Semi-quantitative digital analysis of polymerase chain reactionelectrophoresis gel: Potential applications in low-income veterinary laboratories

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Antiabong, John F
Ngoepe, Mafora G
Abechi, Adakole S
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Veterinary World
Aim: The interpretation of conventional polymerase chain reaction (PCR) assay results is often limited to either positive or negative (non-detectable). The more robust quantitative PCR (qPCR) method is mostly reserved for quantitation studies and not a readily accessible technology in laboratories across developing nations. The aim of this study was to evaluate a semi-quantitative method for conventional PCR amplicons using digital image analysis of electrophoretic gel. The potential applications are also discussed. Materials and Methods: This study describes standard conditions for the digital image analysis of PCR amplicons using the freely available ImageJ software and confirmed using the qPCR assay. Results and Conclusion: Comparison of ImageJ analysis of PCR-electrophoresis gel and qPCR methods showed similar trends in the Fusobacterium necrophorum DNA concentration associated with healthy and periodontal disease infected wallabies (p≤0.03). Based on these empirical data, this study adds descriptive attributes (“more” or “less”) to the interpretation of conventional PCR results. The potential applications in low-income veterinary laboratories are suggested, and guidelines for the adoption of the method are also highlighted.
The articles in Veterinary World are open access articles licensed under the terms of the Creative Commons Attribution License ( which permits unrestricted use, distribution and reproduction in any medium, provided the work is properly cited.
applications,, digital image analysis, ImageJ software, polymerase chain reaction-electrophoresis, polymerase chain reaction amplicon, quantitative polymerase chain reaction
Antiabong JF, Ngoepe MG, Abechi AS (2016) Semiquantitative digital analysis of polymerase chain reaction-electrophoresis gel: Potential applications in low-income veterinary laboratories, Veterinary World, 9(9): 935-939.