Behavioral changes in transgenic mice expressing both amyloid precursor protein and presenilin-1 mutations: lack of association with amyloid deposits.

Abstract excerpt

Mutations in the amyloid precursor protein (mAPP) and in presenilin 1 (mPS1) have both been linked to increased production of the beta-amyloid peptide (A beta). Doubly transgenic mice produced by mating of a parental line carrying the "Swedish" (K670N/M671L) APP mutation with a FAD4 (M146L) mutant presenilin 1 line developed numerous fibrillar A beta deposits by 6 months of age. Prior work demonstrated that mAPP...

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