Table 1.
Number of individual lipids per class and class concentrations in plasma and erythrocytes.
| Plasma | Erythrocytes | |||
|---|---|---|---|---|
| Number of Lipid Species | Class Concentration (nmol/mL) | Number of Lipid Species | Class Concentration (nmol/mL) |
|
| Triacylglycerols | 482 | 1579.4 (1064.9–3195.2) | 134 | 6.5 (5.6–9.4) |
| Diacylglycerols | 9 | 13.3 (8.4–22.2) | 10 | 5.8 (4.7–6.2) |
| Free fatty acids | 20 | 745.3 (552.0–1202.9) | 20 | 486.9 (379.2–669.2) |
| Cholesteryl esters | 24 | 4571.6 (4065.1–5521.3) | 5 | 1.2 (0.9–1.7) |
| Phosphatidylcholines | 31 | 4013.7 (3203.1–4661.6) | 42 | 3899.2 (3723.0–4296.6) |
| Phosphatidylethanolamines | 26 | 156.2 (120.9–180.3) | 42 | 3954.6 (3721.9–4323.3) |
| Lysophosphatidylcholines | 9 | 385.9 (335.6–442.9) | 7 | 119.8 (109.7–168.9) |
| Lysophosphatidylethanolamines | 2 | 4.2 (3.5–4.9) | 4 | 8.6 (6.8–9.7) |
| Sphingomyelins | 12 | 1204.6 (1037.0–1351.9) | 8 | 2695.8 (2434.8–2815.6) |
| Ceramides | 6 | 14.1 (11.9–17.4) | 7 | 163.0 (133.3–186.4) |
| Dihydroceramides | 2 | 1.0 (0.8–1.3) | 1 | 1.8 (1.4–2.1) |
| Hexosylceramides | 5 | 5.1 (4.7–5.9) | 4 | 5.6 (5.0–7.4) |
| Lactosylceramides | 2 | 3.4 (2.7–3.8) | 2 | 23.8 (20.6–33.5) |
Numbers represent median (interquartile range) unless otherwise specified. Data represent baseline measurements.