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Tag: "destroy" at biology news

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...ome resistant to most of the drugs that could once destroy it. They have already described and expressed two other genes known to confer drug resistance. "Now that we have these genes expressed in a convenient yeast system, we can work to understand the molecular basis of anti-malarial drug resistance, pr...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...d to kill rapidly spreading cancer cells, also can destroy dynamic reproductive tissue. “I don’t think when you are faced with the reality that you may die, your fertility is the most important thing you are thinking or talking about, but there are a lot of women interested in talking about it,” says Dr....

Brightening prospects of using fluorescent nanotubes in medical applications

...ths of light that cause them to grow hot enough to destroy nearby cells. The approach has one drawback: He doesn’t have an easy way to identify the locations where the clusters attach. Nanotubes should work as well as gold clusters as microscopic blow torches while their fluorescence should make them easy to...

How plague-causing bacteria disarm host defense

...feres with the cell's innate ability to engulf and destroy invading bacteria. "The question now becomes, why is Gaq targeted by YpkA"" ...

'Virtual autopsy' helps identify drowning as cause of death

...suspicious death, the procedure does not damage or destroy key forensic evidence, as can happen during a conventional autopsy. In addition, MDCT can be used in situations where autopsy may not be feasible or is prohibited by religious beliefs. However, in most cases, MDCT would best be employed as an adjunct...

Early exposure to indoor fungus molecules may protect infants against future allergies

...riminate between helpful and harmful microbes—they destroy them all. "This eliminates the natural competition among bacteria and fungi, so the surviving microbes are often the infectious ones that can develop resistance to drugs designed to eliminate them." Iossifova says further research is needed to...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...lizes the white blood cells that normally seek and destroy invading bacteria. Just traces of the toxin can slow movement of these cells, called neutrophils, by 50 percent, UF researchers discovered. "Neutrophils have to get to the infection to kill anything. If you paralyze them so they don't move, they c...

Hives ferment a yeasty brew, attract beetle pest

...duce without honeybees. The small hive beetle can destroy many commercial hives. "If we can find out how this system works, there is a good possibility we will figure out ways to protect against the beetle," says Tumlinson. Honeybees in the U.S. and Europe have been suffering from a variety of invader...

Researchers wake up viruses inside tumors to image and then destroy cancers

...atients whose infection can then be manipulated to destroy their tumors. They say this strategy could offer a novel way of treating many cancers associated with Epstein-Barr, including at least four different types of lymphoma and nasopharyngeal and gastric cancers. In the March 1 issue of Clinical Cancer R...

Natural antibiotics yield secrets to atom-level imaging technique

...w these AMP smart bombs interact with membranes to destroy bacteria. We need to know how they're shaped before, during and after the process of attaching to bacteria and how they attach." Solid-state NMR spectroscopy is an ideal tool for answering such questions because it provides atom-level details of t...

Scientists find genes involved in the battle between Hessian flies and wheat

... insects that nibble on the plant's leaves and can destroy crops worldwide, but the Hessian fly larvae that survive eventually evolve methods to overcome plant defenses. Purdue University and USDA-Agriculture Research Service scientists trying to thwart the insect have identified Hessian fly genes that null...

Major gene study uncovers secrets of leukemia

...l not recognize them as defective immune cells and destroy them. Instead, these undifferentiated cells contin...ould recognize them as defective B lymphocytes and destroy them." ...

Need oxygen? Cells know how to spend and save

..., they generate "free radicals" that can damage or destroy cells. The mitochondria are designed to produce energy without excess free radical production at normal oxygen levels. Semenza's team noticed that one particular component of the COX protein complex, COX4, comes in two different forms, COX4-1 an...

Tropical forests -- Earth's air conditioner

...t nature," he explains. "It just makes no sense to destroy natural ecosystems in the name of saving natural ecosystems."...

Africa's first large-scale HIV vaccine study launches

... killer cells that are programmed to recognize and destroy cells that are infected with HIV. The studies already completed with this vaccine suggest that it is generally well tolerated and that the response of the immune system or immunogenicity is high. In South Africa, the vaccine trial is called "Pham...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...CTL," says Herlyn. "Though CTL have the ability to destroy cancer cells, they don't have the ability to call upon the full capabilities of the immune system, as do the helper T cells." The new tumor antigen discovered in her lab, RPL8, is an ideal vaccine candidate because it has the potential for eliciti...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...e a strategy that would allow the immune system to destroy tumor cells by targeting p53. "Instead of creating a vaccine based on mutant p53, which would require a custom vaccine for every patient, our strategy is to target parts of the unaltered p53 protein that can best activate the immune system," s...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...rganisms or their metabolic products to inhibit or destroy undesirable microorganisms. Marina Sánchez Hidalgo, member of the research group and author of the doctoral thesis entitled 'Caracterización de variantes de la enterocina AS-48 obtenidas mediante mutagénesis dirigida' (Characterization of enteroci...

Scientists unveil piece of HIV protein that may be key to AIDS vaccine development

...ting attempts by the immune system to identify and destroy it—the virus is also swathed by sugary molecules. ...kely needs to induce antibodies that can sense and destroy multiple HIV strains. Scientists have sought such broadly neutralizing antibodies by studying the bl...

Researchers urge monitoring of bone health during chemotherapy

...healthy blood counts after chemotherapy, which can destroy white blood cells. Low levels of white blood cells leave patients susceptible to infection. "This growth factor encourages bone breakdown, and any therapy that decreases bone density could potentially enhance tumor growth in bone," says senior aut...

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