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Tag: "study" at biology news

Gene variations explain drug dose required to control seizures

...vary substantially, they added. Rigorous clinical study is required before any such method could be put in...ine and phenytoin, to the drugs' clinical use. The study is the first to emerge from a partnership, aimed at tailoring the treatment of epilepsy to patients'...

Solution to Pollution: New Bacteria Eats Toxic Waste

...ract from the U.S. Department of Energy to further study the bacteria. Sims discovered the microbes on a landsite in Libby, Mont. contaminated by chemical carcinogens called polycyclic aromatic hydrocarbons (PAH’s). The site had been used by industry as a place to apply preservatives to wood, yet Sims foun...

Scientists collaborate to assess health of global environment

... be released in late 2005 or early 2006. Each case study will focus on a particular area, Mooney said. "This is really important because the global view gives averages, and global averages may be misleading," he said, noting that different ecosystems face different issues--overfishing in the Caribbean, fo...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...l occur in about one in 5,000 births. The current study is part of a large, collaborative effort at Duke University Medical Center to find an effective treatment for Pompe disease. The Duke team earlier developed enzyme replacement therapy, in which a normal version of the faulty enzyme in those with the ...

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

... we established a genomic platform for the further study ofthis increasingly important pathogen, but the da...py to prevent rejection of transplantedorgans. One study indicated that as many as 13 percent of AIDS patientssuffer a life-threatening cryptococcal infectio...

Needling Chromosomes Reveals Cell Division Secret

...visible separateness and physical separateness."To study chromatid adhesion, Paliulis mastered the high art ofmanipulating two infinitesimal glass needles to impale each of twosister chromatids in cultured grasshopper cells at the appropriate timein cell division. Then, she would ever-so-gently apply force...

Poplar trees redirect resources in response to simulated attack

...khaven's role in the research. "This enables us to study the effects of external factors like insect attacks, disease, elevated carbon dioxide, soil toxins, and drought on vital plant processes." Ferrieri says scientists trying to improve plants' resistance to environmental challenges -- or their ability ...

Purdue proves concept of using nano-materials for drug discovery

... prototype for a new class of miniature devices to study synthetic cell membranes in an effort to speed the... small amount of protein. "It's been very hard to study these proteins because they are difficult to produce in large quantities," Lee said. "The devices we...

Plant hemoglobins: Oxygen handlers critical for nitrogen fixation

...ce of these proteins in plants. The results of the study indicate that symbiotic hemoglobins are important for oxygen transport and energy metabolism in plant root nodules. Furthermore, these proteins help to maintain free-oxygen concentrations in nodules at levels low enough to avoid damage of oxygen-sens...

Scientists rid stem cell culture of key animal cells

... on the heels of a recent University of California study showing that existing stem cell lines are already contaminated with an animal molecule. The potential threat of animal pathogens tainting human stem cell lines poses a problem for the safe clinical use of many, if not all, of the current cell lines n...

Experiments provide proof of how traveling in groups protects insects

...search, supported by the USDA, is part of a larger study designed to learn whether scientists can predict and possibly change the path of massive insect bands, he said. "In the United States nowadays, Mormon crickets just cost farmers and others a lot of money, but in parts of Africa and elsewhere, locust...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

...logy (M.I.T.). They did the largest, most detailed study to date of the protein structure that surrounds the human genome. Their findings reveal surprising and previously unknown specifics of how genes get switched on during development of the human body and in diseases such as cancer. "Each type of cell...

Vital step in cellular migration described by UCSD medical researchers

...nd the journal's upcoming April print edition, the study describes how a the interaction of alpha4 integrin...aewon Han, Ph.D., UCSD Department of Medicine. The study was funded by the National Institutes of Health. ...

U-M scientists find genes that control growth of common skin cancer

...ls from whichthey may arise.If the results of this study are applicable to human BCC, the discoveryof residual tumor cells and tumor recurrence may be particularlyimportant given the current efforts to develop Hh pathway inhibitors asa means of combating human BCCs, as well as other cancers. In contrastto ...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...ne that really runs quite fast, and in this latest study we were trying to figure out what those speed limi...n clathrin kicks endocytosis into high gear." The study was conducted in fibroblasts, a kind of cell used in many cell-culture experiments. But Dr. Ryan sai...

Experiments provide proof of how traveling in groups protects insects

...search, supported by the USDA, is part of a larger study designed to learn whether scientists can predict and possibly change the path of massive insect bands, he said. "In the United States nowadays, Mormon crickets just cost farmers and others a lot of money, but in parts of Africa and elsewhere, locust...

New Study from Affymetrix Laboratories Points to Changing View of How Genome Works

... team used high-density GeneChip(R) microarrays to study every fifth base, on average, of 10 human chromoso...ta is freely available . "The findings of this study compel us to reconsider how the genome is organized and regulated," said Thomas Gingeras, Vice Presi...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...ls. "They're unbelievably effective, and in vitro study suggests they'll work just as well at inhibiting the migration of prostate and colon cancer cells," said senior researcher Dr. Xin-Yun Huang, Professor of Physiology and Biophysics at Weill Cornell Medical College in New York City. The findings have...

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

The largest, most comprehensive study ever done comparing the effectiveness of hand hygi... active ingredients and application methods. "Our study showed that the anti-microbial hand washing agents were significantly more effective in reducing bac...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...the health of parrots. McGraw cites an independent study on the parrot pigments that suggests that they can act as anti-oxidants to quench free radicals and potentially protect cells and tissues in the body from oxidative damage. Now, McGraw says, he's interested in learning more about the connection betw...

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