Exposição Eritematosa: Efeitos da radiação ultravioleta no tecido epitelial humano

Abstract

With the increasingly frequent changes in the chemical properties of the atmosphere, especially with the reduction of the ozone layer, concerns and worries have arisen in the scientific community. Since the ozone layer is directly related to the amount of ultraviolet radiation and its types that come into contact with the earth's surface. Thus, as the intensity of ultraviolet radiation increases, it ends up producing harmful effects to humans, especially those who have little production of melanin. This produces two effects related to the interaction of epithelial tissue with ultraviolet radiation. The first is the accumulative effect of radiation throughout life that consequently causes chronic reactions, such as skin aging and genetic mutations, leading the individual to have an increased predisposition to skin cancer. The second effect can be considered the most neglected by the population, it is that more direct effect, different from the chronic one, this one is acute and many times it can occur with a simple exposure to the sun, leading to erythema’s, that is, the redness present on the skin. However, these two effects are completely interconnected, since daily and continuous exposure, besides producing erythema, increases the chances of it leading to skin cancer. In this sense, in order to discuss about the erythematous exposure and its biological effects, as well as the experimental equation that governs it, besides discussing the importance of the ultraviolet index, bibliographic research was carried out aiming to clarify the importance of the knowledge of ultraviolet radiation and its interaction with the epithelial tissue, so that, as well as the skin cancers, the erythema’s can be avoided with simple prevention measures.