bed equipment tanning used

bed equipment tanning used

Exposure to ultraviolet radiation induces two of the most common DNA mutations known in cellular biology. Those include cyclobutane–pyrimidine dimers (CPDs) and 6–4 photoproducts (6–4PPs) and their Dewar valence isomers.[6]. Cells have developed a number of repair mechanisms to counteract the DNA damage caused by ultraviolet radation and other toxins. In human cells, a repair process is initiated after DNA damage.

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Tanning beds have a different ratio of UVA to UVB radiation than sunlight does. Furthermore, the radiation levels are more intense, requiring individuals to limit their exposure to very brief periods. One unanswered question is: what is the effect on the immune system. Exposure causes changes in antigen presentation by Langerhans cells and macrophages. Also, the activities of natural killer cells and T cells is reduced. Last, cytokine regulation is disrupted by UV exposure. [10] Ultraviolet radiation exposure may facilitate the growth of skin neoplasms and the spreading of skin-associated infections.