(NDJ) ? Fair skinned people are more sensitive to contracting skin cancer when exposed to the sun. Natural redheads however, are even more prone to contracting deadly skin cancer, even without sun, according to a new study.
Not only is this group more vulnerable to the sun?s ultraviolet (UV) rays, but a study in mice has shown the pigment that gives hair a red hue may in itself have cancer-causing effects, said a paper published on Wednesday in the journal Nature.
Natural redheads are more prone to contracting deadly skin cancer, even without sun exposure. Photo Credit: BRUNO
Co-author David Fisher, cancer center director at Massachusetts General Hospital, said: ?We studied melanoma formation in ?redheaded? mice and discovered that the red pigment had an ability to promote melanoma formation, even in the absence of ultraviolet radiation exposure?.
?This was a surprising result for us, because we expected that fair-skinned people get melanoma due to weak protection from sunlight and ultraviolet radiation. However the results suggest that even without UV exposure, the red pigment may contribute to melanoma formation by damaging healthy cells.?
Light-skinned people and redheads with freckles have trouble producing the black-grown pigment eumelanin, which absorbs harmful UV rays ? instead this group of people produces the red-yellow pigment pheomelanin which provides a weak UV shield.
United States cancer researchers Mizuho Fukunaga-Kalabis and Meenhard Herlyn wrote in a comment carried by Nature: ?completely avoiding UV rays would not protect red-haired people from melanoma?.
The suggest that ?red-haired individuals should undergo frequent dermatological skin checks, besides avoiding sun exposure.?
According to the World Health Organization about 132,000 cases of melanoma, the deadliest form of skin cancer, are diagnosed each year and two to three million cases of non-melanoma cancers; the numbers rise each year.
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