Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
Cerne, D; Jürgens, G; Ledinski, G; Kager, G; Greilberger, J; Lukac-Bajalo, J.
Relationship between the sialic acid content of low-density lipoprotein (LDL) and autoantibodies to oxidized LDL in the plasma of healthy subjects and patients with atherosclerosis.
Clin Chem Lab Med. 2002; 40(1):15-20
Doi: 10.1515/CCLM.2002.004
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- Co-Autor*innen der Med Uni Graz
- Greilberger Joachim
- Jürgens Günther
- Kager Gerd
- Ledinski Gerhard
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- Abstract:
- To determine whether the sialic acid (SA) content of the low-density lipoprotein (LDL) is related to the plasma concentration of autoantibodies to oxidized LDL (oxLDL), we measured the SA content of LDL and the concentrations of oxLDL and autoantibodies to oxLDL in plasma of 20 apparently healthy subjects and 20 patients with advanced coronary atherosclerosis. In the healthy subjects the SA content of LDL correlated positively with plasma concentration of autoantibodies to oxLDL. In agreement with the literature the decreased SA content of LDL was associated with an increased fraction of oxLDL; a decreased fraction of oxLDL was associated with an increased plasma concentration of autoantibodies to oxLDL. In the patients the SA content of LDL and plasma concentrations of oxLDL and autoantibodies to oxLDL were not related. We conclude that the SA content of LDL correlates positively with plasma concentration of autoantibodies to oxLDL in healthy subjects. However, this association may vary depending on the stage of atherogenesis. Although our results suggest dependence of LDL SA content on the clearance of oxidatively modified (desialylated and oxidized) LDL from blood by autoantibodies to oxLDL, the mechanisms regulating the SA content of LDL await further studies.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Arteriosclerosis - blood
- Autoantibodies - immunology
- Female -
- Humans -
- Lipoproteins, LDL - blood
- Male -
- Middle Aged -
- N-Acetylneuraminic Acid - analysis
- Find related publications in this database (Keywords)
- low-density lipoprotein (LDL)
- sialic acid
- oxidized LDL
- autoantibodies to oxidized LDL