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bioTheranostics Appoints Judd Jessup, Former CEO of US Labs, to its Board of Directors

Carlsbad, CA, July 28, 2006 – bioTheranostics, a molecular cancer profiling company enabling personalized medicine in oncology, announced today the appointment of Judd Jessup to its Board of Directors.

Mr. Jessup brings to bioTheranostics over 30 years of experience in the management of healthcare companies. Most recently, Mr. Jessup served as CEO of US Labs, which was acquired by Laboratory Corporation of America in 2005. Prior to US Labs, Mr. Jessup was President of the HMO Division of FHP International and President of TakeCare, Inc., a 750,000 member, publicly-traded HMO. Mr. Jessup currently serves on the Boards of Directors of XIFIN, Inc., AccentCare, Inc., NovaMed, Inc. and Corvel Corporation.

"We are truly excited that Judd has joined our Board," said Antonius Schuh, Ph.D., Chief Executive Officer of bioTheranostics. "His extensive experience as a seasoned Board member of several public companies and direct experience as a CEO in the promising space of laboratory diagnostics will complement our existing Board as we move closer towards launching our own CLIA certified laboratory operation."

"bioTheranostics is one of the industry leaders driving personalized medicine through innovative molecular diagnostic technologies with significant clinical relevance. I'm excited to join the company's Board of Directors at a time when patients begin to benefit from diagnostic tests enabled by the company's groundbreaking technologies," said Mr. Jessup.

About bioTheranostics, Inc.
bioTheranostics, is focused on developing and commercializing molecular diagnostic technologies for personalized medicine in cancer treatment. The company is targeting the oncology market with three first-in-class molecular cancer profiling technologies: Molecular Cancer Identification (MCID), Breast Cancer Profiling (BCP) and Drug Response Profiling (DRP). To date, bioTheranostics has licensed its MCID and BCP technologies for specific clinical indications to Quest Diagnostics, Laboratory Corporation of America and Agendia BV. The Company anticipates to operate its own CLIA certified diagnostic laboratory operations in early 2007 to complement its current partner offerings. bioTheranostics, formerly Arcturus Bioscience, has recently relocated its headquarters from Mountain View, California, to Carlsbad, California.

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