COSTA MESA, Calif.--(BUSINESS WIRE)--Oct. 24, 2005--Synthetic Blood International, Inc. (OTCBB:SYBD) today announced that study data suggest that its proprietary perfluorocarbon (PFC) blood substitute and therapeutic oxygen carrier Oxycyte(TM) improves cognitive recovery following traumatic brain injury in a fluid percussion injury model, a widely accepted rat model that simulates moderate head injury with prolonged cognitive deficits sustained in humans. Cognitive recovery was determined by performance in a standard water maze test. As announced previously, Synthetic Blood plans to initiate a Phase II proof-of-concept study to evaluate the safety and biological effects of Oxycyte in patients with traumatic brain injury.