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Tag: "connection" at biology news

St. Jude study solves mystery of mammalian ears

...ake cilia do their job better; rather, there is no connection between the hair cell contractions and how the cilia do their job. Instead, somatic motility, generated by prestin, is the key to the superior hearing of mammals....

Scratch no more: Gene for itch sensation discovered

...stimuli. The laboratory experiments confirmed the connection between GRPR and itching, offering the first evidence of a receptor specific for the itch sensation in the central nervous system. The findings are reported this week in Nature through advance online publication. Chronic itching is a widespread prob...

Study shows big power of small RNAs, not just proteins, in halting cancer

...ancerous genetic lesions, CSHL researchers found a connection between changes in the p53 pathway and the loss of a specific family of miRNAs, known as miR-34. The fact that p53 uses miRNAs to stop tumor cell growth reveals a completely new dimension of this critical cancer fighting pathway and its ability to ...

Progress toward an antitumor vaccine

...emie, their method is based on an immunocompatible connection by way of a sulfur atom, namely, a thioether. Epithelial tumor cells have unusually large amounts of mucin MUC1 on their surface. This MUC1, in comparison with its “normal” cousins, is also modified in a very characteristic manner. Mucins are muci...

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

...D, who is the study's first author, to examine the connection between illness and sleep patterns by infecting fruit flies with one of two bacteria - Streptococcus pneumoniae or Listeria monocytogenes. The infected flies lost their "day" and "night" patterns of activity, which are part of the regular changes ...

Corals that can fight global warming may one day help fragile reefs

...ganisms," reported Harvell. However, the precise connection between warmer waters and coral disease is unclear. "It is difficult to pinpoint yet how temperature stress decreases the immune response," said Harvell. "Although corals are near the base of the evolutionary tree, they are complicated animals." Th...

Scientists identify molecular cause for one form of deafness

...r cause for one form of deafness, and a conceptual connection between deafness and the organization of liquid crystals, which are used in flat-panel displays. Within the cochlea of the inner ear, sound waves cause the basilar membrane to vibrate. These vibrations stimulate hair cells, which then trigger nerve ...

Stress may help cancer cells resist treatment, research shows

...ls are exposed to epinephrine. Kulik said that connection between stress and prostate cancer has been largely unexplored. However, recent studies suggest that these laboratory findings may apply to cancer patients. "A study from Canada showed that men who took beta blockers for hypertension for at least...

Common gene version optimizes thinking -- but with a possible downside

...cess," noted Greengard. "This study shows a strong connection between this molecule and human cognition -- and perhaps with schizophrenia." "These first glimpses of DARPP-32 at work in the living human brain build on a quarter century of investigations by Greengard's team that ultimately linked this pivotal ...

University of Alberta researchers unravel intricate animal patterns

...cientists for years. "It is known that there is a connection between the signals animals use to communicate wit...ntre for Mathematical Biology. "But until now, the connection between the complex spatial group patterns that we can see in nature and the different ways animals ...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

...curb the transmission of other STIs often found in connection with trichomoniasis, including chlamydia and gonorrhea, according to the researchers. "Although trichomoniasis is very prevalent as a sexually transmitted infection, it has not received the attention given to other STIs," says Carlton. "Women are ...

Phthalates now linked to fat, related health risks

...ges in the reproductive organs in boy babies. This connection between phthalates and testosterone helped to establish a basis for the study, Stahlhut said. Stahlhut’s group hypothesized that phthalates might have a direct link to obesity, since low testosterone appears to cause increased belly fat and pre-di...

Protein sensor for fatty acid buildup in mitochondria

...e a variety of diseases. "Our study showed the connection between the location of PanK2 in the mitochondria and its role in as a sensor of energy demand," said Yong-Mei Zhang, Ph.D., a researcher in the Infectious Diseases department at St. Jude and the report's senior author. "This is an ideal location for...

Racing neurons control whether we stop or go

... cognitive research and neurophysiology—making the connection between the mind and the brain. "For years, one group of researchers was looking at what neurons are doing, and a different group of researchers was looking at what people are doing," Palmeri, associate professor of psychology, said. "Now there is...

Statin plus cancer drug deliver combo punch to brain cancer cells

...nd cause birth defects in humans and animals. Its connection to anti-cancer efforts grew out of later insights into its blockage of hedgehog, which gets its name from spiky hairs that develop on fruit flies lacking the signal. "We already knew from earlier research that hedgehog controls brain cell survival ...

New dopamine brain target discovered

...n the brain. This is the first time that a direct connection between dopamine and calcium signals has been reported. "This distinct unit provides a novel signalling pathway through which dopamine can impact the function of brain cells", said Dr. George. "This is significant because signalling through ca...

Blocking immune cell action increases Alzheimer's-associated protein deposits

...tory Diseases, the paper's lead author. "This new connection between immune cell function and this debilitating disease suggests potential new therapeutic strategies." While it has been known that the immune system reacts against amyloid-beta in the brain, the relation of that response to the pathology of ...

Anti-fungal drug stops blood vessel growth

...owth,?Liu says, “so there is likely some important connection between cholesterol and angiogenesis.? While the researchers still must tease out exactly how itraconazole works to stop vessel growth, and test it in animals with cancer, they have high hopes for its use. “Itraconazole can be taken orally for fun...

Bacterial response to oxidation studied as toxin barometer

...biologists who work with stress systems. “We saw a connection between what they were seeing in food processing and what we were seeing in wastewater systems.? She discovered that the ubiquitous Gram negative heterotrophic bacteria were being used to monitor food processing systems ?so why not wastewater? A...

Fruit fly gene research may shed light on human disease processes

...cell. Erickson cautions that there is no direct connection between sexual development in flies and that of humans, but the logic driving their cellular and molecular processes is the same. A paper by Erickson and postdoctoral student Frank Avila detailing their work on such processes has been published in th...

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