The Effect of Sunlight on Human Epidermis

Abstract
Qualitative as well as quantitative studies, including direct counting of cells and linear scanning of electron micrographs, to determine volume ratios for epidermal dendritic cells revealed an increase in melanocyte number and an essential absence of Langerhans' cells following two weeks of daily ultraviolet irradiation. These findings suggest some form of relationship between the melanocyte and the Langerhans' cell.