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. 2009 Mar 16;4(3):e4827. doi: 10.1371/journal.pone.0004827

Figure 6. Glycemia regulates β-cell proliferation in spontaneously autoimmune diabetic NOD mice.

Figure 6

A: BrdU uptake by residual β-cells of NOD mice is controlled by BG levels. Newly diabetic NOD mice were randomly treated with: no℞, n = 8; exogenous insulin (pellet) and BrdU labeled day1–3 (early), n = 3, crosshatched grey bar, or BrdU labeled day 4–7 (late), n = 6, hatched; insulin pellet treated mice that did not restore normoglycemia (prim. fail.), n = 4, hatched grey bar, and were compared to pre-diabetic NOD mice, n = 3, open bar. Results are shown as mean±SE, with significance levels: (*) prediabetic: p = 0.016, and insulin pellet (late): p = 0.0051, respectively. B: Correlation plot as in Figure 4C. Each symbol represents a single mouse, and all mice, regardless of treatment group are included. Correlation coefficient r = 0.78; 95% confidence interval (dashed lines). Note, that NOD mice that restored normoglycemia upon insulin pellet, and were immediately BrdU labeled (pellet early) maintain increased β-cell proliferation. These mice are shown in the plot (⧫) but were omitted from correlation coefficient calculation.