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In 2000, transgenes were detected in local maize varieties (land-can center of origin for maize (Zea mays L.), and the genetic diversity that is maintained in open-pollinated landraces is recognized as an important genetic resource of great cultural value. The presence of transgenes in landraces was significant because trans-genic maize has never been(More)
Cleveland et al. (2005, Environ. Biosafety Res. 4: 197–208) offer useful suggestions for monitoring transgenes in landraces of maize, but we disagree with their statement that the scientific conclusions of our paper (Ortiz-are not justified. First, contrary to their perception, our survey was not designed to evaluate transgenes in the whole State of Oaxaca,(More)
Previous studies have established the presence of high numbers of activated T lymphocytes and "aberrant" expression of major histocompatibility complex class II antigens by endothelial and smooth muscle cells in human atherosclerotic lesions, implicating the involvement of a local cellular immune response. The identity of the antigen(s) eliciting this(More)
Heat shock proteins are evolutionarily highly conserved polypeptides that are produced under a variety of stress conditions to preserve cellular functions. A major antigen of tubercle bacilli of 65 kilodaltons is a heat shock protein that has significant sequence similarity and cross-reactivity with antigens of various other microbes. Monoclonal antibodies(More)
Molecular mimicry between viral antigens and host proteins was often suggested to be involved in induction of autoimmune diseases. In type 1 diabetes where pancreatic 13 cells are destroyed by autoimmune phenomena, a linear sequence homology between a major autoantigen, gluta-mate decarboxylase (GAD), and the 2C protein of coxsackie B4 was identified. In(More)
Letters Transgenic Maize in Mexico I n a recent article in BioScience, Soleri and colleagues (2006) cite our research and challenge our conclusions concerning the presence of transgenic maize in Oaxaca, Mexico (Ortiz-García et al. 2005a). As Soleri and colleagues stated, we concluded that the frequency of trans-genic seeds was near zero, or extremely rare,(More)
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