1. Enaltecer
April 2024
Exposure to UV rays can cause injuries and breaks in your DNA during the next three or four hours, even in the shade, which leads to skin cancer mutations, says a new study.
Paradoxically, the melanin of the skin is responsible for this delayed reaction, since it can be carcinogenic and protective, affirms Douglas E. Brash , researcher of the Yale University and research leader.
The researchers conducted experiments with mice and human cells, through which they discovered that the ultraviolet radiation It produces reactive oxygen and nitrogen slowly.
After that, when combined, they stimulate an electron of the melanin what causes the injuries in the DNA .
This transfer of energy to DNA can occur in the dark, but it causes the same damage as the sun in broad daylight, "says Brash.
Now that this process is known, experts say that new sun protection formulas must be developed, since there are chemical products that can divert energy from the sun. melanin before it hurts the DNA , but they are not adequate for skin .
3.5 millions of skin cancers of basal and squamous cells, are diagnosed every year