Fig. 4: Uninjured versus regenerated Acomys whisker pad skin.

A Trichrome stain of uninjured whisker pad skin, with hair follicles and two whisker follicles surrounded by muscle with a sebaceous gland, blood sinuses, innervation, and dermal papillae. B Comparable section of regenerated whisker pad skin 70 dpi with the same structures. There appear to be more adipose cells and fewer hair follicles in the regenerated skin, just left of the whisker follicle. Scale bars represent 250 µM.