Effect of Improving Glycemic Control in Patients With Type 2 Diabetes Mellitus on Low-Density Lipoprotein Size, Electronegative Low-Density Lipoprotein and Lipoprotein-Associated Phospholipase A2 Distribution

被引:34
作者
Sanchez-Quesada, Jose L. [1 ]
Vinagre, Irene [2 ]
de Juan-Franco, Elena [1 ]
Sanchez-Hernandez, Juan [3 ]
Blanco-Vaca, Francisco [1 ,3 ,4 ]
Ordonez-Llanos, Jordi [1 ,4 ]
Perez, Antonio [2 ,3 ]
机构
[1] Univ Autonoma Barcelona, Dept Biochem, Biomed Res Inst IIB, E-08193 Barcelona, Spain
[2] Univ Autonoma Barcelona, Endocrinol & Nutr Dept, Biomed Res Inst IIB, E-08193 Barcelona, Spain
[3] Univ Autonoma Barcelona, CIBER Diabet & Enfermedades Metab, E-08193 Barcelona, Spain
[4] Univ Autonoma Barcelona, Dept Biochem & Mol Biol, E-08193 Barcelona, Spain
关键词
ACTIVATING-FACTOR ACETYLHYDROLASE; OXIDIZED LDL; A(2); ATHEROSCLEROSIS; RISK;
D O I
10.1016/j.amjcard.2012.02.051
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The aim of this study was to determine the effect of intensified hypoglycemic therapy in patients with type 2 diabetes mellitus on the distribution of lipoprotein-associated phospholipase A2 (Lp-PLA2) activity between high-density lipoprotein and low-density lipoprotein (LDL) and its relation with the lipid profile and other qualitative properties of LDL. Forty-two patients with type 2 diabetes on the basis of poor glycemic control and normal or near normal LDL cholesterol were recruited. Lifestyle counseling and pharmacologic hypoglycemic therapy were intensified to improve glycemic control, but lipid-lowering therapy was unchanged. At 4 +/- 2 months, glycosylated hemoglobin had decreased by a mean of 2.1%, but the only effect on the lipid profile were statistically significant decreases in nonesterified fatty acids and apolipoprotein B concentration. LDL size increased and the proportion of electronegative LDL decreased significantly. In parallel, total Lp-PLA2 activity decreased significantly, promoting a redistribution of Lp-PLA2 activity toward a higher proportion in high-density lipoprotein. Improvements in glycemic control led to more marked changes in Lp-PLA2 activity and distribution in patients with diabetes who had not received previous lipid-lowering therapy. In conclusion, optimizing glycemic control in patients with type 2 diabetes promotes atheroprotective changes, including larger LDL size, decreased electronegative LDL, and a higher proportion of Lp-PLA2 activity in high-density lipoprotein. (C) 2012 Elsevier Inc. All rights reserved. (Am J Cardiol 2012;110:67-71)
引用
收藏
页码:67 / 71
页数:5
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