Tag: "structures" at biology news

Molecular motor implicated in tissue remodeling

...ther, they create a relation between cells and the structures in the matrix. It's a very elegant system." ...

Chemical derived from vitamin-E shows early promise as cancer drug

...cked any microscopic signs of cancer, though these structures are where the cancer would likely spread. Only four percent of lung-related lymph nodes in controls were cancer-free. Treated mice that did develop microscopic signs of cancer in the lymph nodes had only one or two lesions, rather than the six or sev...

New molecular link key to cellular proteins involved in cancer progression, other diseases

...NA is wrapped tightly around nucleosomes, globular structures composed of four abundant proteins called histones, Zhang said. "Histone proteins, including H2A, are important in two ways. One is to package genomic material into the nucleus and the other is to regulate processes involving DNA including gene expre...

Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria

...imple salt compound produced these unique nanotube structures with antimicrobial capability is described in a pa...t can change color) and the unpolymerized nanotube structures were effective antimicrobials, completely killing all the E. coli within an hour's time. "We are ve...

A long-necked sea predator from China described in Science

... Though protorosaurs with more extensive bony limb structures would have had an easier time on land, Chun Li said Dinocephalosaurus may have ventured onto land to lay eggs. To breathe, Dinocephalosaurus probably held its neck parallel to the water's surface. Extending the head and neck vertically to gulp air wo...

$2.7 million grant to support creation of virtual zebrafish atlas

... and will provide three-dimensional images of body structures such as organs. "There has been phenomenal growth in the zebrafish research community due to the zebrafish's compelling experimental characteristics and its capacity to model human disease," said Cheng, who is working with co-investigator Stephen Mo...

UAF scientists discover new marine habitat in Alaska

...ium carbonate within their cell walls to form hard structures that closely resemble beds of coral. But unlike coral, rhodoliths do not attach themselves to the rocky seabed. Rather, they drift like tumbleweeds along the seafloor until they grow heavy enough to settle and form brightly colored beds. And while co...

Martin Saunders to receive the James Flack Norris Award

...his seminal contributions to the NMR spectroscopy, structures and rearrangements of carbocations, for a new methodology for conformational search, and for the study of fullerenes, containing noble gas atoms. Saunders created new methods for studying carbocations -- one of the three main species of reactive in...

TANGO: towards faster prognosis of Alzheimer's and Parkinson's diseases?

...imer's. TANGO makes prediction of faulty protein structures possible Until recently, it was always thought that proteins stick together arbitrarily. But now it has become clear that a universal mechanism lies behind this process. Certain structural characteristics in proteins determine their susceptibility t...

There and back again

...tes early in embryogenesis. Somites are transitory structures that appear in a head-down direction in strictly timed and ordered pairs as the chicken develops, dividing the embryo into body patterning segments, and later giving rise to the vertebrae, ribs and the muscles of the trunk. The presomitic mesoderm, f...

Images of 'tail' of protein needed for cell multiplication suggest anticancer drug targets

... the groove along E1 the tail fits into make these structures potential targets for new drugs. "Novel drugs that are designed to disrupt the tail, the groove or both might block the ability of the NEDD8 pathway to accelerate replication of cancer cells." The extensive study required a variety of techniques to ...

Maine-based biophysics institute gets funding for first US-based 4Pi nanoscale microscope

...ill enable the IMB researchers to examine specific structures within a cellsuch as a single gene on a chromosome...ng this microscope to image large, multi-molecular structures migrating within and across the cell membrane. For example, a recent discovery at MMCRI indicates th...

Extreme stretch-growth of axons

...nternal skeleton and a full complement of cellular structures called organelles in the stretched axons. "Surprisingly, the axon appears to be invigorated by this extreme growth," says Smith. "It doesn't disconnect, but forms a completely normal-appearing internal structure." These extreme rates of growth are n...

Imitative parrots just might tell you it's all in the tongue

...s, Suthers andNelson hope to learn more about what structures are responsible for thatvariation in both birds and humans....

As informatics grows, Indiana University helps set 'research agenda'

...tten software that correctly predicts the chemical structures of effective pharmaceutical drugs. Leading informaticians from the United States, Sweden and the United Kingdom will come to the IU Bloomington campus next week to decide where their field should be going as part of a conference, "Informatics: Defin...

Skin stem cells give hairless mice hair

...And, while they've had evidence that hair follicle structures were forming, they didn't see generation of hair. "In contrast, in our experiments, we saw quite a density of hairs, in some cases at a density that's very similar to that of normal mouse fur," said Fuchs. "While we are not yet able to achieve such ...

Humans march to a faster genetic 'drummer' than primates, UC Riverside research says

...drum beats faster." This chemical analysis of DNA structures also showed something else. The spread of the Alu DNA repeats was written into the chemistry of human chromosomes. The process was not random, Dugaiczyk said, and it was not subject to an environmental "natural selection," separating winners and lose...

Winner of 2004 EMBO Science Writing Prize announced

...lecolare focuses on biophysical studies of protein structures involved in chromatin structure or transcription. The young researcher's first post-doctoral position at EMBL in Heidelberg was supported by an EMBO Long-Term Fellowship. Asked to elaborate on the inspiration behind his text, Bottomley commented tha...

Probing the surface of white blood cells to enhance immune system medicine

...the research indicates that microvilli are dynamic structures that rapidly alternate between states of assembly and disassembly. This means that if researchers were able to biochemically dissect mechanisms by which microvilli assemble and segregate, they would be able to use this knowledge to develop immunosup...

New tool predicts how long pollutants will stay in soil

...equation works very well with complicated chemical structures like pesticides and pharmaceuticals." Her faculty advisor, William P. Ball, a professor in the Department of Geography and Environmental Engineering, said, "We've had a generally positive reaction to this technique so far." He added that the research...

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