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Figure 2. Comparisons of quantities of Npt2b mRNA in Hyp and wild-type mice (n = 10 of each). (a) Relative quantities of mRNA (mean ± SEM) for Npt2b in teeth and intestines of mice at the age of 6 days. Significant differences between Hyp and wild-type mice were found. (b) Relative quantities of mRNA (mean ± SEM) for Npt2b in cultured tooth germs. The expression level in cultured tooth germs derived from Hyp mice was significantly lower than that in those from wild-type mice (*P < 0.05, **P < 0.01, Mann-Whitney U-test).
