CTSD and type 2 diabetes mellitus: Of the 14 prognostic only proteins, the levels of two were higher in T2D: Cathepsin-D (1247 ± 133 vs. 857 ± 93 RFU, T2D vs. control, p < 0.05) and Cadherin-E (71,880 ± 2007 vs. 63,688 ± 1882 RFU, T2D vs. control, p < 0.005) (Figure 1D–E).