| 
              
              
              Open Access  
Copyright: The authors. This article is an open access 
article licensed under the terms of the Creative Commons Attribution License 
 
 
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, 
distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Research 
(Published 
online: 13-10-2014) 
              
              11. 
              Detection of African swine fever virus
              from formalin fixed and non-fixed tissues by polymerase chain 
              reaction - 
              P. D. Luka, A. R. 
              Jambol and B. Yakubu 
              
              Veterinary World, 7(10): 811-815   
              
   
                
                
doi: 
              10.14202/vetworld.2014.811-815 
                  P. D. 
              Luka: 
              
              Applied Molecular Biology Department, National Veterinary Research 
              Institute, Vom, Plateau State, Nigeria; pamluka08@gmail.com A. R. 
              Jambol: 
              
              Applied Molecular Biology Department, National Veterinary Research 
              Institute, Vom, Plateau State, Nigeria;
              
              
              dtrufriend@yahoo.com B. 
              Yakubu; Applied Molecular Biology Department, National 
              Veterinary Research Institute, Vom, Plateau State, Nigeria;
              
              minitsayaks@yahoo.com   Received: 
              17-06-2014, Revised: 08-09-2014, Accepted: 11-09-2014, Published 
              online: 13-10-2014   
              
              
              Corresponding author:
              
              P. D. Luka, e-mail: pamluka08@gmail.com 
 
              Abstract 
 Aim:
              Formalin fixing and paraffin embedding of tissue samples is 
              one of the techniques for preserving the structural integrity of 
              cells for a very long time. However, extraction and analysis of 
              genomic material from formalin fixed tissue (FFT) remains a 
              challenge despite numerous attempts to develop a more effective 
              method. The success of polymerase chain reaction (PCR) depends on 
              the quality of DNA extract. 
              Materials and Methods: Here we assessed the conventional 
              method of DNA extraction from FFT for African swine fever virus
              (ASFV) detection. The modified conventional method gave a 
              higher quality DNA when compared with commercially available DNA 
              extraction kits (QIAamp® DNA Mini Kit, DNeasy®
              Blood and Tissue Kit, and ZR Genomic DNA™
              Tissue MiniPrep). 
              Results: An average A260/A280 DNA purity of 0.86-1.68 and 
              3.22-5.32 μg DNA/mg for formalin fixed and non-fixed tissues, 
              respectively using a conventional method. In a reproducible and 
              three times repeat PCR, the ASFV DNA expected product size of 278 
              bp was obtained from the DNA extract of the conventional method 
              but not from the DNA extract of the commercial kits. 
              Conclusion: The present study has demonstrated that the 
              conventional method extracts ASFV genome better than commercial 
              kit. In summary, the commercial kit extraction appeared not 
              suitable to purify ASFV DNA from FFT. We, therefore, recommend 
              that the use of the conventional method be considered for African 
              swine fever DNA extraction from FFT.  
              Keyword: African swine fever, detection, formalin fixed, 
              non-formalin fixed, polymerase chain reaction. 
 
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