Abstract
BackgroundRemnant lipoprotein (RLP), associated with atherosclerosis progression, is often elevated in diabetes mellitus. The RLP level is estimated by immune-separation method and agarose-gel electrophoresis (AGE). MethodsThe patients were grouped into three groups according to tertile of RLP-cholesterol (RLP-C) levels. The lipoprotein profiles of type II diabetic patients (T2DM) (n=194) were measured by an anion-exchange liquid chromatography (AEX-HPLC) and an AGE with lipid-staining or cholesterol-staining. ResultsIDL- and VLDL-cholesterol by the AEX-HPLC, and VLDL-levels by the AGE with lipid-staining and with cholesterol-staining were significantly different in the three groups. In all the subjects, IDL-cholesterol (r=0.531) and VLDL-cholesterol (r=0.880) by the AEX-HPLC method were strongly correlated with RLP-C, but only VLDL levels were correlated with RLP-C in AGE, respectively. ConclusionThese results suggest that the AEX-HPLC, which can provide cholesterol levels of not only VLDL but also IDL, is helpful for estimation of lipid profiles in T2DM with high RLP-C.
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