FAD mutant PS-1 gene-targeted mice: increased A beta 42 and A beta deposition without APP overproduction.

Abstract excerpt

To investigate the consequences of mutant presenilin-1 (PS-1) expression under the control of the normal PS-1 gene, a gene-targeted mouse bearing the FAD mutation P264L was made. Gene-targeted models are distinct from transgenic models because the mutant gene is expressed at normal levels, in the absence of the wild-type protein. PS-1(P264L/P264L) mice had normal expression of PS-1 mRNA, but levels of the N- and...

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