Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.

Methods for the quantitative determination of rat apolipoproteins A-I, A-IV, and E by electroimmunoassay are described. Apolipoproteins present in diluted samples of biological fluids (approx. 2 ml) were concentrated by precipitation with deoxycholate and trichloroacetic acid. The protein pellets we...

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Main Authors: G M Dallinga-Thie, P H Groot, A van Tol
Format: Article
Language:English
Published: Elsevier 1985-07-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520343200
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author G M Dallinga-Thie
P H Groot
A van Tol
author_facet G M Dallinga-Thie
P H Groot
A van Tol
author_sort G M Dallinga-Thie
collection DOAJ
description Methods for the quantitative determination of rat apolipoproteins A-I, A-IV, and E by electroimmunoassay are described. Apolipoproteins present in diluted samples of biological fluids (approx. 2 ml) were concentrated by precipitation with deoxycholate and trichloroacetic acid. The protein pellets were solubilized in 0.1 ml of 0.5 M NaOH and these samples were delipidated with tetramethylurea and assayed. This protocol enables the measurement of apolipoprotein concentrations that are at least 10 times lower than normally detectable; 0.2 micrograms of apolipoprotein A-IV, 0.2 micrograms of apolipoprotein A-I, and 0.8 micrograms of apolipoprotein E can be easily detected in samples of 2 ml.
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spelling doaj.art-d8c9c3f5182e4007a37b797a62a56cce2022-12-21T22:09:22ZengElsevierJournal of Lipid Research0022-22751985-07-01267889892Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.G M Dallinga-ThieP H GrootA van TolMethods for the quantitative determination of rat apolipoproteins A-I, A-IV, and E by electroimmunoassay are described. Apolipoproteins present in diluted samples of biological fluids (approx. 2 ml) were concentrated by precipitation with deoxycholate and trichloroacetic acid. The protein pellets were solubilized in 0.1 ml of 0.5 M NaOH and these samples were delipidated with tetramethylurea and assayed. This protocol enables the measurement of apolipoprotein concentrations that are at least 10 times lower than normally detectable; 0.2 micrograms of apolipoprotein A-IV, 0.2 micrograms of apolipoprotein A-I, and 0.8 micrograms of apolipoprotein E can be easily detected in samples of 2 ml.http://www.sciencedirect.com/science/article/pii/S0022227520343200
spellingShingle G M Dallinga-Thie
P H Groot
A van Tol
Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
Journal of Lipid Research
title Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
title_full Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
title_fullStr Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
title_full_unstemmed Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
title_short Electroimmunoassay of rat apolipoproteins A-I, A-IV, and E. A procedure for sample treatment to increase the sensitivity in diluted fractions.
title_sort electroimmunoassay of rat apolipoproteins a i a iv and e a procedure for sample treatment to increase the sensitivity in diluted fractions
url http://www.sciencedirect.com/science/article/pii/S0022227520343200
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AT avantol electroimmunoassayofratapolipoproteinsaiaivandeaprocedureforsampletreatmenttoincreasethesensitivityindilutedfractions