Bibliographic
The goal of this study was to determine the effects of Abeta immunization on the AD-like behavioral deficits exhibited by TgCRND8 murine model of Alzheimer's disease. In summary the data showed that immunization of the TgCRND8 mouse model of AD with Abeta peptide 1-42 reduced both deposition of cerebral fibrillar Abeta and cognitive dysfunction, without altering total levels of Abeta peptide in the brain. The data imply that either a approximately 50% reduction in dense-cored Abeta plaques is sufficient to affect cognition, or that vaccination modulates the activity/abundance of a small subpopulation of especially toxic Abeta species.These data support the hypotheses that Abeta plays a central role in Alzheimer's disease and that procedures that modulate its production, assembly and/or removal might be used as treatments.