Abstract: The present invention relates to the development of a pharmacological non-human animal model that associates memory loss to histopathological features found in the brain of a subject having Alzheimer's Disease. In one embodiment, a four-week continuous infusion of a Fe2+, A?42 and buthionine sulfoximine (FAB) solution in the left ventricle of young adult Long-Evans rats induced memory impairment accompanied by increased hyperphosphorylated Tau protein levels in cerebrospinal fluid. Brains from treated animals displayed neuritic plaques, tangles, neuronal loss, astrogliosis and microgliosis in hippocampus and cortex. The present invention may be utilized in evaluating preventive, therapeutic and diagnostic means for neurologic diseases.

Abstract: The present invention is based, in part, upon the discovery that the use of an anti-HIV drug in combination with at least one cortisol blocker such as procaine, reduces the side effects associated with anti-HIV drugs. The invention also relates to a method of treating the high cortisol catabolic effects of diseases such as AIDS in the HIV positive population and those with AIDS related complexes by the administration of a cortisol blocker. The present invention also discloses a composition comprising an anti-HIV drug and cortisol blocker. More specifically, the present invention relates to a cortisol blocking composition which comprises procaine, ascorbic acid and zinc heptahydrate.