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Tag: "ordinary" at biology news

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

...ul situations without affecting its activity under ordinary circumstances. They studied rats that had been put through several cycles of heavy alcohol consumption and withdrawal to create dependency, as well as animals selectively bred to consume more alcohol. Injections of MTIP prevented excessive drinking o...

Yale biologists 'trick' viruses into extinction

...s in environments containing different mixtures of ordinary "source" bacteria and mutant trap cells that act as "sinks." Their research showed that when the number of trap cells exceeded a key threshold in the mixtures, the virus population could no longer sustain itself and declined toward extinction. ...

Using dental X-rays to detect osteoporosis

...ntifying patients at risk of osteoporosis by using ordinary dental x-rays. Professor Paul F. van der Stelt and... a small area depicting the trabecular bone on the ordinary dental radiographs, dentists can predict the osteoporotic condition of the patients to the same exte...

'Exercise pill' switches on gene that tells cells to burn fat

By giving ordinary adult mice a drug - a synthetic designed to mimic fat - Salk Institute scientist Dr. Ronald M. Evans is now able to chemically switch on PPAR-d, the master regulator that controls the ability of cells to burn fat. Even when the mice are not active, ...

Research project tackles 'regeneration' gap

...stem cells, Brain Institute researchers have shown ordinary human brain cells can generate new brain tissue in mice and produce large amounts of new brain cells in culture for use as possible replacements for dead or injured cells. The UF project is "bold" because it takes a comprehensive view of regenerat...

White blood cells of cancer-resistant mice overwhelm natural defenses of cancer cells

...ntact," they said. The researchers said that in ordinary mice, the white blood cells are suppressed by self...se cancer-resistant mice cured advanced cancers in ordinary mice and also protected those normal mice from what should have been lethal doses of highly aggressi...

T-ray breakthrough could make detecting disease far easier

... in their work the researchers found that although ordinary metal wire would not guide T-rays very well, if a series of tiny grooves was cut into the wire, it would do so much more effectively. If such a corrugated metal wire is then tapered to a point it becomes possible to very efficiently transport radiati...

Designer babies - what would you do for a 'healthy' baby?

... first to investigate the thoughts and feelings of ordinary prospective parents. The results of a series of surveys of 100-200 participants included: The better educated prospective parents are, the further they are prepared to go to improve their children's IQ. Women interpret certain interventions in c...

'Failed' experiment yields a biocontrol agent that doesn't trigger antibiotic resistance

...n trying to insert two different mutations into an ordinary bacterial plasmid - a routine task for the experienced scientist - but every attempt failed to produce a live bacterium. Plasmids are circular DNA molecules that are different from chromosomal DNA, the genetic material that encodes the instructions...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

... of the virus, is divided into four subcategories: ordinary (which accounts for about 90 percent of cases and has a fatality rate of about 30 percent), modified (which occurs in people who have been vaccinated and has a death rate of about 10 percent), and flat and hemorrhagic (both very rare and uniformly fa...

Researchers attack tumor cells by exploiting dependency on sugar metabolism

...deficiency of LDH-A do not show any symptoms under ordinary circumstances, the genetic data suggest that inhibition of LDH-A activity may represent a relatively nontoxic approach to interfere with tumor growth," explains Dr. Fantin. ...

New bird flu drug promises to beat the problem of resistance

...ce in one in six children treated with Tamiflu for ordinary forms of flu. Although acting upon the same target on the influenza virus as existing treatments, the new drug molecules being developed are specific for a part of the virus that is unable to mutate (change), which means it should be impossible for...

Diabetes hits 275 Australians each day as pandemic spreads

..., said the research findings sent a "Red Alert" to ordinary Australians and to those charged with responsibility for public health. "With 275 new cases of diabetes and 600 cases of obesity occurring each day, we now have compelling proof that Australia's diabetes epidemic is in full flight." Professor Zimmet...

Tumor wizardry wards off attacks from the immune system

...lled regulatory T cells, or T-reg for short. Under ordinary circumstances, T-reg cells inhibit immune components responsible for killing unwanted cells -- this allows T-reg cells to help prevent autoimmune reactions. The scientists discovered that cancerous cells take advantage of T-reg cells' suppressor ab...

Many cleaners, air fresheners may pose health risks when used indoors

...d in a 230-square-foot room with ventilation at an ordinary level which provided approximately one air change ...ported, is that when people use the products under ordinary circumstances, their exposure to ethylene-based glycol ethers, formaldehyde and fine particles will ...

Memory loss affects more of the brain than previously thought

... mild memory impairment and is often confused with ordinary age-related forgetfulness. The researchers used 4-Tesla fMRI, which has a very strong magnetic field, to observe the brain activity of 20 elderly patients with amnestic MCI and 20 age-matched controls with no memory impairment during a memory task t...

Loosen leash on cancer protein 'watchdog,' researchers say

...ch is far less than they would have produced under ordinary conditions. The mice were created to answer a twofold question: Could increasing their levels of p53 delay or prevent tumor formation in living creatures, and would there be any negative consequences to the increase? "We were primarily interested in...

How can we protect patients with weakened immune systems from influenza?

...for the disease. In addition to the yearly toll of ordinary influenza (as many as 36,000 annual fatalities in ...be especially vulnerable to influenza, whether the ordinary annual variety or deadlier types. The researchers will study how such patients' vaccine responses ch...

Common enzyme is a key player in DNA repair

...trip it of its unique talent and change it into an ordinary polymerase. When a protein is that easy to modify, scientists assume its function must be important to have survived several billion years of evolution. "In general, we think that nature evolved this function to help us survive DNA damage that woul...

Flu not the only germ threat this time of year

... way to check people who may have the illness, for ordinary people the effects and treatment are largely the same, whether a person gets the flu, RSV, the common cold, or another respiratory ailment. Feel crummy. Rest, drink lots of fluids, and if you suspect the flu, call a doctor immediately, because flu ca...

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