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. Author manuscript; available in PMC: 2014 Feb 25.
Published in final edited form as: Brain Res. 2012 Dec 1;1497:1–14. doi: 10.1016/j.brainres.2012.11.043

Figure 4.

Figure 4

Effect of carbidopa on the degree of inhibition of L-DOPA methylation by (+)-catechin in rats. (A) Plasma L-DOPA concentrations. (B) Plasma 3-OMD concentrations. (C) Striatal dopamine levels. (D) Striatal 3-OMD levels. Rats were injected i.p. with 400 mg/kg (+)-catechin 2 h before oral administration of L-DOPA/carbidopa (20/20 mg/kg). The vehicle group received water administration only. Each value is the mean ± S.D. * P < 0.05 compared to vehicle group. # P < 0.05 compared to L-DOPA + carbidopa group.