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. 2013 Jun 17;110(27):11181–11186. doi: 10.1073/pnas.1221803110

Fig. 5.

Fig. 5.

Suggested signaling pathway of M1/M3 muscarinic receptors. Activation of M1/M3 receptors on Purkinje cells linked to the activation of PLCβ triggers cannabinoid production and release that is sufficient to block presynaptically expressed LTP. eCBs, endocannabinoids; PIP2, phosphatidylinositol 4,5-bisphosphate; VGCC, voltage-gated calcium channel.