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Last September, the causal link between cancer and genetically modified food was confirmed in a French study, the first independent long-term animal feeding study not commissioned by the biotech corporations themselves. The disturbing details can be found here: New Study Finds GM Corn and Roundup Causes Cancer In Rats

Now, a new study published in the

Journal of Hematology & Thromboembolic Diseases indicates that the biopesticides engineered into GM crops known as Bacillus Thuringensis (Bt) or Cry-toxins, may also contribute to blood abnormalities from anemia to hematological malignancies (blood cancers) such as leukemia.[i]

A group of scientists from the Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia/DF, Brazil set out to test the purported human and environmental biosafety of GM crops, looking particularly at the role that the Bt toxin found within virtually all GM food crops plays on non-target or non-insect animal species.

The research was spurred by the Brazilian Collegiate Board of Directors of the National Sanitary Surveillance Agency (ANVISA), who advocated in 2005 for evaluations of toxicity and pathogenicity of microbiological control agents such as Bt toxins, given that little is known about their toxicological potential in non-target organisms, including humans.

While Bacillus Thurigensis spore-crystals have been used since the late 1960’s in agriculture as a foliar insecticide, it was only after the advent of recombinant DNA biotechnology that these toxin-producing genes (known as delta endotoxins) were first inserted into the plants themselves and released into commercial production in the mid-90’s, making their presence in the US food supply and the bodies of exposed populations ubiquitous.

What the new study revealed is that various binary combinations and doses of Bt toxins are capable of targeting mammalian cells, particularly the erythroid (red blood cell) lineage, resulting in red blood cell changes indicative of significant damage, such as anemia. In addition, the study found that Bt toxins suppressed bone marrow proliferation creating abnormal lymphocyte patterns consistent with some types of leukemia.