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Tag: "resist" at biology news

Enzyme allows B cells to resist death, leading to leukemia

...gh Lynactivity and the ability of these B cells to resist apoptosis. Theauthors suggest that Lyn is involved in the development of B-CLL andthat this enzyme therefore represents an attractive target for therapy.The study will appear online on January 13 in advance of publication inthe February 1 print editi...

Poplar trees redirect resources in response to simulated attack

...elieves there may be an increase in compounds that resist microbial attack after plants have soaked up atmospheric carbon dioxide, therefore countering the effects of fossil-fuel combustion. This is a strategy of carbon sequestration -- the provision of long-term storage of carbon so that the buildup of car...

Purdue proves concept of using nano-materials for drug discovery

...h are directly responsible for cancer's ability to resist anti-tumor chemotherapy drugs. These proteins act as tiny pumps that quickly remove chemotherapy drugs from tumor cells, making the treatment less effective. Cancer cells exposed to chemotherapy drugs produce a disproportionately large number of the ...

HIV vaccine trial breaks ground for future research

...d with the vaccine and caused a greater ability to resist the virus. For the non-white group, the authors suggest that biological differences in immune response or genetic markers of resistance to infection could have made the vaccine more effective. Also examined in the trial were the immune responses to ...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...2; About 70 percent of bacteria found in hospitals resist at least one of the drugs commonly used to treat the infections they cause, according to the Food and Drug Administration. The agency warns that unless problems are detected early and swift action taken to find substitute drugs, previously treatable ...

Defenseless plants arm themselves with metals

...ost other plants don't accumulate metals, and they resist infection just fine. It never really made sense to...events that occur in succession and help the plant resist infection. A molecule called salicylic acid - a common plant compound and the active ingredient in p...

Chromosome Deletion Predicts Aggressive Neuroblastoma

... cases are more aggressive, and are more likely to resist initial treatment, or to cause a relapse. Identifying the correct risk level allows doctors to treat aggressive cancers appropriately, while not subjecting children with low-risk cancer to overtreatment. Oncologists know that amplification, an abnor...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...s of several types of bacteria with the ability to resist antibiotics have emerged, including those that cause TB, pneumonia, cholera, typhoid, salmonella, and staphylococcal dysentery. These diseases are coming back resistant to the antibiotics that have been used to treat them, and people infected with th...

Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage

...mphocytes is essential to the ability of humans to resist disease," said Wiest. "T cells recognize these inv... cells make unique contributions to our ability to resist disease. The more numerous T cells of the alpha-beta lineage provide protection against infectious ...

Unique library of plant genes germinates, takes root at UNC

...tions will lead to plants that yield more food and resist damage from diseases and insects more successfully, he said. They also can lead to better and cheaper medicines and plant products like cotton, paper and rubber. "A persistent challenge of genomics is how to capture, analyze and distribute the massi...

Immune system's distress signal tells bacteria when to strike back

... Many harmful bacteria have already learned how to resist the drugs developed to treat them. Scientists are now looking at alternatives, such as ways to block or scramble the chemical messages that allow microbes to eavesdrop on their hosts or to conspire together to mount an attack. "We chose to study thi...

Deep thinking: Scientists sequence a cold-loving marine microbe

...ranes packed with polyunsaturated fatty acids that resist freezing, polyester compounds that offer extra energy reserves, protective solutes inside cells, and ordinary enzymes altered to function in chilly seawater. "Our goal was to compare C. psychrerythraea to a variety of bacteria that live at different...

Purdue scientists may have found key to halting spinal cord damage

...imer's diseases - all of which progress slowly and resist treatment - Shi's team decided to see if the chemical was present in another slow-developing, seemingly untreatable condition: the degeneration of the spinal cord after initial traumatic injury. "Unlike most other parts of the body, spinal cord tiss...

Colorful bacteria more dangerous

... that give certain bugs their color also help them resist attack by immune cells called neutrophils. Scientists and clinicians have known for many years that gold-colored strains of a bacterium called Staphylococcus aureus tend to be cause more disease than colorless strains. The color of these bugs comes ...

Einstein researchers identify new way that bacteria develop resistance to antibiotics

...erium that causes tuberculosis may soon be able to resist the effects of antibiotics known as fluoroquinolon...a new strategy by which TB bacteria may be able to resist fluoroquinolones--and that other microbes are already using. After studying the three-dimensional s...

Study: Plants use dual defense system to fight pathogens

... day help researchers breed plants that can better resist a variety of pathogens, said David Mackey, the study's lead author and an assistant professor of horticulture and crop science at Ohio State University . He and his colleagues explain their findings in the current issue of the journal Cell. The res...

Techniques available to detect soil that inhibits destructive soybean pest

...in soybean-producing areas. "Using plants bred to resist pests is not the complete answer, so it's important to find suppressive mechanisms," Westphal said. "Bio-control is much more desirable than using chemicals in order to limit damage to the environment." In a paper published in the just-released Marc...

Study findings offer potential new targets for antibiotics

... can stay ahead of the ability of the pathogens to resist antibiotics, we're okay." The findings appear online this week in the Early Edition of the Proceedings of the National Academy of Sciences. Fredrick co-authored the study with lead author Alexander Mankin and with Aymen Yassin, both with the Univers...

New antibody shows promise as cure for anthrax

...en for an anthrax strain that has been designed to resist antibiotics. The new antibody treatment, reported in the December issue of Infection and Immunity, is the result of collaboration between the labs of Dr. Brent Iverson and Dr. George Georgiou at The University of Texas at Austin and a research team ...

Kenya halts first field trials of GM maize

...prayed a restricted pesticide on maize modified to resist attack by insects called stem borers. Wilson Song...evelop both conventional and GM maize varieties to resist the pest. The GM plants, which incorporate genetic material from a bacterium called Bacillus thurin...

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