Tag: "transgenic" at biology news
Insects develop resistance to engineered crops
... protein might play a role in insect resistance to transgenic
crops expressing two insecticidal proteins. "Our findings suggest that concurrent use of single- and dual-gene Bt plants can put the dual-gene plants at risk if single-gene plants are deployed in the same area simultaneously," said Anthony Shelton, ...
Scientists find microRNAs regulate plant development
...Research in Cambridge, MA report experiments using transgenic
Arabidopsis plants that produce a version of ARF17...ose of Bartel's group, Chua and colleagues created transgenic
Arabidopsis plants that produce a version of NAC1 that is resistant to microRNA-mediated cleavage. C...
First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology
...ction compared to either plant systems or to other transgenic
animal systems," said Robert Kay, Ph.D., Origen Th..." "Furthermore," Dr. Kay continued, "unlike other transgenic
animal systems, the time from antibody identification to production in eggs can be as short as 8 mon...
Montreal researchers probe the genetic basis of memory
... that mice bred without the GCN2 protein (known as transgenic
mice) acquire new information that does not fade as easily as that of normal mice. This new information is more frequently converted into long-term memory. The researchers concluded that GCN2 may prevent new information from being stored in long-term...
U. Iowa researchers improve Huntington's disease symptoms in mice
...the mutant protein. The genetically engineered or transgenic
mouse model used by the UI team carries a section of the human HD gene. These mice quickly develop movement and coordination abnormalities and they die young. Aggregates, or clumps of protein, also develop in certain brain cells. Davidson explained ...
Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance
...e phenomena. They used this information to develop transgenic
mice that carried the candidate region derived from the wild haplotype. When the transgenic
region segregated with the t haplotype, the researchers noted that males carrying two copies of the ...
New tumor-suppressor gene discovered
... flies with the clearly defective mats gene. "With transgenic
techniques, we were able to introduce a normal mats gene into the chromosomes of flies whose mats gene was mutated," Lai explains. "We found that the line of flies with this additional normal mats gene no longer developed tumors. The researchers als...
Genetic defects give the immune system the green light to attack the pancreas
... technologies, using cultures of thymus cells from transgenic
mice, together with DNA chips and “genome scans.?They compared non-obese diabetic (NOD) mice, which researchers elsewhere had shown to have the tolerance defect, with diabetes-resistant controls. They looked for regions where the data from the DNA ch...
Silence the gene, save the cell: RNA interference as promising therapy for ALS
...EPFL) in Switzerland have used RNA interference in transgenic
mice to silence a mutated gene that causes inherit...vels of mutant SOD1 protein in the spinal cords of transgenic
ALS mice (mice bred to express the human SOD1 gene). Short strands of RNA that targeted multiple mut...
Transgenic plants remove more selenium from polluted soil than wild plants, new tests show
...sorb more contaminants, researchers found that the transgenic
plants handily beat out their wild-type counterpar...ironmental Science and Technology, show that three transgenic
lines of the Indian mustard plant, Brassica juncea, absorbed two to four times more selenium from co...
Hirsute Or Hairless? Two Proteins May Spell The Difference
...onged approach—involving gene expression analysis, transgenic
mice, and cell cultures—to study how epithelial bu...icially sustaining Snail expression in the skin of transgenic
mice caused abnormal levels of cell proliferation in the epidermis and reduced cell adhesion. Worki...
Novel Enzyme Shows Potential As An Anti-HIV Target
...ter is removed. Experiments using cells taken from transgenic
mice lacking SIRT1 demonstrated that introducing human SIRT1 enzymes increased Tat’s transcriptional effects in a dose-dependent manner, while treating cells with the small molecule HR73, a derivative of a molecule that inhibits the yeast version of ...
Fox Chase Cancer Center scientists identify immune-system mutation
...nician Yi Zhang; Xiang Hua, manager of Fox Chase's transgenic
mouse facility; Fox Chase research associate Emmanuelle Nicolas, Ph.D.; and Weihong Xu, Ph.D., and Bruce A. Roe, Ph.D., both of the University of Oklahoma's department of chemistry and biochemistry. ...
Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer
...repairof these lesions. The researchers found that transgenic
mice bearingthe CPD photolyase transgene, in contrast to mice bearing the 6-4PPphotolyase transgene, showed superior resistance to the deleteriouseffects of UV irradiation. Not only could CPD photolyase transgenicanimals withstand doses of UV light t...
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