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              Research
              
              
              
              4.   
                  
                  
                              
                              Assessment of sprague dawley rats as biomodel in 
                              two antigenotoxicity assays - 
                              D. F Arencibia-Arrebola, L. A Rosario-Fernández, 
                              Y. E Suárez-Fernández, A Vidal-Novoa 
                              Vet World. 2011; 4(10): 455-460
               
              
              
              doi: 10.5455/veworld.2011.455-460
              
              
               
              
              
              
   
 
              
               
               
               
              
              
              Abstract
              
                              
                              
                              
                              The discovery of new drugs with antigenotoxic 
                              effect constitutes in our days a prioritized line 
                              of research. In this work was evaluated the 
                              response of Sprague Dawley rats (both sexes) 
                              against cyclophosphamide and bleomycin by means of 
                              alkaline comet assay of peripheral blood 
                              leukocytes and micronuclei in bone marrow cells 
                              assay as antigenotoxicy biomodel. Higher induction 
                              of the strand breaks (SB) and alkali-labile sites 
                              formation on DNA damage were obtained with the use 
                              of the cyclophosphamide and bleomycin, both in the 
                              design of 48 and 24 hr administration before the 
                              euthanasia. In the mironucleis assay was obtained 
                              high results of induction the micronucleus 
                              formation in bone marrow cells with 
                              cyclophosphamide was administered 48 and 24 hr 
                              before euthanasia in both sexes. These results are 
                              useful in studies of drugs evaluation that they 
                              have not been explored in to the in vivo 
                              antigenotoxicity environment. 
              
                              
              Keywords: 
                              Sprague Dawley, rats, biomodel, antigenotoxicity 
                              assays, micronucleus assay, comet assay.