GCK and type 1 diabetes mellitus: Significant differences between the GCK-MODY, type 1 diabetes and control groups were less numerous, with miR-24 showing higher expression in controls than in patients with type 1 diabetes (adjusted p = 0.0060); miR-24, along with miR-23a, miR-145 and miR-99b, also showed significantly lower expression levels in GCK-MODY than in controls (p = 0.0011, p = 0.0103, p = 0.0042 and p = 0.0236, respectively).