Table 2.
Time-dependent effect on relative sphingolipid levels in human blood samples.
| +22 °C | |||||
|---|---|---|---|---|---|
| 0 h | 2 h | 4 h | 6 h | 8 h | |
| EDTA | |||||
| C16Cer | 100 ± 68.4 | 66.9 ± 35.4 | 96.3 ± 76.4 | 58.8 ± 12.0 | 65.7 ± 21.9 |
| C18Cer | 100 ± 32.0 | 86.1 ± 62.5 | 98.8 ± 44.1 | 69.8 ± 29.3 | 88.5 ± 42.7 |
| C20Cer | 100 ± 17.9 | 89.6 ± 33.8 | 105 ± 56.2 | 96.3 ± 54.9 | 98.7 ± 52.0 |
| C24Cer | 100 ± 17.9 | 92.9 ± 26.0 | 92.7 ± 27.0 | 92.0 ± 23.5 | 92.7 ± 24.3 |
| C24:1Cer | 100 ± 11.4 | 95.8 ± 35.3 | 98.7 ± 12.1 | 100 ± 34.1 | 99.1 ± 37.1 |
| C24dhCer | 100 ± 20.6 | 91.6 ± 20.2 | 103 ± 18.7 | 89.2 ± 16.0 | 101 ± 14.6 |
| C24:1dhCer | 100 ± 22.6 | 104 ± 26.4 | 103 ± 27.8 | 112 ± 43.0 | 108 ± 34.7 |
| Serum | |||||
| C16Cer | 100 ± 62.5 | 80.9 ± 45.8 | 62.9 ± 27.8 | 55.8 ± 30.2 | 102 ± 84.0 |
| C18Cer | 100 ± 111 | 82.3 ± 74.4 | 55.5 ± 25.0 | 42.3 ± 12.5 | 65.9 ± 17.0 |
| C20Cer | 100 ± 19.6 | 101 ± 79.6 | 85.7 ± 34.2 | 82.1 ± 18.0 | 105 ± 50.4 |
| C24Cer | 100 ± 24.6 | 113 ± 21.9 | 105 ± 25.4 | 99.6 ± 30.3 | 106 ± 23.6 |
| C24:1Cer | 100 ± 19.3 | 104 ± 28.3 | 88.8 ± 34.1 | 82.0 ± 30.1 | 110 ± 41.5 |
| C24dhCer | 100 ± 27.7 | 102 ± 28.8 | 102 ± 29.6 | 103 ± 47.7 | 101 ± 32.2 |
| C24:1dhCer | 100 ± 16.7 | 112 ± 22.0 | 97.9 ± 29.4 | 94.3 ± 31.0 | 117 ± 40.4 |
Mean (in %) ± SD; n = 4; Repeated ANOVA (Bonferroni post test).