In order to evaluate the distribution and eventual heterogeneity of pancreatic islets in terms of MDA5 expression, we performed a whole slide scanning imaging analysis of pancreatic tissue sections derived from EUnPOD nondiabetic donors and from T1D DiViD cases, stained for insulin, glucagon, and MDA5 (Figure 3A, panel A). The gene discussed is GCG; the disease is type 1 diabetes mellitus.