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Tag: "helped" at biology news

Spleen may be source of versatile stem cells

...at we'd found aboutislet cell regeneration in mice helped us find this previously unknownexample of normal, controlled Hox11 expression in an adult mammal."Co-authors of the SAGE KE report are first author Shohta Kodama, MD,PhD, of the MGH Immunobiology Laboratory, and Miriam Davis, PhD, ofGeorge Washington...

Learning to fight an adversary that won't stay down

...ever, the mapping of bacterial genomes has not yet helped yield solutions to the problem, says Dr. Davies. He adds that our understanding of the activity of microbes must extend beyond the newspaper headlines reporting outbreaks of these "superbugs," so that we can put the role of these organisms in the pr...

Mouse brain tumors mimic those in human genetic disorder

...n children with NF1, and studying those tumors has helped usunderstand the cellular events involved in NF1 b...pment of blood vessels and recruitmentof microglia helped trigger tumor formation or if they appeared onlyafter the tumor was fully developed. The researchers...

New Clues Add 40,000 Years to Age of Human Species

...ists collected hundreds of new mammal fossils that helped differentiate layers of sediment and link the currently dry region to its moister climates of the past. But, precisely dating the outcrops required volcanic minerals with elements that undergo radioactive decay. Brown and McDougall collected rocks ...

Scientists collaborate to assess health of global environment

...k of adequate data to uphold such treaties is what helped convince the United Nations to initiate the program, he added. Case studies In September, the assessment team will release five technical reports totaling nearly 2,500 pages and focusing on the ties between ecosystems and human well-being. A set of...

Scientists decipher genome of fungus that can cause life-threatening infections

...tional Institutes of Health. Numerouscollaborators helped to interpret and analyze the genome sequence data.C. neoformans, an oval-shaped yeast, is an opportunistic human pathogenof global importance that is used by researchers as a model for fungalpathogenesis. Since the 1980s, the number of Cryptococcus i...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...ell interior. Previous work at Dr. Ryan's lab has helped clarify the role of some of the key players in this process, including a ubiquitous protein called clathrin, found in nearly every cell type. "From our previous work in brain synapses, we've learned that endocytosis is a machine that really runs qui...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...egory P. Samsa, a Duke University biostatistician, helped analyze the data. "These findings are important because health-care associated infections rank in the top five causes of death, with an estimated 90,000 deaths each year in the United States," Rutala said. "Hand hygiene agents have been shown to red...

Nano-Probes Allow an Inside Look at Cell Nuclei

...ces Division and Associate Laboratory Director who helped pioneer the development of nano-sized crystals of semiconductor materials. Called quantum dots, these microscopic crystals have shown promise in such wide-ranging applications as solar cells, computer design, and biology. In 1998, for example, Alivis...

New insight into people who 'see' colors in letters and numbers

...ment, the researchers found that synesthetic color helped the synesthetes pick out specific numbers or letters in a crowded display. The researchers found that the synesthetic colors really did help the synesthetes distinguish the shapes or graphemes, compared to normal control subjects who were tested on ...

Measuring the impact of post-genomics on Mediterranean populations

...presenting the Research Directorate-General, which helped support the event, gave an overview of the EU-MPC programme: its past, present and future. Round table discussions were organised later that day on how the EU-MPC co-operation is working to alleviate communicable and non-communicable diseases in the ...

Sequencing of marine bacterium will help study of cell communication

...y within the light organ of the bobtail squid, has helped a Virginia Tech microbiologist advance her research on quorum sensing, or how cells communicate and function as a community. Researchers studying the newly sequenced genome of the marine bacterium V. fischeri, described this week in the Proceedings ...

Antibiotic might fight HIV-induced neurological problems

... treatment for HIV." The animal model has already helped improve understanding of how HIV might affect the brain, and this is the first time it's been used to test a potential treatment. Studies with the animals are augmented by laboratory experiments with cells to clarify observations. Notably, these lab...

Surprising findings reported about iron overload

...s 1,500-3,000 years ago, and the mutation may have helped them survive iron-poor diets." Hemochromatosis or iron overload occur in 0.3-0.5 percent of white persons of northern, central, and western European descent. In fact, a health-screening program conducted by Barton and Acton at an Alabama forest prod...

Gene therapy promising for growing tooth-supporting bone

...ctor protein into a mouth wound using gene therapy helped generate bone around dental implants, according to a new paper in the February issue of the journal Molecular Therapy. In a patient with a sizeable mouth wound, replacing a tooth takes more than simply implanting a new one---the patient also needs t...

Small species back-up giant marsupial climate change extinction claim

...inking small in a time when everything was big has helped Queensland researchers to unearth new evidence that climate change, instead of humans, was responsible for wiping out Australian giant marsupials or megafauna 40,000 years ago. Instead of only excavating 'trophy specimens' such as giant kangaroos an...

Test for early detection of prostate cancer shows promise

... of PSA testing and digital rectal examination has helped doctors identify prostate tumors early, while the cancers can still be cured. But PSA testing, like many disease-screening procedures, misses some cases of cancer and in other cases erroneously highlights noncancerous conditions. “This new blood tes...

New tumor-suppressor gene discovered

...gene was most likely to occur. "Genetic techniques helped us to narrow our search for this fly's mutation to a few candidate genes within a very small part of one huge chromosome," Lai explains. The scientists narrowed the tumor-causing candidates down to two genes, then performed molecular-biology experime...

Measles Deaths Worldwide Drop By Nearly 40% Over Five Years

...ve has mobilized more than US $144 million and has helped African countries vaccinate over 150 million children against measles. Other key partners include the governments of Australia, Canada, Japan and the United Kingdom as well as the International Federation of Red Cross and Red Crescent Societies, the...

The biggest family tree ever

...sists. Cusanovich had his own DNA analyzed, which helped him trace his family to a time "when the crusaders were rolling through the Middle East." Many people conduct genealogical research, said Cusanovich, a UA professor of biochemistry and molecular biophysics and a professor in BIO5. "If you ask around ...

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