A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.

A rapid and inexpensive micro-assay for determining cholesterol in plasma and isolated lipoprotein fractions has been established which utilizes a commercially available enzymatic reagent with semi-automated instruments and microtiter plates. The assay is sensitive, precise, and easy to perform. The...

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Main Authors: BJ Auerbach, JS Parks, D Applebaum-Bowden
Format: Article
Language:English
Published: Elsevier 1990-04-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520428445
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author BJ Auerbach
JS Parks
D Applebaum-Bowden
author_facet BJ Auerbach
JS Parks
D Applebaum-Bowden
author_sort BJ Auerbach
collection DOAJ
description A rapid and inexpensive micro-assay for determining cholesterol in plasma and isolated lipoprotein fractions has been established which utilizes a commercially available enzymatic reagent with semi-automated instruments and microtiter plates. The assay is sensitive, precise, and easy to perform. The color development is linear from 0.4 to 20 micrograms cholesterol/well, with sample volumes of 2 to 100 microliters. Inter- and intra-assay variability yielded coefficients of variation (CV) of 2.75% (n = 51) and 1.09% (n = 32), respectively. The concentrations of total plasma and lipoprotein cholesterol (d greater than 1.006 g/ml) obtained with this method were compared with those analyzed in a lipid laboratory standardized to the Centers for Disease Control. The correlation coefficients between the two methods were 0.976 and 0.964, respectively. For total high density lipoprotein (HDL) and the HDL3 subfraction, inter-assay variability was 4.12% and 6.33% (n = 27), respectively; the intra-assay variability was 2.79% and 4.19% (n = 12).
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spelling doaj.art-6e3aa172a764443aae408fe5e1be307b2022-12-21T22:48:16ZengElsevierJournal of Lipid Research0022-22751990-04-01314738742A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.BJ Auerbach0JS Parks1D Applebaum-Bowden2Department of Medicine, Bowman Gray School of Medicine, Winston-Salem, NC 27103.Department of Medicine, Bowman Gray School of Medicine, Winston-Salem, NC 27103.Department of Medicine, Bowman Gray School of Medicine, Winston-Salem, NC 27103.A rapid and inexpensive micro-assay for determining cholesterol in plasma and isolated lipoprotein fractions has been established which utilizes a commercially available enzymatic reagent with semi-automated instruments and microtiter plates. The assay is sensitive, precise, and easy to perform. The color development is linear from 0.4 to 20 micrograms cholesterol/well, with sample volumes of 2 to 100 microliters. Inter- and intra-assay variability yielded coefficients of variation (CV) of 2.75% (n = 51) and 1.09% (n = 32), respectively. The concentrations of total plasma and lipoprotein cholesterol (d greater than 1.006 g/ml) obtained with this method were compared with those analyzed in a lipid laboratory standardized to the Centers for Disease Control. The correlation coefficients between the two methods were 0.976 and 0.964, respectively. For total high density lipoprotein (HDL) and the HDL3 subfraction, inter-assay variability was 4.12% and 6.33% (n = 27), respectively; the intra-assay variability was 2.79% and 4.19% (n = 12).http://www.sciencedirect.com/science/article/pii/S0022227520428445
spellingShingle BJ Auerbach
JS Parks
D Applebaum-Bowden
A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
Journal of Lipid Research
title A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
title_full A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
title_fullStr A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
title_full_unstemmed A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
title_short A rapid and sensitive micro-assay for the enzymatic determination of plasma and lipoprotein cholesterol.
title_sort rapid and sensitive micro assay for the enzymatic determination of plasma and lipoprotein cholesterol
url http://www.sciencedirect.com/science/article/pii/S0022227520428445
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