https://scholars.lib.ntu.edu.tw/handle/123456789/633341
標題: | A Field-Deployable Insulated Isothermal PCR (iiPCR) for the Global Surveillance of Toxoplasma gondii Infection in Cetaceans | 作者: | Hsieh, Meng Jung WEI-CHENG YANG |
關鍵字: | Cetaceans; Field-deployed; Insulated isothermal PCR; Pollution; Toxoplasma | 公開日期: | 1-二月-2022 | 卷: | 12 | 期: | 4 | 來源出版物: | Animals | 摘要: | Toxoplasmosis is a zoonotic disease with veterinary and public health importance world-wide. Toxoplasma gondii infection in cetaceans is an indicator of land-to-sea oocyst pollution. However, there is a critical knowledge gap within the distribution of the T. gondii infection in cetaceans. To facilitate the global surveillance of this important zoonotic pathogen, we developed a field-deployable duplex insulated isothermal PCR (iiPCR) with automated magnetic bead-based DNA extraction for the on-site detection of T. gondii in stranded cetaceans. It targets the B1 gene of T. gondii combined with β2-microglobulin (B2M) gene of cetaceans as an internal control. Compared with the conventional qPCR assay, B1/B2M duplex iiPCR assay showed comparable sensitivity (21~86 bradyzoites in 25 mg of tissue) to detect spike-in standard of T. gondii DNA in cerebrum, cerebellum, skeletal muscle and myocardium tissues. Moreover, the overall agreement between the duplex iiPCR and qPCR was in almost perfect agreement (92%; 95% CI: 0.78–0.90; κ = 0.84) in detecting a synthetic spike-in standards. The B1/B2M iiPCR assay coupled with a field-deployable system provides a prompt (~1.5 h), feasible, highly sensitive and specific on-site diagnostic tool for T. gondii in stranded cetaceans. This platform provides one approach to evaluating aquatic ecosystem health and developing early warnings about negative impacts on humans and marine animals. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124994234&doi=10.3390%2fani12040506&partnerID=40&md5=86aa6a8f4ebb005d01d9cebf29c06685 https://scholars.lib.ntu.edu.tw/handle/123456789/633341 |
ISSN: | 2076-2615 | DOI: | 10.3390/ani12040506 |
顯示於: | 獸醫學系 |
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