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Tag: "gives" at biology news

Mosquito spray increases toxicity of pyrethroids in creek, study finds

...zyme that animals use to detoxify pyrethrin, so it gives pyrethrin more punch," said Weston. "Without PBO, you'd need a greater concentration of pyrethrin or pyrethroid to be effective as a pesticide." To assess the toxicity of the water that was sampled in Sacramento after the aerial mosquito spray, the...

Tiny shock absorbers help bacteria stick around inside the body

...al nanotechnological device created by nature, and gives us the opportunity to adapt such a system for biotechnological and even other technical uses," said study co-author Dr. Evgeni Sokurenko, associate professor of microbiology at the UW and a principal investigator at the NIH Bioengineering Research Pa...

Mitochondrial DNA sequencing tool updated

...ited number of cells to analyze, mitochondrial DNA gives you more to work with and a better chance of detecting mutations that might be associated with a developing cancer." Dr. Maitra said that despite the original Mitochip's 96 percent success rate assigning base calls, there was room for improvement....

First human study confirms that immune cells can be a primary cause of bone loss in gum disease

... "It's a groundbreaking discovery because it truly gives a new understanding of periodontal disease, while also raising interesting questions about immune cells. We hope this work will help us save people's teeth in the future." Research Overview RANKL is a protein that is a major factor in the regulati...

Production of key Alzheimer's protein monitored for first time in humans

...percentage of Abeta with labeled leucine over time gives scientists the subject's Abeta production rate. When the percentage of Abeta containing labeled leucine plateaus, scientists remove the IV drip supplying the labeled leucine. Periodic sampling of the patients' CSF continues, allowing scientists to ge...

Survival of the selfless - scientists find cheats don't always prosper

... invasion by exploitative cheats is unexpected and gives us greater insight into how cooperation evolves. This is important because we live in a world in which cooperations exists at every level, from genes working together to build functioning individuals to individuals forming societies." The researcher...

NASA technology helping injured US troops

...by way of NASA's technology transfer program, also gives patients with degenerative conditions like severe arthritis, multiple sclerosis, Lou Gehrig's Disease, cerebral palsy, and Parkinson's Disease an opportunity to safely extend their mobility. Former Army sergeant Herbert Geddis of Springfield, Va., ...

DOE JGI finishes 100th microbial genome

...quencing microbes, and other organisms, is that it gives us the complete genomic 'parts list' of those organisms," said Dr. Raymond L. Orbach, Director of the DOE Office of Science. "With this list in hand, we can explore how microbes use these parts to build and run their key functions, many of critical i...

On the track of tiny larvae, a new model elucidates connections in marine ecology

...ea based on ocean currents, while the second model gives the virtual larvae a genetic tag. The researchers then tested this new approach by comparing the new model's predictions to empirical genetic data for threatened staghorn corals. This test showed that combining the oceanographic and genetic models al...

Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent

...tates," the authors wrote. Although this research gives more insight into how epilepsy occurs, a cure is still years away. "But I would say there is hope," Colom said. "We want to offer people with epilepsy new options," he said, but progress will depend upon funding, he added. Next steps The research...

Gene expression becomes heterogeneous with age in humans and rats

...f gene expression. Lack of such evidence, in turn, gives support to a "programmed aging" hypothesis and argues against the more commonly accepted "stochastic aging" model, in which random biological events play an important role. In the new work, researchers put to the test the question of whether gene-ex...

NHGRI announces latest sequencing targets

...nses of chimps and humans. Identifying these genes gives researchers a more precise starting point for understanding molecular pathways and developing better diagnostics and therapies involved in immune and inflammatory diseases. In addition, some primates are important biomedical models beca...

New egg freezing technique offers hope to hundreds of women

...pean Society of Human Reproduction and Embryology, gives hope to hundreds of women who want to preserve their future fertility but who, for whatever reason, only have eggs, not embryos, available for freezing. Dr Masashige Kuwayama told a news briefing that although sperm could be frozen, thawed and used...

When the going gets tough, slime molds start synthesizing

...ral chemicals and the machinery that produces them gives us a window to look back in time and understand how organisms evolve at the molecular level." ...

Study reveals how cells destroy faulty proteins in cystic fibrosis

...teasome," Cyr said. "Understanding this pathway gives us greater insight into what's wrong with the protein -- information that will help people design better therapeutics for the disease," Cyr said. ...

Encoded metallic nanowires reveal bioweapons

... immunoassay". Measurement of the fluorescence now gives information about the pathogen concentration. Analysis of the reflection pattern allows the "barcode" of the fluorescing nanowires to be read. If only wires with stripe pattern 1 fluoresce, for example, then the sample contains anthrax spores. One pa...

New strategy rapidly identifies cancer targets

...ble to specific drug treatments. "This approach gives us a way to figure out what's driving the growth of a cancer in an individual patient and ultimately match that patient with the right drug," said Druker, who is based at the Oregon Health & Science University in Portland. Druker's team collabora...

Genetic snooze button governs timing of spring flowers

...lp us get our foot in the door," Amasino says. "It gives us a basis to test whether there are similarities." Knowing the genes that control flowering and how they work provides a much more detailed working knowledge of plants, many that are useful to humans and some of great economic importance, Amasino...

Beekeepers work hard for the honey, despite changing tupelo forest

... practiced by generations. It's a way of life that gives this rural community its unique flavor. "It's part of our identity," Watson said. "It's something special to Florida." ...

Scientists reverse evolution

...1 did what Hoxa1 and Hoxb1 do today," he says. "It gives a real example of how evolution works because we can reverse it." The hybrid Hoxa1-Hoxb1 gene is not fully identical to the half-billion-year-old Hox1 because it lacks Hoxc1 and Hoxd1. But Hoxc1 vanished during evolution because it was redundant, ...

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