Table 1.
Lipid classes and subclasses in the ADNI serum lipidomics untargeted data set
| Class | Subclass | Count |
|---|---|---|
| Acylcarnitine (AC) | Acylcarnitine | 9 |
| Free fatty acid (FA) | Fatty acid | 29 |
| Sterol lipids | Cholesterol | 1 |
| Cholesteryl ester (CE) | 8 | |
| Phospholipid | Lysophosphatidylcholine (LPC) | 22 |
| Lysophosphatidylethanolamine (LPE) | 4 | |
| Phosphatidylcholine (PC) | 53 | |
| Phosphatidylethanolamine (PE) | 11 | |
| Phosphatidylinositol (PI) | 11 | |
| Plasmalogen phosphatidylcholine (p-PC) | 28 | |
| Plasmalogen phosphatidylethanolamine (p-PE) | 15 | |
| Sphingolipid | Ceramide (CER) | 19 |
| Glucosylceramide (GluCer) | 8 | |
| Sphingomyelin (SM) | 34 | |
| Acylglycerols | Diacylglycerol (DG) | 13 |
| Triacylglycerol (TG) | 84 |
Abbreviation: ADNI, Alzheimer's Disease Neuroimaging Initiative.