頁籤選單縮合
題 名 | Molecular Subtyping of Salmonella Enterica Serovar Paratyphi A from Southeast Asia=東南亞地區副傷塞A型菌之分子流行病學分型 |
---|---|
作 者 | 潘子明; 林建生; 王添貴; 蔡金來; 何淑渶; 李智隆; | 書刊名 | 藥物食品分析 |
卷 期 | 6:3 1998.09[民87.09] |
頁 次 | 頁573-578 |
分類號 | 414.83 |
關鍵詞 | 副傷寒A型菌; 脈場膠電泳法; 限制酵素; 東南亞; S. paratyphi A; Pulsed-field gel electrophoresis; Restriction endonucleases; Southeast asia; |
語 文 | 英文(English) |
中文摘要 | 1987至1996年間。本單位之沙門氏菌研究室共分離出本土與東南亞之副傷寒A 型菌(Salmonella paratyphi A)計42株,其中大部分係境外移入,此與近年來國人出國頻 繁有關。本土性之副傷寒案例以往罕見,但近年來已有明顯增加之警訊。為確保國人健康及 防疫追蹤調查之需求,除傳統之血清分類法外,副傷寒A型菌之分子流行病學分型值得加以 探討。本研究以脈場膠電泳法應用於此菌血清型之下的分型,經由四種不同限制酵素之切割, 找出最具分型性之限制酵素Avr Ⅱ,作為日後例行檢驗之參考。以AvrⅡ限制酵素之切割, 可將來自本土及東南亞之42株副傷寒A型菌分成三種親族群(clones),但其中之一親族群 佔85.7%,比率高且在東南亞分布頗廣。此乃表示副傷寒A型菌在演化過程中變異性少,故 基因組(genomic)DNA相似性很高。 |
英文摘要 | From 1987 to 1996, forty-two isolates of Salmonella paratyphi A were collected from Taiwan, China and other Southeast Asian countries. Pulsed-field gel electrophoresis (PFGE) was used to differentiate the genomic DNA of these isolates with four different restriction enzymes, Xba I, Not I, Spe I and Avr Ⅱ. Based on the PFGE profiles obtained, Avr Ⅱ allowed the most discriminatory results among these restriction endonucleases. By Avr Ⅱ digestions, 42 isolates of S. paratyphi A were differentiated into three clones. The predominant clone accounted for 85.7% of the tested strains (36 in 42 isolates) and was found in many countries of Southeast Asia. Thus, S. paratyphi A appears to have limited genetic diversity in evolutionary process. |
本系統中英文摘要資訊取自各篇刊載內容。