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Tag: "confirm" at biology news

Predators keep the world green, ecologists find

...he Environment and Earth Sciences. Their findings confirm the answer to one of ecology's oldest and thorniest questions: why is the world green? It also seems to put to rest a competing theory that plants protect themselves from herbivores through physical and chemical defenses. The researchers drew their ...

Argonne researchers confirm lead in Beethoven's illness

...e amounts of lead found in his hair. These results confirm the cause of his years of chronic debilitating ill...agues at the Advanced Photon Source. The findings confirm the earlier work done on the hair samples. In addition, the researchers found no detectable levels o...

UCLA discovery will aid in treatment of patients with a deadly brain cancer

... variation, surviving 253 days versus 50 days. To confirm their promising work, Mischel and his team obtained tissue samples from 33 brain cancer patients treated at another facility without knowing who the responders were. They were able to independently replicate their results, confirming that those with ...

Gene variation affects tamoxifen's benefit for breast cancer

...h group conducting a prospective clinical trial to confirm whether genetic testing can be used to identify patients likely to respond to endocrine therapy, including tamoxifen. This group is led by David A Flockhart, M.D., Ph.D. at Indiana University School of Medicine. More than 210,000 women in the United...

Olfactory system detects pheromones that control reproduction

...the vomeronasal system, which led us to attempt to confirm the experiment on a wide range of mice," she said. As a control, the researchers performed a separate set of experiments using a non-conditional strain of the pseudorabies virus. These studies confirmed that the virus was capable of infecting all nu...

New technique multiplies life span in simple organisms

...an cells with reduced SIR2 activity also appear to confirm that SIR2 has a pro-aging effect, Longo said, although those results are not included in the Cell paper. Since all mammals share key aging-related genes, the paper points to a new direction for human anti-aging research. Longo proposes that SIR2 an...

Bacterial protein mimics host to cripple defenses

...p and "recycle" the ubiquitin-tagged proteins. To confirm that AvrPtoB was a molecular mimic, Martin and Abramovitch altered parts of the protein that correspond to crucial sites on ubiquitin ligase. These changes rendered Pseudomonas harmless to susceptible tomato plants, and made the purified protein inac...

Double trouble: Cells with duplicate genomes can trigger tumors

...ilar chromosomal irregularities. The new findings confirm a far-sighted notion of Theodor Boveri, a German scientist of the 19th Century who was one of the discoverers that the chromosomes in the nucleus of the cell carry the material of heredity, or genes. In 1914, he published what Pellman calls an "amazi...

Restaurant seafood prices since 1850s help plot marine harvests through history

... these species became a status symbol. It seems to confirm that many people simply want to eat something that is rare." Some 200,000 restaurant menus have been uncovered by the research team in various archives, primarily in New England. Of these, many are banquet menus showing only the food served; Dr. Jon...

PLoS Medicine publishes first trial of effect of male circumcision on HIV infection

...rtant to see whether the related studies under way confirm the results of this trial. The trial, conducted...ion in HIV acquisition, more research is needed to confirm the reproducibility of the findings and of this trial and whether or not the results have more gener...

Customized gene chip provides rapid detection of genetic changes in children's cancer

...omosomes with loss in DNA, the technology may help confirm a clinical diagnosis, said Saul Surrey, Ph.D., professor of medicine and Associate Director of Research at the Cardeza Foundation for Hematologic Research and the Division of Hematology at Jefferson Medical College. If a clinical diagnosis isn't know...

Oldest dated evidence of cattle in southern Africa found

...uthern Africa. The new dates support this view and confirm a long-term association between people and livestock in this part of the Kalahari. The discovery of the 2000 year old cow and sheep bones are important because of the long held view that the Kalahari was a comparatively isolated area that was primari...

New antibody shows promise as cure for anthrax

...he and his collaborators are doing more studies to confirm that. The researchers also plan to conduct additional tests to determine how the antitoxin eliminates anthrax bacteria, which is still unknown. They have two hypotheses, which might both be part of the full story. One hypothesis is that the antitoxi...

Techniques available to detect soil that inhibits destructive soybean pest

...ute to nematode development. Westphal was able to confirm the nematode supressiveness of soil by using treat...age, so soil and roots must be tested to reveal or confirm the pests' presence. Infestation gradually causes progressively lower yields and the worst cases res...

New technology shows our ancestors ate…everything!

...ricanus and Paranthropus robustus, the researchers confirm previous evidence that A. africanus ate more tough foods, such as leaves, and P. robustus ate more hard, brittle foods. But they also revealed wear patterns suggesting that both species had variable diets. "This new information implies that early hum...

Old drug shows new promise for Huntington's Disease

...ithin the cell. Massa hopes these experiments will confirm initial indications that Clioquinol preferentially interferes with synthesis of the toxic form of the protein. "Then we can move on to trying to isolate the actual mechanism of the drug," he predicted. "However," Massa cautioned, "the record of suc...

Researchers develop new testing methods for potential monkeypox or smallpox outbreak

... unconfirmed, until now. The test the CDC uses to confirm monkeypox cases requires that the virus be directl...tly diagnose previously confirmed cases as well as confirm several probable,suspect cases of monkeypox that had remained unconfirmed for the last two years. Mo...

Scientists discover genetic pathway responsible for breast cancer cell growth

...nd more recently with Herceptin for breast cancer, confirm that the efforts of researchers like Dr. Giguere and his team save lives and money. These connections between research and health care are one of the strengths of academic hospitals like the MUHC." ...

UCLA scientists reveal how Nipah virus infects cells

...rin-B2 as the receptor that bound to the bait. To confirm their findings, the UCLA team engineered a harmless virus with Nipah virus proteins embedded in its coat. The decoy virus successfully infected cells vulnerable to the Nipah virus, but could not infect Nipah-resistant cells. In the final step, the d...

DNA from feathers tells tale of eagle fidelity

...hers led a team of Purdue University scientists to confirm that eagles from central Asia are quite possibly t...ple partners. Not only is this study the first to confirm monogamy in eagles, more importantly, it also is the first to rely on feathers collected "noninvasiv...

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