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Japanese

THE QUANTITATIVE MICRODETERMINATION OF MONOAMINE OXIDASE IN THE CENTRAL NERVOUS TISSUES Hideyuki Uchimura 1 , Makoto Hirano 1 , Masashi Saito 1 , Akira Mukai 1 , Hidebumi Hazama 2 1Hizen National Mental Hospital 2Department of Neurochemistry, Faculty of Medicine, Kyushu University pp.341-345
Published Date 1974/3/1
DOI https://doi.org/10.11477/mf.1406203518
  • Abstract
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The purpose of our studies is to investigate the relationships between emotional behaviors and bi-ogenic amines. In this paper, procedures for the quantitative microdetermination of monoamine ox-idase in the central nervous tissues have been described.

1) Frozen-dried sections were prepared from the adult rat brains according to the Lowry's method. The tissue samples of 1-3 tig dry weight were dissected under the stereomicroscope.

2) Buffer substrate solution containg 14C-tyramine was added to the sample in a pointed microtube, mixed without warming and incubated at 38°C for 30 min. The isotopic reaction products were ex-tracted into ethyl acetate and their radioactivity was determined in the liquid scintillation counter.

3) The reliabilities of this enzyme assay system were studied.

4) Examples of the estimation of MAO activities were demonstrated in various cellular populations of hypothalamus and in each laminar structures of hippocampus.


Copyright © 1974, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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