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Tag: "throws" at biology news

Mice with a migraine show signs of brain damage

...gins as the brain tries to recover from CSD, which throws the proportion of crucial ions like potassium and sodium out of balance, taking away the brain’s ability to function efficiently. This change in the proportion of chemicals gradually sweeps across the brain like a slowly spreading wave. The brain,...

Genome sequencing reveals key to viable ethanol production

...ick," says Wu. "We found the bacterium essentially throws the whole bowl of spaghetti at the wall, sees what sticks, and then makes a lot of that particular noodle." C. thermocelllum produces low levels of many of its enzymes at any one time. When the bacterium comes in contact with wood, for instance, a...

Long-lived deep-sea fishes imperiled by technology, overfishing

... every year," Heppell pointed out, "so when nature throws a bad reproductive year at them, the species can survive. But the point remains that you have to have older fish to replenish the stock when those bad years come." Conversely, Heppell said, good years often can carry the population in a phenomenon...

Researchers seek to design first treatment for neuroAIDS

...l or greater importance" than GSK-3b. HIV exposure throws off the ability of MLK3 to regulate enzymes that maintain the balance between cell survival and cell death, shifting it toward death. MLK also regulates p38, an enzyme that encourages inflammation. Thus, MLK inhibitors could conceivably shut down aff...

UCSD researchers create roadmap to integrin activation

...ls in the body. "Talin binding seems to be what throws the activation switch," Ginsberg said. "By adding controllable amounts of talin and the enzyme protein kinase C ?an enzyme that modifies other proteins ?we found we can get the cell to respond to certain agents that, in turn, activate platelet integr...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

...r wondered why your golf swings, fastballs or free throws don't quite turn out the same way each time, even after years of practice, there is now an answer: It's mostly in your head. That's the finding of new research published in the Dec. 21 issue of the journal Neuron by electrical engineers at Stanford U...

Man may have caused pre-historic extinctions

... the cause. "This research is exciting because it throws open the debate as to whether climate change or over-hunting may have led to the extinction of pre-historic horses in North America," said UEA's Karen Robbirt. The Pleistocene period refers to the first epoch of the Quarternary period between 1.64 m...

Nutrition a major factor in rise in twin pregnancies

... how he and his colleagues had conducted work that throws light on why some couples prefer double embryo transfer (DET), despite being aware of the risks of twin pregnancy. His team assessed patients' preferences for a range of adverse birth outcomes associated with twin pregnancies ?cerebral palsy, cognit...

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

...tion functions for each individual, involving more throws of the virtual dice. "Computer models serve as virtual laboratories where researchers can study how infectious diseases might spread and what intervention strategies may lessen the impact of a real outbreak," said Jeremy M. Berg, director of the Nat...

Chemical signaling helps regulate sensory map formation in the brain

...rain. Disrupting either the Wnt or ephrin pathway throws the growing axons off their targets, shifting the map from side to side. This counterbalancing force has two components, Zou's team discovered, with one receptor drawn toward certain concentrations of Wnt3 and the other driven away. "A repulsive Wn...

Darkness unveils vital metabolic fuel switch between sugar and fat

Constant darkness throws a molecular switch in mammals that shifts the body's fuel consumption from glucose to fat and induces a state of torpor in mice, a research team led by scientists at The University of Texas Medical School at Houston reports in the Jan. 19 edition of ...

Alleged 40,000-year-old human footprints in Mexico much, much older than thought

...rs. The idea for another test that, it turns out, throws more cold water on the footprint hypothesis came to Renne one morning in the shower. Many rocks retain evidence of their orientation at the moment they cool in the form of iron oxide grains magnetized in a direction parallel to the Earth's magnetic f...

Researchers find molecule that inhibits regrowth of spinal nerve cells

...elopment. They previously showed that the molecule throws up "fences" that repel developing nerves and guide them along the pathways to their appropriate connections to muscles. In 2002 Dr. Mark Henkemeyer, associate professor in the Center for Developmental Biology and of cell biology and one of the autho...

Agilent Technologies introduces high-capacity human protein removal system for proteomics research

... year at Petrified Forest National Park in Arizona throws a wrench into theories of how and where the dinosa...he abundant teeth as "dinosaur teeth," but it also throws into question the identity of other presumed dinosaur ancestors known only from teeth, which include...

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

... year at Petrified Forest National Park in Arizona throws a wrench into theories of how and where the dinosa...he abundant teeth as "dinosaur teeth," but it also throws into question the identity of other presumed dinosaur ancestors known only from teeth, which include...

Does vitamin C help prevent or treat the common cold? Maybe not, after all.

...the incidence of common cold in normal populations throws doubt on the utility of this wide practice." In these prevention studies, those people who were given vitamin C and then caught a cold experienced a small reduction in the duration of the cold compared with those taking a placebo. The authors say th...

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