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. 2010 Mar 3;65A(4):344–352. doi: 10.1093/gerona/glq018

Figure 4.

Figure 4.

Insulin-like growth factor-1 (IGF-1) in Ames dwarf (df) mice after growth hormone (GH)/thyroxine (T4) treatment. (A) Plasma IGF-1 in young-df GH and T4, n = 3; old-df GH and T4, n = 5; young-N, n = 11; and old-N, n = 8. Nondetectable levels in df-saline and few became detectable in df-GH and T4, resulting in low n values. (B) Hepatic IGF-1 messenger RNA (mRNA) in young-df saline, n = 12; old-df saline, n = 10; young-df GH and T4, n = 12; old-df GH and T4, n = 10; young-N, n = 13; and old-N, n = 10. Groups that do not share a superscript are significantly different (p < .05).