Tag: "created" at biology news

Advance helps explain stem cell behavior

... types just in the spinal cord. The cell types are created very quickly in early embryonic development by a p...rent types of cells. The cell types themselves are created well before they are "wired together" to create functional organs and bodily systems. The same bas...

Cardiologist's 'living chip' changes science of disease monitoring

... Promising technology Physiologic Communications, created 18 months ago by Rosero, has quickly grown from an idea to a successful start-up venture thanks in part to Excell Partners Inc. The Rochester-based consortium assists young companies with funding from New York state, Cornell University and the Univer...

Reading Shakespeare has dramatic effect on human brain

...uces a sudden burst of activity - a sense of drama created out of the simplest of things." Experts believe that this heightened brain activity may be one of the reasons why Shakespeare's plays have such a dramatic impact on their readers. Professor Neil Roberts, from the University's Magnetic Resonance ...

Bacteria that use radiated water as food

... hydrocarbons and hydrogen not likely to have been created through biological processes, but rather from decomposition of water exposed to radiation from uranium-bearing rocks. High density DNA microarray analysis revealed a vast number of bacterial species present, but the samples were dominated by a sing...

Gene chip technology shows potential for identifying life-threatening blood infection

...on-infectious inflammation. Using gene chips, they created molecular profiles based on the abundance of messenger RNA expressed in immune cells taken from the blood of the sick mice. These profiles were compared with profiles from the blood of control mice. The researchers looked at the activity of thousa...

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

... with collaborators at Stony Brook University, who created Yersinia bacteria with Prehna's mutations. The Stony Brook researchers then injected mice with the wild-type and mutant strains of Yersinia. All the mice infected with the wild-type bacteria died within nine days of exposure. But the group that recei...

Coral reefs are increasingly vulnerable to angry oceans

...o quantify these vulnerabilities." The authors created the world's first engineering model to predict how much damage a reef is likely to suffer when confronted with the might of an angry sea. They used mathematical models to calculate the forces that coral is subjected to –?events such as waves, storm s...

Parkinson's mutation stunts neurons

...lleagues found that the mutant LRRK2 proteins they created also caused such inclusions in the brain cell cultures. What's more, when the researchers introduced the mutant form of LRRK2 into the adult rat brain, they saw the same stunting of growth of dopamine-producing neurons and production of abnormal i...

Wheat gene may boost foods' nutrient content

...ffects were produced by this gene, the researchers created genetically modified wheat lines with reduced levels of the GPC gene by a technique called RNA interference. These lines were developed by research geneticist Ann Blechl of USDA's Agricultural Research Service in Albany, Calif. "The results were sp...

Cancer stem cells linked to radiation resistance

...ssue removed from patients during neurosurgery and created two separate models. For one model, the researchers extracted cells from the tissue and grew them in cultures in the laboratory. For the second model, they transplanted the glioblastoma tissue into the frontal lobes of the brains of mice. The rese...

Researchers reveal mystery of bacterial magnetism

...ving chemical sensors. As a first step, they have created a strain that cannot make magnetosomes and therefore is not magnetic. Dr. Lloyd Whitman from NRL, who led the research team, explains that "during the course of our research, we realized that nobody had ever really demonstrated that being magnetic a...

Insulin receptor stops progression of Alzheimer's disease

...ell loss and overall brain deterioration. Having created an animal model for Alzheimer's, researchers in this study induced Alzheimer's with STZ and then administered treatment with three classes of PPAR agonists ?alpha, gamma and delta. All are found in various tissues and organs in the body, including th...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...identify edible objects by sniffing alone, Catania created underwater scent trails leading to food and recorded how well the moles' could follow them. To keep the moles from using their tactile star, he put a grid-work between the animals and the scent trails. The openings in the grid were too small for the ...

Plutonium or greenhouse gases? Weighing the energy options

... nuclear waste annually. "The amount that would be created each year would be equal to the present capacity a...ance of the Yucca Mountain repository. Plutonium created as a byproduct of nuclear power generation also is a concern because of its potential for use in nuc...

New evidence of early horse domestication

...d shepherding and cattle raising, said Olsen. That created a more nomadic culture, since sheep and cattle are not well suited for sub-zero climates and therefore needed to be taken south in winter. The tradeoff, she says, was that cows and sheep give far fattier milk year round, which can be made into yogurt...

A reason why video games are hard to give up

...ied, Ryan points out that "not all video games are created equal" in their ability to satisfy basic psychological needs. "But those that do may be the best at keeping players coming back."...

MIT creates 3-D scaffold for growing stem cells

...graduate student Fabrizio Gelain from Milan, Zhang created a designer scaffold from a network of protein nanofibers, each 5,000 times thinner than a human hair and containing pores up to 20,000 times smaller than the eye of a needle. The researchers were able to grow a healthy colony of adult mouse stem c...

When nerve cells can't make contact

...wever in mice, not in humans. "We had even already created mutant mice which, in functional terms, were carry...ve cells. With his colleague Varoqueaux, Brose has created a mouse line that not only lacked neuroligin-1 or neuroligin-2, both of which have been associated w...

Immune cell communication key to hunting viruses, Jefferson immunologists show

... by killer T-cells, Dr. Sykulev and his co-workers created a biosensor out of semiconductor nanoparticles called quantum dots. These served as a unique scaffold to carry presenting proteins (called Major Histocompatibility Complex (MHC) proteins) and the attached virus portion, mimicking the clustering of MH...

Solved: The mystery of flesh-eating bacteria's relentless attack

...e culprit: an enzyme called ScpC. The team then created a mutant variation of the M14 strain of Streptococcus that could not produce ScpC. As expected, this strain was much less virulent than the original M14. Only three of 28 mice receiving the mutant strain succumbed to infection, a death rate much lowe...

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