Abstract
Soluble P-selectin (CD62P) may arise from platelets, the endothelium, or both, and raised levels are found in those with thrombotic disease and atherosclerosis. To determine whether these increased levels in atherosclerosis are related to hypercholesterolaemia, blood samples were obtained from 86 patients (43 with symptomatic vascular disease) attending a hypercholesterolaemia clinic, and 86 age- and sex-matched controls. Parallel measurement of endothelial cell product von Willebrand factor helped define the origin of sP-selectin. Using ELISAs, soluble P-selectin was higher (median 290 ng/ml, range 80-735, P < 0.05) in patients with vascular disease than in both patients with uncomplicated hypercholesterolaemia (median 210 ng/ml, range 55-550), and controls (median 190 ng/ml, range 48-500). Von Willebrand factor was raised in both patients with uncomplicated hypercholesterolaemia (115 +/- 26 IU/dl, P < 0.05) and patients with hypercholesterolaemia and vascular disease (129 +/- 32 IU/dl, P < 0.02) compared with controls (102 +/- 30 IU/dl). Levels of soluble P-selectin did not correlate with von Willebrand factor, total low-density-lipoprotein (LDL) or high-density-lipoprotein (HDL) cholesterol or triglycerides levels, blood pre...Continue Reading
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