Table 5.
Effect of blood drawing conditions on relative sphingolipid levels in human blood samples.
| Blood vessel | RR + 10 mmHg | |||
|---|---|---|---|---|
| Vein | Artery | 1 min | 6 min | |
| C16Cer | 100 ± 10.2 | 106 ± 23.2 | 100 ± 20.1 | 93.4 ± 20.8 |
| C18Cer | 100 ± 10.4 | 108 ± 21.3 | 100 ± 25.6 | 93.5 ± 30.1 |
| C20Cer | 100 ± 7.56 | 116 ± 4.92 | 100 ± 41.2 | 96.4 ± 35.6 |
| C24Cer | 100 ± 10.5 | 76.1 ± 10.0 | 100 ± 30.4 | 95.9 ± 22.7 |
| C24:1Cer | 100 ± 11.0 | 109 ± 11.0 | 100 ± 20.6 | 93.2 ± 22.4 * |
| C24dhCer | 100 ± 32.3 | 124 ± 27.0 | 100 ± 35.5 | 94.9 ± 32.2 |
| C24:1dhCer | 100 ± 20.7 | 89.7 ± 13.6 | 100 ± 27.0 | 95.0 ± 22.1 |
Mean (in %) ± SD; Blood vessel: Heparin, n = 3 (C20Cer: n = 2); RR + 10 mmHg: EDTA, n = 4; Paired t test; * p < 0.05.