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Neurosci Lett. 2003 Feb 27;338(2):159-63.

Cerebral glucose metabolism, cerebrospinal fluid-beta-amyloid1-42 (CSF-Abeta42), tau and apolipoprotein E genotype in long-term rivastigmine and tacrine treated Alzheimer disease (AD) patients.

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Karolinska Institutet, Department of Clinical Neuroscience Occupational Therapy and Elderly Care Research (NEUROTEC), Division of Molecular Neuropharmacology, Huddinge University Hospital, B84, 141 86, Stockholm, Sweden.


We evaluated cerebral glucose metabolism (CMRglc) and cerebrospinal fluid (CSF) levels of tau and beta-amyloid(1-42) (Abeta42), in relation to apolipoprotein E (ApoE) genotype, in patients with mild Alzheimer disease (AD) treated with rivastigmine (n=11) and tacrine (n=16) for 1 year; and two untreated AD groups. The rivastigmine-treated AD patients showed a significant increase in CMRglc as compared to both tacrine-treated and untreated AD subjects. The rivastigmine-treated AD group showed no change in CSF-tau levels after 1 year, while in contrast a significant increase as seen in tacrine-treated and untreated AD patients. The CSF-tau changes were mainly seen in ApoE epsilon4 carriers. There was no significant change in Abeta42 after 1-year treatment with either rivastigmine or tacrine. This study shows that the two long-term cholinesterase inhibitor treatments exert different effects on biological markers for AD.

[Indexed for MEDLINE]

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