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Tag: "isolated" at biology news

Spiders help scientists discover how muscles relax

...ere surprised to find that the atomic structure of isolated myosin molecules from vertebrate smooth muscle--the type of muscle found in the digestive tract, bladder, arteries, and veins--closely matched their invertebrate striated muscle myosin filament. Kenneth Taylor's research group at Florida State Univer...

Most common lung cancers may begin in newly discovered cells

... form of lung cancer may begin in a group of newly isolated lung stem cells, according to researchers from the...titute. Working in a mouse model, the researchers isolated a novel type of lung cell that can divide into fresh copies of itself and into the two more speciali...

Promiscuous Catalytic Activity Possessed by Novel Enzyme Structure

...téphane Richard, Joseph Noel and Tomohisa Kuzuyama isolated and examined a totally new enzyme that can mix and match biological chemicals to create a wide range of different molecules that could be used as the basis for new drugs. The enzyme, named Orf2, takes chemical building blocks known as small aromatic ...

Stem cell training program to make its Stanford debut

...téphane Richard, Joseph Noel and Tomohisa Kuzuyama isolated and examined a totally new enzyme that can mix and match biological chemicals to create a wide range of different molecules that could be used as the basis for new drugs. The enzyme, named Orf2, takes chemical building blocks known as small aromatic ...

A new molecule discovered in the battle between plants and disease

... The group led by Professor Clarence A. "Bud" Ryan isolated a small protein called Pep1 that appears to act li...1 binds to exert its protective effects. Pep1 was isolated from the plant Arabidopsis thaliana, which is a species favored by investigators for attributes that...

Gambling monkeys give insight into neural machinery of risk

... payoff. While Platt and McCoy believed they have isolated one component of the neural machinery of risk, they do not believe they have mapped the entire circuitry. "We don't think the posterior cingulate cortex is by any means the only area that's important for assessing risk, for deciding what's valuable ...

Stem Cells Found In Cerebellum; Possible Cell of Origin for Childhood Brain Tumors

...out the majority of the work. The stem cells they isolated represented less than one percent of the total number of cells in the cerebellum, said Lee. Yet they were clearly identified as stem cells based on three distinct properties: their expression of a protein called Prominin-1 or CD133, which is commonly...

Scientists show that tick-borne flaviviruses use a novel mechanism to evade host defenses

...n to combat the virus. Langat virus was originally isolated in the 1950s in Malaysia and Thailand. Langat virus can infect people following a tick bite, but there are no cases of natural disease recorded. In the 1970s Langat was briefly used as a live vaccine against more virulent tick-borne encephalitis viru...

For first time, brain cells generated in a dish

...an obscure species in a sea of cell types. "We've isolated for the first time what appears to be the true candidate stem cell," said Steindler, a neuroscientist and member of UF's Program of Stem Cell Biology and Regenerative Medicine. "There have been other candidates, but in this case we used a special mic...

Secrets to antibody's success against West Nile Virus surprise scientists

...fections and 88 deaths in the United States. First isolated in Africa in 1937, West Nile spread to the Middle East, Europe, and Asia before arriving in the United States in 1999. Most infections with the virus are mild or symptom-free, but infections in people with weakened immune systems and those over 50 so...

Bitter or sweet? The same taste bud can tell the difference

...has the highest concentration of taste buds.) They isolated single cells from individual taste buds. They attached very small, fine electrodes to these single cells in Petri dishes in order to record the electrical activity of each cell. They also applied NPY to these cells. Cells are like tiny batteries, as ...

Virologist finds contagious equine flu in dogs

A Cornell University virologist has isolated a highly contagious equine flu virus that is sprea...p species. The equine influenza virus, H3N8, was isolated at Cornell's College of Veterinary Medicine after University of Florida researchers sent fluid and t...

Logging changed ecological balance for monkeys, damaged health

...re now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed forest, where often the three species share trees. "When we look at their numbers over time, they continue to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are ...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...re now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed forest, where often the three species share trees. "When we look at their numbers over time, they continue to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are ...

President Bush's cut to AIDS prevention in Africa would be devastating

...re now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed forest, where often the three species share trees. "When we look at their numbers over time, they continue to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are ...

Brain size may depend upon how neural cells are cleaved

...d Gβγ signaling in the mouse brains in utero, then isolated the progenitor cells to study the effects in vitro. Those studies revealed that impairing Gβγ did result in overproduction of neurons as a result of both daughter cells adopting the neuronal fate. Thus, the researchers concluded that Gβγ does control...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

... nitrogen cycle. Subsequently having the organism isolated in the lab allowed us to confirm our suspicions," said David Stahl, professor of civil and environmental engineering at the University of Washington. Stahl's lab group specializes in environmental microbiology and how microbial communities function ...

Simple sea sponge helps scientists understand tissue rejection

...since its cells and cell adhesion molecules can be isolated with simple, fast, and non-disruptive methods and studied, and because its fingerlike structures make grafting experiments relatively straightforward. In experiments carried out on these sponges this summer, Dr. Fernndez-Busquets and his colleagues ...

A vaccine to kill tapeworm

...heres to burst. Small-scale trials, in which eggs isolated from adult tapeworms were fed to up to 30 pigs, have already been conducted in Mexico, Peru, Cameroon and Honduras. The vaccine provided between 99.5 and 100 per cent protection in every trial. The Melbourne researchers, together with collaborators i...

UIC developing drug for SARS

...sized that all the work being done at UIC involves isolated proteases, not live viruses. "The proteases are no more dangerous than the enzymes in your laundry detergent," he said. Testing of the protease inhibitors on live viruses will be done at the U.S. Centers for Disease Control and Prevention. SARS was...

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