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  • Title: Increased levels of pregnancy-associated plasma protein-A in patients with hypercholesterolemia: the effect of atorvastatin treatment.
    Author: Stulc T, Malbohan I, Malík J, Fialová L, Soukupová J, Ceska R.
    Journal: Am Heart J; 2003 Dec; 146(6):E21. PubMed ID: 14661010.
    Abstract:
    BACKGROUND: Serum levels of pregnancy-associated plasma protein-A (PAPP-A) have recently been linked to plaque instability and are increased in acute coronary syndromes. The relation between PAPP-A levels and coronary risk factors, namely blood lipids, has not been studied to date. We have therefore investigated whether serum PAPP-A levels are increased in asymptomatic hypercholesterolemic subjects and whether PAPP-A levels are influenced by atorvastatin therapy. METHODS: We examined 27 subjects with isolated hypercholesterolemia free of manifest vascular disease and 29 age-matched healthy control subjects. Patients were examined at baseline and after 10 weeks of atorvastatin treatment (20 mg/d). RESULTS: In untreated hypercholesterolemic subjects, PAPP-A levels were significantly higher than in control subjects (8.02 +/- 1.86 mU/L vs 6.50 +/- 2.54 mU/L, P =.018). There was no correlation between PAPP-A levels and serum lipid levels. Atorvastatin treatment reduced total and LDL-cholesterol by 31% and 40%, respectively. Despite this profound lipid lowering, there was no significant change in the serum PAPP-A levels. CONCLUSIONS: PAPP-A levels are elevated in hypercholesterolemic subjects without clinical signs of atherosclerosis. PAPP-A may therefore not only reflect plaque instability but also serve as a marker of total atherosclerotic burden in asymptomatic subjects with hyperlipidemia. However, PAPP-A levels are not influenced by atorvastatin treatment.
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