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MB Sample ID: SA154564
| Local Sample ID: | KD-D3 |
| Subject ID: | SU001756 |
| Subject Type: | Cultured cells |
| Subject Species: | Homo sapiens |
| Taxonomy ID: | 9606 |
| Gender: | Not applicable |
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Sample Preparation:
| Sampleprep ID: | SP001762 |
| Sampleprep Summary: | The frozen cell preps were defrosted on ice. The samples were extracted using a modified Folch method[1]. 1. Sen, P. et al. Persistent Alterations in Plasma Lipid Profiles Before Introduction of Gluten in the Diet Associated With Progression to Celiac Disease. Clin Transl Gastroenterol 10, 1-10, doi:10.14309/ctg.0000000000000044 (2019). Briefly, 120 µL of cold (4 °C) extraction solvent (CHCl3: MeOH, (2:1 v/v) was added to the samples. The extraction solvent containing the following internal standards: C17 Lactosyl(beta) ceramide (D18:1/17:0, 20 ppb), C17 Glucosyl(beta) ceramide (D18:1/17:0, 20 ppb), C17 ceramide (D18:1/17:0, 20 ppb), C16 ceramide-d7 (d18:1-d7/16:0, 16,57 ppb), C18 ceramide-d7 (d18:1-d7/18:0, 8.75 ppb), C24 ceramide-d7 (d18:1-d7/24:0, 20 ppb), and C24:1 ceramide-d7 (d18:1-d7/24:1(15Z), 9,96 ppb). The samples were the vortexed briefly and left on ice for 30 minutes. The samples were then centrifuged (9400g, 5 min, 4 °C) and then 60 µL of the bottom layer was transfer to a clean mass spectrometry vial (2 mL). The samples were then stored at –80 °C. The samples for this experiments were the same extracts that the Cer data was acquired from and had SM(18:1/17:0) spiked in prior to acquisition. |
| Processing Storage Conditions: | -80℃ |
| Extract Storage: | -80℃ |
