HDL Containing Apolipoprotein C-III is Associated with Insulin Sensitivity: a Multi-Center Cohort Study.

Published on Apr 11, 2021in The Journal of Clinical Endocrinology and Metabolism5.399
· DOI :10.1210/CLINEM/DGAB234
Rain Yamamoto3
Estimated H-index: 3
(Harvard University),
Majken K. Jensen56
Estimated H-index: 56
(UCPH: University of Copenhagen)
+ 12 AuthorsFrank M. Sacks135
Estimated H-index: 135
(Harvard University)
CONTEXT HDL in humans is composed of a heterogeneous group of particles varying in protein composition as well as biological effects. OBJECTIVE We investigated the prospective associations between HDL subspecies containing and lacking apoC-III at baseline and insulin sensitivity at year 3. DESIGN, SETTING, AND PARTICIPANTS A prospective cohort study of 864 healthy volunteers drawn from the RISC study, a multi-center European clinical investigation, whose recruitment initiated in 2002 with a follow-up of 3 years. MAIN MEASURES Insulin sensitivity was estimated from an oral glucose tolerance test (OGTT) at baseline and year 3, and by euglycemic-hyperinsulinemic clamp at baseline only. The apolipoprotein concentrations were measured at baseline by a sandwich ELISA-based method. RESULTS The two HDL subspecies demonstrated significantly opposite associations with insulin sensitivity at year 3 (p-heterogeneity=0.004). The highest quintile of HDL containing apoC-III was associated with a 1.2% reduction in insulin sensitivity (p-trend=0.02), while the highest quintile of HDL lacking apoC-III was associated with a 1.3% increase (p-trend=0.01), compared to the lowest quintile. No significant association was observed for total HDL, and VLDL and LDL containing apoC-III. ApoC-III contained in HDL was associated with a decrease in insulin sensitivity even more strongly than plasma total apoC-III. CONCLUSION Both HDL containing apoC-III and apoC-III in HDL adversely affect the beneficial properties of HDL on insulin response to glucose. Our results support the potential of HDL-associated apoC-III as a promising target for diabetes prevention and treatment.
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