SAN DIEGO, CA--(Marketwire - December 28, 2009) - Medistem Inc. (PINKSHEETS: MEDS). In a collaborative publication, a group of scientists theorized that a special type of stem cell circulating in the blood stream, called the “endothelial progenitor cell,” may be a critical factor in maintaining a long and healthy life. This was followed up with human data demonstrating the food supplement Stem-Kine increased the numbers of these cells in circulation.