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Tag: "uncovered" at biology news

Research advances quest for HIV-1 vaccine

Scientists have uncovered new information that may help guide design of vaccines for HIV-1, the virus that causes AIDS. A new detailed structural analysis of the complex formed by an anti-HIV antibody called 4E10 and its specific target provides insight into why this particul...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

New York University biologists have uncovered how the innate immune system in mice's brains fights viral infection of neurons. The findings, published as the cover study in the latest issue of Virology, show that proteins in neurons fight the virus at multiple stages--by preventing the formation...

New Clues Add 40,000 Years to Age of Human Species

...to Ethiopia's Lake Turkana basin, researchers have uncovered evidence suggesting human bones found at that time are roughly 195,000 years old. The researchers believe the findings may bolster the “Out-of-Africa?hypothesis that suggests we all trace to an ancient line that first evolved in Africa and then disp...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...e. Now, an Arizona State University researcher has uncovered the chemistry behind the colors of parrots, descri...plumage red in all of the species studied. "We've uncovered a system where all red parrots use the same set of molecules to color themselves," McGraw said. "It ...

Transport System Smuggles Medicines Into Brain

...e. Now, an Arizona State University researcher has uncovered the chemistry behind the colors of parrots, descri...plumage red in all of the species studied. "We've uncovered a system where all red parrots use the same set of molecules to color themselves," McGraw said. "It ...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...within the muscle cells.?/p> These experiments uncovered previously unsuspected interactions of various proteins as the muscles stretch and contract. The results suggest a model for how these powerful biological motors turn “on?and “off?during the wingbeat. “Small flying insects face an enormous task ?gen...

In the migratory marathon, parasitized monarchs drop out early

...atory ones to parasite infections; scientists just uncovered why it is so. Explanation : infected monarchs quite don't make it while migrating long distances, so they can't propagate the infection once arrived at destination. A little-studied outcome of animal migration is whether these long journeys can lim...

NYU study reveals how brain's immune system fights viral encephalitis

New York University biologists have uncovered how the innate immune system in mice's brains fights viral infection of neurons. The findings, published as the cover study in the latest issue of Virology, show that proteins in neurons fight the virus at multiple stages--by preventing the formation...

Small species back-up giant marsupial climate change extinction claim

...ing a 10 metre deep section of creek bed, the team uncovered 44 species, ranging from land snails, frogs, lizards and small mammals to giant wombats and kangaroos including many species previously unknown to have occurred in the Darling Downs fossil record. The results suggest that the extinction of Darling D...

Cerebral navigation: How do nerve fibers know what direction to grow in?

...y at Harvard Medical School. "The mechanisms we've uncovered could provide opportunities for the development of therapies for spinal cord injury, targeting ephexin and possibly Vav," he speculates, "but much more needs to be known about how ephexin, Vav and other proteins work together to coordinate axon guida...

Researchers discover underwater volcano

...ch cruise to study the Samoan hot spot, scientists uncovered a submarine volcano growing in the summit crater of another larger underwater volcano, Vailulu'u. Researchers explored the unique biological community surrounding the eruption site, and were amazed to find an "Eel City," a community of hundreds of sl...

Roots Engage in Underground Chemical Warfare

... elegant experimental approaches used by this team uncovered a critical aspect of the battle that occurs between plants and microbes. ...

NYU and MSKCC research provides model for understanding chemically induced cancer initiation

...emorial Sloan Kettering Cancer Center (MSKCC), has uncovered a conformational switch--a change in shape in a carcinogen-damaged DNA site--in tumor suppressor genes altered by a known cancer-causing chemical found in cigarette smoke. This finding may open new horizons for understanding the initiation of chemica...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

Scientists have uncovered a new method the immune system uses to label foreign invaders as targets to be attacked. Researchers showed that the immune system can brand foreign proteins by chemically modifying their structure, and that these modifications increased the chances ...

Scientists analyze chromosomes 2 and 4

...rgest "gene deserts" known in the human genome and uncovered more evidence that human chromosome 2 arose from the fusion of two ancestral ape chromosomes, researchers supported by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), reported today. In a study ...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

... form the base of the food web. As well, the team uncovered a sponge with a calcium-based skeleton, a finding that amazed scientists given the depth (about 4,500 meters) at which it was found. Research in the Southern Ocean is the most expensive in the world. The recent ANDEEP III expedition by icebreaker co...

Major new UNC-based drinking water study suggests pregnancy fears may be overstated

...ve had on pregnancy loss (miscarriage). The study uncovered no clear-cut evidence that trihalomethanes harmed women or their developing infants and as a result differed significantly from the Northern California research, Savitz said. The new work did suggest that brominated compounds and total organic halide...

Critical step traced in anthrax infection

...ails surrounding this process are continuing to be uncovered in Collier's lab. "Until now, we have not known whether the PA pore serves simply as a passive conduit, or alternatively, plays an active role in shepherding the unfolded LF and EF molecules through," he said. The findings show that it is the latter?...

Malaria mechanism revealed

...asites to invade red blood cells, researchers have uncovered valuable clues for rational antimalarial drug design and vaccine development. The findings are reported in the July 29 issue of the journal Cell. Malaria causes approximately 400 million clinical cases and 2 million deaths annually, with more than 8...

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

...of 2005, a second relatively complete skeleton was uncovered from the same site. Irmis, who first started working in the park with Parker in 2002 as an undergraduate at Northern Arizona University, said that this crocodilian ancestor was only three to four feet long, with a stubbier, less flattened skull and ...

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