| THE STEM CELL ERA HAS BEGUN
The study of stem cells is beginning to define a new era in medicine and biomedical research. The investigation of these remarkable cells promises potential therapies for numerous diseases and injuries. Stem cells are loosely defined as cells that are able to replicate into many different cell types, while retaining the ability to replenish their own numbers. More precisely, the essential characteristics of a stem cell include the ability to: 1) retain the potential for self-renewal; and 2) sustain the population of at least one functional, differentiated cell type. Numerous sources of stem cells exist.
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