Isolation and identification of Acanthamoeba species from thermal spring environments in southern Taiwan

被引:25
作者
Kao, Po-Min [1 ]
Hsu, Bing-Mu [1 ]
Chen, Nai-Hsiung [1 ]
Huang, Kuan-Hao [1 ]
Huang, Shih-Wei [1 ,2 ]
King, Kuang-Liang [3 ,4 ]
Chiu, Yi-Chou [4 ,5 ]
机构
[1] Natl Chung Cheng Univ, Dept Earth & Environm Sci, Minhsiung Township 621, Chiayi County, Taiwan
[2] Cheng Shiu Univ, Super Micro Mass Res & Technol Ctr, Kaohsiung, Taiwan
[3] Taipei Vet Gen Hosp, Dept Surg, Taipei, Taiwan
[4] Natl Yang Ming Univ, Dept Surg, Sch Med, Taipei 112, Taiwan
[5] Cheng Hsin Gen Hosp, Dept Surg, Taipei, Taiwan
关键词
Acanthamoeba spp; PCR; Acanthamoeba keratitis; Granulomatous amoebic encephalitis; RECREATION AREAS; AMEBIC ENCEPHALITIS; PCR; INHIBITION; GENOTYPE;
D O I
10.1016/j.exppara.2012.02.008
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Acanthamoeba species are free-living amoebae found in a range of environments. Within this genus, a number of species are recognized as human pathogens, potentially causing Acanthamoeba keratitis, granulomatous amoebic encephalitis, and chronic granulomatous lesions. In this study, 60 water samples were taken from four thermal spring recreation areas in southern Taiwan. We detected living Acanthamoeba spp. based on culture-confirmed detection combined with the molecular taxonomic identification method. Living Acanthamoeba spp. were detected in nine (15%) samples. The presence or absence of Acanthamoeba spp. in the water samples depended significantly on the pH value. The most frequently identified living Acanthamoeba genotype was T15 followed by T4, Acanthamoeba spp., and T2. Genotypes T2, T4, and T15 of Acanthamoeba, are responsible for Acanthamoeba keratitis as well as granulomatous amoebic encephalitis, and should therefore be considered a potential health risk associated with human activities in thermal spring environments. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:354 / 358
页数:5
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