IL18R1 and type 2 diabetes mellitus: The representative immunohistochemistry images from three independent determinations of IL‐18R expression in the adipose tissue samples from diabetic lean (one donor), overweight (three donors), and obese (three donors) are shown in Figure 4A. The changes in IL‐18R protein expression in the adipose tissue samples from T2D patients were further confirmed by confocal microscopy as shown in Figure 4B.