SCOTTSDALE, Ariz.--(BUSINESS WIRE)--May 23, 2006--Medistem Laboratories, Inc. (OTCBB:MDSM - News; FWB:S2U), committed to the ethical development of next-generation medical therapies from non-controversial adult stem cell sources, announced today its filing of a U.S. patent application for an innovative cellular technology to treat lower back ailments by addressing causal issues and developing methodologies to prevent disc degeneration.