Interaction of isolated Lp(a) lipoprotein with calcium ions and glycosaminoglycans in vitro.

Abstract:

:The interaction between the lipoprotein carrying the Lp(a) antigen, i.e. the Lp(a) lipoprotein, and agarose gels substituted with glycosaminoglycans, as well as the precipitation of the Lp(a) lipoprotein by Ca++ were studied. Comparisons between Lp(a) lipoprotein and other serum lipoproteins were conducted. Very low density lipoprotein (VLDL) and low density lipoprotein (LDL) were bound to the tested glycosaminoglycans at low ionic strength of sodium chloride, but no binding was found with the Lp(a) lipoprotein. However, Ca++ as a divalent buffer cation gave a precipitating Ca++-Lp(a) lipoprotein complex even at a physiological Ca++ concentration. VLDL and LDL were not precipitated under these conditions. These findings may be of interest in relation to the previously reported higher frequency of the phenotype Lp(a+) in subjects with coronary heart disease.

journal_name

Clin Genet

journal_title

Clinical genetics

authors

Ericson C,Dahlén G,Berg K

doi

10.1111/j.1399-0004.1977.tb01341.x

subject

Has Abstract

pub_date

1977-06-01 00:00:00

pages

433-40

issue

6

eissn

0009-9163

issn

1399-0004

journal_volume

11

pub_type

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