Fig. 2From: Palmitoylethanolamide counteracts substance P-induced mast cell activation in vitro by stimulating diacylglycerol lipase activityEffect of PEA on cell viability and cytotoxicity of both unstimulated and SP-stimulated RBL-2H3 cells. a, b Cell viability and cytotoxicity were assessed, by means of a MultiTox-Glo assay after that RBL-2H3 cells were treated with PEA (10 μM) or stimulated with SP (10 μM) in the presence or absence of PEA (10 μM) for 15 min at 37 °C in a 5% CO2 atmosphere. RFU was measured at 495 nm and 505 nm (a). RFU was measured at 500 nm and 550 nm (b). Each bar shows the mean ± SEMBack to article page