FIG. 1.

Transduction mechanisms for cannabinoid CB1 receptors. AC, adenylate cyclase; AEA, arachidonyl ethanolamide, anandamide; 2-AG, 2-arachidonylglycerol; CB1, cannabinoid receptor 1; GABA, gamma-aminobutyric acid; MAPK, mitogen-activated protein kinase; THC, tetrahydrocannabinol.