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Efficacy of magnetic capture in comparison with conventional DNA isolation in a survey of Toxoplasma gondii in wild house mice
J. Juránková, L. Hůrková-Hofmannová, J. Volf, V. Baláž, J. Piálek,
Language English Country Germany
Document type Comparative Study, Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Genetic Techniques standards MeSH
- Limit of Detection MeSH
- Magnetic Phenomena * MeSH
- Mice MeSH
- Polymerase Chain Reaction standards MeSH
- DNA, Protozoan analysis isolation & purification MeSH
- Toxoplasma genetics MeSH
- Toxoplasmosis, Animal diagnosis MeSH
- Animals MeSH
- Check Tag
- Mice MeSH
- Female MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Comparative Study MeSH
Toxoplasma gondii is a zoonotic parasite with a world-wide distribution. House mice (Mus musculus) play an important role as a reservoir host in the parasite life cycle. However, their detection in mouse brain is limited because the host potentially harbours only a few tissue cysts. In order to improve the diagnosis, we tested a novel protocol for T. gondii detection in mice and compared this technique to a standard PCR-based protocol using a commercial kit for DNA isolation. Efficacy of magnetic capture for isolation of T. gondii DNA from whole host brains was tested in brain samples of laboratory mice spiked with 1 up to 10(4) tachyzoites. Real-time PCR revealed that even 1-5 tachyzoites can be detected after magnetic capture. Also this method is suitable to quantify parasite numbers in mouse brains with more than 10 tachyzoite equivalents. To assess the two techniques in wild mice, we employed a dataset consisting of 243 individuals. The prevalence of T. gondii detected by magnetic capture and qPCR and by commercial isolation and PCR was 1.2% and 0%, respectively. The magnetic capture and quantitative PCR seems to be a highly sensitive and specific diagnostic method for both laboratory research and wild population surveys.
References provided by Crossref.org
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- $a Juránková, Jana $u Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno, Czech Republic. Electronic address: yanniska@seznam.cz.
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