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Tag: "introduced" at biology news

Researchers find gene that may be at root of potato blight

...gae. Over the last 75 years, potato breeders have introduced at least a dozen late blight-resistant genes into the cultivated potato. The researchers looked at one of these genes, R3a. Kamoun and his colleagues thought that if a potato plant contained R3a, that it could detect P. infestans manifestation by re...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...ion can be located, Kao reasons, perhaps it can be introduced into other antibiotic-producing bacteria to increa...sing the mutation could be found and then directly introduced into a new strain. Drug companies use chemicals and radiation to damage DNA and induce mutations. B...

Chemists synthesize molecule that helps body battle cancers, malaria

... adjuvant, QS-21A enhances the potency of antigens introduced in the body to elicit an immune response, allowing for lower vaccine doses with greater effectiveness. The molecule could therefore save patients money on expensive drugs and stretch limited supplies of antigens and vaccines. Gin and his collaborato...

Leprosy genome tells story of human migrations, French researchers report in Science

...originated in the Indian subcontinent and was then introduced to Europe by Greek soldiers returning from the Ind... South America, the study suggests. Europeans also introduced leprosy to North America. "Colonialism was extremely bad for parts of the world in terms of human h...

U of T researchers map role of Epstein-Barr virus in cancer

... a natural state of cell regulation. Once EBNA1 is introduced to cells, however, this protein interferes with natural cell regulation by binding to USP7 and preventing its interaction with the p53 protein. "Normally, p53 levels will increase in response to certain problems in the cell such as damaged DNA and t...

Key to elephant conservation is 'in the sauce'

...from important sources of human food, but has also introduced a viable cash crop to the economy of African nations. "Chilli peppers are unpalatable to crop-raiding mammals, so they give farmers an economically feasible means of minimizing damage to their investments," said Loki Osborn, project director for the...

First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology

... deposition to egg white. The stem cells were then introduced into chick embryos. At this stage of development, the embryonic stem cells can make significant contributions to the developing chicken. Resulting chimeras with large contributions from the stem cells lay eggs containing milligram amounts of antibody...

Insects develop resistance to engineered crops

...ne cotton in 2002. In the United States, companies introduced dual-gene cotton in 2003, but single-gene varieties remain on the market. "Single-gene Bt plants have provided good economic and environmental benefits, but from a resistance management standpoint they are inferior to dual-gene plants. U.S. regulato...

'Jumping genes' contribute to the uniqueness of individual brains

...ured neuronal precursor cells from rats. Then they introduced it into mice. Every time the engineered L1 element jumped, the affected cell started glowing green [WHY?]. "We were very excited when we saw green cells all over the brain in our mice," says research fellow and co-author M. Carolina N. Marchetto, "be...

Gene Bridges And Covalys To Develop Restriction-Enzyme-Free SNAP-tag Gene Fusion Kits

...ro with fluorescent or affinity probes. Kits to be introduced later this year by Covalys will allow for immobilization without prior purification, and purification of SNAP-tag fusion proteins. "We are particularly happy about this collaboration," said Christoph Bieri, Covalys' CEO. "The new cloning kits will g...

Cultural norms not unique to human societies

...l learning experiments. In the study, researchers introduced a naturalistic foraging task into three groups (two experimental and one control) to see if chimpanzees can learn by observation. While unseen by other chimpanzees, researchers taught a high-ranking female from each of the two experimental groups a d...

A slight difference and significant similarities

...rent genes for the formation of inulin sugars were introduced into the potato as these polysaccharides have a beneficial effect on human intestinal flora and are therefore a very desirable nutritional component. Potatoes containing inulin were developed at the Max Planck Institute of Molecular Plant Physiology ...

Engineered skin offers clues to melanoma development

...which melanoma naturally arises, the research team introduced one or more cancer-associated genes into human mel... of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous growth. But when a mutant form of Ras--produced by ...

Ibruprofen and other commonly used painkillers for treating inflammation may increase the risk of heart attack

...which melanoma naturally arises, the research team introduced one or more cancer-associated genes into human mel... of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous growth. But when a mutant form of Ras--produced by ...

Researchers use RNAi libraries to identify regulators of apoptosis and chemoresistance

...which melanoma naturally arises, the research team introduced one or more cancer-associated genes into human mel... of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous growth. But when a mutant form of Ras--produced by ...

Nose odors and mouth odors: The brain distinguishes

...nt brain regions according to whether the odor was introduced into the olfactory system through the mouth or thr... experiments to directly compare the same odorants introduced through the nose and the mouth. "Although several studies have examined brain responses to retronas...

Sleeping beauty plays a significant role in identifying cancer genes

...pecially designed Sleeping Beauty transposons were introduced into mouse DNA and made to jump around in the nucleus of mouse cells. Eventually the transposons jumped into cancer-causing genes and caused a tumor to form. By isolating and studying the genes from tumors that contained Sleeping Beauty, researchers ...

Leading scientists rank endangered dolphins, porpoises most in need of immediate action

...ween 1993 and 2003, fisheries in the United States introduced changes that reduced cetacean bycatch to one-third of its previous levels. But so far little of this success has been transferred to other countries, and in much of the rest of the world, progress on bycatch mitigation has been slow or nonexistent. ...

Canada's first embryonic stem cell lines

...ween 1993 and 2003, fisheries in the United States introduced changes that reduced cetacean bycatch to one-third of its previous levels. But so far little of this success has been transferred to other countries, and in much of the rest of the world, progress on bycatch mitigation has been slow or nonexistent. ...

Novel targets found for the development of drugs to complement, or replace, statins

...ween 1993 and 2003, fisheries in the United States introduced changes that reduced cetacean bycatch to one-third of its previous levels. But so far little of this success has been transferred to other countries, and in much of the rest of the world, progress on bycatch mitigation has been slow or nonexistent. ...

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