In mice with cuprizone (Cpz) diet-induced demyelination, intraperitoneal treatment with 3 mg·kg−1 Δ9-THC for 5 days increased myelin ultrastructure thickness, and expression levels of MAG, myelin oligodendrocyte glycoprotein, and MBP, improved motor function recovery, decreased anxiety-like behaviors, and increased densities of differentiating progenitor CC1+ oligodendrocytes [126]. This evidence concerns the gene OMG and Anxiety.