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Tag: "unique" at biology news

Tweedle coat fashions stocky flies

...archers say, because the gene family appears to be unique to insects. "We've discovered Tweedle genes in all insect species we've examined, but not in any other species," said Xiao Guan, a graduate student working with Wasserman and first author of the study. ...

Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer

...owed an excellent safety profile. Mayo Clinic is unique in its pursuit of oncolytic measles vaccine strains for cancer treatment, and the research has grown from the most basic laboratory science to the sophisticated therapy being tested today in several tumor types, including glioblastoma multiforme, rec...

Researchers discover how bacteria sense their environments

When humans taste or smell, receptors unique to each nerve cell detect the chemical and send signals to the brain, where many cells process the message to understand what we are smelling or tasting. But a bacterium is just a single cell, and it must use many different receptors to sense and int...

'Cellular antennae' on algae give clues to how human cells receive signals

...udies on Chlamydomonas will help us understand the unique qualities of cilia that have led to their use in chemosensory pathways in humans." ...

New strategy developed to combat West Nile Virus

...s. "Drought-induced amplification may be somewhat unique to southern Florida, where drought tends to occur in the spring and coincides with the birds' nesting season," Shaman said. "The mosquito situation itself also is somewhat unusual. In most areas of the country, one species of mosquito infects the bir...

Study provides first look at the 'birth' of a retina cell

... that are fated to become rods. They achieved this unique and early view of rod development by creating a mouse model using an NRL regulatory DNA sequence to produce a protein that appears as fluorescent green when exposed to blue light. This fluorescent protein allows scientists to identify even a few cell...

Robots manipulating animal behaviour

... and natural agents ?a two-way interaction that is unique and very promising for sciences such as biology and robotics." Not only did the insbots act like and interact with the insects, they even succeeded in changing the roaches' behaviour. For example, the darkness-loving insects followed their artifici...

Patients to benefit from novel technology revolutionizing high-speed molecular imaging

...dose, and personalized scanning takes into account unique patient physiology and anatomy, he added. "Simultaneous imaging of a combination of radiopharmaceuticals can be used to define a specific disease signature leading to noninvasive biopsy," he detailed. The D-SPECT camera will provide "a potential brea...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

... Nature Reserve has given Colombia and the world a unique jewel that will prevent the extinction of threatened species of birds and frogs found nowhere else on the planet." El Dorado is the sole breeding ground of the Endangered Santa Marta Parakeet, and home to five threatened amphibians found nowhere els...

OHSU study says stem cell 'fusion' occurs in tumors

...the male recipient cells Wong said, "Our paper is unique because it's the first example that cell fusion occurs in the epithelial compartment of a tumor." Other OHSU studies in recent years are giving weight to the fusion theory. A series of discoveries since 2000 by study co-author Markus Grompe, M.D., p...

Evolutionary forces explain why women live longer than men

...ionary history." This skewed mortality isn't even unique to our species; the men come up short in common chimps and many other species, Kruger added. Kruger and co-author Randolph Nesse, a professor of psychology and psychiatry and director of the Evolution and Human Adaptation Program, argue that the d...

Potato blight pathogenicity explained by genome plasticity

...e of Genome Research that they have identified a unique genetic fingerprint in the pathogen responsible for potato blight. Some strains of the pathogen possess multiple copies of a specific gene, while other strains possess only a single copy. Certain potato plants do not recognize strains of the pathog...

NYU algorithm enhances ability to detect cancer genes

...int statistical score function. Their algorithm is unique in that it exploits the high resolution of gene-ch...f many "probes"--each one characterizing an almost unique word and its location in the already-sequenced human genome--by combining these probe-measurements, ...

Species unique to tidal marshes face threats

...pport few nonaquatic vertebrate species, but their unique characteristics have led to the evolution of species and subspecies that are endemic (found nowhere else). These endemic species and subspecies, which seem to be largely restricted to North America, have adaptations that suit them to life in a harsh ...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...ePamphilis says. Angiosperms also boast plenty of unique biochemistry. "They're a rich source of medicinal compounds. Even the kind of wood they make is special." The new results support the idea that "whole-genome duplications are rare in vertebrates, but common in plants," according to dePamphilis. I...

The Midas Bug -- the bacterial alchemy of gold

...m identified 30 bacterial species with populations unique to the gold grains when compared to the surroundin...nsims, I observed active gold precipitation. "A unique attribute of R. metallidurans is that it is able to survive in concentrations of gold that would kil...

Biologists find regions of rice domestication

... and jocote, a tropical fruit. "You find that the unique signature of cultivated rice is only found in certain geographic regions. And that's how you make the determination of where it came from." Schaal said that she was surprised and "delighted" by their results. "People have moved rice around so much...

How bad is malaria anemia? It may depend on your genes

... a growing amount of evidence that an individual's unique genetic makeup can affect the prevalence and outcome of diseases, in this case the individual risk of malarial anemia. A number of human proteins, including MIF (which stands for migration inhibitory factor), were long suspected to cause malarial a...

Links between DNA damage and breast cancer studied

... disrupt gene expression. The team identified a unique oxidation-induced lesion in the DNA of breast epithelium, myoepithelium and stroma and found that the highest concentrations of this lesion tended to occur in women in the 33- to 46-years age group, a bracket that corresponds to a known rise in the i...

New research finds surveys of larval-stage organisms effective for measuring marine biodiversity

...er groups is likely even more poorly known. What's unique about this study is that we didn't just discover new species, we used DNA barcoding to quantify how much biodiversity is out there that we don't know about." According to Barber, the results suggest that examining marine life in the larval stage off...

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