Abeta levels in serum, CSF and brain, and cognitive deficits in APP + PS1 transgenic mice.

Abstract:

:We compared beta-amyloid peptide (Abeta) levels in the serum, CSF and brain (hippocampus) and correlated these with spatial learning in APP+PS1 transgenic mice. Compared with non-transgenic littermates, male 14-month-old APP + PS1 mice were impaired in spatial learning in the water maze. Among the APP + PS1 mice, only the hippocampal insoluble Abeta42 level correlated with spatial memory (r = -0.44). The levels of insoluble Abeta40 and Abeta42 were highly correlated (r = 0.92), and also correlated with soluble hippocampal Abeta42 (r = 0.64/0.69), which further correlated with the CSF Abeta42 (r = 0.52). None of these parameters correlated with serum Abeta40 levels. These findings support the role of insoluble Abeta42 in memory dysfunction and suggest a model with several pools (insoluble, extracellular soluble, CSF) of Abeta being in partial equilibrium with each other.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Liu L,Tapiola T,Herukka SK,Heikkilä M,Tanila H

doi

10.1097/00001756-200301200-00030

subject

Has Abstract

pub_date

2003-01-20 00:00:00

pages

163-6

issue

1

eissn

0959-4965

issn

1473-558X

journal_volume

14

pub_type

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