13-OxoODE (Synonyms: 13-KODE)

13-oxoODE is produced from 13-HODE by a NAD+-dependent dehydrogenase present in rat colonic mucosa.[1] 13-OxoODE stimulates cell proliferation when instilled intrarectally in rats.[2] 13-OxoODE has also been detected in preparations of rabbit reticulocyte plasma and mitochondrial membranes, mostly esterified to phospholipids. Production of 13-oxoODE is putatively linked to the maturation of reticulocytes to erythrocytes through the activity of 15-LO.[3][4]

Reference:
[1]. Earles, S.M., Bronstein, J.C., Winner, D.L., et al. Metabolism of oxidized linoleic acid: Characterization of 13-hydroxyoctadecadienoic acid dehydrogenase activity from rat colonic tissue. Biochim. Biophys. Acta 1081(2), 174-180 (1991).
[2]. Bull, A.W., and Bronstein, J.C. Production of unsaturated carbonyl compounds during metabolism of hydroperoxy fatty acids by colonic homogenates. Carcinogenesis 11(10), 1699-1704 (1990).
[3]. Kühn, H., Belkner, J., Wiesner, R., et al. Occurrence of 9- and 13-keto-octadecadienoic acid in biological membranes oxygenated by the reticulocyte lipoxygenase. Arch. Biochem. Biophys. 279(2), 218-224 (1990).
[4]. Kühn, H., Belkner, J., and Wiesner, R. Subcellular distribution of lipoxygenase products in rabbit reticulocyte membranes. Eur. J. Biochem. 191(1), 221-227 (1990).