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Tag: "destroyed" at biology news

Dysentery uses 'sword and shield' to cause infection

...ield to protect the dysentery bacterium from being destroyed by the body's immune system. Dr Christoph Tang, f...ly. We have shown why the bacteria can avoid being destroyed by the body's immune responses through the expression of a molecule that acts as a shield on its sur...

New binding target for oncogenic viral protein

...er substrates recognized by Fbw7, T antigen is not destroyed by the cell. Drs. Clurman and Welcker suspect that by acting as a decoy and binding to Fbw7, T antigen protects cellular Fbw7 targets that facilitate viral replication and tumorigenesis. "I think this work underlines the importance of Fbw7 as an em...

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...argets these molecules, calledmessenger RNA, to be destroyed or degraded. Without messenger RNA, agene cannot translate its genetic code into proteins that carry out itsintended functions.Thiele said the same scenario may occur in human cells, as well, to aneven greater degree. His study was conducted in yeast...

Solution to Pollution: New Bacteria Eats Toxic Waste

...is tests, Sims found microbes in the soil that had destroyed the toxic chemicals. Sims then collaborated with researchers from the Utah State biology department to identify the microbes. The three Libby-site microbes responsible for the remediation were mycobacterium isolates. The other two mycobacterium isol...

New Insights Into HIV Immunity Suggest Alternative Approach to Vaccines

...o react with normal human tissues and are normally destroyed by the immune system," Haynes said. Haynes, an AIDS researcher who has also studied autoimmune diseases, began to focus on possible similarities between HIV infection and the biology of autoimmunity after work on an experimental outer coat vaccine f...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

... long-term strategy to rehabilitate the damaged or destroyed public health infrastructure. To implement this health system rehabilitation strategy, WHO urgently requires US$67 million for activities through the next six months. Notes to editors The tsunami in Southeast Asia, has at least in some areas, led t...

Multi-purpose protein regulates new protein synthesis and immune cell development

... the immune response ?until they can be removed or destroyed by other immune cells. Knowing that XBP1 was requi...k-out embryos into mice whose bone marrow had been destroyed by radiation. He found that stem cells deficient in IRE1 could reconstitute all types of blood and i...

Small species back-up giant marsupial climate change extinction claim

...y the arrival of humans who over hunted animals or destroyed habitats by burning the landscape. The findings, which were unearthed with the help of amateur fossil hunter, Ian Sobbe, are of particular significance because the Darling Downs fossil deposits are among the youngest Australian megafauna deposits - ...

Road salt affects mitigation wetlands

...hen planning constructed wetlands to replace those destroyed during road building, but a Penn State Erie biolog...igation wetlands to replace all the ones that were destroyed by the new road," says Dr. Pamela Silver, professor of biology, Penn State Erie, the Behrend College...

Could microbes solve Russia's chemical weapons conundrum?

...n reaction masses (RMs) that arise when mustard is destroyed by chemical detoxification (a procedure developed in response to the CWC). Currently, incineration or a process called bitumenisation are employed to deal with RMs, how-ever both methods are highly expensive and pose environmental risks. Mustard is...

Stem cell research - new cell lines

...earchers," said Dr Sidhu. "That's because they are destroyed in type-1 diabetes, which affects at least 100,000 people in Australia. So far there is no cure for it. "Human embryonic stem cell research offers a permanent answer to the problem. It gives the hope that we can produce a pure population of those ce...

Six million Africans face famine because of locusts, drought

With locusts and drought having destroyed crops and stripped grazing land for six million people across West Africa, small farmers have started selling livestock cheaply and eating the seed corn they should plant during next month's expected rains, the United Nations Office for the Coordinat...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

...edator of the scale, to a Los Angeles orange grove destroyed almost all of the pests within six months. "By the end of 1889, the scale was no longer a threat anywhere in California," Waldbauer wrote. Waldbauer also recounted a more recent study in which tsetse flies were feasting on and causing infections in ...

Active Vaccine Prevents Mice From Developing Prion Disease

..."Thus, harmful prions in contaminated food will be destroyed in the gut and will not reach other organs in the body." Because the research was conducted in normal mice, the NYU researchers say it will be easier to apply in animals in the wild, which are at risk for developing prion disease. Prion disease is c...

MIT engineers an anti-cancer smart bomb

...u can't deliver chemotherapy to tumors if you have destroyed the vessels that take it there," Sasisekharan said. Also, the two drugs behave differently and are delivered on different schedules: anti-angiogenics over a prolonged period and chemotherapy in cycles. "We designed the nanocell keeping these practic...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

...lso very sensitive to digestive enzymes and may be destroyed by stomach acid before they can be absorbed." To sidestep the difficulty of getting these large protein drugs through the GI tract intact, pharmaceutical scientists have looked at other ways to deliver protein-based drugs-such as via needle-free inje...

Using nanoparticles, in vivo gene therapy activates brain stem cells

...ise idle cells as effective replacements for those destroyed by neurodegenerative diseases, such as Parkinson's. In addition to delivering therapeutic genes to repair malfunctioning brain cells, the nanoparticles also provide promising models for studying the genetic mechanisms of brain disease. "Until now,...

Green catalyst destroys pesticides and munitions toxins, finds Carnegie Mellon University

...rine disruptors. Many of these compounds cannot be destroyed by existing means. The catalyst, one of a family of catalysts called Fe-TAMLs (TAML stands for tetra-amido macrocyclic ligand), works with hydrogen peroxide. Its "green" design is based on elements used naturally in biochemistry. Fe-TAMLs were disco...

Breakthrough: Scientists create world's tiniest organic particles

...bust metals and such with solvents that would have destroyed far more fragile organic matter such as genes or drugs. The new method avoids harsh treatment but also allows formation of uniform particles in any shape designers choose ?spheres, rods, cones, trapezoidal solids, etc. -- and essentially any composi...

A protein in the eye may prevent immune response and protect eyes from disease

...ecial reaction, the eye's delicate tissue would be destroyed by inflammation and the gastrointestinal tract could not tolerate the ingestion of food. The F4/80 molecule (also known as a glycoprotein) was first discovered two decades ago on immune cells in the eye, gut and other privileged sites, but its functi...

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