<qa>  What is the name of the study that will be enrolled in?A total of 24 patients, males and females 50 years of age and older, with mild to moderate Alzheimers disease AD will be enrolled in this research study. To be eligible, patients must meet the National Institute of Neurological and Communicative Disorders and StrokeAlzheimers Disease and Related Disorders Association NINCDS-ADRDA criteria for probable AD. After written informed consent is obtained, subjects will go through a screening process to determine if he or she meets the inclusion criteria. Screening procedures include medical history, blood and urine tests, neurologic exam, chest x-ray and MRI. Women who want to take part in this study must either be post-menopausal, surgically sterilized or agree to avoid becoming pregnant during the entire period of their participation in this study. 