Journal article
Bovine cysticercosis—Development of a real-time PCR to enhance classification of suspect cysts identified at meat inspection
Veterinary Parasitology, Vol.194(1), pp.65-69
2013
Abstract
Laboratory confirmation methods are important in bovine cysticerosis diagnosis as other pathologies can result in morphologically similar lesions resulting in false identifications. We developed a probe-based real-time PCR assay to identify Taenia saginata in suspect cysts encountered at meat inspection and compared its use with the traditional method of identification, histology, as well as a published nested PCR. The assay simultaneously detects T. saginata DNA and a bovine internal control using the cytochrome c oxidase subunit 1 gene of each species and shows specificity against parasites causing lesions morphologically similar to those of T. saginata. The assay was sufficiently sensitive to detect 1 fg (Ct 35.09 ± 0.95) of target DNA using serially-diluted plasmid DNA in reactions spiked with bovine DNA as well as in all viable and caseated positive control cysts. A loss in PCR sensitivity was observed with increasing cyst degeneration as seen in other molecular methods. In comparison to histology, the assay offered greater sensitivity and accuracy with 10/19 (53%) T. saginata positives detected by real-time PCR and none by histology. When the results were compared with the reference PCR, the assay was less sensitive but offered advantages of faster turnaround times and reduced contamination risk. Estimates of the assay's repeatability and reproducibility showed the assay is highly reliable with reliability coefficients greater than 0.94.
Details
- Title
- Bovine cysticercosis—Development of a real-time PCR to enhance classification of suspect cysts identified at meat inspection
- Authors/Creators
- L. Cuttell (Author/Creator) - The University of QueenslandH. Owen (Author/Creator) - The University of QueenslandA.E. Lew-Tabor (Author/Creator) - The University of QueenslandR.J. Traub (Author/Creator) - The University of Queensland
- Publication Details
- Veterinary Parasitology, Vol.194(1), pp.65-69
- Publisher
- Elsevier BV
- Identifiers
- 991005543690307891
- Copyright
- © 2013 Published by Elsevier B.V.
- Murdoch Affiliation
- Centre for Comparative Genomics
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.163 Parasitology - General
- 1.163.1106 Echinococcosis
- Web Of Science research areas
- Parasitology
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science