Abstract
At present acetylcholinesterase (AChE) inhibitors (AChEIs) represent the only reliable therapeutic resource for symptomatic treatment of Alzheimer Disease (AD). This study was designed to assess the effects of 6–12 month treatment with AChEIs donepezil and rivastigmine on cerebrospinal fluid (CSF) AChE and butyrylcholinesterase (BuChE) activity in AD patients. The pattern of AChE isoforms (G4, G1, G2) before and after treatment was investigated as well. In AD patients treated with donepezil a significant increase of CFS AChE activity was observed, whereas treatment with rivastigmine induced a significant decrease of AChE activity. Both drugs did not change BuChE activity and tended to restore the physiological pattern of AChE isoform. The possible significance of the influence of AChEIs on CSF AChE activity and isoforms is discussed.
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