Skin Cancer Prevention Strategies

Abstract

discouraged. There is scientific evidence that indicates oral and topical supplementation with antioxidants, vitamins, and phytochemicals is beneficial for chemoprevention. Secondary prevention for skin cancer is performing periodic examinations of the skin for suspicious growths, and having dangerous-looking growths excised by a dermatologist. Practicing a combination of these skin cancer prevention strategies will reduce the risk of skin cancer. 2. Photocarcinogenesis Solar UVR is composed of UVA (320-400 nm), UVB (290-320 nm), and UVC (200-290 nm). The atmospheric ozone layer inhibits all UVC and some UVB from reaching the surface of the Earth. The composition of UVR that reaches humans is approximately 95% UVA and 5% UVB, depending on factors such as cloud coverage, weather, thickness of the ozone layer, and latitude. UVA can penetrate deep into the dermis, while most UVB is absorbed by the stratum corneum in the epidermis but some passes into the upper dermis [7]. Human skin has evolved protective mechanisms against solar UVR. Melanocytes produce melanin that absorbs and scatters light in the lower epidermis [8]. The stratum corneum scatters UV light, and stratum corneum, spinosum, and basale can absorb UV light. Endogenously produced antioxidants and DNA repair enzymes protect skin cells from the damaging effects of UVR [9, 10].

Physical activity of early stage melanoma survivors

“…For example, the recommendation may be to stay in the shade, which makes wearing a hat less important and avoids patients’ objections to hats. Since the use of sunscreen often prolongs time in the sun and wearing less protective clothing (Passantino et al, 2013), which can increase the risk of sunburn (Robinson, 1992, Harris and Alberts, 2004), dermatologists may say to stay out of the sun.…”