Fig. 4.

The morphologies and features of psoriasis and atopic dermatitis skins. Typical histologic features of psoriasis includes epidermal hyperplasia with elongated rete ridges, a less discrete epidermal granular layer, parakeratosis, and leukocyte infiltration of the viable skin. Dermatitis is an inflammatory skin disease characterized by presence of erythema, edema, vesicles, and lichenification. The effects of resveratrol and its analogs on psoriasis and dermatitis for ameliorating the signs and symptoms are summarized in this figure.