Table 1. MS analyses of EV-HDL and EL-HDL lipids.
AU/mg HDL protein | EV-HDL | EL-HDL | p-value |
---|---|---|---|
PC | 461.7 ± 19.39 | 172.1 ± 5.73 | 0.0001 |
PE | 18.01 ± 0.35 | 3.53 ± 0.22 | < 0.0001 |
PI | 156.0 ± 6.25 | 4.01 ± 0.13 | < 0.0001 |
TAG | 51.67 ± 1.79 | 19.52 ± 1.91 | 0.0003 |
DAG | 45.74 ± 1.52 | 11.88 ± 0.42 | < 0.0001 |
LPC | 41.37 ± 0.68 | 108.2 ± 3.80 | < 0.0001 |
LPE | 0.16 ± 0.004 | 0.19 ± 0.003 | 0.0033 |
FA | 223.3 ± 6.78 | 1834 ± 222.1 | 0.0019 |
FC | 0.95 ± 0.05 | 1.32 ± 0.05 | 0.0067 |
CE | 1036 ± 16.06 | 1051 ± 102.0 | 0.8936 |
Cer | 4.065 ± 0.10 | 5.229 ± 0.14 | 0.0025 |
SM | 67.89 ± 2.24 | 75.17 ± 4.58 | 0.2265 |
Lipids from EV-HDL and EL-HDL (300 μg protein) purified by ultracentrifugation followed by FPLC were extracted and analyzed by MS. Results are mean ± SEM of 3 independent modifications of human HDL. The differences between EV-HDL and EL-HDL were analyzed by two-tailed unpaired t-test between EV- and EL-HDL. P-values of < 0.004 are considered significant after a Bonferroni correction for multiple testing. PC, phosphatidylcholine; PE, phosphatidylethanolamine; PI, phosphatidylinositol; TAG, triacylglycerol; DAG, diacylglycerol; LPC, lysophosphatidylcholine, LPE, lysophosphatidylethanolamine, FC, free cholesterol, CE, cholesteryl ester; Cer, Ceramide; SM, Sphingomyelin; MS, mass spectrometry; SEM, standard error of mean;