Fig. 12.
Normal dopamine metabolism. HPLC analysis of tissue level of dopamine (A), metabolites of dopamine and serotonin (B) in striatum did not detect any significant alterations (n = 7 for controls and n = 6 for mutants). (C) Their tissue levels in frontal cortex of mutant mice did not show any significant changes, either (n = 7 for controls and n = 4 for mutants).