期刊
ATHEROSCLEROSIS
卷 330, 期 -, 页码 8-13出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.atherosclerosis.2021.06.915
关键词
Diabetes; SGLT2 inhibitors; Empagliflozin; LDL cholesterol; Lipoprotein subfractions; LDL particle size
Empagliflozin treatment of T2D patients increased levels of LDL-C and LDL apolipoprotein B, but had no effect on calculated LDL particle size.
Background and aims: Sodium-glucose cotransporter-2 inhibitors, glucose-lowering drugs that increase urinary glucose excretion, have been shown to reduce CV events in patients with type 2 diabetes (T2D), despite the fact that these agents increase blood levels of the proatherogenic low density lipoprotein cholesterol (LDL-C). It has been hypothesized that hemoconcentration due to osmotic diuresis, effects on calculated LDL particle size, or a modulation of lipoprotein subfractions may play a role in this context but to date the underlying mechanisms remain largely unexplored. Therefore, the present study examined effects of empagliflozin on LDL-C and lipoprotein subfractions including calculated LDL particle size and composition. Methods: In this placebo-controlled, randomized, double blind study, patients with T2D were randomized to empagliflozin 10 mg (n = 20) or placebo (n = 22). Composition of lipoprotein subfractions was assessed before and after 3 months of treatment. Lipoproteins were separated using a combined ultracentrifugation-precipitation method (beta-quantification). Results: Empagliflozin increased LDL-C after 3 months of treatment (from baseline: 103 +/- 36 mg/dL to 112 +/- 47 mg/dL; p < 0.001) while no difference was recorded after day 1 or day 3 of treatment. The increase of LDL-C was paralleled by an increase of total cholesterol (baseline: 169 +/- 41 mg/dL, 3 months: 185 +/- 48 mg/dL; p = 0.001). Analyses of lipoprotein subfractions revealed LDL phospholipids and LDL apolipoprotein B to be increased by empagliflozin after 3 months of treatment while calculated LDL particle size was not affected. In addition empagliflozin increased free fatty acid concentrations. Conclusions: Empagliflozin treatment of patients with T2D increased LDL-C and LDL apolipoprotein B levels but had no effect on calculated LDL particle size.
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