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Tag: "microbes" at biology news

New bacterium discovered -- related to cause of trench fever

...es. She was surprised to find that one of the microbes that causes severe infections in AIDS patients in the U.S was the same species that caused trench fever in WWI soldiers fighting in Europe 80 years before. The work was published in “The New England Journal of Medicine” in 1992. Several years lat...

In mice, drug protects against diabetes and atherosclerosis

...ges, which scavenge and digest cellular debris and microbes in the blood stream. The aP2 signals encourage macrophages to load up on cholesterol and become "foam cells" that adhere to artery walls, creating dangerous plaques that eventually may rupture and trigger a heart attack. In mice lacking these lipid c...

Small, self-controlled planes combine plant pathology and engineering

...hat have never been cultured before. Some of these microbes may thrive only in the atmosphere, and many of the...ms in the atmosphere.” He explained, “We know that microbes mediate important biochemical processes in the soil and the ocean. It is not so farfetched that a si...

In nature, proteins sweep up nanoparticles

...nce, reveals that the proteins travel far from the microbes that produce them, and then amass metal nanopartic...hich are the telltale calling cards left behind by microbes that may have lived eons ago. The presence of fine particulate sulfides in minerals is one such bios...

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

...soaps to clean their bodies and homes. "Certain microbes can have helpful affects in the body," she explain...etition among bacteria and fungi, so the surviving microbes are often the infectious ones that can develop resistance to drugs designed to eliminate them." ...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...acting battery of defences that recognise and kill microbes to prevent infections from occurring. "Some rem...tic and Photorhabdus produces it to kill off other microbes that might grow in the corpse of the dead insect. To test their findings, the researchers produc...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

...from an evolutionary standpoint, there may be some microbes that are fought better when sleep is disrupted, although clearly not the two microbes they tested in the current study. "We think that is the reason flies do this," said Schneider, "but ...

Herpes infection may be symbiotic, help beat back some bacteria

...live in the human gut to the advantage of both the microbes and their human hosts. The results from the Virgin lab are among the first to suggest the potential for symbiotic benefits from viral infections that live in areas beyond epithelial surfaces like the skin, throat or intestines. For the new researc...

Uniform language for describing genes of pathogenic and beneficial microbes

...tions for preventing infections by disease-causing microbes while preserving or encouraging the presence of be...useful for describing benign as well as pathogenic microbes in plant or animal hosts.? Brett Tyler, Professor at the Virginia Bioinformatics Institute, and th...

MIT's ocean model captures diversity of underwater forests

...hink of them-water filled with millions of diverse microbes that wax and wane in relative abundance through in...ions and test hypotheses about the role of oceanic microbes in global processes. This will help guide decisions about responsible use of the oceans in this era...

Natural antibiotics yield secrets to atom-level imaging technique

...he immune system's early line of defense, battling microbes at the first places they try to penetrate: skin, m...nes. But they're selectively pugnacious, targeting microbes but leaving healthy host cells alone. "They're like smart bombs," Ramamoorthy said. "We'd like to...

Cloning the smell of the seaside

..., tens of millions of tonnes of it are released by microbes that live near plankton and marine plants, including seaweeds and some salt-marsh plants. The gas plays an important role in the formation of cloud cover over the oceans, with major effects on climate. Indeed, the phenomenon was used by James Loveloc...

Bacterial walls come tumbling down

...f new antibiotics, which are in constant demand as microbes continually evolve new ways to evade the drugs that researchers design to thwart them. The time it takes for bacteria to develop resistance to new antibiotics has been as short as one year for penicillin V and as long as 30 years for vancomycin. R...

Drug-resistant bacterial infections serious complication after corrective eye surgery

...ery. Healthcare workers may develop keratitis from microbes associated with nosocomial infection. In addition, surgeons should now be vigilant for community-acquired MRSA keratitis. All patients should be informed of the risk factors and warning signs of infectious keratitis and need to be advised to seek med...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...r glider called Flavobacterium johnsoniae. The two microbes are not closely related. "You are more closely related to a fruit fly than these two organisms are to each other," he says. However, from analysis of genes from the two bacteria, McBride suspects that they use the same basic machinery to move. ...

Microbes start immune response by sneaking inside cells

...eases. “In our study, the presence of bacterial microbes inside the cell is what triggers the immune response. That creates a new perspective for developing new drugs,?says senior author Gabriel Nunez, M.D., the Paul H. de Kruif professor of pathology at the U-M Medical School and a member of the U-M Compr...

Shedding new light on proteorhodopsin

...t sources may be better at producing biofuels than microbes that can only utilize a single energy source. ... This would be a critical adaptation for seafaring microbes because the world's oceans are permeated with "dead zones," areas that lack sufficient oxygen to sus...

Why doesn't the immune system attack the small intestine?

...mune system - perpetually on guard against foreign microbes like bacteria ?doesn't attack tissues in the small intestine that harbor millions of bacteria cells. In a study in the February issue of Nature Immunology, and which is currently available on the journal's Web site as an advanced online publication,...

Scientists find new genes for Crohn's disease

...vidual's ability to respond effectively to harmful microbes influences his or her susceptibility to the disease. "We propose that genetic variation in the ATG16L1 gene leads to alterations in how the body uses autophagy and therefore may result in increased persistence of [toxic] cellular and bacterial com...

Trojan horse strategy defeats drug-resistant bacteria

...es, they sought to intensify the stress imposed on microbes by one of the body's own defense mechanisms. "...bility to form biofilms, slime-encased colonies of microbes that cause many chronic infections. "Because iron is so important in infection, we thought infectin...

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