中國醫藥大學機構典藏 China Medical University Repository, Taiwan:Item 310903500/32601
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 29490/55136 (53%)
造訪人次 : 1998799      線上人數 : 518
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    主頁登入上傳說明關於CMUR管理 到手機版
    請使用永久網址來引用或連結此文件: http://ir.cmu.edu.tw/ir/handle/310903500/32601


    題名: 臨床分離之金黃色葡萄球菌對fusidic acid 的抗藥性--台灣的初步研究
    Confirmation of resistance to fusidic acid among clinical isolates of Staphylococcus aureus-preliminary report from Taiwan
    作者: 黃梅;Mei Huang
    貢獻者: 醫學院臨床醫學研究所碩士班
    關鍵詞: 金黃色葡萄球菌;fusA;fusC;MRSA;fusidic acid
    日期: 2009
    上傳時間: 2010-09-29 12:17:18 (UTC+8)
    摘要: 中文摘要
    童綜合醫院所分離之抗methcillin 金黃色葡萄球菌對fusidic acid 的抗
    藥性從2001 年之3%上升到2007 年的12% ,為了瞭解這些金黃色葡
    萄球菌對fusidic acid 產生抗藥性的機轉,因此進行這個研究。從2007
    年12 月到2008 年08 月,全院241 株抗methicillin 之金黃色葡萄球
    菌中,收集傳統藥敏試驗顯示對fusidic acid 有抗藥性之不重複菌株
    共33 株。利用瓊脂稀釋法(agar dilution method)確定細菌對fusidic acid
    的最低抑菌濃度大於或等於2 mg/ml。再用多重聚合酶鏈鎖反應法
    (multiplex PCR)的方法鑑別引起fusidic acid 抗藥性的獲得性基因
    fusB、fusC。33 株對fusidic acid 有抗藥性的金黃色葡萄球菌中有23
    株具有fusC,其中一株同時具有fusC 及fusB。不具有fusB 及fusC 的
    10 株細菌,分別在fusA 基因的H457Y(9 株)、G556S(4 株)及R659L
    (2 株)發生突變。這33 株對fusidic acid 抗藥性的金黃色葡萄球菌
    均帶有type III SCCmec (Staphylococcal chromosomal cassette (SCC)
    mec)。多位基因座序列分型(multilocus sequence typing, MLST)顯示
    這33 株細菌均屬於ST239。脈衝式膠體電泳分析顯示這33 株細菌均
    屬於同一個主要流行病學株。本研究顯示對fusidic acid 抗藥性的金
    黃色葡萄球菌在童綜合醫院有增加趨勢,且屬於同一流行株,抗藥性基因以fusC 最常見,fusA 基因之突變位置以H457Y 最多。

    Abstract

    The number of Staphylococcus aureus with fusidic acid and methicillin

    resistance significantly increased from 2002 to 2007 in Tungs’ Taichung

    MetroHarbor Hospital, a 1405-bed district teaching hospital in central

    Taiwan. We conducted this study to investigate the mechanisms of

    resistance to fusidic acid in clinical isolates of methicillin-resistant S.

    aureus (MRSA). Thirty three clinical isolates of fusidic acid-resistant MRSA

    were collected between December 2007 and August 2008. Fusidic

    acid-resistant isolates were probed for the presence of the horizontally

    acquired resistance determinants fusB and fusC by a multiplex PCR assay.

    Mutations in the gene encoding the drug target (fusA) were detected by

    PCR and DNA sequencing. Resistant isolates were subjected to analysis

    by multilocus sequence typing (MLST) and SCCmec typing . The most

    common resistance determinant was fusC, found in 23 of the 33 isolates.

    One of 23 strains harboured fusB and fusC simutaneously. Ten strains

    without fusB or fusC have either fusA mutation in H457Y, G556S, or R659L.

    Molecular typing of SCCmec typing showed that all 33 isolates carried

    type III SCCmec elements. MLST showed this 33 isolates are ST239.

    Pusle field gelelectrophoresis analysis revealed a cluster with 8 different

    patterns. This study suggests a high prevalence of the fusC in in clinical

    isolates of fusidic acid-resiatant MRSA
    顯示於類別:[臨床醫學研究所] 博碩士論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML33檢視/開啟


    在CMUR中所有的資料項目都受到原著作權保護.

    TAIR相關文章

     


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋