Positron emission tomography study of [ 11C]methyl-tetrahydroaminoacridine (methyl-tacrine) in baboon brain
THA (1,2,3,4-tetrahydro-9-amino-acridine, tacrine), a potential therapeutic agent for patients suffering from Alzheimer's disease, has multiple pharmacological sites of action in the brain. In order to study the cerebral binding sites of THA in vivo, we labeled a close derivative of THA with ca...
Saved in:
Published in | European journal of pharmacology Vol. 236; no. 2; pp. 229 - 238 |
---|---|
Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
19.05.1993
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | THA (1,2,3,4-tetrahydro-9-amino-acridine, tacrine), a potential therapeutic agent for patients suffering from Alzheimer's disease, has multiple pharmacological sites of action in the brain. In order to study the cerebral binding sites of THA in vivo, we labeled a close derivative of THA with carbon 11 for positron emission tomography (PET) analysis. We report the biodistribution of this compound, 1,2,3,4-tetrahydro-9-[
11C]methylaminoacridine ([
11C]MTHA), in the rodent and describe the first PET experiments in non-human primates. The distribution of [
11C]MTHA in baboon brain, although rather diffuse in the gray matter, showed a higher concentration in the cortex and basal ganglia than in the cerebellum and binding could be displaced (50%) by cold THA. These results suggest that [
11C]MTHA is a promising PET ligand for the study of the cerebral binding of THA. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0014-2999 1879-0712 |
DOI: | 10.1016/0014-2999(93)90593-7 |