中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (4): 8-276.

• 论著 • 上一篇    下一篇

自然感染诺氏疟原虫患者血片样本PCR鉴定

郑徽1,2;朱淮民1 ;宁北芳1;李翔宇1   

  1. 1 第二军医大学病原生物学教研室, 上海200433; 2 解放军第101医院肾内科, 无锡 214000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-08-30 发布日期:2006-08-30
  • 通讯作者: 朱淮民

Molecular Identification of Naturally Acquired Plasmodium knowlesi Infection in a Human Case

ZHENG Hui 1,2;ZHU Huai-min 1;NING Bei-fang 1;LI Xiang-yu 1   

  1. 1 Department of Etiological Biology, the Second Military Medical University, Shanghai 200433, China; 2 Department of Nephrology, No.101 Hospital of PLA, Wuxi 214000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-08-30 Published:2006-08-30
  • Contact: ZHU Huai-min

摘要: 目的 对云南省1例诊断为“间日疟”患者血片中形态不典型的疟原虫虫种进行分子生物学鉴定。 方法 分别抽提待鉴定血片和已知感染虫种的4种疟原虫(间日疟原虫、恶性疟原虫、诺氏疟原虫、食蟹猴疟原虫)血片疟原虫基因组DNA,再根据疟原虫小核糖体亚基(SSU rRNA)序列合成疟原虫属特异性引物,以及恶性疟原虫、间日疟原虫、诺氏疟原虫种特异性引物,然后对包括待鉴定血片在内的疟原虫DNA分别进行PCR鉴定。 结果 用诺氏疟原虫特异性引物从待鉴定血片DNA中扩增出约150 bp条带,测序结果表明该序列与诺氏疟原虫SSU rRNA序列完全一致。 结论 云南省该例疟疾患者感染了猴疟原虫———诺氏疟原虫。

关键词: 诺氏疟原虫, 人体自然感染, SSU rRNA

Abstract: Objective To confirm the diagnosis of a human case with atypical vivax-malaria from Yunnan Province by molecular technique. Methods DNA was extracted from blood films of unidentified sample, and of four known Plasmodium species (P. vivax, P. falciparum, P. knowlesi, and P. cynomolgi). A DNA-based diagnosis with the poly-merase chain reaction (PCR) method targeting the small subunit ribosomal RNA (SSU rRNA) genes of genus- and species-specific (two human malaria species and P. knowlesi) was introduced. Results The PCR amplification with primer pair specific for P. knowlesi produced a single fragment of 150 bp. Sequence analysis showed that the amplified fragment was identical to the sequence of P. knowlesi. Conclusion The patient was naturally infected with P. knowlesi.

Key words: Plasmodium knowlesi, Natural infection, Human, SSU rRNA