Nicotinic Acid and Lipoprotein (a): The Effect of Extended Release Nicotinic Acid on Plasma Lipoprotein (a), its Isoforms and apo(a) Fragments
Effect Of Extended Release Nicotinic Acid On Plasma Lipoprotein (a), Its Isoforms And Apo(a) Fragments.
A/Prof. K.Kostner
30 participants
Apr 1, 2011
Interventional
Conditions
Summary
Lipoprotein(a) [Lp(a)] is one of the most atherogenic lipoproteins and consists of a glycoprotein called apo(a) which is covalently linked to an LDL particle. Lp(a) is mostly synthesized in the liver and metabolized both via the kidney and liver. A size polymorphism of apo(a) (high and low molecular weight isoforms) exists that negatively correlates with plasma Lp(a) levels. We could previously show that fragments of apo(a) are secreted into the urine and the daily secretion rate correlates with plasma Lp(a) concentrations. Nicotinic acid (NA) and extended release nicotinic acid (ERN) are currently the only lipid lowering drugs that consistently reduce plasma Lp(a) by up to 30%. Since the mechanism by which ERN lowers Lp(a) is not entirely clear we aim to investigate this mechanism in vivo and in vitro.
Eligibility
Plain Language Summary
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Interventions
Extended release niacin dose: 2g once daily duration of administration: 8 weeks mode of administration: oral capsule
Locations(1)
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ACTRN12611000252910