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Tag: "evaluate" at biology news

Scientists aim to thwart use of flu as bioweapon

...g exactly what is happening should help scientists evaluate how the virus will respond to drugs designed to treat an infection." Since flu is already a killer, the discussions will have an immediate application among scientists looking for ways to stop or better treat "natural" flu. The work also helps scien...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

...heir patients. To restore the SA node function and evaluate the bioengineered cells, Li's team then implanted electronic cardiac pacemakers like those used in humans and injected an adenovirus carrying a gene encoding for the engineered HCN protein into the heart muscle. Adenovirus has the ability to deliver ...

Researchers develop flood-tolerant California rice

...s, a professor of genetics at UCR, the researchers evaluate two nearly genetically identical lines of California rice: the original submergence intolerant line and the new submergence tolerant line. A careful comparison of the two California rice lines showed that in the submergence tolerant line the rice pla...

New study reveals components of cocoa may enhance the appearance of the skin

...the 12-week study, various tests were conducted to evaluate skin properties: sensitivity to UV irradiation, skin blood flow, skin structure and texture, and skin hydration. The women who regularly consumed the high-flavanol cocoa beverage showed significant improvements in these indicators of skin quality, w...

Novel therapy combinations gain ground in treating hepatitis

...dy. "We look forward to future studies which will evaluate the ability of VX-950 to produce sustained viral responses with as little as 12 weeks of therapy." VX-950 + pegIFN + RBV was well tolerated, with no serious adverse events and no treatment discontinuations. A detailed analysis of adverse events will...

New GI technologies improve internal organ visualization

...r small bowel problems, and should be used to help evaluate a patient's health," said Shahab Mehdizadeh, M.D., of Cedars-Sinai Medical Center and lead study author. "Clearly, DBE has the advantage of being able to treat problems. But we believe that based on the results of this study, CE should continue to b...

Case Western Reserve University researchers find protein associated with brain cell death

...n plaque. The primary goal of this study was to evaluate potential signaling intermediates upstream from the oxidation, said the researchers. They had an interest in a group of signaling molecules (guanine nucleotides exchange factors) that are known to activate oxidation. Vav was selected from the group...

Combating anthrax: Results of study published this month as researchers look for a better vaccine

...equent immune response. The study was designed to evaluate the safety and immunogenicity of escalating doses of the new vaccine. A total of 100 healthy adults were randomized to receive either one of four different vaccine formulations, or AVA, the anthrax vaccine currently licensed for use in the United Sta...

Even when faint, ovary scent draws sperm cells

...chemical gradient with transporting sperm cells to evaluate sperm chemotaxis," Jacobson said. "The use of micr...p toward having an easy-to-use platform to rapidly evaluate and quantify chemotaxis." The researchers hope their device will help other scientists more accura...

Adult stem cell research at UB targets damaged hearts

.... The researchers will track the cells' progress, evaluate their feasibility, and determine if cells engineering for enhanced survival, blood vessel regeneration and "homing potential" (the tendency to migrate properly to the heart rather than elsewhere) can better improve blood flow and tissue function in ...

New bird flu drug promises to beat the problem of resistance

...long period of time it takes to properly trial and evaluate a new anti-viral drug, it could be up to fifteen years before we see the resulting treatment on the shelves." Whilst Dr Watts will be making the molecules at the University of Bath, the initial trials on the influenza virus will be carried out by D...

3-D model reveals secrets of metastasis

...for this process, which is known as metastasis, to evaluate anti-cancer therapeutics. In these assays, cells crawl across the surface of a matrix, traveling in a single plane. But a new study indicates that this approach misses some crucial phenomena. Working in the labs of Whitehead Member Paul Matsudaira ...

Speeding the search for elusive chromosomal errors

...g with other researchers at Children's Hospital to evaluate other, higher-density gene chips (holding more tha...m is also developing better computational tools to evaluate data from these chips. "Our ability to detect even smaller rearrangements will only get better as th...

Researcher studies, treats military with 'silent disease'

...revention is currently conducting a large study to evaluate tattooing as a potential risk, according to its Web site. Of the 90 volunteers enrolled, six have completed the study and 74 are still active. Ten volunteers either dropped out of the study or died. "We are marching toward the end (of the study), an...

Biofuels researcher searches for new sources

... and his collaborators are working on a project to evaluate the ethanol production potential of various straws, hays, and silages in Montana. People can make fuel from many kinds of plants, though over 90 percent of ethanol made in the United States comes from corn grain. However, other sources of ethanol ...

Statins stop hepatitis C virus from replicating

...V RNA replication in the statin-treated cells. To evaluate statins as potential replacements for ribavirin in combination therapy, the researchers tested the anti-HCV activities of each one when combined with interferon. Each combination, except the one including pravastatin, had even stronger inhibitory eff...

A cleaner, greener rice industry

...roup will organize another workshop in Malaysia to evaluate and add indicators, especially on the socioeconomic dimensions of rice production. This, we hope, will allow ASEAN members to much better assess the impact of environmental problems, especially in comparison with each other. "This is an exciting ini...

UWM brain research supports drug development from jellyfish protein

...rforms Pavlovian trace conditioning experiments to evaluate aging-related learning and memory deficits. These tasks first teach rodents to associate one stimulus with another and then test their memory of the association. During training, the stimuli are separated by a brief period of time, which requires the...

Striking the right balance between excitation and inhibition

...nding them to the brain. In doing so these neurons evaluate the strength of sensations. "An example of how the system works is illustrated by what happens when you cut your finger," Goulding explains. "Initially it hurts a lot, but the pain then eases. One of the reasons that this happens is because inhibito...

Biotech cotton provides same yield with fewer pesticides

...nd LANDSAT satellite imagery to map the fields and evaluate plant growth in the non-cultivated areas. Plant growth can affect the biodiversity of insects found in an area. The researchers found that, per pesticide application, Bt cotton produced 9 percent more cotton/acre than non-Bt cotton. However, grower...

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