Abstract:
AIM:Recent evidence suggests that small dense low-density lipoprotein (sd-LDL) particles are more atherogenic than large-LDL in spite of their lower cholesterol content. This study aimed to determine whether sd-LDL-cholesterol (sd-LDL-C) is superior to LDL-C as a biomarker of coronary heart disease (CHD). METHODS:LDL particle size determined by gradient gel electrophoresis and sd-LDL-C concentrations quantified by heparin-magnesium precipitation were compared between 482 stable CHD patients and 389 non-diabetic subjects without CHD who were not receiving any lipid-lowering drugs. RESULTS:Both male and female CHD patients had significantly smaller LDL particles and lower large-LDL-C concentrations (estimated by subtracting the sd-LDL-C concentration from the LDL-C concentration), and significantly higher sd-LDL-C concentrations than the control subjects. LDL-C concentrations were modestly higher and sd-LDL-C concentrations were significantly higher in 258 patients with angiographically documented severe CHD than in the patients with mild CHD irrespective of treatment by LDL-lowering drugs and history of myocardial infarction and/or coronary revascularization. Large-LDL-C concentrations, in contrast, were similar between the two groups. Multivariate logistic regression analysis revealed that sd-LDL-C levels were significantly associated with severe CHD independently of LDL-C. CONCLUSION:sd-LDL-C levels are more powerful than LDL-C levels for the determination of severe stable CHD.
journal_name
J Atheroscler Thrombjournal_title
Journal of atherosclerosis and thrombosisauthors
Koba S,Yokota Y,Hirano T,Ito Y,Ban Y,Tsunoda F,Sato T,Shoji M,Suzuki H,Geshi E,Kobayashi Y,Katagiri Tdoi
10.5551/jat.e572subject
Has Abstractpub_date
2008-10-01 00:00:00pages
250-60issue
5eissn
1340-3478issn
1880-3873pii
JST.JSTAGE/jat/E572journal_volume
15pub_type
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