Radioimmunoassay of Human Apolipoprotein CII

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Radioimmunoassay of human apolipoprotein CII. A study in normal and hypertriglyceridemic subjects.

A specific, precise, and sensitive double-antibody radioimmunoassay for the measurement of human apolipoprotein CII (apoCII) was developed. ApoCII was labeled with (125)I (chloramine-T) and monospecific antibody was raised in rabbits. No appreciable cross-reactivity with apolipoproteins CI, CIII, AI, AII, low density lipoproteins, and lipoprotein-free plasma was observed. Lipoproteins containin...

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This report describes the development and first applications of a sensitive and specific double antibody radioimmunoassay for human apoplipoprotein E (apoE). ApoE was purified from the very low density lipoproteins of hypertriglyceridemic patients by heparin-agarose affinity chromatography, DEAE-cellulose chromatography, and preparative polyacrylamide gel electrophoresis. The purified apoprotei...

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Demonstration of Apolipoprotein CII in Guinea Pigs

In contrast to plasma from other mammals, guinea pig plasma does not stimulate the activity of lipoprotein lipases in vitro. This has led previously to the conclusion that guinea pigs lack an analogue to apolipoprotein CII (apoCII). By adsorption of lipid-binding proteins to lipid droplets, thereby separating them from other plasma components, we could demonstrate apoCII-like activity in guine...

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Radioimmunoassay of apolipoprotein a-ii.

A double antibody radioimmunoassay was developed for apolipoprotein A-II (apo A-II), one of the two major apoproteins of human high density lipoproteins (HDL). Apo A-II contains two identical polypeptide chains linked by a disulfide bond. A specific antiserum was raised in sheep. Tracer apo A-II was radiolabeled with 125I by the Bolton-Hunter technique. Reduction and carboxymethylation of apo A...

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Presence of apolipoprotein-CII in commercially available albumin fractions.

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ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 1977

ISSN: 0021-9738

DOI: 10.1172/jci108753