A Sensitive, Colorimetric, High-Throughput Loop-Mediated Isothermal Amplification Assay for the Detection of Plasmodium knowlesi

作者:Britton Sumudu*; Cheng Qin; Grigg Matthew J; William Timothy; Anstey Nicholas M; McCarthy James S
来源:The American Journal of Tropical Medicine and Hygiene, 2016, 95(1): 120-122.
DOI:10.4269/ajtmh.15-0670

摘要

The simian parasite Plasmodium knowlesi is now the commonest cause of malaria in Malaysia and can rapidly cause severe and fatal malaria. However, microscopic misdiagnosis of Plasmodium species is common, rapid antigen detection tests remain insufficiently sensitive and confirmation of P knowlesi requires polymerase chain reaction (PCR). Thus available point-of-care diagnostic tests are inadequate. This study reports the development of a simple, sensitive, colorimetric, high-throughput loop-mediated isothermal amplification assay (HtLAMP) diagnostic test using novel primers for the detection of P. knowlesi. This assay is able to detect 0.2 parasites/mu L, and compared with PCR has a sensitivity of 96% for the detection of P knowlesi, making it a potentially field-applicable point-of-care diagnostic tool.

  • 出版日期2016-7