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Apolipoprotein B-48: comparison of fasting concentrations measured in normolipidaemic individuals using SDS-PAGE, immunoblotting and ELISA

Jackson, K.G. and Williams, C.A. (2004) Apolipoprotein B-48: comparison of fasting concentrations measured in normolipidaemic individuals using SDS-PAGE, immunoblotting and ELISA. Atherosclerosis, 176 (2). pp. 207-217. ISSN 0021-9150

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To link to this item DOI: 10.1016/j.atherosclerosis.2004.02.003

Abstract/Summary

Raised levels of chylomicrons and chylomicron remnants, which circulate following a meal, have been implicated in the development of atherosclerosis. Apolipoprotein (apo) B-48 is exclusively associated with chylomicron particles and provides a specific direct measurement of the number of intestinally derived lipoproteins in the circulation. The quantification of apo B-48 in biological samples is difficult due to the very low concentration in plasma, structural similarity to the N-terminal 48% of apo B-100 and lack of an appropriate standard for apo B-48. Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), followed by coomassie blue staining, has been used for many years to measure apo B-48 levels in triacylglycerol (TAG)-rich lipoprotein samples. The raising of antiserum to apo B-48 has led to development of more sensitive and specific methods including immunoblotting and enzyme-linked immunosorbant assays (ELISAs). This has enabled direct measurement of apo B-48 in plasma without the need for separation into TAG-rich lipoproteins. A high degree of variability was observed in the apo B-48 concentrations reported in the literature both within and between the SDS-PAGE, immunoblotting and ELISA methods. (C) 2004 Elsevier Ireland Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
Interdisciplinary centres and themes > Institute for Cardiovascular and Metabolic Research (ICMR)
ID Code:13283
Uncontrolled Keywords:chylomicrons, chylomicron remnants, coomassie blue staining, triacylglycerol-rich lipoproteins, TRIGLYCERIDE-RICH LIPOPROTEINS, INTESTINALLY-DERIVED LIPOPROTEINS, CHYLOMICRON REMNANT METABOLISM, POSTMENOPAUSAL WOMEN, FATTY-ACIDS, B-100-CONTAINING LIPOPROTEINS, POSTPRANDIAL LIPIDEMIA, ALIMENTARY, LIPEMIA, RETINYL PALMITATE, APO-B-48 LEVELS

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