| 
              
              
              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: 
              31-10-2015) 
              
              17. 
              
              Evaluation of Spirulina platensis 
              extract as natural antivirus against foot and mouth disease virus 
              strains (A, O, SAT2) - 
              Hind M. Daoud and Eman 
              M. Soliman 
              
              Veterinary World, 8(10): 1260-1265   
              
   
                
                
doi: 
              10.14202/vetworld.2015.1260-1265   
              Hind M. Daoud: 
              Department of Foot and Mouth, Veterinary Serum and Vaccine 
              Research Institute, Abbassia, Cairo, Egypt; hind.doud@hotmail.com 
              
              Eman M. Soliman: Central Laboratory 
              for Evaluation of Veterinary Biologics, Abbassia, Cairo, Egypt;
              emansoliman1880@gmail.com 
               
              Received: 22-05-2015, Revised:
              05-09-2015, Accepted:
              15-09-2015, Published:31-10-2015   
              
              
              Corresponding author: 
              Eman M. Soliman, 
              e-mail: emansoliman1880@gmail.com 
 
              Citation:Daoud HM, Soliman EM 
              (2015) Evaluation of Spirulina platensis extract as natural 
              antivius against foot and mouth disease virus strains (A, O, 
              SAT2), Veterinary World 8(10): 1260-1265. 
 
              Abstract 
 Aim:
              This work was aimed to document the antiviral activates of 
              Spirulina platensis extract against foot and mouth disease 
              virus (FMDV) different types to evaluate its replication in Baby 
              Hamster Kidney (BHK) cell culture and in baby mice.  
              Materials and Methods: Cytotoxicity assay studied for S. 
              platensis extract on BHK cells to determine the non-toxic 
              dose. The non-toxic dose of Spirulina extract was mixed with each 
              type of FMDV (A, O, SAT2). Then 10-fold dilutions from each 
              mixture were done. FMDV titer for each type of treated FMDV was 
              calculated to evaluate the antiviral activity of the Spirulina 
              extract against FMDV. Furthermore, old baby Swiss mice were 
              inoculated with 0.1 ml intraperitonially from the mixture of FMDV 
              different types and different concentration of Spirulina extracts. 
              After 48 h post inoculation, all the baby mice examined to 
              evaluate the antiviral action of Spirulina extract.  
              Results: The result showed that the non-toxic doses of S. 
              platensis (50 ug/ml) revealed 35.7%, 28.5%, and 31% reductions 
              in FMDV titers Type O, A, and SAT2 on BHK cells, respectively. The 
              same non-toxic dose gave 50% of the inhibitory concentration in 
              baby mice without cytotoxic effect.  
              Conclusion: This study confirmed the 
              biological activity of the ethanol extract of S. platensis 
              against FMDV Types O, A, and SAT2. From the results, S. 
              platensis could be useful as antiviral lead to limitation of 
              infection among animals during outbreaks but further studies need 
              to evaluate the S. platensis on experimental or natural 
              infected farm animals to establish the effective dose side 
              affected period of treatment of S. platensis.  
              Keywords: antiviral, foot and mouth disease 
              virus, Spirulina platensis. 
 
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