Journal
NEUROSCIENCE LETTERS
Volume 300, Issue 2, Pages 95-98Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/S0304-3940(01)01556-7
Keywords
tau protein; cerebrospinal fluid; brain specific proteins; blood-cerebrospinal fluid barrier function
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Tau protein (tau) is primarily localised in neurons, and after brain parenchymal damage its release into cerebrospinal fluid (CSF) is increased. The particular influences of blood-CSF barrier function and of disease topography on CSF tau levels have not been studied yet. CSF tau concentrations determined by enzyme-immunoassay in various neurological diseases (n = 61) were not dependent upon blood-CSF barrier dysfunction. Significant elevation of tau levels in patients with meningoencephalitis and cerebral hemorrhage indicates brain parenchymal damage. In contrast, tau levels remained normal in patients with bacterial meningitis if encephalitic complications did not occur. In patients with Guillain-Barre syndrome tau levels were low. Increased tau levels in active multiple sclerosis compared to clinically nonactive states indicate axonal pathology in active disease. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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