Table 4.
Lipid categories and number of lipid species that scanned and quantified using targeted mass spectrometry
| Lipids (category) | Scan mode | Scanned lipid species | Quantified lipid species | Significantly changed lipid species |
|---|---|---|---|---|
| Glycerophospholipids | ||||
| PC | Negative | 79 | 4 | 2 |
| PE | Negative | 142 | 32 | 5 |
| PG | Negative | 78 | 28 | 8 |
| PI | Negative | 77 | 10 | 2 |
| PS | Negative | 78 | 4 | — |
| LPC | Negative | 16 | 8 | — |
| LPE | Negative | 16 | 9 | 8 |
| LPG | Negative | 16 | — | — |
| LPI | Negative | 16 | — | — |
| LPS | Negative | 16 | — | — |
| Sphingolipids | ||||
| SM | Positive | 12 | 12 | 2 |
| CER | Positive | 12 | 12 | 2 |
| DCER | Positive | 12 | 12 | 3 |
| HCER | Positive | 12 | 7 | — |
| LCER | Positive | 12 | — | |
| Glycerolipids | ||||
| TAG | Positive | 445 | 342 | 13 |
| DAG | Positive | 50 | 17 | 6 |
| MAG | Positive | 17 | 3 | — |
| Sterols | ||||
| CE | Positive | 21 | 21 | 13 |
| Total | 1127 | 521 | 64 | |
Abbreviations: CE, cholesterol ester; CER, ceramide; DAG, diacylglycerol; DCER, dihydroceramide; HCER, hexosylceramide; LCER, lactosylceramide; LPC, lysophosphatidylcholine; LPE, lysophosphatidylethanolamine; LPG, lysophosphatidylglycerol; LPI, lysophosphatidylinositol; LPS, lysophosphatidylserine; MAG, monoacylglycerol; PC, phosphatidylcholine; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PI, phosphatidylinositol; PS, phosphatidylserine; SM, sphingomyelin; TAG, triacylglycerol.