John Jeffrey Carr
Professor of Radiology, Biomedical Informatics and Cardiovascular Medicine
Last active: 1/10/2020

Plasma apoM and S1P levels are inversely associated with mortality in African Americans with type 2 diabetes mellitus.

Liu M, Frej C, Langefeld CD, Divers J, Bowden DW, Carr JJ, Gebre AK, Xu J, Larsson B, Dahlbäck B, Freedman BI, Parks JS
J Lipid Res. 2019 60 (8): 1425-1431

PMID: 31133557 · PMCID: PMC6672033 · DOI:10.1194/jlr.P089409

apoM is a minor HDL apolipoprotein and carrier for sphingosine-1-phosphate (S1P). HDL apoM and S1P concentrations are inversely associated with atherosclerosis progression in rodents. We evaluated associations between plasma concentrations of S1P, plasma concentrations of apoM, and HDL apoM levels with prevalent subclinical atherosclerosis and mortality in the African American-Diabetes Heart Study participants (N = 545). Associations between plasma S1P, plasma apoM, and HDL apoM with subclinical atherosclerosis and mortality were assessed using multivariate parametric, nonparametric, and Cox proportional hazards models. At baseline, participants' median (25th percentile, 75th percentile) age was 55 (49, 62) years old and their coronary artery calcium (CAC) mass score was 26.5 (0.0, 346.5). Plasma S1P, plasma apoM, and HDL apoM were not associated with CAC. After 64 (57.6, 70.3) months of follow-up, 81 deaths were recorded. Higher concentrations of plasma S1P [odds ratio (OR) = 0.14, = 0.01] and plasma apoM (OR = 0.10, = 0.02), but not HDL apoM ( = 0.89), were associated with lower mortality after adjusting for age, sex, statin use, CAC, kidney function, and albuminuria. We conclude that plasma S1P and apoM concentrations are inversely and independently associated with mortality, but not CAC, in African Americans with type 2 diabetes after accounting for conventional risk factors.

Copyright © 2019 Liu et al.

MeSH Terms (12)

African Americans Apolipoproteins M Biomarkers Diabetes Mellitus, Type 2 Disease-Free Survival Female Humans Lysophospholipids Male Middle Aged Sphingosine Survival Rate

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