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In vivo neuro-receptor binding assay by Positron Emission Tomography (PET) ; Perspective in diagnosis and Therapeutic Drug Monitoring (TDM) in neuropsychiatric disease. Yasufumi SAWADA 1 , Kiyomi ITO 1 , Tatsuji IGA 1 1Department of Pharmacy, University of Tokyo Hospital, Faculty of Medicine, University of Tokyo pp.641-662
Published Date 1991/8/10
DOI https://doi.org/10.11477/mf.1431900164
  • Abstract
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 Positron emission tomograpy (PET) is an analytical imaging technique that permits the measurement of regional, specific biochemical events in human brain in vivo. To obtain quantitative information of biochemical parameters with PET, three major components are required: 1) a positron tomograph; 2) positron-emitting labeled tracers; and 3) tracer pharmacokinetic models. Using this technique dopamine, benzodiazepine, opioid and cholinergic receptor biochemistry has been studied in living animals and humans. The work carried out on the in vivo characterization of neurotransmitter systems has been directed to revealing receptor localization and affinity/number, the pharmacological character of ligand binding and the kinetic changes with physiological and pathophysiological alterations. In this article, we will review the methodology for pharmacokinetic analyses of tissue distribution data of neuroreceptor ligands and evaluate the pharmacokinetic parameters (receptor density, affinity and receptor occupancy of psychotropic drugs etc.) in physiological and pathophysiological states.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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