Fig. 2.

Human plasma lipidome. Six major lipid categories, of eight described by the LIPID MAPS classification system, are illustrated with their classes/subclasses and structure of representative of each lipid category. As shown, esterification of fatty acids with different backbone generates complex lipids including glycerolipids, glycerophospholipids and sphingolipds. Lipids in each lipid category are further divided into classes and subclasses based on the head group and type of linkages between the backbone and acyl chains [https://www.lipidmaps.org/]