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. 2017 Sep 5;7:10431. doi: 10.1038/s41598-017-10651-0

Table 1.

Identification of the serum lysoglycerophospholipids (Lyso-PLs) that were significantly altered by the high-fat diet (HFD) compared to the normal-fat diet (NFD) after 15 and 30 days of feeding in the initial study.

Ionization mode Ion m/z (MS) Distinctive fragments (MS/MS) Tentative identificationϮ Lipid subclass Increased with HFD feeding
+ESI [M + H]+: 524.3743 184.1, 104.1, 60.1 Lyso-PC (18:0) Monoacylglycerophospho cholines 15d
[M + H]+: 520.3440 184.1, 104.1, 60.1 Lyso-PC (18:2)
[M + H]+: 518.3251 184.1, 104.1, 60.1 Lyso-PC (18:3)
[M + H]+: 550.3871 184.1, 104.1, 60.1 Lyso-PC (20:1)
[M + H]+: 548.3719 184.1, 104.1, 60.1 Lyso-PC (20:2)
−ESI [M − H]: 599.3218 419.2, 283.3, 79.0 Lyso-PI (18:0) Monoacylglycerophospho inositols 30d
[M − H]: 597.3060 417.2, 281.8, 79.0 Lyso-PI (18:1)
[M − H]: 621.3060 441.0, 305.1, 79.0 Lyso-PI (20:3)
[M − H]: 619.2906 439.0, 303.2, 79.0 Lyso-PI (20:4)

ϮAccording to the LIPID MAPS32 glycerophospholipid nomenclature, the structure of the acyl chain is indicated within parentheses in the ‘Headgroup (sn1 or sn2)’ format. The headgroup is assumed to be attached to the sn3 position of glycerol.

Abbreviations: Lyso-PC, lysophosphatidylcholine; Lyso-PI, lysophosphatidylinositol.