About this item:

497 Views | 0 Downloads

Author Notes:

Individual reprints of this article are not available. Address correspondence to Terry A. Jacobson, MD, Director, Office of Health Promotion and Disease Prevention, Department of Medicine, Emory University, Faculty Office Bldg, 49 Jesse Hill Jr Dr SE, Atlanta, GA 30303 (tjaco02@emory.edu).

Subject:

Research Funding:

Research support was provided by Abbott Laboratories (Abbott Park, IL).

Opening a New Lipid “Apo-thecary”: Incorporating Apolipoproteins as Potential Risk Factors and Treatment Targets to Reduce Cardiovascular Risk

Tools:

Journal Title:

Mayo Clinic Proceedings

Volume:

Volume 86, Number 8

Publisher:

, Pages 762-780

Type of Work:

Article | Post-print: After Peer Review

Abstract:

Statins (3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors) represent the cornerstone of drug therapy to reduce low-density lipoprotein (LDL) cholesterol and cardiovascular risk. However, even optimal statin management of LDL cholesterol leaves many patients with residual cardiovascular risk, in part because statins are more effective in reducing LDL cholesterol than apolipoprotein B (Apo B). Apo B may be a better marker of atherogenic risk than LDL cholesterol because Apo B measures the total number of all atherogenic particles (total atherosclerotic burden), including LDL, very low-density lipoprotein, intermediate-density lipoprotein, remnant lipoproteins, and lipoprotein(a). To determine whether Apo B is a better indicator of baseline cardiovascular risk and residual risk after lipid therapy compared with LDL cholesterol, a MEDLINE search of the literature published in English from January 1, 1975, through December 1, 2010, was conducted. On the basis of data from most population studies, elevated Apo B was more strongly associated with incident coronary heart disease than similarly elevated LDL cholesterol. Apo B was also a superior benchmark (vs LDL cholesterol) of statins' cardioprotective efficacy in both primary-prevention and secondary-prevention trials. To minimize cardiovascular risk among persons with hypercholesterolemia or dyslipidemia, the best available evidence suggests that intensive therapy with statins should be initiated to achieve the lowest possible Apo B level (with adequate drug toleration) and then other therapies (eg, niacin, bile acid resins, ezetimibe) added to potentiate these Apo B–lowering effects. In future consensus lipid-lowering treatment guidelines, Apo B should be considered as an index of residual risk, a potential parameter of treatment efficacy, and a treatment target to minimize risk of coronary heart disease.

Copyright information:

© 2011 Mayo Foundation for Medical Education and Research

Export to EndNote