Fig. 8:

PCNA reaction after therapy.

The left panel shows the right arm and the right panel shows the left arm. PCNA-positive cells can be observed mainly in the basal layer, with smaller numbers in the middle layer of the epidermis on the right side (photopneumatic therapy-only side). On the other hand, a larger number of these cells is observed from the basal layer to just beneath the epidermis on the photopneumatic plus profusion therapy side. In addition, PCNA-positive cells are only rarely observed in the basal layer of normal skin.