中國醫藥大學機構典藏 China Medical University Repository, Taiwan:Item 310903500/28857
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    题名: Determination of 1,3-, 1,6-, 1,8-dinitropyrene and 1-nitropyrene in airborne particulate by column liquid chromatography with electrochemical detection
    作者: Kuo, CT;Chen, HW
    贡献者: 公共衛生學院環醫所;China med Coll, Inst Environm Hlth, Taichung 404, Taiwan;Yuanpei Tech Coll, Dept Environm Engn & Hlth, Hsinchu, Taiwan
    日期: 2000
    上传时间: 2010-09-24 13:58:23 (UTC+8)
    出版者: ELSEVIER SCIENCE BV
    摘要: The effects of butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) on the N-acetyltransferase (NAT) activity and DNA adduct formation in PC-3 cells (human prostate tumor) was studied. PC-3 cells were placed into tissue culture flasks and grown in an incubator as cytosols and intact cells. The BHA or BHT were added to the cytosols and intact cells. The NAT activity in cytosol and intact PC-3 cells were measured by HPLC assaying exhibited for the amounts of N-acetyl-2-aminofluorene and N-acetyl-p-aminobenzoic acid, 2-aminofluorene and p-aminobenzoic acid. The NAT activity in PC-3 cells and cytosols were inhibited by BHA or BHT in a dose-dependent manner; that is, the higher the concentrations of BHA or BHT the higher inhibition of NAT activity. The NAT values of K-m and V-max from PC-3 cells were also decreased by BHA or BHT in both cytosols and intact cells. The data also demonstrated concomitant Exposure to BHA or BHT decreased AF-DNA adduct formation which was seen in the PC-3 cells, In addition, the formation of DNA adduct was decreased after BHA or BHT exposure. These findings suggested the usefulness of using human cultured PC-3 cells for assessing arylamine-induced DNA adduct formation. Furthermore, the findings illustrate how effectively BHA or BHT reduce the adduct formation. (C) 2000 Elsevier Science Ltd. All rights reserved.
    關聯: JOURNAL OF CHROMATOGRAPHY A 897(1月2日):393-397
    显示于类别:[環境醫學研究所(已停用)] 期刊論文

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