SAN DIEGO, CA--(Marketwire - April 15, 2008) - AltheaDx, a leading provider of contract testing services to the pharmaceutical and biotechnology industry, today announced a supply and service provider agreement with Affymetrix Inc. (NASDAQ: AFFX). The agreement enables AltheaDx to offer complete biomarker discovery and development services based on the Affymetrix GeneChip® microarray platform. AltheaDx, a recent spin-out of Althea Technologies, is making the services available to customers worldwide.