中国寄生虫学与寄生虫病杂志 ›› 2023, Vol. 41 ›› Issue (5): 640-643.doi: 10.12140/j.issn.1000-7423.2023.05.018

• 研究简报 • 上一篇    下一篇

海口市湿地公园褐云玛瑙螺广州管圆线虫感染情况调查

黄梦宇(), 陈帝坤, 陈慧儒, 范梦培, 柳俊有, 权云帆*()   

  1. 海南医学院热带医学院,海口 571199
  • 收稿日期:2023-05-21 修回日期:2023-07-19 出版日期:2023-10-30 发布日期:2023-11-06
  • 通讯作者: *权云帆(1989-),女,硕士,实验师,主要从事医学检验技术的研究。E⁃mail:quanyunfannpc@126.com
  • 作者简介:黄梦宇(2001-),女,本科在读,从事医学检验技术专业相关研究,E⁃mail:1428171419@qq.com
  • 基金资助:
    海南医学院大学生创新创业训练计划项目(X202211810029);海南省高等学校教育教学改革研究项目(Hnjg2021-67)

Investigation on Angiostrongylus cantonensis infection in Achatina fulica in Haikou wetland park

HUANG Mengyu(), CHEN Dikun, CHEN Huiru, FAN Mengpei, LIU Junyou, QUAN Yunfan*()   

  1. School of Tropical Medicine, Hainan Medical University, Haikou 571199, China
  • Received:2023-05-21 Revised:2023-07-19 Online:2023-10-30 Published:2023-11-06
  • Contact: *E-mail: quanyunfannpc@126.com
  • Supported by:
    Innovation and Entrepreneurship Project of Hainan Medical University(X202211810029);Research Project on Educational and Teaching Reform in Higher Education Institutions of Hainan Province(Hnjg2021-67)

摘要:

为了解海口市湿地公园褐云玛瑙螺感染广州管圆线虫情况,分别于2021、2022年3—7月采集海口市某湿地公园两岸的公共绿地和乱石下的螺类并鉴定螺种,鉴定为褐云玛瑙螺的螺进行压片后镜检肺囊,“肺检法”检测褐云玛瑙螺的广州管圆线虫感染情况。提取阳性螺广州管圆线虫基因组DNA进行PCR扩增核糖体大亚基rRNA基因,测序后进行BLAST比对。2021—2022年从调查点共采集到褐云玛瑙螺207只,其中23只广州管圆线虫阳性,阳性率为11.11%(23/207)。PCR扩增结果显示在约400 bp处有特异性条带,符合预期大小。BLAST比对结果显示,PCR扩增产物测序结果与NCBI基因库中广州管圆线虫基因序列(GenBank序列号:AY295821.1、FM207759.1、AM039758.1和ON747308.1)的一致性为98.49%~99.75%。结果提示该湿地公园存在广州管圆线虫阳性的褐云玛瑙螺,接触、进食生或半生的螺肉存在较高的感染风险。

关键词: 褐云玛瑙螺, 广州管圆线虫, 肺检法

Abstract:

To investigate the prevalence of Angiostrongylus cantonensis infection in Achatina fulica in a wetland park of Haikou, A. fulica were randomly collected from a public green land and underneath the ripraps of the wetland park during March to July of 2021 and 2022. A. cantonensis infection among the A. fulica was determined by lung examination. A. cantonensis rRNA gene was amplified by PCR and the sequence was compared by BLAST analysis. The result suggested 23 of 207 (11.11%) A. fulica were infected with A. cantonensis. The amplified 400 bp-DNA sequence was close to the reference sequences of A. cantonensis in the NCBI GenBank (Accession number: AY295821.1, FM207759.1, AM039758.1 and ON747308.1). The sequence similarity ranged from 98.49% to 99.75%. In conclusion, A. cantonensis were found in A. fulica collected from the wetland park of Haikou. This will be provide a infection risk upon touching or eating the raw or partially cooked A. fulica.

Key words: Achatina fulica, Angiostrongylus cantonensis, Lung examination method

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