(J) Bar graph representing the normalized average value of synaptic ATP level on the basal condition, on DHPG treatment for 5 minutes, on DHPG treatment with MPEP, on DHPG treatment with anisomycin and on DHPG treatment with cycloheximide (350μM). Data presented as mean ± SEM with scattered data points. Values in all other groups were normalized to the basal group for the corresponding experiment. *p<0.05, n=8 animals. 