The C.A.M. Report
Complementary and Alternative Medicine: Fair, Balanced, and to the Point
  • About this web log

    This blog is intended as an objective and dispassionate source of information on the latest CAM research. Since my background is in pharmacy and allopathic medicine, I view all CAM as advancing through the development pipeline to eventually become integrated into mainstream medical practice. Some will succeed while others fail. But all are treated fairly here.

  • About the author

    John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at www.Vicus.com, a complementary and alternative medicine website.

  • Common sense considerations

    The material on this weblog is for informational purposes. It is not medical advice or counsel. Be smart, consult your health professional before using CAM.

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    Selenium and skin cancer risk

    Researchers from Australia and the Netherlands conducted an 8-year follow-up study.

    First, the details.

    • The incidence of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) of the skin was followed in a random sample of 485 Australian adults.
    • Participants were divided into thirds according to their blood concentrations of carotenoids, {alpha}-tocopherol, and selenium between 1996 and 2004.

    And, the results.

    • There was no relationship between carotenoids or {alpha}-tocopherol levels and the incidence of BCC or SCC.
    • Compared with those who had the lowest selenium concentrations at the start of the study (0.4-1.0 µmol/L), those with the highest serum selenium concentrations (1.3-2.8 µmol/L) had a significantly decreased incidence of BCC tumors and SCC tumors.

    The bottom line?
    The authors concluded, “Relatively high serum selenium concentrations are associated with an ~60% decrease in subsequent tumor incidence of both BCC and SCC.”

    The FDA states, “Some scientific evidence suggests that consumption of selenium may reduce the risk of certain forms of cancer. However, FDA has determined that this evidence is limited and not conclusive.”

    Since the publication of this study, researchers from the US reported no increased melanoma risk with supplemental selenium in a study of 69,671 men and women who self-reported intake of multivitamins and supplemental antioxidants including selenium and beta-carotene over 10 years.

    6/1/09 20:47 JR, updated 9/8/10

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