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2009 OCT 19 ... against a tumor. This addresses a problem that may occur when tumors mutate away from an immune attack. Escape mutations can develop over time and prevent an ...
2009 SEP 21 ... to stress and the prevention of devastating diseases." How do plant genes mutate? All living things are constantly exposed to stressors that can provoke ...
2009 OCT 12 ... static portions of the virus, say the researchers. Noroviruses, like influenza viruses, mutate readily and evolve rapidly, explains Dr. Green. If vaccines against noroviruses become ...
Subject: NIH/National Institute of Allergy and Infectious Diseases
2009 OCT 5 ... defend themselves - if they were facing only one target. The problem: HIV's ability to mutate, disguising itself enough to get away from the antibodies. HIV eventually wears down the ...
2009 OCT 28 ... Dictyostelium discoideum, amoebas that thrive on rotting vegetation in forest soil, mutate to keep "cheaters" at bay, forcing them out of the reproductive chain. ...
2009 NOV 16 ... of time - or will it be confounded by genetic drift, the constant tendency of genes to mutate spontaneously over time? Until recently, researchers have had little ...
2009 SEP 21 ... the surface antigens of the virus but unfortunately it is the surface antigens that mutate most of the time requiring a new vaccine to be developed. Our product works ...
2009 OCT 13 ... mutation mediated by the transposon, IS5 in Escherichia coli. crp deletion mutants mutate specifically to glycerol utilization (Glp(+)) at rates that are enhanced by glycerol or ...
2009 SEP 28 ... an important branch of the immune system, killing virus-infected cells. Many viruses can mutate so that infected cells are not killed by CTL anymore." "This escape can ...
2009 SEP 22 ... experienced mild symptoms. However, the researchers are concerned that the virus could mutate to bind more strongly to these receptors. "If the flu virus mutates in the ...
2009 OCT 5 ... mutants are resistant also to levamisole and pyrantel and alter the same genes that mutate to levamisole resistance. Furthermore, we demonstrate that eleven C. elegans mutants ...
2009 NOV 16 ... with truncated Pseudomonas exotoxin (PE38). Site-specific mutagenesis was used to mutate amino acids in seven key epitopic toxin regions that dictate B-cell generation of ...
2009 OCT 6 ... potentially act antagonistically to PKA were assessed. A reverse genetics approach to mutate the catalytic subunits of calcineurin (CN, protein phosphatase [PP]2B) and PP2A in U. ...
2009 OCT 5 ... of CYP2C9*3 variant. The results obtained show that above 40% of our samples carry a mutate allele, which can result in a poor metabolization of low therapeutic index drugs as oral ...
2009 OCT 19 ... "Human APOBEC3 enzymes are cellular DNA cytidine deaminases that inhibit and/or mutate a variety of retroviruses, retrotransposons, and DNA viruses. Here, we report a detailed ...
2009 SEP 8 ... vulgaris involved in the interaction with PGs, we used site-directed mutagenesis to mutate the residues D131, D157 and D203, and tested for the inhibitory activity of the mutant ...
2009 OCT 19 ... serious flu complications. Influenza A is a virus that can replicate and mutate very rapidly. Reassortments of viral components from human, swine, and avian influenza ...
2009 NOV 16 ... much is known about the qualitative aspects of evolutionary theory - that organisms mutate and these mutations are selected by the environment and are gradually absorbed by the ...
2009 NOV 23 ... DNA within cells, the reaction is damaging and can cause the cell to die or the DNA to mutate. The results of this study suggest that antioxidants, such as those contained within ...
2009 NOV 16 ... However, HIV not only replicates itself quickly on infection but also has the ability to mutate rapidly, swiftly disguising its fingerprints to allow it to hide from killer T-cells. ...
