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Alzheimer Disease

Glutamate receptor upregulates amyloid precursor protein secretion

Published in Proteomics Weekly, May 31st, 2004

Metabotropic glutamate receptor stimulation upregulates soluble amyloid precursor protein fragment secretion in the rat retina in vivo.

According to recent research from England, "Using the novel rat retinal-vitreal model we have investigated the effect of metabotropic glutamate receptor activation on amyloid precursor protein (APP) metabolism. The release of low molecular weight fragments of APP, at 15-23 kDa in particular, was markedly upregulated by the metabotropic glutamate receptor agonist (1S,3R)-1-amino-1,3-cyclopentane dicarboxylic acid [(1S,3R)ACPD] in a concentration- and time-dependent manner, and this response was blocked by the receptor antagonist...

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