期刊
DIABETES & VASCULAR DISEASE RESEARCH
卷 7, 期 4, 页码 289-295出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1479164110383063
关键词
Glycaemic control; glycation; metabolic syndrome; small-dense LDL; statin; type 2 diabetes
资金
- British Heart Foundation
- Manchester Academic Health Sciences Centre (MAHSC)
- National Institute for Health Research [CL-2008-06-001] Funding Source: researchfish
Small-dense LDL (SD-LDL) has been particularly implicated in atherosclerosis It has previously been reported that in non-diabetic people SD-LDL is preferentially glycated The distribution of glycated apolipoprotein B (glyc-apoB) in lipoproteins in metabolic syndrome (MS) and in type 2 diabetes has not previously been studied Plasma apoB and glyc-apoB were determined in different apoB-containing lipoproteins including buoyant and SD-LDL in MS (n=18) and type 2 diabetes (DM) [n=48, 12 statin-untreated (DM S) and 36 statin-treated (DM+S)] Plasma glyc-apoB was 5 6 0 9, 3 5 0 5 and 4 0 0 2 mg/dl in DM S, DM+S and MS, respectively The glycated proportion of SD-LDL-apoB was greater than buoyant LDL in all groups SD-LDL contributed most to plasma glyc-apoB in DM S, because SD-LDL-apoB was higher in DM S than in MS and DM+S (p < 0 001) Plasma glyc-apoB correlated with SD-LDL-apoB (r=0 74, p < 0 0001 in diabetes and r=0 53, p < 0 001 in MS), but not with HbA(1c) SD-LDL is preferentially glycated in type 2 diabetes and MS Its concentration is a stronger determinant of plasma glyc-apoB than glycaemia Statin-induced changes in its level may be important in decreasing apoB glycation in diabetes These findings may explain the small effect of improving glycaemia relative to statin treatment in reducing atherosclerosis risk in type 2 diabetes and the increased risk in MS even before the onset of type 2 diabetes
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