alpha- and beta-secretase: profound changes in Alzheimer's disease.


The amyloid plaque, a neuropathological hallmark of Alzheimer's disease, is produced by the deposition of beta-amyloid (Abeta) peptide, which is cleaved from Amyloid Precursor Protein (APP) by the enzyme beta-secretase. Only small amounts of Abeta form in normal brain; more typically this is precluded by the processing of APP by alpha-secretase. Here, we… (More)


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