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Tag: "reveal" at biology news

Forsyth scientists gain greater understanding of how embryos differentiate left from right

...he left right axis of three different vertebrates, reveal mechanisms both upstream and downstream of its activity, and identify a novel role for this important ion transporter. Based on these observations, they proposed a detailed pH- and Vmem-dependent model of the early physiology of left/right patterning...

Minor mutations in avian flu virus increase chances of human infection

... The study was careful to note that these results reveal only one possible route for virus adaptation. The study concluded that other, as yet "unidentified mutations" could emerge, allowing the avian virus to switch receptor specificity and make the jump to human-to-human transmission. The glycan microar...

In the mind's eye: How the brain makes a whole out of parts

...tion processing. Such experiments are beginning to reveal how large networks of neurons in the brain extract meaning from the eye image." ...

Commonly used antidepressants may also affect human immune system

...ture of this interaction. "The novelty is that we reveal a potential communication, involving the transmitter serotonin, between immune cells that is normally only found between neurons," Ahern said. In addition to Ahern, Peta Connell, Ph.D., from the Robarts Research Institute in Canada, was also a co-le...

Next good dinosaur news likely to come from small packages

...ike conventional paleontologists, the search is to reveal the history of life on Earth. But tacking on proteomics means scrutinizing life at a molecular level ?life that existed thousands of years ago. Ostrom's work has spanned from examining organic matter in meteorites to reconstructing who eats who in t...

'Executive' monkeys influenced by other executives, not subordinates

...t their bosses, said the researchers. The findings reveal that gaze-following is more than a reflex action; that it also involves lightning-fast social perception. Such a discovery in monkeys gives the researchers an invaluable animal model that enables them to tease apart the reflexive-versus-social mecha...

Clues to breast cancer hidden inside stem cells

...ve grown three-dimensional breast cell cultures to reveal unexpected subtleties about these stem cells that could explain why they spawn malignancies. These stem cells, Valgardur Sigurdsson remarked during the EuroSTELLS Conference in Venice, Italy (19-21 March), could become targets for cancer treatment,...

The closest look ever at the cell's machines

... at EMBL used sophisticated computer techniques to reveal the modular organisation of these cellular machines. "This is the most complete set of protein complexes available and probably the set with the highest quality," Aloy says. "Most proteomics studies in the past have shown whether molecules interact o...

Ernst Mayr's theory illustrated in genetic epidemiology studies

... that his CAD studies in human founder populations reveal interactions between two important genes involved in high cholesterol, the Apolipoprotein E (APOE) gene and the Low density lipoprotein receptor (LDLR) gene. Interestingly, it has been found that the protein products of these genes physically inter...

UCLA scientists find male gene in brain area targeted by Parkinson's

...It's possible that dopamine-related disorders that reveal dramatic differences in severity and rates in the genders could depend on the SRY levels in the brain," he said. ...

Oceans are 70 percent shark free

...of researchers, led by the University of Aberdeen, reveal that sharks have failed to colonise at depths greater than 3,000 metres. Sharks occur throughout the world's oceans and it had been hoped that as man explores deeper into the abyss and beyond throughout the largest environment on the planet - new sp...

Ultrasounds show mothers' drinking shrinks fetal brain

... growth remained within normal range, the findings reveal effects of drinking on the developing human brain. The study will appear in the May issue of Alcoholism: Clinical and Experimental Research . "What this tells us is that the earlier you abstain in a pregnancy, the better the outcome," said lead au...

Picking apart how neurons learn

...ptors, but only in this most recent study did they reveal how. The investigators used individual nerve cells as well as brain slices from three different populations of genetically modified mice lacking different proteins required for establishing LTD. Mice lacking the PICK1 protein are unable to establ...

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...groups as in the placebo group Lab tests did not reveal any clinically significant abnormalities The vaccine, made from an inactivated H5N1 virus isolated in Southeast Asia in 2004, was manufactured by sanofi pasteur, Swiftwater, PA, under contract to NIAID. Because there are no manufacturers licensed i...

Technique makes it easier to see mouse embryo in all its glory

...ing the three-dimensional aspects of the embryo to reveal pertinent biological information. Under the new method, the intact embryo is stained to distinguish tissues (organs, developing bone and soft tissue) and is digitally scanned at high resolution using x-ray computed tomography. Computational methods a...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

...ounseling are needed. "Other studies by this team reveal that only half of female sex workers and one third of injection drug users in Tijuana have ever had an HIV test," said Carlos Magis-Rodriguez, M.D., M.P.H., co-author of the study and Director of Epidemiology at CENSIDA, Mexico's federal HIV/AIDS age...

A salty tale: New bacterial genome sequenced from ancient salterns

...e Institute for Genomic Research and collaborators reveal the genome of one bacterium at home in the salty Spanish ponds. The bacterium is Salinibacter ruber, a bright red, rod-shaped organism. Several years ago, scientists first isolated S. ruber from saltern crystallizer ponds in Alicante and Mallorca, S...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...wide quest for feather and bone samples that would reveal the body chemistry of condors through the ages. "This work was fun," Chamberlain recalls. "First we got modern feathers from the Ventana Wildlife Society in Big Sur, Calif., and other groups involved in the federal Condor Recovery Program. Then I sta...

UK sperm donor crisis

...ive medicine journal Human Reproduction[1]. They reveal that 88% of applicants were aged under 36, more than half were students without a partner, 85% were unmarried and over three-quarters had no children. Nearly a third had defaulted along the way and almost two-thirds were rejected (85% of those becaus...

Image of myosin-actin interaction revealed in cover story of Molecular Cell

...team, led by Dorit Hanein, Ph.D., was the first to reveal the 3D representation of myosin V "walking" along actin filament, a key protein involved in motility and muscle contraction. Using electron-cryo microscopy to take 3D snapshots of myosin V and actin interacting, researchers were able to see myosin V...

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