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Tag: "helpful" at biology news

Stanford snake venom study shows that certain cells may eliminate poison

...om," said Galli, the paper's senior author. This helpful mast cell response runs contrary to the 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 ran...

U of M researchers find immune-activating cells in intestines

...onses in the gastrointestinal system, which may be helpful in studying diseases and conditions such as ulcerative colitis, and Crohn's disease. The research was done in collaboration with scientists at Harvard University. ...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...osome cell functions." The new tools aren't just helpful in understanding GPIs in T. brucei, either. The team found that it works just as well in understanding the parasite Leishmania, which causes another pervasive and terrible tropical disease called Leishmaniasis. This debilitating disease is found is ...

The secret lives of sea slugs

...rk," says Wyeth. "Field work with this organism is helpful because it gives you a good idea of how to set things up in the lab." Observations of the slug's natural behaviors and the sensory cues that trigger them also add exciting new context for scientists studying them under experimental conditions and pr...

Scientists resuscitate a 5 million-year-old retrovirus

...and melanomas," says Heidmann. "This work will be helpful in tracking down the role of retroviruses in these human diseases." ...

MIT finds most complex protein knot ever seen

...to see if it has knots, which he believes could be helpful to researchers in structural genomics. (Structural genomics aims to determine the structure of all proteins produced by a given organism.) Since their initial screening, the researchers have discovered five-crossing knots in two other proteins - a ...

History-hunting geneticists can still follow familiar trail

... that an evolutionary tendency for species to keep helpful genes and sift out detrimental ones, called "natural selection," preferentially affects mitochondrial diversity, making mtDNA less useful for population size estimates. "From a conservation perspective, when scientists look at census counts of ani...

Pair of microRNA molecules controls major oncogene in most common leukemia

... control this cancer’s major risk factor is a very helpful advance." ...

Did 'ABCs' cause Uganda's fall in HIV rates?

... two sides to the question of whether the ABCs are helpful or harmful in the battle to control the HIV pandemic. Elaine Murphy and Margaret Green (George Washington University School of Public Health and Health Services) argue that "ABC behaviors were attainable in Uganda" and the promotion of ABC messages ...

Stroke symptoms common among general population

... for individuals who report stroke symptoms may be helpful in improving early recognition and in the prevention of stroke," the authors conclude....

Molecules in blood foretell development of preeclampsia

...n and sFlt1 early in pregnancy might be especially helpful in predicting the later development of preeclampsia. Detecting high levels of these molecules might also help in distinguishing preeclampsia from chronic high blood pressure, kidney disease and other conditions that can produce symptoms similar to p...

New research shows why too much memory may be a bad thing

...ny new neurons could actually be more harmful than helpful to working memory. To examine this hypothesis, they designed working memory tests for two independent groups of mice in which neurogenesis in the hippocampus regions was suppressed. Results of the tests, in which mice had to locate food within specif...

Biologists call for better choice of model organisms in 'evo-devo'

...bles its ancestor, because this information can be helpful in estimating how much an organism’s phenotype has changed." Dr Wills added: "Establishing criteria for choosing model organisms is important in this field, especially given the pressure on available funding sources. "We encourage evo-devo wor...

Coated nanoparticles solve sticky drug-delivery problem

...ave an undesirable side effect: they can also keep helpful medications away. To overcome this hurdle, Johns H..._IMAGE_2 "Mucus barriers evolved to serve a helpful purpose: to keep things out," said Justin Hanes, an associate professor of chemical and biomolecular...

A revolution in the monitoring of unborn babies

...ery of the fetus.? The device will be especially helpful in monitoring fetuses whose mothers have medical conditions like diabetes, autoimmune conditions such as systemic lupus erythematosus and Sjogren’s syndrome and obstetric cholestasis. It will also be useful in monitoring fetuses identified as growing...

Antibody signal may redirect inflammation to fuel cancer

... to the emerging view that inflammation, usually a helpful response to invading pathogens, can become misdirected and fuel cancer. The new research was presented today (February 19) by UCSF scientist Lisa M. Coussens, PhD, at the annual meeting of the American Association for the Advancement of Science (...

Using brain scans, researchers find evidence for a two-stage model of human perceptual learning

...learn a task, he said. These findings might be helpful in understanding disorders that involve differences in the interaction of bottom-up and top-down information in the brain, such as autism or schizophrenia, Riesenhuber said. It also suggests how the learning of visual skills can be enhanced by direct...

Scientists find potential 'off-switch' for HIV virus

...e flow of current. "The resistor paradigm is a helpful way to think about how HIV enters and exits latency, and it might serve as a useful model for latent infections by other viruses, as well," said Shenk, Princeton's James A. Elkins Jr. Professor in the Life Sciences in the Department of Molecular Biol...

Scientists find new genes for Crohn's disease

...ome variations can be harmful, while others may be helpful or have no effect at all. The comparison of these SNPs between patients with Crohn's disease and people without the disease identified multiple variations in several genes that were strongly associated with Crohn's disease. These findings were the...

Vitamins: Science doesn't always match policy

...n the vitamins they are taking. Standards would be helpful to both consumers and industry by rewarding those companies that do science-based marketing, rather than those that make unjustified health claims." "In particular, issues needing more attention include the content and labeling of vitamin and min...

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