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Tag: "fighting" at biology news

Boosting brain power -- with chocolate

...d be useful in enhancing brain function for people fighting fatigue, sleep deprivation, and even the effects of ageing. Ian Macdonald, professor of metabolic physiology at The University of Nottingham, used magnetic resonance imaging (MRI) to detect increased activity in specific areas of the brain in indi...

Scientists identify specific enzymes that make meningitis hard to fight

... bacteria which prevent the body from successfully fighting off the disease, and make the infection extremely ...s an important role for DNA repair in meningitides fighting off the attack of the body's immune system. "We have examined two enzymes from a family that are...

Creating new life forms that may help eradicate cancer affecting women

...lled Advaxis, have embarked on a novel approach to fighting cancer: Engaging the immune system to attack cance...y products. This microorganism apparently aids in fighting cancer by activating the body's own killer (cytotoxic T) cells to elicit a stronger than normal immu...

New science of metagenomics 'will transform modern microbiology'

...nctions as balancing the atmosphere's composition, fighting disease, and supporting plant growth, the new report says. "Metagenomics lets us see into the previously invisible microbial world, opening a frontier of science that was unimaginable until recently," said Jo Handelsman, Howard Hughes Medical Inst...

White blood cells of cancer-resistant mice overwhelm natural defenses of cancer cells

... but which had not been thought to be effective in fighting off cancer. Instead, in these cancer-resistant mice, three white-blood-cell types of the innate immune system ?neutrophils, macrophages and natural killer cells ?all infiltrate the tumor site in a multi-pronged killing response. "Each cell type had...

OHSU researchers demonstrate how white blood cells cannibalize virus-infected cells

...ood cells literally eat virus-infected cells while fighting disease at the microscopic level. The research not only helps provide a clearer understanding of the body's immune system, it also offers hope of a new method for gauging vaccine effectiveness. The research is published in the current edition of the ...

UCSF study will test new vaginal microbicide for herpes and HIV

...ill be conducted to determine its effectiveness at fighting off herpes and HIV infection. But Moscicki said that trials in animals have found the gel to be nearly 100 percent effective and have few side effects. "There has been an important move supported by the National Institutes of Health and World Hea...

Invasive ants territorial when neighbors are not kin

...aw that the ants from different supercolonies were fighting with each other, they were glad to know that things were moving in the right direction," quipped Holway. ...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

...ive, so blocking it might point to a treatment for fighting cancer, the researchers report in today's issue of Cell. "We got the surprise that this mechanism is involved in cancer cell survival, even though it's normally involved in immune response," said Dr. Michael White, associate professor of cell biol...

Environmental toxins may cause body's defenses to worsen lung disease

...he white blood cells responsible for targeting and fighting off infection in the body, continually survey the epithelial cells lining the lungs to identify and destroy diseased cells. If the lymphocyte recognizes the tissue, Borchers explains, it simply continues its survey for problems. But if the cell recei...

Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses

...e system," he says. "But when they are distracted fighting non-existent parasites, they cannot deal well with the very real microbes continuously coming into the nose." This, Lane notes, may promote growth of bacteria and fungi in the nose, which is a common finding in those with chronic sinusitis with p...

Mysterious 'neural noise' actually primes brain for peak performance

...d think this is crazy because engineers are always fighting to reduce the noise in their circuits, and yet here's the best computing machine in the universe--and it looks utterly random," says Alex Pouget, associate professor of brain and cognitive sciences at the University of Rochester. Pouget's work for...

Novel vaccine shows promise against early-stage breast cancer

...proving long-term survival for women who have been fighting the disease. To build on these successes, researchers are now harnessing what they have learned about treating breast cancer and applying it to possible methods of prevention to reduce the total incidence of the disease. One study presented today a...

Study illuminates how the plague bacteria causes disease

...esults might also contribute to new strategies for fighting the bug. "Yersinia injects several virulence factors into its host," said C. Erec Stebbins of Rockefeller University. "If we can discover which ones are critical, we might identify the pathogen's Achilles heel--an attractive target for antibacterial...

Lab-on-a-chip could speed up treatment of drug-resistant pneumonia

...s that a certain drug is likely to be effective at fighting the infection. The death of the bugs is confirmed by checking with a special dye. Once the bacteria-carrying fluid is injected into the chip, the entire procedure is automatic-- including the counting of fluorescent-marked cells, which is done by ...

Adolescent but not adult hamsters are more aggressive on low dose of fluoxetine

...ial behavior, given how the rodents' youthful play fighting develops in clearly understood stages into adult aggression. In the study, researchers injected each of the experimental hamsters with high or low doses of fluoxetine. Two hours later, they put a smaller, younger same-sex hamster into the exper...

Fighting like a girl or boy determined by gene in fruit flies

Fighting like a girl or fighting like a boy is hardwired into fruit fly neurons, ac...f neurobiology at HMS, who developed the fruit fly fighting model used. "We want to understand that. I can't think of a better system to study than fruit flies....

Quality not quantity important for immune response to HIV

...teins, the more effective the immune system was at fighting infection. However, for reasons that are unclear, the opposite was true for responses to the Env proteins, where a stronger response was associated with a higher viral load ?in other words, worse control of HIV." Professor Goulder believes these f...

Researchers map spread of pathogens in the human body

...fight against bacterial infections is analogous to fighting a battle, if you know where your enemy is and how it moves around, you can make calculated, strategic strikes." Currently, the debate over the usefulness of multiple-drug therapy must take into account the full evaluation of potential synergistic ...

Intrinsic eye protein halts angiogenesis

...genesis. With that knowledge we will be closer to fighting the growth of everything from vision-obscuring blood vessels in the eye to cancers," said Jayakrishna. ...

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