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Tag: "major" at biology news

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

...This is the first systematic mapping of all of the major brain areasthat shows what regulatory genes are expressed in those specificlocations,?said Quifu Ma, PhD, of Dana-Farber’s Cancer BiologyDepartment. He is senior author of a paper appearing in today’s onlineissue of the journal Science, along with Ch...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...ied to brain disorders, cardiac illness, and other major conditions. He pointed out that clathrin is also important to cellular mechanisms other than endocytosis, including those occurring deep inside the cell. "Now that we have a better handle on this relationship, we're going to go beyond looking at cl...

Probing The Promise And Perils Of Nanoparticles

..., Hong and Leroueil will discuss is one of several major research programs under way in the U-M Center for Biologic Nanotechnology—a multi-disciplinary group includes researchers from the Medical School, the College of Engineering, and the College of Literature, Science, and the Arts, and focuses on biomed...

Same mutation aided evolution in many fish species, Stanford study finds

...larger study to understand how evolution generates major morphological and physiological changes. "We want to learn how evolution works on a large scale," he said. In previous work, his group found that several species of stickleback lacking hind fins all shared an alteration in how a gene was turned on an...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...n islands since 1971, said most of the islands had major breeding colonies of seabirds before the arrival of foxes. There are about 26 species of seabirds that regularly nest on the islands, he said. They include surface nesters, such as gulls and terns, that lay their eggs on the ground; burrow nesters, s...

Researchers trace evolution to relatively simple genetic changes

...ow found that changes in a single gene can produce major changes in the skeletal armor of fish living in th...es in many different genes are required to produce major changes in wild populations." The answer, based on new research, is that evolution can occur quickl...

Scientists reveal molecular secrets of the malaria parasite

...audi and P.berghei), the scientists found that the major differences between themalarial species are found in the virulence factors (which are at thechromosome ends) while the "housekeeping" genes are almost totallyunchanged. * Researchers showed that the parasite genes evolve mostrapidly when they are exp...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...ow found that changes in a single gene can produce major changes in the skeletal armor of fish living in th...es in many different genes are required to produce major changes in wild populations." The answer, based on new research, is that evolution can occur quickl...

Development of portable infectious disease detector

...compounds with extreme rapidity and socould have a major impact on the drug discovery process.Fifteen years ago a number of start-up companies were created to makethe goal of creating a "lab-on-a-chip" a reality. However, puttingmicroscopic arrays of channels, pumps and valves to move around minuteamounts ...

Scientists document complex genomic events leading to the birth of new genes

...le for primate or human distinctiveness has been a major challenge to scientists. However, this work by Bork and his colleagues should further enable studies focused on the molecular basis for species specificity. "A thorough functional characterization of the other 21 new genes we've identified in this st...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...wed vigorously despite being relatively thin. One major implication of the research, he said, is that it disputes the theory that West Antarctic ice streams retreated when the ice shelf did. In the last ice age, the ice streams near Siple Dome had to be roughly where they are now to keep the dome from bui...

UCSD discovery may help extend life of natural pesticide

...ut the development of insect resistance to Bt is a major threat to its long term use. Our findings make it possible to understand resistance at the molecular level and should improve resistance management." In collaboration with Paul Cremer and Tinglu Yang, coauthors on the paper and chemists at Texas A&a...

Scientists identify new model Of NK cell development

Scientists here have made a major discovery that sheds new light upon the growth and...fully so we can help patients," says Caligiuri. A major arm of the body's defense system is made up of lymphocytes, cells that fall broadly into three categ...

White blood cell waste disposal system plays critical regulatory role

...ped considerably. The researchers conclude that a major mechanism for regulation of neutrophil production involves secretion of IL-23 that is regulated by phagocytosis of apoptotic neutrophils. "The discovery of neutrophil-regulating cells suggests new ways to manipulate the inflammatory system and neutro...

NJIT Presidential Award winner takes stem cell research another step

... damaged tissue. Her research has also led to two major stem-cell discoveries: One showing that stem cells, when mixed with biomaterials known as scaffolds, can help regenerate bone growth; and another proving that stem cells taken from one person can be successfully implanted into another. A list of cond...

RNA project to create language for scientists worldwide

...ile others study their 3-dimensional structures. A major focus of the project will be to integrate the databases of RNA sequences and 3D structure. Leontis has experience in both areas. An affiliate of the BGSU Center for Biomolecular Sciences and the Northwest Ohio Bioinformatics Consortium, he is known ...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...to manage the land in a sustainable way." Several major development projects have been initiated, aimed at...ces they used and did not have the means to induce major environmental changes, such as altering the flood pulse by building dams or changing water quality b...

Falling ants glide back to trunk to avoid dangers of forest floor

... end up as fish food. "That's what I think is the major evolutionary driving mechanism behind the behavior," he said. "In Amazon forests, you really don't want to fall out of your tree and in the water, because then you're definitely dead." After capturing some quick video snippets with his digital still...

Family trees of ancient bacteria reveal evolutionary moves

...obal glaciations, and the fossil record reflects a major shift in the number of organisms metabolizing sulfur and a major shift in carbon cycling. "The question is: Why?" said Blank. "My contribution is the attempt to fin...

Scientists find fossil proof of Egypt's ancient climate

...ramatic shifts in climate," said Smith. "This is a major theme of our work, and we hope that some of our findings can give us perspective on what we're facing in the coming centuries." ...

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