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Partial Purification of Endogenous Digitalis-like Cornpound (s) in Cord Blood pp.970-971
Published Date 1991/10/1
DOI https://doi.org/10.11477/mf.1543900846
  • Abstract

Several investigators have reported the presence in human body fluids of endogenous circulating glycoside-like substance (s) that may inhibit the activity of the cell membrane sodium/potassium pump. Increased circulating concentrations of these inhibitor (s) have been found in pregnancy, in neonates, in arterial hypertension, and in hepatic and cardiac insufficiency, which suggests that the compound (s) could have a role in these states. These substances may also interact with several anti-digoxin antisera. However, neither the structure nor the site of production of these substances is clear. In addition, whetherthese inhibitors represent various compounds in plasma and (or) towhat extent they are the results of the nonspecificity of the assaysused is not yet clear. The different methods used for extracting andpurifying these substances could partly explain the controversialresults in the literature.

We describe a method for partial purification of the substances that cross-react with anti-digoxin antisera and inhibit 86Rb uptake inplasma from neonates (cord blood) and adults.


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

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電子版ISSN 1882-1375 印刷版ISSN 0301-2611 医学書院

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