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  • Title: Lipid peroxidation in rat uterus.
    Author: Devasagayam TP.
    Journal: Biochim Biophys Acta; 1986 May 21; 876(3):507-14. PubMed ID: 3085721.
    Abstract:
    Lipid peroxidation in rat uterus has been studied using NADPH- and ascorbate-induced systems. Lipid peroxidation in rat uterus is low as compared to rat liver. Uterus is more sensitive to ascorbate-induced lipid peroxidation than that induced by NADPH. Uterus contains lower amounts of phospholipids and has a lesser degree of unsaturation in lipids. Co-factor studies show that Fe2+ is more important for ascorbate-induced lipid peroxidation. Endometrium is more sensitive to ascorbate-induced lipid peroxidation than myometrium. It also contains more total lipids and phospholipids besides having a higher degree of unsaturation in the lipids as compared to myometrium. Among the subcellular fractions, mitochondria are more prone to ascorbate-induced lipid peroxidation, whereas microsomes are more sensitive to NADPH-induced lipid peroxidation. Uteri from old rats (24 months) and pregnant rats are more resistant to lipid peroxidation than those from 3-month-old control rats. Uterus of pregnant rats contains more factors which inhibit lipid peroxidation and also has a lesser degree of unsaturation in lipids compared with uterus of control rats. The possible consequences of the resistance of uterus to lipid peroxidation, especially during pregnancy and senescence, are discussed.
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