RT Journal Article
SR Electronic
T1 Donepezil Hydrochloride Preserves Regional Cerebral Blood Flow in Patients with Alzheimer’s Disease
JF Journal of Nuclear Medicine
JO J Nucl Med
FD Society of Nuclear Medicine
SP 1441
OP 1445
VO 42
IS 10
A1 Nakano, Seigo
A1 Asada, Takashi
A1 Matsuda, Hiroshi
A1 Uno, Masatake
A1 Takasaki, Masaru
YR 2001
UL http://jnm.snmjournals.org/content/42/10/1441.abstract
AB The aim of this SPECT study was to investigate the effects of donepezil on regional cerebral blood flow (rCBF) in patients with mild to moderate Alzheimer’s disease (AD) using statistical parametric mapping. Methods: rCBF was noninvasively measured using 99mTc-ethyl cysteinate dimer in 35 AD patients with a Mini-Mental State Examination score > 16 on initial evaluation. Baseline and follow-up SPECT studies with a mean interval of 12 mo were performed on these patients. We used the adjusted rCBF images in the relative flow distribution (normalization of global cerebral blood flow for each patient to 50 mL/100 g/min with proportional scaling) to compare these groups through statistical parametric mapping. Results: In the follow-up study, the adjusted rCBF was significantly preserved in the right and left anterior cingulate gyri, right middle temporal gyrus, right inferior parietal lobules, and prefrontal cortex of donepezil-treated AD patients, compared with placebo-treated AD patients. Conclusion: Treatment with donepezil for 1 y appears to reduce the decline in rCBF, suggesting preservation of functional brain activity.