Table 1.

Phenotypes of BrdU-positive cells in the hippocampus after IGF-I treatment

	C	IGF-I
Proliferation (24 hr)
Neuron	70  ± 2	66.6  ± 5.1
Astrocyte	2.5  ± 0.6	3  ± 1.1
Other	27.5  ± 0.5	30.4  ± 1
Survival (3 weeks)
Neuron	75.6  ± 4	76.3  ± 1.5
Astrocyte	4.2  ± 0.6	6  ± 1.5
Other	20.2  ± 2	17.7  ± 1.4

Numbers are mean ± SEM of percentage of cells labeled with each specific marker.

C, Controls receiving saline infusion for 7 d. IGF-1, Animals receiving IGF-1 infusion for 7 d.