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2001 FEB 14 - (NewsRx.com & NewsRx.net) --
- by Michelle Marble, staff medical writer -- An amyloid-beta peptide (AB) vaccine was successful in two different mouse models of Alzheimer's disease, researchers in the United States reported.
"Vaccinations with AB can dramatically reduce amyloid deposition in a transgenic mouse model of Alzheimer's disease," wrote D. Morgan and colleagues, University of South Florida. "To determine if the vaccinations had deleterious or beneficial functional consequences, we tested eight months of A beta vaccination in a different transgenic model for Alzheimer's disease in which mice develop learning deficits as amyloid accumulates.
"Here we show that vaccination with A beta protects transgenic mice from the learning and age-related memory deficits that normally occur in this mouse model for Alzheimer's disease," continued the authors ("A beta peptide vaccination prevents memory loss in an animal model of Alzheimer's disease," Nature, 2000;408(6815):982-985).
Mice were tested for potential deleterious effects of the vaccine. During this phase of testing, all vaccinated mice performed superbly on the radial-arm water-maze test, a test ...