Journal of Hematology & Thromboembolic Diseases
Open Access

Ingrid de Souza Freire

Publications

• Research Article
  Hematotoxicity of Bacillus thuringiensis as Spore-crystal Strains Cry1Aa, Cry1Ab, Cry1Ac or Cry2Aa in Swiss Albino Mice
  Author(s): Bélin Poletto Mezzomo, Ana Luisa Miranda-Vilela, Ingrid de Souza Freire, Lilian Carla Pereira Barbosa, Flávia Arruda Portilho, Zulmira Guerrero Marques Lacava and Cesar Koppe GrisoliaBélin Poletto Mezzomo, Ana Luisa Miranda-Vilela, Ingrid de Souza Freire, Lilian Carla Pereira Barbosa, Flávia Arruda Portilho, Zulmira Guerrero Marques Lacava and Cesar Koppe Grisolia
  
  Formulated and sporulated cultures of Bacillus thuringiensis (Bt) have been widely used against insect pests, but after the advent of genetically modified plants expressing δ-endotoxins, the bioavailability of Cry proteins has been increased. For biosafety reasons their adverse effects should be studied, mainly for non-target organisms. Thus, we evaluated, in Swiss albino mice, the hematotoxicity and genotoxicity of four Bt spore-crystals genetically modified to express individually Cry1Aa, Cry1Ab, Cry1Ac or Cry2A, administered alone by gavage with a single dose of 27 mg/Kg, 136 mg/Kg or 270 mg/Kg, 24 h, 72 h or 7 days before euthanasia. Binary combinations of these four spore-crystal proteins were also assayed at 270 mg/Kg with a single administration 24 h before euthanasia. Control mice received filtered water or cyclophosphamide at 27 mg/kg. For hematotoxicity evaluations, blo.. View More»
  DOI: 10.4172/2329-8790.1000104

  Abstract PDF

Relevant Topics