Additionally, in T1D patients, a negative correlation was observed between GABA levels and IL-12 (r = −0.29, p = 0.033), IL-15 (r = −0.29, p = 0.033) and IL-1 beta (r = −0.28, p = 0.034) (Figure 1C–G). Here, IL1B is linked to type 1 diabetes mellitus.