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Isofurans are nonclassic eicosanoids formed nonenzymatically by free radical mediated peroxidation of arachidonic acid. The isofurans are similar to the isoprostanes and are formed under similar conditions, but contain a substituted tetrahydrofuran ring. The concentration of oxygen affects this process; at elevated oxygen concentrations, the formation of isofurans is favored whereas the formation of isoprostanes is disfavored.[1][2]


  1. ^ Roberts, L. Jackson; Fessel, Joshua P.; Davies, Sean S. (2006-04-05). "The Biochemistry of the Isoprostane, Neuroprostane, and Isofuran Pathways of Lipid Peroxidation". Brain Pathology. 15 (2): 143–148. doi:10.1111/j.1750-3639.2005.tb00511.x. ISSN 1015-6305.
  2. ^ Roberts, LJ 2nd and Fessel, JP (Mar 2004). "The biochemistry of the isoprostane, neuroprostane, and isofuran pathways of lipid peroxidation". Chem Phys Lipids. 128 (1–2): 173–86. doi:10.1016/j.chemphyslip.2003.09.016. PMID 15037162.CS1 maint: multiple names: authors list (link)