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Age Changes of Concentrations of Monoamines and Related Substances in the Cerebrospinal Fluid Satoshi Takahashi 1 , Takashi Abe 1 1Department of Neurology, Iwate Medical University Keyword: cerebrospinal fluid , aging , neurotransmitter , monoamine , high performance liquid chromatography(HPLC) pp.331-336
Published Date 1991/4/1
DOI https://doi.org/10.11477/mf.1406900181

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  • Abstract
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We studied age changes of concentrations of thir-teen substances including monoamines, their precur-sors and metabolites in the cerebrospinal fluid, using high performance liquid chromatography. Cere-brospinal fluid was obtained from 106 subjects without neurological diseases (44.2±17.3years) who underwent minor operations under lumber anesthe-sia.

Concentrations of dopamine, norepinephrine, tyrosine and 3-methoxy-4-hydroxy-phenylalanine were significantly increased with age, while concen-trations of other monoamine precursors and metabolites were unchanged. There was a significant positive correlation between concentra-tions of the following substances : dopamine and norepinephrine ; tyrosine and tryptophan ; tyrosine and 3-methoxy-4-hydroxy-phenylalanine ; trypto-phan and 5-hydroxytryptophan ; homovanillic acid and 5-hydroxyindoleacetic acid. Norepinephrine concentrations were positively correlated with con-centrations of 3-methoxy-4-hydroxy-phenylglycol, whereas dopamine concentrations were not with homovanillic acid concentrations. The significance of these results was discussed with regard to age changes of transmitter secretion and metabolism, the binding capacity of receptors and cerebrospinal fluid kinetics of the measured substances.


Copyright © 1991, 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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