Fig. 4.

Number of monoenzymatic TH⁺ AAAD^-, monoenzymatic TH^- AADC⁺ , and bienzymatic TH⁺ AAAD⁺ neurons in the arcuate nucleus 72 hours after the administration of 100 mg of 6-OHDA into the lateral ventricles of the brain following systemic administration of 25 mg/kg DMI; the control was injected with 25 mg/kg DMI and 0.9% NaCl