1. Prostaglandins and Radiation in Cell Culture -- 2. Effects of Gamma Irradiation on Prostaglandin Biosynthesis and Metabolism: Intact Tissue -- 3. Radiation-Induced Alterations in Cyclooxygenase Product Release: An Overview -- 4. Irradiation and Blood Vessel Prostaglandin Metabolism -- 5. Effect of Ultraviolet Radiation on Eicosanoid Metabolism of Cells in Culture -- 6. Effects of Ultraviolet Radiation on Eicosanoid Metabolism in Intact Skin -- 7. Protection Against Ionizing Radiation with Eicosanoids -- 8. Protection of Radiation Damage by Eicosanoids-Clinical Studies -- 9. Radiation-Induced Genetic Damage and the Prostaglandin System -- 10. Radiation, Lipid Peroxidation and the Role of Oxygen Radicals in Eicosanoid Metabolism -- 11. Radiobiology of Blood Vessels -- 12. Dermal Damage from Ultraviolet Radiation