AA	arachidonic acid
Cer	ceramide
DAG	diacylglycerol
DHA	docosahexaenoic acid
FFA	free fatty acid
HexCer	hexosylceramide
LPC	lysophosphatidylcholine
LPE	lysophosphatidylethanolamine
MAG	monoacylglycerol
MAOA	monoamine oxidase A
PC	phosphatidylcholine
PC-O	plasmanylphosphatidylcholine
PC-P	plasmenylphosphatidylcholine
PE	phosphatidylethanolamine
PE-O	plasmanylphosphatidylethanolamine
PE-P	plasmenylphosphatidylethanolamine
PI	phosphatidylinositol
PUFA	polyunsaturated fatty acid
SHexCer	sulfatide
SM	sphingomyelin
TAG	triacylglycerol
;O1	total number of hydroxyl groups = 1 (sphingolipids)
;O2	total number of hydroxyl groups = 2 (sphingolipids)
;O3	total number of hydroxyl groups = 3 (sphingolipids)