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Tag: "exploiting" at biology news

Novel Enzyme Shows Potential As An Anti-HIV Target

... its genes can be transcribed. Adept as HIV is in exploiting its host’s molecular resources, the virus can’t establish a foothold without the services of its skeleton crew. The HIV transcription factor Tat (“transactivator of transcription?, for example, is an essential regulator of HIV gene expression. Withou...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

...g over cells that researchers have long dreamed of exploiting the specific attraction viruses have to certain cells and using it as a homing device to seek and enter cancer cells. The measles virus became the focus of this vision several years ago when the surprising finding was made that the measles strain us...

The evolutionary triumph of flower power

...satisfaction. "Our hypothesis is that flowers are exploiting an emotional niche. They make us happy," McGuire says. "Because they are a source of pleasure ?a positive emotion inducer ?we take care of them. In that sense they're like dogs. They are the pets of the plant world." Psychologist Haviland-Jones had ...

Gladstone investigators discover how resting T cells avoid HIV infection

...es that might lead to cancer. "The possibility of exploiting the natural and potent antiviral properties of A3G to control HIV infection is very exciting," says Greene. "We have learned a great deal from our studies of how the resting CD4 T cell resists HIV. Now, the challenge is for scientists at the Gladston...

Researchers discover mechanism for multiplying adult stem cells

...ay of looking at adult stem cells and for possibly exploiting their therapeutic potential," says Jaenisch, who also is a professor of biology at MIT. This research focuses on a gene called Oct4, a molecule that is known to be active in the early embryonic stage of an organism. Oct4's primary function is to kee...

Mass production of human papillomavirus could lead to gains against cervical cancer

Researchers may be on the verge of exploiting the vulnerabilities of a virus that causes cervical cancer, thanks to a newly developed technique that enables scientists to mass-produce human papillomavirus (HPV) in the laboratory. HPV, which exists in more than 100 forms, is the most prevalent s...

Discovery of T-cell 'traffic control' boosts new drug promise

...cle walls develop abnormally, Goetzl says. "Fully exploiting this approach for treatment of autoimmune diseases and transplant rejection will depend on developing new drugs that block only the immune type of S1P receptor," he adds. "But early studies by a number of researchers are quite promising." Progress w...

New nanosensor uses quantum dots to detect DNA

...eering Institute at Johns Hopkins, led his team in exploiting an important property of quantum dots: They can easily transfer energy. When a laser shines on a quantum dot, it can pass the energy on to a nearby molecule, which in turn emits a fluorescent glow that is visible under a microscope. But quantum dots...

Ahead of the game

...equally and independently capable of acquiring and exploiting critical information pertaining to animal availability and behavior," write the anthropologists, from the University of Connecticut, University of Haifa, Hebrew University, and Harvard University. The researchers use new archaeological data from a M...

Vital ocean prey play active role in environment

...ife history that emphasizes krill's active role in exploiting a highly seasonal environment. Nicol's model separates the species into different life stages: larvae, juveniles, gravid females, and other adults. These groups are believed to remain geographically separate. In summer, adults remain close to the e...

Fire ants: Their true story told by the scientist who loves them

...s a particular favorite. "Fire ants specialize in exploiting disturbed habitat, and they've thrived in part because humans have done a lot of disturbing," he said. Other fun facts center on the familiar dirt mound around which smart humans cut a wide swath; it's actually a solarium that collects heat to warm ...

Tamed 11,400 years ago, figs were likely first domesticated crop

...re was a critical switch in the human mind -- from exploiting the earth as it is to actively changing the environment to suit our needs," says Bar-Yosef, professor of anthropology in Harvard's Faculty of Arts and Sciences and curator of Paleolithic archaeology at Harvard's Peabody Museum of Archaeology and Ethn...

Most widely used organic pesticide requires help to kill

...e deployed more effectively in transgenic crops by exploiting the role of insect-borne bacteria that enhance insecticidal activity," the Wisconsin team writes in its PNAS report. What's more, the insight that gut microbes mediate the effects of bacterial toxins could have application in human and animal medic...

Satellites shed light on global warming

...t research is investigating these relationships by exploiting the powerful union of multiple views of the ocean made possible by different instruments like those in the Envisat suite, such as the Radar altimeter, Along Track Scanning Radiometer (ATSR) and Medium Resolution Imaging Spectrometer (MERIS). Envisat ...

Chimpanzees found to use tools to hunt mammalian prey

...himpanzees using the spear-like tools appear to be exploiting a niche relatively ignored by males, an observation that supports a previous hypothesis that female hominids played a role in the evolution of the earliest tool technology and suggests that this technology may have included tools for hunting. ...

Bats prey on nocturnally migrating songbirds

...sserines. A unique creature is indeed capable of exploiting the formidable food source represented by the billions of high-flying, Eurasian songbirds which engage twice a year into long-distance, north-south or south-north nocturnal movements. The danger seems especially acute where birds' flight routes conve...

Finnish scientists discovered a new approach to treat virus-induced lymphomas

...amp; University of Edinburgh) open new options for exploiting reactivation of p53 as a novel and highly selective treatment modality for this virally-induced lymphoma. The project involves scientists from two Academy of Finland National Centre of Excellence Programs, the Translational Genome-Scale Biology and C...

Researchers from the University of Navarra analyze new kinds of cancer-fighting antibodies

...reaction against cancer. This has the advantage of exploiting a mechanism with an action distinct from the other strategies currently being used to treat cancer, and is capable of interacting with the current treatments so as to make both forms of treatment more powerful. Currently this treatment is being t...

Danish researches solve virus puzzle

...rder words, the virus can be viewed as a parasite, exploiting the human cell to live and replicate in. Viral RNA resembles human RNA, but it has a tendency to curl up into 'pseudoknots', a three dimensional structure. When the ribosome walking along an RNA encounters a pseudoknot it needs to unravel the pseu...

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