Lipid Peroxidation After Ionizing Irradiation Leads to Apoptosis and Autophagy

A living cell is a dynamic biological system composed primarily of nucleic acids, carbohydrates, lipids, and proteins that structurally and functionally interact with many other molecules--organic and inorganic--to carry out normal cell metabolism. Exposure of a cell to radiation can both directly and indirectly alter molecules within the cell to affect cell viability. Radiation energy absorbed by tissues and fluids is dissipated by the radiolysis of water molecules and biomolecules [1-3]. These reactions result in redox-reactive products such as hydroxyl radical (HO*), hydrogen peroxide (H2O2), hydrated electron (e-aq), and an array of biomolecule-derived carbon-, oxygen-, sulfur-, and nitrogen-centered radicals (i.e., RC*, RO*, RS*, and RN*) that can in turn lead to the formation of organic peroxides and superoxide anion radicals ( O2*) in the presence of molecular oxygen [3, 4].

• Publication year

  2012

• Venue

  Unknown venue

• Publication date

  2012-08-29

• Fields of study

  Medicine, Chemistry, Environmental Science

• Identifiers
  DOI 10.5772/48189
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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