Abstract
The relationship between lipids, lipoproteins, total homocysteine, and lipoprotein (a) was studied in hypercholesterolemic and normocholesterolemic children. In hypercholesterolemic children, concentrations of total cholesterol, low-density lipoprotein (LDL) cholesterol, apolipoprotein B, and triglycerides were significantly higher compared to levels in controls, whereas concentrations of high-density lipoprotein (HDL) cholesterol and apolipoprotein A-I were lower compared to those in the control group. Total serum homocysteine concentrations in children with a positive family history for cardiovascular disease CHD (+) (7.28 pmol/L) were significantly higher than those in the control group (5.45 pmol/L), and in the group of CHD(-) children (5.25 pmol/L). The median value of lipoprotein (a) in patients was 31.5 mg/dL (range, 11-209 mg/dL) and in the control group, 19 mg/dL (range, 11-95 mg/dL). Concentrations of Lp (a), exceeding 30 mg/dL, were present in 45% of CHD (+) children, in 29% of CHD (-) children, and in only 11% of the control group.
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