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Tag: "added" at biology news

Parkinson's disease mechanism discovered

...t they were relevant in humans," she said. Bonini added that the research team's findings illustrate the power of animal models in revealing insight into Parkinson's disease. "These results highlight the value and importance of very simple model organisms in studying these disorders," she said. "For examp...

Bt cotton in China fails to reap profit after seven years

...oad-spectrum pesticides used to control bollworms, added Pinstrup-Andersen, who also is serving as president of AAEA for 2007. Wang and her co-authors conclude, Research is urgently needed to develop and test solutions. These include introducing natural predators to kill the secondary pests, developing B...

Food-crop yields in future greenhouse-gas conditions lower than expected

...tmosphere projected for the year 2050. SoyFACE has added a unique element by introducing surface-level ozone, which also is rising. Ozone is toxic to plants. SoyFACE is the first facility in the world to test both the effects of future ozone and CO2 levels on crops in the open air. Older, closed-condition...

DNA: Bacteria's survival ration

...ists at the University of Southern California have added another: in a pinch, E. coli can feast on the DNA of their dead competitors. A research team led by Steven Finkel, assistant professor of molecular and computational biology in the USC College of Letters, Arts and Sciences, had already shown that DN...

Stanford snake venom study shows that certain cells may eliminate poison

... conventional wisdom - that the immune system only added to the woes of snakebite victims. This assumption arose because of the way mast cells respond to certain other stimuli. Mast cells synthesize a wide range of biological mediators - compounds that can promote inflammation and other tissue changes - ...

Tiny shock absorbers help bacteria stick around inside the body

...turbulent forces caused by bumpy road conditions," added study co-author Dr. Wendy Thomas, assistant professor of bioengineering at the UW. The researchers found that fimbrial uncoiling and recoiling events balance each other at an intermediate force level that corresponds to the force at which the stick...

Mosquito spray increases toxicity of pyrethroids in creek, study finds

...en a two-fold increase is a pretty major finding," added study co-author Michael Lydy, associate professor of zoology at Southern Illinois University. Other co-authors of the study are Erin Amweg, a UC Berkeley post-doctoral researcher in integrative biology; Abdou Mekebri, a chemist at the California De...

Gene discovery may shed light on kidney disease

...rk is that, collectively, relatively rare diseases added together constitute a significant portion of the population," said David A. Piccoli, M.D., chief of Gastroenterology and Nutrition at Children's Hospital and a co-author of the study. "Another rationale is that studying relatively rare diseases may o...

New human retrovirus originated in mice

...the stroma as the soil in which cancer arises." He added that the chronic inflammation from infection of stromal tissues may play a role in triggering such cancers. DeRisi observed that "it may be that men who are so-called RNASEL-mutant are just more susceptible to viruses in general, and this susceptibi...

Value of services performed by insects tops $57 billion in US

...ere available for an analysis. "A lot of value is added to the economy by insects, but most people just don't realize it," said Losey. "When considering the allocation of conservation resources, or the management of natural habitat, we must think about this value to make sure that insects can continue to ...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

...ctive in slowing pandemic flu spread in the U.S.," added Longini. The results show that advance preparation of a modestly effective vaccine in large quantities appears to be preferable to waiting for the development of a well-matched vaccine that may not become available until a pandemic has already reach...

Alaska seal pup diet may hold key to decline of population

...ges in prey availability. In 2005, the researchers added four more newly weaned one-month-old females to the study. For marine mammals, most energy is provided by fat and protein, Polasek said. And fat is the easiest to convert to energy and blubber. Herring is one potential source of fat for harbor seals...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...es along the West Coast, Finkelstein said. But she added that the distribution and transport of contaminants in the North Pacific involves processes that are still not fully understood. Concentrations of DDE (the main breakdown product of DDT) and PCBs in both black-footed and Laysan albatrosses were 130...

Albatross study shows regional differences in ocean contamination

...es along the West Coast, Finkelstein said. But she added that the distribution and transport of contaminants in the North Pacific involves processes that are still not fully understood. Concentrations of DDE (the main breakdown product of DDT) and PCBs in both black-footed and Laysan albatrosses were 130...

How nice, brown rice: Study shows rice bran lowers blood pressure in rats

...e university’s School of Agricultural Science. He added one more element to the research that is new: using enzymes to clip components of rice bran from its cell walls, rather than extracting a fraction with ethanol. “I think enzymatic treatment will be more suitable for applications if we’d like to use [...

AIDS-related cognitive impairment exists in two separate forms

...i-center trial for submission to the FDA. She also added that while this study analyzed prostatectomy samples, Epigenomics is expanding its research to see if the same results can be obtained from prostate biopsies. "If the test is a strong enough predictor of a good prognosis at the stage of biopsy, men w...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...i-center trial for submission to the FDA. She also added that while this study analyzed prostatectomy samples, Epigenomics is expanding its research to see if the same results can be obtained from prostate biopsies. "If the test is a strong enough predictor of a good prognosis at the stage of biopsy, men w...

UCR researchers design chip that can improve citrus varieties

... efficient. "This industry-supported effort both added to and made use of publicly available citrus sequences to develop an entirely new tool that will benefit all citrus researchers and help sustain the citrus industry locally and worldwide," said Timothy Close , a professor of genetics at UCR and a co...

Hopkins study suggests commercially available antibiotic may help fight dementia in HIV patients

... meeting on April 5 in San Diego, Calif. Rumbaugh added that, although ceftriaxone is FDA approved and could be used at any time by patients suffering from HIV dementia, there is not yet enough data to support doing so. The study looked at two proteins, called Tat and gp120, that are part of the virus th...

Mutation in blood stem cells provides clues to cancer development

...es Cancer Center. "The body is very utilitarian," added Jamieson, first author of the study. "There are primal pathways that are important for regenerating cells and tissues, and those are the same pathways that cancers use, subverting normal processes and using them for the wrong purpose. The discovery...

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