Histochemically reactive zinc in plaques of the Swedish mutant beta-amyloid precursor protein transgenic mice.

Abstract excerpt

Endogenous metals such as zinc may contribute to beta-amyloid (Abeta) aggregation and hence the plaque formation. In the present study, we examined brains of four Swedish mutant amyloid precursor protein (APP) transgenic mice at 12 months of age for histochemically reactive zinc in the plaques. Here, we report that all the Congo red (+) mature plaques contained chelatable zinc, as demonstrated by staining with...

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