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
Neuroreportjournal_title
Neuroreportauthors
Liu L,Tapiola T,Herukka SK,Heikkilä M,Tanila Hdoi
10.1097/00001756-200301200-00030subject
Has Abstractpub_date
2003-01-20 00:00:00pages
163-6issue
1eissn
0959-4965issn
1473-558Xjournal_volume
14pub_type
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