult stem cells can be vastly supplied and are proven to have extremely beneficial advantages over other sources of stem cells. Embryonic stem cells have shown problems in reinjection.

In this web site you will learn the outstanding traits of the stem cell and how those traits are applied to research of treatment for Parkinson's Disease.