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Tag: "rid" at biology news

Drug resistance may travel same path as quorum sensing

...to communicate better. The effect is that they get rid of the drug," said Zechiedrich. Instead of bacterial pumps sending out the usual communication signals, they send out drug instead ?inadvertently blocking the ability of the drug to kill the bacteria. This does not occur because the bacteria "know" ...

Common enzyme is a key player in DNA repair

...nd tolerate the damage, even though it doesn't get rid of it," Walker explained. The molecular building blocks of DNA are adenine, cytosine, guanine, thymine ?A, C, G, and T in the shorthand of molecular biology. In different combinations, they make up the genes that code for the proteins that carry o...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...and create more energy. Training helps people get rid of the lactic acid before it can build to the point where it causes muscle fatigue, and at the cellular level, Brooks said, training means growing the mitochondria in muscle cells. The mitochondria - often called the powerhouse of the cell - is where...

Plants, too, have ways to manage freeloaders

...working homeowner, they have developed ways to get rid of freeloaders, University of California, Berkeley, biologists have found. In a study of a coastal California lupine that harbors nitrogen-fixing bacteria in its roots, UC Berkeley researchers have shown that the roots respond differently to bacteri...

Bacterial protein mimics host to cripple defenses

...ections, nip potential cancers in the bud, and get rid of old or unneeded cells. However, runaway PCD leads to everything from unseemly spots on tomatoes to Parkinson's and Alzheimer's diseases. BTI Scientist and Cornell University Professor of Plant Pathology Gregory Martin studies the interaction of P...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...rdian of the genome" because of its ability to get rid of genetically damaged cells. The researchers thought that getting a working version into the cancer cells would increase the effectiveness of chemotherapy and radiation, which cause such damage in the course of treatment. In preclinical work, Cha...

Plant gene related to cancer treatment may foster new oncology drugs

...in through cell walls. In humans, related proteins rid cells of toxins such as cancer drugs. "The findings of these two studies have important implications for biomedicine because we now can identify the parts of these proteins that determine whether cells take up or throw off different molecules, such ...

Newly recognized gene mutation may reduce seeds, resurrect plants

... a drought situation, for example, plants will get rid of some seeds so that they can support growth of at least a few healthy seeds." In the November issue of Plant Physiology, Jenks and his team of researchers from the Purdue Department of Horticulture and Landscape Architecture report on the normal g...

Renewed hope for Parkinson's patients

...ells distinguish something they're supposed to get rid of versus something they're supposed to keep." The researchers explain that the immune system is designed to detect and attack foreign invaders, but cancer cells present a special challenge because they are still the bodies own cells, albeit ones in...

New study finds how cells with damaged DNA alert the immune system

...ells distinguish something they're supposed to get rid of versus something they're supposed to keep." The researchers explain that the immune system is designed to detect and attack foreign invaders, but cancer cells present a special challenge because they are still the bodies own cells, albeit ones in...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

...t management, including addressing the need to get rid of standing water, is an important public health measure, she said. A bacterial disease, leptospirosis, may be caused by exposure to water contaminated by rodent urine and can be treated successfully with antibiotics. Over the long term, mold ma...

Researchers find how some antibiotics kill bacteria

...d be ideal drugs if we could figure out how to get rid of resistance." ...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...he untreated dogs, thus enables macrophages to get rid of the parasites that are infecting them. The animal thus acquires long-term protection against visceral leishmaniasis. Although this vaccine’s effectiveness has been shown only on a limited number of animals, it is a further step towards protection...

Bacteria recognize antimicrobials, respond with counter-defenses

...onghold in the midst of the body's attempts to get rid of them. Strangely enough, the same molecules that the body sends out to help destroy salmonella inadvertently launch bacterial defenses. It is as if missiles armed, rather than demolished, the target. The body's antimicrobial peptides bind to an e...

Microscopic brain imaging in the palm of your hand

... the sample through a cloud. It's possible to get rid of background haze and reduce the scattering using...ecules used to mark the tissue. The technique gets rid of the background haze and reduces scattering, because molecules outside the area of interest are mu...

Identification of specific genes predicts which patients will respond to Hepatitis C treatment

...n and interferon. This treatment can currently get rid of the virus in only roughly 50% of persons infected with genotype 1, the most common genotype in North America and world-wide. ...

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

...mmune system uses to coordinate its efforts to get rid of bacteria. When these bacteria intercept this message, they recognize it as a threat, assess their own numbers and, if they have sufficient strength, activate genes that quickly transform them from benign passengers in the bowel into deadly blood-s...

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

...rs, and the various methods that people use to get rid of pests. The book is written for a general audien...erminate bad bugs. "The least creative way to get rid of bad bugs is by using insecticides," Waldbauer said. Biological control, a practice in which natur...

Bee mites suppress bee immunity, open door for viruses and bacteria

...which can remove the mites from the bees. They get rid of the mites." While researchers know that the Varroa mite is behind the death of bee colonies, the mechanism causing the deaths is still unknown. Yang and Dr. Diana L. Cox-Foster, Penn State professor of entomology, now believe that a combination o...

Gene keeps neural cells on correct developmental path

... with shutting down the REST gene. "The cell gets rid of all the excess protein, kicks it off the DNA, then stomps on its head so it can't make RNA," Mandel said. "We can't detect REST in the terminally differentiated neuron." But some molecular partners of REST remain, perhaps fine-tuning gene expressi...

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