Figure 4.

(A) Corneal nerve fiber density (left), corneal nerve branch density (middle), and corneal nerve fiber length (right) in diabetes patients at baseline and at 6 and 12 months after simultaneous pancreas kidney transplantation, where significant regeneration is recorded. (B) Intra-epidermal nerve fiber density in control subjects and in diabetes patients at baseline and 12 months after simultaneous pancreas kidney transplantation (SPK) showed no significant improvement. NFD, nerve fiber density; NBD, nerve branch density; NFL, nerve fiber length.³⁷