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  • Title: [Effect of vitamin E-containing liposome on experimental sugar cataract].
    Author: Hattori H, Majima Y, Nagamura Y, Ishiguro I.
    Journal: Nippon Ganka Gakkai Zasshi; 1989 Jan; 93(1):97-102. PubMed ID: 2750606.
    Abstract:
    The effect of vitamin E-containing liposome on experimental sugar cataract formation in vitro was investigated. The lenses of male Wistar rats aged 6 weeks were prepared by incubating with 55. 6 mM glucose with vitamin E-containing liposome (dipalmitoyl phosphatidylcholine: DPPC). We examined the formation of lens opacity and assayed vitamin E and its related compounds. Incubation with vitamin E-containing liposome prevented sugar cataract formation. In Addition, vitamin E concentration in lens was significantly elevated by incubation with vitamin E-containing liposome. In lenses of the high level glucose group incubated without vitamin E-containing liposome, lipid peroxide (LPO) content was increased, but in lenses of the high-level glucose group incubated with vitamin E-containing liposome the increase was significantly inhibited at each incubation time. Vitamin E had no effect either on the decrease of reduced glutathione (GSH) or the increase of sorbitol content in lens incubated with high level glucose medium. In conclusion vitamin E-containing liposome was transported from medium to lens well and was significantly effective in preventing experimental sugar cataract formation in vitro. The protective effects of vitamin E are probably caused not only by its antioxidative action.
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