Tag: "particular" at biology news

Scientists, Using Flies, Trace Genetic Links To Cancer

... same pathway. It was remarkable." One property in particular makes the fly an excellent source for the study ofcancer, Shearn says: The metastatic process is extremely fast. In Shearn's lab,researchers discovered that they could transplant tumorous brain tissue into theabdomen of a female fly and recover huge ...

New Worlds Of Order, Argentine Ants Succeed By Outnumbering The Competition

...y moist regions of the country. They havebecome a particular problem in southern states, where their damage to fruitcrops has been costly. They are probably the most common of thehoneydew-feeding species, and they will farm insects such as aphids, mealybugsand soft scale bugs in order to feed upon their sweet...

New England Journal Of Medicine Reports Calcium Supplements Help Prevent Polyp Recurrence; DMS Led Study

...ge bowel adenomas in people with a historyof these particular polyps. The findings suggest promising measures that arefairly simple and inexpensive to help prevent a relatively common cancer. Dr. John A. Baron, professor of medicine and of community and family medicine atDartmouth Medical School, led this mult...

How Super Are The "Super Aspirins"? -- New COX-2 Inhibitors May Elevate Cardiovascular Risk

... "One option may be for patients who are at particular risk for adversecardiovascular events to combine COX-2 therapies with low-dose aspirin,"FitzGerald suggests. "But this is a strategy that would need to be tested inclinical trials." The current study was performed with Celebrex, the COX-2 ...

Rare Fossil Shows Dinosaurs As Fast, Dangerous

...saur biology than we ever knew before." Of particular importance, the researchers said, is the clear presence ofa complete separation of the body cavity into two parts, one containing thelungs and heart, and the other holding the liver and guts. This sort of body cavity partitioning is only seen...

Human Neural Stem Cells Advance Distant Prospect Of Reseeding Damaged Brain

...nto the type of neuron and gliaappropriate for the particular area. The researchers inserted the gene for a color-producing protein torecognize the human cells embedded in the mouse tissue, raising hope that humanstem cells could also be engineered to express therapeutic genes, as was shownin mice. ...

New Clues To Evolution Of Human Brain

...imates. And yet when scientists went looking for a particular placefor spatial working memory in humans, they couldn't find it. But now, with thehelp of new technologies such as fMRI, we can see where the human brain handlessome of its short-term storage." "The difference has interesting implications for human ...

Gold Finds Life, Energy, Controversy In Earth

... it wasproduced by them. Some researchers, and in particular petroleum geologists, have taken issue withGold's proposal. They are likely to be even more put out by his new book, whichsays that these microbes populate the Earth's interior down to a depth ofseveral miles and that everything we see living on the...

A New Encyclopedia Of Mouse Genes

...ne fragments, is helpingscientists get a handle on particular genes that they want to study. Thedatabase, which is available on the Internet at <AHREF="http://genome.wustl.edu/est/mouse_esthmpg.html"><FONTFACE="TIMES">http://genome.wustl.edu/est/mouse_esthmpg.html , shouldalso be a valuable too...

Fly Tumor Points Way To New Understanding Of Cancer Development

...atgood in terms of the types of tumors caused by a particular mutation." In a commentary on the two papers, cancer researcher Christopher Kemp of theFred Hutchinson Cancer Research Center in Seattle noted that even though manytumor suppressor genes have been identified in flies, they "had not gained broadaccep...

UF Researcher: New Techniques Help Reconstruct Ancient Diets

...es to understand ancient diets andthe ecology of a particular group of extinct mammals," he said. "Thesetechniqu...d. MacFadden believes the reason all these particular species had elongatedteeth is that elongated teeth also existed in their ancestors, who were grazers...

Researchers Identify Molecular Site That Is Key To HIV's Ability To Infect Cells Of Brain, Colon

...ects cells of the brain and colon bybinding with a particular co-receptor, CCR5, located on the surface of some, butnot all, cells targeted by HIV. The finding, reported by a team from the Gladstone Institute of Virology andImmunology at UC San Francisco, suggests a possible target for therapies aimedat prevent...

UCSF/Gladstone Finding May Explain HIV'S Ability To Infect Cells Lacking The Key Target Of HIV: The CD4 Receptor

...lex could be formed without CD4 beinganchored in a particular cell membrane," said Goldsmith. All that mattered was that the outside portion of the CD4 molecule be availablein close proximity to the co-receptor-bearing cell. "With further studies, we even showed that it required only a small fragment ofthe o...

Arctic indigenous leaders, scientists to study reindeer and caribou systems

... These initiatives, whilevaluable, are specific to particular areas and communities. Scientists often conduct such research in the absence of meaningful consultationwith user groups. Thus, there is a critical need for a broad initiative that iscomprehensive in scope, covers the entire arctic region and represe...

Largest Acoustics Meeting In History Expected

...ect pitch, the ability to recognize the pitch of a particular echo tone in isolation rather than in relationto other tones, which is what most human musicians have to do when they hear musical notes. Sabine Schmidt of the University of Munich ( sabi@zi.biologie.uni-muenchen.de ) will describe how this ability ...

Gene Influences Heart Disease And Stroke Risk Factors

.... "Whether a risk is really a risk factor for a particular individual may bedetermined in part by the form of their Apo E gene," she says.The findings are in line with the current understanding of the complexity ofheart disease and stroke because not everyone with many risk factors developscardiovascular dis...

Autoimmune Diseases Study Shows Differences Between Men And Women

... disease: Since some autoimmune diseasesrecur in particular families, there is a strong possibility that these illnesseshave a genetic cause. A person's genetic makeup might play a role in causingthese diseases, or at least make them more susceptible to them. Some earlieranimal studies seemed to indicate th...

A Versatile Signal In Vertebrate Embryogenesis: Wnt-4 Regulates Kidney Development, Sex Organ Differentiation, Neuronal Survival And Axonal Guidance

...obiology he could demonstrate that Wntproteins, in particular Wnt-4, can mimick the ectodermal signal and induce NT-3expression in isolated limb bud mesenchyme. These studies have identified Wnt-4 as a key signalling molecule mediatingtissue interactions in developmental contexts as diverse as kidney developme...

Plastics - Easier To Recycle Than Commonly Thought

...Researchershave found that adding large amounts of particular sorts of "contamination" intoa granulated plastic has very little effect upon the physical properties of theproduct once it is re-moulded back into another product. This could mean thatproducts that are functional but not necessarily sterile or aest...

Genetic Mutations Linked To Rare Metabolic Disease

... the protein -- it just changes a particular amino acid,proline, to leucine." The actual shape of protein molecules plays a major rolein how they function. Proline normally causes a bend in the protein ...

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