Effect of donepezil on brain acetylcholinesterase activity in patients with AD measured by PET

Citation
H. Shinotoh et al., Effect of donepezil on brain acetylcholinesterase activity in patients with AD measured by PET, NEUROLOGY, 56(3), 2001, pp. 408-410
Citations number
10
Categorie Soggetti
Neurology,"Neurosciences & Behavoir
Journal title
NEUROLOGY
ISSN journal
00283878 → ACNP
Volume
56
Issue
3
Year of publication
2001
Pages
408 - 410
Database
ISI
SICI code
0028-3878(20010213)56:3<408:EODOBA>2.0.ZU;2-K
Abstract
Acetylcholinesterase (AChE) activities in the brain of three patients with AD were measured once before and once during donepezil treatment (5 mg/d in two patients, 3 mg/d in one patient) using PET and N-[C-11]methylpiperidin -4-yl acetate. Donepezil reduced k(3) values, an index of AChE activity, in the cerebral cortex by 39 +/- 5%. All patients showed some degree of sympt omatic improvement, and it was concluded that this improvement was likely c aused by improved cholinergic activity by inhibition of AChE in the brain.