Figure 2. Serum insulin-like growth factor-1 (IGF-1) levels

Serum insulin-like growth factor-1 (IGF-1) concentrations from individual neonatal rat blood samples are represented by box-and-whiskers plots (19, 27, and 19 samples for AIR, MMI-AIR, and untreated non-acidotic controls, respectively, at day 4; 8 samples for each condition at day 10). Serum IGF-1 was lower in MMI-AIR rats compared to both AIR and untreated non-acidotic controls at day 10. No difference in serum IGF-1 is seen between AIR and control rats. The untreated non-acidotic control values were taken from a previously-published study [6], which ran simultaneously with the current study.