The gene PSEN2 encodes presenilin-2, a subunit of γ-secretase, the aspartyl protease responsible for Aβ generation. Missense mutations in PSEN2 are a rare cause of early onset Alzheimer's disease.

Some people breeze through their 70s with the vitality of someone decades younger, while others visibly decline. Ditto for their organs. Time and genetics explain some of this wear and tear, but does ...

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More than 300 mutations in PSEN1 have been catalogued, but none are quite like the one Bart De Strooper and colleagues at the Flanders Institute for Biotechnology in Leuven, Belgium, reported on ...