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Cholesterol efflux capacity of large, small and total HDL particles is unaltered by atorvastatin in patients with type 2 diabetes.
- Source :
-
Atherosclerosis [Atherosclerosis] 2018 Oct; Vol. 277, pp. 72-79. Date of Electronic Publication: 2018 Aug 24. - Publication Year :
- 2018
-
Abstract
- Background and Aims: Research on the biologic activities of HDL, such as cholesterol efflux capacity and HDL composition, has allowed the understanding of the effect of interventions directed to improve cardiovascular risk. Previously, statin therapy has shown conflicting results about its effects on cholesterol efflux capacity of HDL; the underlying mechanisms are unclear but studies with positive effects are associated with an increase of HDL-cholesterol levels. We investigated if 10 weeks of atorvastatin therapy changes HDL efflux capacity and the chemical composition of its subpopulations.<br />Methods: In a before-after design basis, HDL-cholesterol levels, chemical composition and cholesterol efflux capacity from HDL subpopulations isolated by isophynic ultracentrifugation were assessed in plasma samples from 60 patients with type 2 diabetes mellito (T2DM) at baseline and after 10 weeks of treatment with 20 mg atorvastatin. Cholesterol efflux was measured from human THP-1 cells using large, light HDL2b and small, dense 3c subpopulations as well as total HDL as acceptors. Changes of cholesterol efflux and chemical composition of HDL after treatment were analyzed. Correlations among variables potentially involved in cholesterol efflux were evaluated.<br />Results: A significant decrease of 4% in HDL-cholesterol levels was observed from 47 (42-54) to 45 (39-56) mg/dL, p = 0.02. Cholesterol efflux from total-HDL and HDL2b and 3c subfractions was maintained unchanged after treatment. The total mass of HDL remained unaffected, except for the HDL3a subpopulation accounted for by a significant increase in total protein content. No significant correlations for variables previously known to be associated with cholesterol efflux were found in our study.<br />Conclusions: Short therapy of 10 weeks with 20 mg of atorvastatin does not modify the cholesterol efflux capacity neither the total mass of HDL2b, HDL3c and total HDL. The discrepancy with previous reports may be due to the selective effects among different classes of statins or differences in the approaches to measure cellular cholesterol efflux.<br /> (Copyright © 2018. Published by Elsevier B.V.)
- Subjects :
- Adult
Aged
Atorvastatin adverse effects
Biomarkers blood
Controlled Before-After Studies
Diabetes Mellitus, Type 2 blood
Diabetes Mellitus, Type 2 diagnosis
Dyslipidemias blood
Dyslipidemias diagnosis
Female
Humans
Hydroxymethylglutaryl-CoA Reductase Inhibitors adverse effects
Macrophages metabolism
Male
Mexico
Middle Aged
THP-1 Cells
Time Factors
Treatment Outcome
Young Adult
Atorvastatin therapeutic use
Cholesterol, HDL blood
Diabetes Mellitus, Type 2 drug therapy
Dyslipidemias drug therapy
Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1484
- Volume :
- 277
- Database :
- MEDLINE
- Journal :
- Atherosclerosis
- Publication Type :
- Academic Journal
- Accession number :
- 30176567
- Full Text :
- https://doi.org/10.1016/j.atherosclerosis.2018.08.027