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Tag: "human" at biology news

Natural antibiotics yield secrets to atom-level imaging technique

Frog skin and human lungs hold secrets to developing new antibiotics, ...ed frog skin, for instance, and the linings of the human respiratory and gastrointestinal tracts also crank out the short proteins in response to invading pa...

Studies force new view on biology of flavonoids

... However, these same compounds may indeed benefit human health, but for reasons that are quite different ?...nalysis of how flavonoids work and function in the human body, were recently published in Free Radical Biology and Medicine, a professional journal. "What...

Researchers find link between food odors and lifespan in fruit flies

...ledge gained could have important implications for human health. In a paper to be published in Science, ...on." Ultimately, understanding any link between human longevity and caloric intake, and the role our sense of smell may play in the process, will require ...

Study examines genetic risk factors for Alzheimer's disease

...ology to look comprehensively at every gene in the human genome in Alzheimer’s Disease and we hope that there are other exciting findings to come.? There is no known cure or preventative treatment for Alzheimer’s disease, which affects one in 20 people over the age of 65 and one in five over the age of 8...

Scientists identify pancreatic cancer stem cells

...edical Center have, for the first time, identified human pancreatic cancer stem cells. Their work indicates...only 100 of these stem cells are needed to produce human pancreatic cancer in half of mice tested. They also found these cells are at least 100 times more tu...

Sandia researchers take new approach to studying how cells respond to pathogens

...the ability grow and represent a relevant model of human immune cells. They obtained "immortalized mouse im...ugh, like white blood cells directly isolated from human patients. Our approach is designed to be flexible enough to handle many different cell types, and it...

2 brains -- 1 thought

...etworks. For networks far simpler than that of the human brain this idea also applies: different structures can display the same functionality. Raoul-Martin Memmesheimer and Marc Timme, researchers at the Max Planck Institute for Dynamics and Self-Organization and the Bernstein Center for Computational Neu...

UCI scientists reconstruct migration of avian flu virus

...ll mutate into a form that can be transmitted from human to human." Avian flu has been isolated almost e...e that the virus can efficiently be passed on from human to human. Although fewer than 300 recorded human cases of this flu have been recorded worldwide, its...

Paper challenges 1491 Amazonian population theories

...clude with a high degree of accuracy the extent of human settlement in that region. "What we do say is t... least, the rainforest is the product of long term human use, has been used as farmers and loggers as justification for clearcutting rainforests. Their argum...

Scientists genetically engineer tomatoes with enhanced folate content

... Folate is one of the most vital nutrients for the human body's growth and development, which is why folate-rich diets are typically suggested for women planning a pregnancy or who are pregnant. Without it, cell division would not be possible because the nutrient plays an essential role in both the product...

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

...kthrough in identifying functional elements in the human genome, according to a report published online tod... the tissues in which genes are expressed. "The human genome is packaged within each cell by chromatin, a structure composed of DNA wrapped around protein...

UC Davis researchers use heated nanoprobes to destroy breast cancer cells in mice

...eriments with laboratory mice that bear aggressive human breast cancers, UC Davis researchers have used hot...- into the bloodstreams of laboratory mice bearing human breast tumors. Once in the bloodstream, the probes began to seek out and latch onto receptors on the...

Scientists identify molecular cause for one form of deafness

...he first step. This work has relevance to not just human hearing, but also to artificial sensors." ...

Study shows isolation of stem cells may lead to a treatment for hearing loss

... hair cells. Docked inside the spiral duct of the human cochlea are ~15,000 hair cells, which are highly specialized neuroepithelial cells that enable us to hear a violin or a whisper. These hair cells differ in length by minuscule amounts and are set in motion by specific frequencies of sound. We hear ...

Aspirin discovery may improve cancer treatments

... synthesis. "Our research showed that treating human cells with salicylates results in the phosphorylation of the translation initiation factor eIF2Ą, thus inhibiting protein synthesis," Professor Williams said. "Inhibiting or slowing down protein synthesis reduces the accumulation of incorrectly f...

Changes in amino acids in the 1918 influenza virus cut transmission

...lecule that is recognized by hemaglutinins of both human and avian strains of influenza virus. These molec...circulating in birds. H1 and H3 are found today in human influenza viruses. Hemaglutinin helps open the door to the cell to allow the virus to infect. Th...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...stant bacteria that have the potential to threaten human health. Dr. Margie Lee, professor in the UGA Col...ce in normal intestinal bacteria that do not cause human illness and ?in a companion study published in May in the same journal ?also examined levels of drug...

Gene found for rare disorder may reveal new pathway in mental retardation

...ogical pathway that may have a broader role during human development, potentially in cases of mental retard...n pathway also cause specific abnormalities during human development. "In these cohesin complex proteins, the strongest effect seems to be in brain developme...

Mutation improves memory, may lead to memory-enhancing pill

...ral times to memorize it," Costa-Mattioli said. "A human equivalent of these mice would get the information...ets for the improvement of memory, for instance in human disorders associated with memory loss." ...

Action video games sharpen vision 20 percent

... processing," says Bavelier. "These games push the human visual system to the limits and the brain adapts to it. That learning carries over into other activities and possibly everyday life." The improvement was seen both in the part of the visual field where video game players typically play, but also be...

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