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Sunlight, Vitamin D and Skin Cancer
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Main description:

UV exposuie represents the most important risk factor for the development of nonmelanoma skin cancer. Additionally, assessment of sun exposure parameters has consistently shown an association between the development of malignant melanoma and short term, intense UV exposure, particularly burning in childhood. As a consequence, protection of the skin from UV exposure is an integral part of skin cancer prevention programs. However, more chronic, less intense UV exposure has not been found to be a risk factor for melanoma and in fact has been found in some studies to be protective. Moreover, 90% of all requisite vitamin D is formed within the skin through the action of the sun—a serious problem—for a connection between vitamin D deficiency and various types of cancer (e. g. , colon, prostate and breast cancers) has been demonstrated in a large number of studies. Hence, the - sociation between vitamin D deficiency and various internal malignancies has now opened a debate among dermatologists and other clinicians how to balance between positive and negative effects of solar and artificial UV exposure. The goal of this volume is to provide a comprehensive, highly readable overview of our present knowledge of positive and negative effects of UV exposure, with a focus on vitamin D and skin cancer.


Feature:

Leading researchers and practitioners explore the latest findings relevant to Vitamin D and skin cancer


Covers a huge range of topics


Contents:

CONTENTS 1. Sunlight, UV-Radiation, Vitamin D and Skin Cancer: How Much Sunlight Do We Need?....................................................... 1 Michael F. Holick Abstract................................................................................................................................. 1 Prehistorical and Historic Perspectives.............................................................................. 1 Photoproduction of Vitamin D3............................................................................................ 2 Factors Controlling Cutaneous Vitamin D Synthesis........................................................ 2 Sources and Metabolism of Vitamin D................................................................................ 4 Role of Vitamin D in the Prevention of Chronic Diseases................................................. 5 Vitamin D Deficiency Pandemic.......................................................................................... 7 Sunlight, Vitamin D and the Skin Cancer Conundrum.................................................... 7 Conclusion.......................................................................................................................... 10 2. Solar Ultrav iolet Irradiance and Cancer Incidence and Mortality...................................................................... 16 William B. Grant Introduction........................................................................................................................ 16 Cancer................................................................................................................................. 16 Other Diseases for Which Solar UVB and Vitamin D Are Beneficial/Protective.......... 25 Summary and Conclusion.................................................................................................. 25 3. Vitamin D Status and Cancer Incidence and Mortality............................................................................................. 31 Edward Giovannucci Introduction........................................................................................................................ 31 Ecologic Studies of Sun Exposure..................................................................................... 32 Case-Control and Cohort Studies of Sun Exposure........................................................ 32 Prospective Studies of Circulating 25(OH)vitamin D and Cancer Risk........................ 33 Studies of Vitamin D Intake............................................................................................... 35 Randomized Trial of Vitamin D Intake and Colorectal Cancer..................................... 36 Solar Radiation, Vitamin D and Survival Rate of Colon Cancer................................... 36 Vitamin D and Cancer Rates in United States Black Men.............................................. 37 Synthesis of Evidence Regarding Sun Exposure, Vitamin D and Cancer Incidence and Mortality........................................................................ 38 Implications for Future Research...................................................................................... 39 4. Sun Exposure and Cancer Surviva l in Norway: Changes in the Risk of Death with Season of Diagnosis and Latitude.................................................................... 43 Alina Carmen Porojnicu, Arne Dahlback and Johan Moan Abstract............................................................................................................................... 43 Introduction.............................................


PRODUCT DETAILS

ISBN-13: 9780387775746
Publisher: Springer (Springer New York)
Publication date: February, 2008
Pages: 344

Subcategories: Dermatology, Oncology