Yu Jin Choi

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This study investigated the anti-amnesic effect of fermented Ganoderma lucidum water extracts (GW) on scopolamine-induced memory impairment in rats. GW were fermented by the lactic acid bacterium Bifidobacterium bifidum (FGWB), followed by Lactobacillus sakei LI033 (FGWBL). To induce amnesia, scopolamine (1 mg/kg) was intraperitoneally injected into rats 30(More)
Arginine decarboxylase (ADC, EC 4.1.1.9) is a key enzyme in the biosynthesis of polyamines in higher plants, whereas ornithine decarboxylase represents the sole pathway of polyamine biosynthesis in animals. Previously, we characterized a genomic clone from Dianthus caryophyllus, in which the deduced polypeptide of ADC was 725 amino acids with a molecular(More)
To examine the effect of tumor suppressor protein p53 on the antitumor activity of 2- methoxyestradiol (2-MeO-E2), 2-MeO-E2-induced cell cycle changes and apoptotic events were compared between the human colon carcinoma cell lines HCT116 (p53(+/+)) and HCT116 (p53(-/-)). When both cell types were exposed to 2-MeO-E2, a reduction in the cell viability and an(More)
Polyamines, a class of aliphatic amines, are active in the growth and development of bacteria, animals, and plants. To better understand their physiological role in plants, we used spermidine and the inhibitor of SAMDC to analyze the developmental patterns of roots and shoots fromArabidopsis seedlings and in-vhro carnation shoot cultures. We also monitored(More)
The electrical properties of La-silicate films grown by atomic layer deposition (ALD) on Ge substrates with different film configurations, such as various Si concentrations, Al2O3 interfacial passivation layers, and SiO2 capping layers, were examined. La-silicate thin films were deposited using alternating injections of the La[N{Si(CH3)3}2]3 precursor with(More)
A copper(II)-hydroperoxo complex, [Cu(Me(6)-tren)(OOH)](+) (2), and a copper(ii)-cumylperoxo complex, [Cu(Me(6)-tren)(OOC(CH(3))(2)Ph)](+) (3), were synthesized by reacting [Cu(Me(6)-tren)(CH(3)CN)](2+) (1) with H(2)O(2) and cumyl-OOH, respectively, in the presence of triethylamine. These intermediates, 2 and 3, were successfully characterized by various(More)
BACKGROUND This study was conducted to examine the quality and storage characteristics of yogurt containing antifungal-active lactic acid bacteria (ALH, Lacobacillus sakei ALI033) isolated from kimchi and cinnamon ethanol extract. The starter was used for culture inoculation (1.0 % commercial starter culture YF-L812 and ALH). RESULTS The antifungal(More)
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