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    Arch Pharm Res. 2003 Oct;26(10):821-5.

    Antioxidant and memory enhancing effects of purple sweet potato anthocyanin and cordyceps mushroom extract.

    Cho J, Kang JS, Long PH, Jing J, Back Y, Chung KS.

    Source

    College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea.

    Abstract

    The effects of purple sweet potato anthocyanin (SPA) and Cordyceps mushroom extract (CME) on lipid peroxidation, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals and cognitive deficits were examined. Both SPA and CME exhibited DPPH radical scavenging activities with similar potency. In contrast, only SPA was shown to effectively inhibit lipid peroxidation initiated by Fe2+ and ascorbic acid in rat brain homogenates. Furthermore, SPA markedly enhanced cognitive performance, assessed by passive avoidance test in ethanol-treated mice. Combined treatments with SPA and CME did not significantly influence the effects of SPA alone. These results demonstrate that anthocyanin prepared from purple sweet potato exhibits memory enhancing effects, which may be associated with its antioxidant properties.

    PMID:
    14609130
    [PubMed - indexed for MEDLINE]

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