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Vitamin Therapy Could Help Prevent Skin Cancer

Nicotinamide, a form of vitamin B3 (niacin), can help reduce or reverse DNA damage, inflammation, and immunosuppression caused by ultraviolet radiation.

IANS

Updated:August 10, 2017, 7:21 PM IST
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Vitamin Therapy Could Help Prevent Skin Cancer
Representative Image (Photo courtesy: AFP Relaxnews/ PeopleImages/ Istock.com)
A vitamin therapy using a form of vitamin B3 may have the potential for preventing melanoma in high-risk individuals, a new review has suggested

Niacinamide (nicotinamide) is a form of vitamin B3 (niacin) and is used to prevent and treat niacin deficiency (pellagra).

Niacin deficiency can cause diarrhoea, dementia, tongue redness/swelling, and peeling red skin.

The findings showed that nicotinamide can help reduce or reverse DNA damage, inflammation, and immunosuppression caused by ultraviolet radiation.

"Nicotinamide has been shown in a clinical trial -- called ONTRAC -- to reduce the incidence of non-melanoma skin cancer in high-risk individuals," said Gary Halliday from the University of Sydney in Australia.

The review was detailed in the journal Photodermatology, Photoimmunology and Photomedicine.

Ultraviolet radiation causes DNA damage in melanocytes -- melanin-forming cell, especially in the skin, and leads to the production of reactive oxygen species.

These species induce inflammatory cytokines that, together with the inherent immunosuppressive properties of the ultraviolet radiation, propagates the initiation of cancer formation.

"As nicotinamide reduces the incidence of actinic keratoses and nonmelanoma skin cancers in high-risk individuals and enhances repair of DNA damage in melanocytes, it is a promising agent for the chemoprevention of melanoma in high-risk populations," Halliday said.

Further, "it would be worthwhile to determine whether nicotinamide would also be useful for high-risk melanoma patients", Halliday added.
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