Hsp60 immunoreactivity was not found in the epidermal layer of control patients (Figure 4C1), while it was expressed in the epidermal cells of T1D, T1D+ESRD, and KP patients (Figures 4C2–4C4), although the intensity of the reaction was lower than that of Hsp27. Here, HSPB1 is linked to keratosis pilaris.