Effects of nanosuspension (NS2-G) on (a) total distance travelled and (b) distance travelled in mice. Data are presented as mean ± S.E.M. Post hoc significant differences are as follows: *, ** and ***, P < 0.05; P < 0.01 and P < 0.001 vs. PLA; +, ++ and +++, P < 0.05; P < 0.01 and P < 0.001 vs. SAL; SAL- saline, PLA – placebo.