Wearing SPF30 sunscreen has strong ability to prevent deadliest skin cancer, study finds

Dermatologists tout sunscreen for its ability to prevent signs of aging and protect against skin cancer. But now, new research suggests a measurable benefit of slathering on sunblock with as little as SPF30: a reduced risk of melanoma.

“Sunscreens are known to prevent skin from burning when exposed to UV sunlight, which is a major risk factor for melanoma. However, it has not been possible to test whether sunscreens prevent melanoma, because these are generally manufactured as cosmetics and tested in human volunteers or synthetic skin models,” principal investigator Christin Burd, assistant professor of molecular genetics at The Ohio State University, said in a news release. “We have developed a mouse model that allows us to test the ability of a sunscreen to not only prevent burns but also to prevent melanoma.”

Thin melanomas cause greater number of deaths

More people are dying from melanomas thinner than a dime than from the thicker cancerous skin lesions long thought to be more dangerous, according to a new study from Queensland, Australia.

Thin tumors, which are less often lethal but far more common, accounted for almost one quarter of melanoma deaths in Queensland in the most recent period studied, compared to 14 percent of deaths blamed on thicker tumors.


Sunscreen does not protect against deadliest skin cancer

Sunscreen does not protect against deadliest skin cancer.  Even SPF 50 sunscreen does not stop UV rays penetrating the skin and damaging the body’s natural defence against skin cancer, scientists have found “UV light has long been known to cause melanoma skin cancer, but exactly how this happens has not been clear,” said Professor Richard Marais, study author and Cancer Research UK scientist, based at the University of Manchester.


Researchers find clues on how melanoma resists effective treatments

Researchers believe they have discovered a mechanism by which tumors eventually evade effective combination treatments for melanoma, providing clues that could lead to longer-lasting therapies for the deadliest of skin cancers.

“If we can understand better what type of (genetic) mutations occur in melanoma … we can design better and better drugs to suppress these. Either new drugs, better combinations of drugs or better regimens of drugs,” Lo said.


Could orange juice, grapefruit raise skin cancer risk?

People who enjoy a glass of orange juice or some fresh grapefruit in the morning may face a slightly increased risk of melanoma — the least common but most deadly form of skin cancer.

That’s the finding from a study of more than 100,000 U.S. adults followed for about 25 years. Researchers discovered that those who regularly consumed orange juice or whole grapefruit had a higher risk of developing melanoma, compared to people who avoided those foods.


Erectile dysfunction drugs linked to skin cancer?

A new study shows a possible link between popular erectile dysfunction drugs and an increased risk of developing a deadly form of skin cancer.

The disturbing link comes from a large study in JAMA Internal Medicine that followed nearly 26,000 men who had used Viagra at least once since the study began in 2000. It found that those men had about an 84 percent greater risk of developing melanoma than men who had not used the medication. Viagra was the only drug studied because at the time research began, it was the only approved erectile dysfunction medication.


Are nail salon UV lamps a skin cancer risk?

Many nail salons use ultraviolet lamps, which utilize the same hazardous rays as tanning beds to dry nail polish.  But a new study
suggests that it would take multiple manicures for these lamps to cause significant damage.

“I wouldn’t tell a patient to stop going unless they were going multiple times a month,” lead author Dr. Lyndsay Shipp from Georgia
Regents University in Augusta told Reuters Health.


Eczema sufferers have lower skin cancer risk

Editorial: JN has experienced this.

Eczema sufferers may have less chance of developing skin cancer, new research suggests.

Experts at King’s College London found the immune response triggered by the skin condition could stop tumours forming by shedding potentially cancerous cells.




Why avoiding sunshine could kill you

Women who never sunbathe during the summer are twice as likely to die than those who sunbathe everyday, a major study has shown.

New research, which followed nearly 30,000 women over 20 years, suggests that women who stay out of the sun are at increased risk of skin melanomas and are twice as likely to die from any cause, including cancer.






Airline crews have twice the risk of melanoma

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Airline pilots and cabin crews appear to have twice the risk of developing the skin cancer melanoma compared to the general population, a new review of past studies finds.  This higher risk may be due to the increased exposure to ultraviolet (UV) radiation at higher altitudes, the researchers said. “At 9000 meters [about 30,000 feet], where most commercial aircraft fly, the UV level is approximately twice that of the ground,” they said.