Hematotoxicity of Bacillus thuringiensis as Spore-crystal Strains Cry1Aa, Cry1Ab, Cry1Ac or Cry2Aa in Swiss Albino Mice

The biosafety data submitted by Mahyco on bt cotton also carried similar results…the animal morbidity in AP, Maharashtra after feeding on bt cotton leaves also had similar symptoms….unfortunately indian scientific system never researched upon this.
http://gmoevidence.com/wp-content/uploads/2013/05/JHTD-1-104.pdf

In conclusion, results showed that the Bt spore-crystals   genetically modified to express individually Cry1Aa, Cry1Ab, Cry1Ac or Cry2A can cause some hematological risks to vertebrates, increasing their toxic effects with long-term exposure. Taking into account the increased risk of human and animal  exposures to significant levels of these toxins, especially through diet,our results suggest that further studies are required to clarify the mechanism involved in the hematotoxicity found in mice, and to establish the toxicological risks to non-target organisms,especially mammals, before concluding that these microbiological control agents are safe for mammals

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