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Neurosci Lett. 2001 Jan 19;297(3):187-90.

Transient increase in total tau but not phospho-tau in human cerebrospinal fluid after acute stroke.

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1
Institute of Clinical Neuroscience, Unit of Neurochemistry, University of Göteborg, Sahlgren's University Hospital/Mölndal, SE-431 80, Mölndal, Sweden.

Abstract

An increase in cerebrospinal fluid (CSF)-total-tau, and recently also in CSF-phospho-tau, has been found in Alzheimer's disease (AD). However, the mechanisms for these changes are not known. We examined longitudinal CSF samples from nine patients with acute stroke. As compared with baseline levels (day 0-1), CSF-total-tau showed an increase at day 2-3 (179%; P=0.018), day 7-9 (257%; P=0.003), and after 3 weeks (425%; P=0.002) and returned to normal levels after 3-5 months (140%; NS). In contrast, there was no significant change in CSF-phospho-tau. These findings suggest that total tau and phospho-tau in CSF reflect different pathogenic processes in the brain; total-tau the degree of neuronal damage and phospho-tau the phosphorylation state of tau and thus possibly the formation of neurofibrillary tangles.

PMID:
11137759
DOI:
10.1016/s0304-3940(00)01697-9
[Indexed for MEDLINE]

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