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CSF phosphorylated tau protein correlates with neocortical neurofibrillary pathology in Alzheimer's disease.
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2006 (English)In: Brain, ISSN 0006-8950, E-ISSN 1460-2156, Vol. 129, no Pt 11, 3035-41 p.Article in journal (Refereed) Published
Abstract [en]

Hyperphosphorylated tau protein (P-tau) in CSF is a core biomarker candidate of Alzheimer's disease. Hyperphosphorylation of tau is thought to lead to neurofibrillary changes, a neuropathological hallmark of this type of dementia. Currently, the question is unresolved whether CSF levels of P-tau reflect neurofibrillary changes within the brain of a patient with the illness. Twenty-six patients were included with intra-vitam CSF as well as post-mortem neuropathological data. In the CSF, P-tau phosphorylated at threonine 231 (P-tau231P) was analysed. Post-mortem, scores of neurofibrillary tangles (NFT) and neuritic plaques (NP) were assessed in frontal, temporal, parietal and hippocampal cortical areas. In the same cortical regions, load of hyperphosphorylated tau protein (HP-tau load) was determined. Concentrations of P-tau231P were measured in frontal cortex homogenates. We found significant correlations between CSF P-tau231P concentrations and scores of NFTs and HP-tau load in all neocortical regions studied. The score of NPs was correlated with CSF P-tau231P only within the frontal cortex. There was a correlation between P-tau231P in CSF and brain homogenates. These findings indicate that CSF P-tau231P may serve as an in vivo surrogate biomarker of neurofibrillary pathology in Alzheimer's disease.

Place, publisher, year, edition, pages
2006. Vol. 129, no Pt 11, 3035-41 p.
National Category
Clinical Laboratory Medicine
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URN: urn:nbn:se:uu:diva-171372DOI: 10.1093/brain/awl269PubMedID: 17012293OAI: oai:DiVA.org:uu-171372DiVA: diva2:510651
Available from: 2012-03-17 Created: 2012-03-17 Last updated: 2012-03-17

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