Figure 4From: Characterisation of the cannabinoid receptor system in synovial tissue and fluid in patients with osteoarthritis and rheumatoid arthritisLevels of the endocannabinoids anandamide (AEA), 2-arachidonyl glycerol (2-AG), palmitoyl ethanolamide (PEA), and oleoyl ethanolamide (OEA) in the synovia of patients with either osteoarthritis (OA) (n = 14) or rheumatoid arthritis (RA) (n = 6). Data were analysed using the non-parametric Mann-Whitney test and are expressed as picomoles per gram.Back to article page