Table 5.

Serum IGF-I Levels

	IGF-I (ng/mL)
	78 wk	104 wk	130 wk
Male
WT	239 ± 9	420 ± 29	460 ± 22
KO	237 ± 19	358 ± 42	427 ± 16
Female
WT	298 ± 17	508 ± 30	368 ± 36
KO	300 ± 8	422 ± 31	433 ± 28

Note: Results are mean ± SEM, n = 6–10 per group. KO = knockout; WT = wild type.