Table 2.
Compound list (n = 32) of the significant changes between tumor and normal group using electrospray ionization positive and negative modes
| Catalog | Putative ID | RT (min) | m/z | Adduct ion | VIP | FC |
| TG | TG(54:3) | 15.6 | 902.8202 | [M+NH4]+ | 2.3 | 0.5 |
| TG(52:4) | 15.1 | 872.7729 | [M+NH4]+ | 3.2 | 0.4 | |
| TG(52:2) | 15.6 | 876.8048 | [M+NH4]+ | 3.2 | 0.5 | |
| TG(50:3) | 15.0 | 846.7568 | [M+NH4]+ | 2.9 | 0.3 | |
| TG(50:2) | 15.3 | 848.7722 | [M+NH4]+ | 3.3 | 0.4 | |
| SM | SM(d18:1/24:0) | 13.3 | 815.7015 | [M+H]+ | 1.6 | 1.3 |
| SM(d18:1/18:0) | 7.1 | 775.5980 | [M+FA-H]- | 1.7 | 0.7 | |
| SM(d18:0/22:0) | 9.9 | 811.6627 | [M+H]+ | 2.1 | 1.3 | |
| SM(d18:0/16:0) | 6.0 | 705.5912 | [M+H]+ | 1.0 | 1.4 | |
| PS | PS(P-18:0/22:6) | 9.2 | 818.5336 | [M-H]- | 1.0 | 0.7 |
| PI | PI(22:3/16:0) | 6.1 | 887.5682 | [M-H]- | 1.4 | 1.9 |
| PI(20:4/16:0) | 4.2 | 857.5202 | [M-H]- | 1.4 | 0.6 | |
| PI(16:0/18:2) | 4.4 | 833.520 | [M-H]- | 3.0 | 0.8 | |
| PE | PE(P-18:1/20:4) | 7.1 | 748.5279 | [M-H]- | 2.5 | 0.7 |
| PE(P-18:0/18:2) | 9.7 | 726.5437 | [M-H]- | 2.5 | 1.7 | |
| PE(P-16:0/18:2) | 7.3 | 698.5117 | [M-H]- | 4.0 | 1.9 | |
| PE(20:4/16:0) | 6.2 | 740.5237 | [M+H]+ | 3.6 | 0.4 | |
| PE(18:2/18:1) | 6.6 | 740.5221 | [M-H]- | 2.3 | 0.4 | |
| PE(18:2/16:0) | 6.4 | 714.5061 | [M-H]- | 2.2 | 0.4 | |
| PE(18:1/18:1) | 8.2 | 742.5385 | [M-H]- | 2.4 | 0.6 | |
| PC | PC(38:4) | 6.4 | 810.6034 | [M+H]+ | 2.6 | 1.7 |
| PC(34:3) | 4.8 | 756.5561 | [M+H]+ | 14.2 | 1.5 | |
| PC(30:0) | 5.5 | 706.5394 | [M+H]+ | 2.9 | 2.4 | |
| PC(18:2/16:0) | 6.0 | 758.5702 | [M+H]+ | 3.0 | 0.6 | |
| PC(18:0/20:3) | 8.6 | 812.6191 | [M+H]+ | 3.3 | 3.6 | |
| PC(18:0/18:1) | 9.8 | 832.6090 | [M+FA-H]- | 7.9 | 1.3 | |
| PC (16:1/16:0) | 5.6 | 776.5467 | [M+FA-H]- | 1.2 | 2.0 | |
| PC (16:0/16:0) | 7.3 | 734.5717 | [M+H]+ | 1.5 | 1.4 | |
| LysoPC | LysoPC (16:0) | 1.2 | 496.3395 | [M+H]+ | 3.1 | 0.7 |
| Ceramide | Cer (d18:1/24:0) | 13.9 | 694.6341 | [M+FA-H]- | 1.6 | 1.6 |
| carnitine | Linoleyl carnitine (C18:2) | 1.0 | 424.3408 | [M+H]+ | 1.2 | 0.6 |
| Oleoyl carnitine (C18:1) | 1.2 | 426.3560 | [M+H]+ | 1.1 | 0.8 |
All P value < 0.05. The protonated [M+H]+ and anionized adduct [M+NH4]+ in positive mode, and deprotonated [M-H]- and formic acid adduct [M+FA-H]- in negative ion mode. FC: Fold changes (tumor/normal); LyPC: Lysophosphocholine; PC: Phosphocholine; PE: Phosphatidylethanolamine; SM: Sphingomyelin; PI: Phosphoinositol; TG: Triglyceride; VIP: Variable importance in projection.