Dopamine and norepinephrine neuroblasts of the ventral mesencephalon, hypothalamus,
and dorsolateral pons were transplanted from fetal African green monkeys into multiple
brain sites in adult (host) African green monkeys. Tissue was grafted from both early and late
gestational age fetuses. Immunohistochemical analysis, with antibodies to tyrosine
hydroxylase, a marker of catecholamine-containing neurons, showed large numbers of
transplanted catecholamine neurons in host cerebral cortex, corpus striatum and lateral …