Fig. 5From: Alkaloids from piper longum protect dopaminergic neurons against inflammation-mediated damage induced by intranigral injection of lipopolysaccharideEffects of PLA treatment on the contents of DA and DOPAC in the striatum. Rats were randomly grouped and then treated with PLA (25, 50 and 75 mg/kg) or vehicle for 6 weeks after LPS injection. On day 42, rats were decapitated and the contents of DA and DOPAC in the striatum were detected by HPLC. The survival ratios (right relative to left side) of DA a and DOPAC b were calculated. n = 6. *** P < 0.001 vs. sham group, # P < 0.05, ## P < 0.01 vs. LPS groupBack to article page