"Sangamo BioSciences (NASDAQ: SGMO) has again received significant scientific validation for its proprietary technology," says biotech expert John McCamant.

In The Medical Technology Stock Letter, he explains, ""Part of what has gotten investors so excited about stem cells was the concept that some day scientists would be able to create 'personalized' stem cell types for individual therapy. We believe that this is the break that was needed to realize the potential of stem cell therapy."

"Stem cells differ from other cell types in two fundamental ways. First, they are unspecialized cells capable of renewing themselves through cell division.

"Second, under certain conditions, they can be induced to become tissue- or organ-specific cells with special functions.

"In all the excitement over the new future for embryonic stem cell, it seems investors have forgotten about adult stem cell products," notes growth stock specialist Dave Dyer.

In his Dave Dyer's Newsletter, he explains, "In fact, there are adult stem cell products either already on the market or in late clinical trials. We view this as an excellent opportunity." Here, he looks at NuVasive (NASDAQ: NUVA).

"Stem cells can grow into any type of organ or tissue and the promise is that damaged organs may be repaired or even replaced with spare parts grown from stem cells. This amazing potential could revolutionize the life sciences.

"NuVasive is a rapidly growing company with unique technology for minimally-invasive back surgery; named Osteocel, it is a stem cell-based product used to help with bone grafts done as a part of spinal surgery.