Amyloid beta mediates memory formation

Ana Garcia-Osta, Cristina Alberini

Research output: Contribution to journalArticle

Abstract

The amyloid precursor protein (APP) undergoes sequential cleavages to generate various polypeptides, including the amyloid β(1-42) peptide (Aβ[l-42]), which is believed to play a major role in amyloid plaque formation in Alzheimer's disease (AD). Here we provide evidence that, in contrast with its pathological role when accumulated, endogenous Aβ in normal hippocampi mediates learning and memory formation. Furthermore, hippocampal injection of picomolar concentrations of exogenous Aβ(l-42) enhances memory consolidation. Correlative data suggest that Aβ peptides may exert their function via nicotinic acethylcoline receptors. Hence, Aβ peptides, including Aβ(1-42), play an important physiological role in hippocampal memory formation.

Original languageEnglish (US)
Pages (from-to)267-272
Number of pages6
JournalLearning and Memory
Volume16
Issue number4
DOIs
StatePublished - Apr 2009

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Amyloid
Peptides
Hippocampus
Amyloid beta-Protein Precursor
Amyloid Plaques
Nicotinic Receptors
Alzheimer Disease
Learning
Injections

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience
  • Neuropsychology and Physiological Psychology

Cite this

Amyloid beta mediates memory formation. / Garcia-Osta, Ana; Alberini, Cristina.

In: Learning and Memory, Vol. 16, No. 4, 04.2009, p. 267-272.

Research output: Contribution to journalArticle

Garcia-Osta, Ana ; Alberini, Cristina. / Amyloid beta mediates memory formation. In: Learning and Memory. 2009 ; Vol. 16, No. 4. pp. 267-272.
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