Diabetes developed as early as 14 weeks of age in two NOD.Slc6a19−/−, however, the median survival time without diabetes was 28 and 25 weeks for NOD.Slc6a19+/+ and NOD.Slc6a19−/− mice, respectively (ratio 1.1, 95% confidence interval 0.6–2.0) (Figure 2c). Here, SLC6A19 is linked to diabetes mellitus.