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Tag: "reported" at biology news

Modified collagen could yield important medical applications

... their recent journal paper, Yu and his colleagues reported that they had attached a chemical, polyethylene glycol, to the peptides, causing collagen to repel cells instead of attracting them. When the researchers added human cells to a lab dish, the cells migrated toward an untreated collagen film but avoide...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...archer Karen Warkentin. According to her findings, reported in an upcoming issue of Animal Behaviour, it's a particular characteristic of the vibrations that shake the clutch -- not only the speed of these vibrations, or how hard the clutch is shaken, but the length of and time between the movements that sign...

Unusual antibiotics show promise against deadly 'superbugs'

... their recent journal paper, Yu and his colleagues reported that they had attached a chemical, polyethylene glycol, to the peptides, causing collagen to repel cells instead of attracting them. When the researchers added human cells to a lab dish, the cells migrated toward an untreated collagen film but avoide...

Study shows humans have ability to track odors, much like bloodhounds

...ion in humans. Porter, Sobel and their colleagues reported the results in the August 18 issue of the journal Neuron. In a review appearing in the same issue of the journal, Jay A. Gottfried of the Department of Neurology at Northwestern University's Feinberg School of Medicine noted that the UC Berkeley fin...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...arine Ecology in Bremen, Germany. Their findings, reported in the May 6 issue of the journal Science, show that these small animals effectively keep their depth by "treadmilling" against upwelling and downwelling currents at speeds of up to several tens of body-lengths per second. "Clumped distribution, ter...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...s of carbon in a National Science Foundation study reported in Science Express. "Through the energy we consume, each of us makes a contribution to increasing greenhouse gasses, such as carbon dioxide and methane, in the Earth's atmosphere," said Pagani. "To understand the implications of these actions for th...

New Vaccine To Be Used For First Time In Polio Outbreak Response

...o have today been announced in Yemen, bringing the reported total number associated with an outbreak in the co...t recent of fifteen polio-free countries that have reported cases of polio since the epidemic began in late 2003. ...

Invasive parasite destroying fish species

...s of carbon in a National Science Foundation study reported in Science Express. "Through the energy we consume, each of us makes a contribution to increasing greenhouse gasses, such as carbon dioxide and methane, in the Earth's atmosphere," said Pagani. "To understand the implications of these actions for th...

Stem cells grown in lab mirror normal developmental steps

...s of carbon in a National Science Foundation study reported in Science Express. "Through the energy we consume, each of us makes a contribution to increasing greenhouse gasses, such as carbon dioxide and methane, in the Earth's atmosphere," said Pagani. "To understand the implications of these actions for th...

To translate touch, the brain can quickly rearrange its sense of the body

...idual touch sensations are perceived. The work is reported by researchers Frederique de Vignemont, Henrik Ehrsson, and Patrick Haggard at University College London. The information that is integrated in the course of proprioception comes from several different senses, including touch, pain, vision, informat...

Green catalyst destroys pesticides and munitions toxins, finds Carnegie Mellon University

Results reported at American Chemical Society meetingA chemical catalyst developed at Carnegie Mellon University completely destroys dangerous nitrophenols in laboratory tests, according to Arani Chanda, a doctoral student who is presenting his findings on Sunday, Au...

Newly discovered genetic disease sheds light on body's water balance

... dehydration. "To our knowledge, this is the only reported example in which mutations affecting the same amino acid cause two different genetic diseases," the UCSF researchers write. While only two infants so far have been identified with NSIAD, the condition may not be rare, according to Stephen Rosenthal,...

Researchers identify new genes that regulate aging

...del organism in genetics studies. The findings are reported in the inaugural issue of PLoS Genetics. Each of the 23 genes somehow normally acts to reduce longevity, whereas inhibiting any one of them increases lifespan. For example, the worm's lifespan doubles when one gene is prohibited from working properl...

Male Combat Veterans Rank High In Heart Disease Risk

...el Hill. Heavy drinkers were defined as those who reported consuming 14 or more servings of beer, wine or hard liquor a week. Heavy smoking was determined by calculating the subjects' pack-years smoked (the number of years smoking multiplied by the number of packs smoked per day) and dividing the results int...

Scientists find microRNAs regulate plant development

...rrect patterns and correct time sequence. Research reported in The Plant Cell shows that microRNAs control the accumulation of transcription factor proteins that regulate the expression of genes in the auxin response pathway. Messenger RNA (mRNA) molecules are encoded by genes and are themselves templates fo...

Novel plague virulence factor identified

...n his model because another research team recently reported that the bacterium killed C. elegans by creating a "biofilm" over the worm's pharynx, causing it to die of starvation. Since mammals infected with Y. pestis do not die in this manner, Aballay believed that other virulence factors were involved in inf...

New Look at DNA Hints at Origin of UV Damage

...n his model because another research team recently reported that the bacterium killed C. elegans by creating a "biofilm" over the worm's pharynx, causing it to die of starvation. Since mammals infected with Y. pestis do not die in this manner, Aballay believed that other virulence factors were involved in inf...

Bumblebees copy one another when contending with unfamiliar flowers

Researchers have reported findings that offer a surprising new twist to our ...of unfamiliar plant species. The observations are reported in the June 21 issue of Current Biology in a new paper by Elli Leadbeater and Lars Chittka of Queen ...

Discoveries by UAB and Florida scientists may help transplanted organs survive longer

...e National Academy of Sciences. The research team reported that they have identified the biological pathway of a potent molecule that could delay rejection of transplanted organs by preventing blood-vessel deterioration. "One of the principal problems for kidney transplantation is organ availability," said ...

Improving the potential of cancer vaccines

...tack the body's own tissues. His group previously reported the existence of tumor-specific Treg cells at tumor sites. "Thus, the tumor cells use these Treg cells to protect themselves," said Wang. "In fact, tumor cells can actively recruit and activate them to turn on their immune suppressive function." One...

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