title: Application of selected ion monitoring to determination of platelet-activating factor.
abstract: The selected ion monitoring (SIM) technique was applied to determination of platelet-activating factor (PAF) or acetyl glyceryl ether phosphorylcholine (AGEPC). Two types of PAF, 1-hexadecyl- and 1-octadecyl-2-acetyl-sn-glyceryl-3-phosphorylcholine (C16 = 0 AGEPC and C18 = 0 AGEPC), were found in human neutrophils on the challenge with ionophore A23187. The contents of C16 = 0 AGEPC in 1 X 10(7) neutrophil cells of four volunteers, respectively, were 47, 18, 59, and 73 ng and those of C18 = 0 AGEPC were 22, 4, 19, and 31 ng.
mesh_terms: D000328:Adult; D000001:Calcimycin / Q000494:pharmacology; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D009504:Neutrophils / Q000187:drug effects / Q000502:physiology; D010972:Platelet Activating Factor / Q000032:analysis*
chemical_list: D010972:Platelet Activating Factor; D000001:Calcimycin