GPR18 and frontotemporal dementia: We studied the gene expression of receptors (Cnr1, Cnr2, Gpr18, Gpr55, Gpr119, Ppara, Pparg, Trpv1) and enzymes (Faah, Napepld, Mgll, Alox5, Alox12) related to the eCBome as well as markers of intestinal permeability (Tjp1, Dsg2, Ocln, Cdh1) and inflammation (Tnfa, Il1b) in the small intestine of FTD and WT mice (Figure 4A,B and Figure S1).