Tag: "key" at biology news

LUCA technologies confirms real-time methane generation

...identified Clostridia and Thermatoga as two of the key members of this consortium. Clostridia form a broad genus of bacteria known for their diverse metabolic pathways. Clostridia frequently thrive in anaerobic environments and many species are known for their heat tolerance. Thermatoga microorganisms ar...

Scientists discuss improved biopesticides for locust control in West Africa

...hort-lived fungal spores from ultraviolet light, a key facet of biopesticide research. OIRED (http://www.oired.vt.edu/) at Virginia Tech manages two large global projects funded by USAID. ...

Variation in women's X chromosomes may explain differences among individuals, between sexes

...egment, he explained. The findings also highlight key differences between female and male genomes, according to the researchers. For one thing, women are known to consist of a mosaic of two cell types that differ in which X chromosome is inactivated. The Y chromosome also endows males with at least sev...

Hirsute Or Hairless? Two Proteins May Spell The Difference

...ir follicles, form. Their experiments point to two key actors in a signaling pathway that molds a targete...ion for dissecting the mechanisms that connect two key processes—intercellular remodeling and proliferation—in epithelial development. And since the conseq...

Programmable cells: Engineer turns bacteria into living computers

...n of patterns, such as the bull's-eye effect, is a key step in one of Weiss' eventual goals, which is to have the cells secrete materials that build physical devices such as antennas or transmitters in places that are hard for humans to reach. Programmed cells also could be used to control the repair or ...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

...ug Herceptin. Additionally, UCLA scientists played key roles in testing the targeted therapies Avastin an...singly complex, new academic partnerships hold the key to discovery; this institute will create novel opportunities for research that spans many discipline...

Wisconsin researchers identify sleep gene

...ulated by the circadian system, Tononi notes. "The key molecular mechanisms controlling the circadian timing of sleep are well understood, but details about the homeostatic mechanism that regulates the amount of sleep have been unclear," he says. In a four-year, round-the-clock search, researchers scree...

DuPont's first biologically derived polymer receives global recognition

...ts recently developed a way to make Bio-PDOTM, the key Sorona® ingredient, from corn using a new biological process that requires over 40 percent less total energy than the traditional petrochemical feedstock. It will be commercially available in 2006. In 2003, the U.S. Environmental Protection Agency...

Researchers devise way to mass-produce embryonic stem cells

...a flask and those grown in the bioreactor ?for two key proteins. The presence of these proteins indicates that a stem cell has not differentiated. In the bioreactor experiment, 94 percent of the stem cells tested positive for these proteins, compared to about 85 percent of the cells grown in the flask. ...

Fleshing out the genome

...the genetic sequences in Shewanella oneidensis--of key interest to DOE for its potential in nuclear and heavy metal waste remediation--were considered as hypothetical. This work identified 538 of these genes that expressed functional proteins and messenger RNA, accounting for a third of the hypothetical ...

Viral protein influences key cell-signaling pathway

...in produced by a cancer-causing virus influences a key signaling pathway in the immune cells that the virus infects. This stimulates the cells to divide, helping the virus spread through the body. The study, led by researchers at Ohio State University, examined the human T lymphotropic virus type 1 (HTL...

Molecular models advance the fight against malaria

...stubbornly resistant to drug therapy, may hold the key to a new treatments for a disease that afflicts more than half a billion people worldwide. The scientists developed disease models using yeast and successfully introduced five mutations that make malaria resistant to the anti-malarial drug, atovaquo...

Polymers with copper show promise for implanted sensors

...called nitrosothiols found in the bloodstream. The key to doing this, the researchers found, is copper. "It turns out that copper ions can act as catalysts to take nitrosothiols and generate nitric oxide from them," said Meyerhoff. So the U-M team has been creating polymers that include a copper ion-con...

Iron exporter revealed that may explain common human disorder

..., if not the only, iron exporter that functions in key sites of iron absorption and release in the body. The findings suggest that the iron accumulation seen in those with hemochromatosis may stem from a loss of control over iron export through ferroportin, the researchers said. "Iron is essential in th...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...t stage of AD memory loss begins when ADDLs attack key synapses in the brain. We predicted some of these ADDLs would leak into the cerebrospinal fluid, but until now we couldn't detect them. Thanks to the extraordinary sensitivity of the BCA it's been possible to validate the prediction, and maybe even s...

Insight into natural cholesterol control suggests novel cholesterol-lowering therapy

...sue of Cell Metabolism has provided insight into a key mechanism by which cells limit cholesterol synthesis. The finding suggests a novel approach to the development of cholesterol-lowering drugs that may boost the effect of statins, one of the most prescribed cholesterol inhibitors, according to researc...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...sine triphosphate sulfurylase (APS). The enzyme is key to the plant's ability to convert selenate into a ...nd glutathione synthetase (GS), both of which play key roles in the production of glutathione. Glutathione, part of the plant's antioxidant system, may be ...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

..., sodium and calcium to flow in and out and so are key regulators of many fundamental processes in biolog...y were silent like K2P1." Other membrane proteins key to biology, like transporters and hormone receptors, may also be controlled by SUMO since the bindin...

New component of the 'brakes' on nerve regeneration found

...ace that accepted the inhibitory molecules--like a key fitting a lock--and switched-on inhibitory signaling within the neuron. They had also shown that a protein called p75 could function as a component of the complex of proteins that make up this receptor. The puzzle, however, was that p75 is not widely...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

... families for malaria prevention, along with other key supplies such as insecticides, fogging machines an...proper drainage system and engineering methods are key components of WHO's long-term strategy to rehabilitate the damaged or destroyed public health infras...

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