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Development of a loop-mediated isothermal amplification method for rapid mass-screening of sand flies for Leishmania infection

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タイトル: Development of a loop-mediated isothermal amplification method for rapid mass-screening of sand flies for Leishmania infection
著者: Nzelu, Chukwunonso O. 著作を一覧する
Gomez, Eduardo A. 著作を一覧する
Cáceres, Abraham G. 著作を一覧する
Sakurai, Tatsuya 著作を一覧する
Martini-Robles, Luiggi 著作を一覧する
Uezato, Hiroshi 著作を一覧する
Mimori, Tatsuyuki 著作を一覧する
Katakura, Ken 著作を一覧する
Hashiguchi, Yoshihisa 著作を一覧する
Kato, Hirotomo 著作を一覧する
キーワード: Leishmania
Sand fly
Malachite green
Loop-mediated isothermal amplification (LAMP)
発行日: 2014年 4月
出版者: Elsevier
誌名: Acta Tropica
巻: 132
開始ページ: 1
終了ページ: 6
出版社 DOI: 10.1016/j.actatropica.2013.12.016
抄録: Entomological monitoring of Leishmania infection in leishmaniasis endemic areas offers epidemiologic advantages for predicting the risk and expansion of the disease, as well as evaluation of the effectiveness of control programs. In this study, we developed a highly sensitive loop-mediated isothermal amplification (LAMP) method for the mass screening of sand flies for Leishmania infection based on the 18S rRNA gene. The LAMP technique could detect 0.01 parasites, which was more sensitive than classical PCR. The method was robust and could amplify the target DNA within 1 h from a crude sand fly template without DNA purification. Amplicon detection could be accomplished by the newly developed colorimetric malachite green (MG)—mediated naked eye visualization. Pre-addition of MG to the LAMP reaction solution did not inhibit amplification efficiency. The field applicability of the colorimetric MG-based LAMP assay was demonstrated with 397 field-caught samples from the endemic areas of Ecuador and eight positive sand flies were detected. The robustness, superior sensitivity, and ability to produce better visual discriminatory reaction products than existing LAMP fluorescence and turbidity assays indicated the field potential usefulness of this new method for surveillance and epidemiological studies of leishmaniasis in developing countries.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/54556
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 加藤 大智

 

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