MS16 RELATIONSHIPS BETWEEN LDL-C, ApoB AND NON-HDL-C WITH hsCRP IN HYPERCHOLESTEROLEMIC PATIENTS AT RISK FOR CARDIOVASCULAR DISEASE
ATHEROSCLEROSIS SUPPLEMENTS(2010)
Abstract
Clinical observations strongly support an association of circulating levels of secretory phospholipases A2 (sPLA2) in atherosclerotic cardiovascular disease (ACVD). Two modes of action can provide causal support for these statistical correlations. One is the action of the enzymes on circulating lipoproteins and the other is direct action on the lipoproteins once in the arterial extracellular intima. In this review we discuss results suggesting a distinct profile of characteristics related to localization, action on plasma lipoproteins and interaction with arterial proteoglycans for sPLA2-IIA and sPLA2-V. The differences observed indicate that these enzymes may contribute to atherosclerosis through dissimilar pathways. Furthermore, we comment on recent animal studies from our laboratory indicating that the expression of type V enzyme is up-regulated by genetically and nutritionally-induced dyslipidemias but not the group type IIA enzyme, which is well known to be up-regulated by acute inflammation. The results suggest that if similar up-regulation occurs in humans in response to hyperlipidemia, it may create a distinctive link between the group V enzyme and the disease.
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Key words
hypercholesterolemic,hscrp,cardiovascular disease,non-hdl-c
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