Fractional photothermolysis as up-to-date technology for skin regeneration

Abstract

The use of lasers in medical cosmetology today is widespread. The effects of laser techniques are pronounced and persistent. It is known that skin microcirculation increases after the procedures, renewal of keratinocytes and fbroblasts is stimulated, but there is little information about the molecular basis of the action of ablative lasers, about the mechanisms underlying the formation of new tissues (various types of collagens, laminin, vessels of the microvasculature).Purpose of the study. Formation of a detailed understanding of the mechanisms underlying the regenerative processes of the skin after ablative laser exposure.Results. After ablative laser exposure, the amount of interleukin-1α signifcantly increases, which leads to stimulation of the formation of type I and III collagens, laminin. There is an increase in vascular, fbroblast growth factor, which also helps to stimulate the proliferation of fbroblasts, increase its blood supply.Conclusions. Based on the data obtained, it can be concluded that fractional photothermolysis improves the elastic properties of the skin, enhances skin trophism and activates the metabolism of the skin. The prolongation of the effects of a single procedure is due to the activation and stimulation of the skin’s own regenerative resources, which contributes to an increase in its own fbroblasts, collagens, vessels of the microvasculature, cells of the epidermis and dermis.