Figure 6.

Effects of α-lipoic acid alone or in combination with L-DOPA on the activity of catalase in the prefrontal cortex, hippocampus and striatum of rats subjected to pre-treatment with 6-OHDA. Eight animals per group were used. Values represent mean ± SEM of enzyme activity expressed in µM/min/µg of tissue. a versus control, b versus 6-OHDA, c versus 6-OHDA + LDOPA, d versus 6-OHDA + LA100, e versus 6-OHDA + LA200 respectively; at P < 0.0001 (one-way ANOVA followed by Tukey's post hoc test).