Gachet Otanez, Maria SaloméMaria SaloméGachet OtanezGertsch, JürgJürgGertsch2024-10-242024-10-242015-11-21https://boris-portal.unibe.ch/handle/20.500.12422/138121Arachidonic acid (5Z,8Z,11Z,14Z-eicosatetraenoic acid; C20:4) (arachidonate, AA) is a vital polyunsaturated omega-6 fatty acid (PUFA) without its presence the mammalian brain, muscles, and possibly other organs cannot develop or function [1] and [2]. AA fulfils numerous known and possibly yet unknown functions as integral part of mammalian phospholipid membranes and as free AA which also acts as a precursor of a variety of biologically active lipid mediators generally referred to as eicosanoids (e.g., prostaglandins, leukotrienes). A more recent class of eicosanoids is composed of the endogenous cannabinoids (endocannabinoids) 2-arachidonoyl glycerol (2-AG) and arachidonoyl ethanolamide (anandamide, AEA), which act on cannabinoid CB1 and CB2 receptors but also modulate ion channels and nuclear receptors [3] and [4]. In recent years, the role of endocannabinoids as prominent anti-inflammatory and neuromodulatory eicosanoids has been shown by numerous studies [5].enArachidonic acidBiological samplesCorrelationCortisolEicosanoidsQuantitationTandem mass spectrometryValidation500 - Science::570 - Life sciences; biology600 - Technology::610 - Medicine & healthQuantitative analysis of arachidonic acid, endocannabinoids, N-acylethanolamines and steroids in biological samples by LCMS/MS: Fit to purpose.article10.7892/boris.759582661440310.1016/j.jchromb.2015.11.013