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Tag: "person" at biology news

Genetically altered mice no longer like cocaine

...orters, and this action ultimately is what makes a person feel high," Gu said. "We found that cocaine would not produce a high if it could not block the transporters." He and his colleagues reported their findings the week of May 29 in the Proceedings of the National Academy of Sciences. Dopamine is a che...

New fruit fly protein illuminates circadian response to light

...the mutant flies is similar to that displayed in a person who has prolonged jetlag," notes Sehgal. In search of answers to the mutant's defective circadian response to light, Sehgal and colleagues looked to the molecular details of the clock cells in the jetlag flies. When a fruit fly is exposed to light,...

New human retrovirus originated in mice

...oute of transmission? How is the virus passed from person to person? And are people the natural reservoir of this virus, or is it some other organism?" DeRisi and Ganem said they are planning studies to explore whether XMRV is restricted to prostate cancers or whether it is more widespread in the body and ...

U of M study examines kidney stone prevention in astronauts

...re in the chamber was roughly equivalent to what a person would experience running on Earth. Monga found that the non-exercising study participants had higher levels of urinary calcium than the exercising group, and thus had a greater risk of developing kidney stones. Additionally, many astronauts do not d...

Purdue creates new low-cost system to detect bacteria

...interface. "Now it requires a qualified, trained person to do all the recognition," Rajwa said. "We want a system where you can actually put a petri dish or some other container into the system, you press enter and the computer says, 'This is salmonella of this type and this strain, ' and it does this qui...

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

...l-ether containing products, the team found that a person who spends 15 minutes cleaning scale off of a show...d-afternoon outdoor ozone concentration is high. A person who stays in the kitchen for two hours after using a moderate amount of one of the terpene-containin...

It's all in the genes

...e of disciplines because, as Whitham says, "No one person has all the skills to do this." "This is an exciting project with global impact, drawing on the expertise of geneticists, ecologists, molecular biologists, biogeographers and others," said Chris Greer, program director at the National Science Founda...

MIT 'seeing machine' offers hope to blind

...cuity of 20/70 or less in the better-seeing eye. A person with 20/70 vision can see nothing smaller than the... potential for "previewing" unfamiliar buildings a person wants to visit. Goldring explained that visually challenged people are often terrified of going to...

Heart has enough oxygen to survive hypothermia, CPR crucial

...ldest climes. Tveita recalled the recent case of a person in a warmer climate who became hypothermic after being swept out to sea on a cold current. Rats serve as model "In this study, we wanted to find out if there are problems with low blood pressure, low pulse, low cardiac output (the volume of blo...

Stimulation of the semicircular canals can artificially control human walking and balance

... stimulus could be applied in a way that allowed a person who was walking straight ahead to be steered by "remote control" without her balance being affected. The findings are reported by Richard Fitzpatrick and Jane E. Butler of the Prince of Wales Medical Research Institute and the University of New South...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...kets to match a specified pattern. This requires a person to strategize and plan several moves ahead. The experiment confirmed the authors' previous findings that people with autism suffer from a lack of synchronization among brain regions, which helps to explain why some people with autism have normal or...

Brain-computer link lets paralyzed patients convert thoughts into actions

... "is considerably less than that of an able-bodied person using a manually controlled computer cursor." De...these advances could ultimately enable a paralyzed person to control communication devices, medical devices, computer-controlled robotics, wheel chairs ?and e...

A sweet solution for Alzheimer's disease?

...up amyloid aggregates, he said. In the brain of a person with Alzheimer's disease, small proteins called amyloid â aggregate into plaques, and a protein called tau clumps into neurofibrillary tangles. The brain becomes inflamed and neurons atrophy and die. It's not completely clear what kind of amyloid â p...

Hope I die before I get old?

...so to rate on that same scale how happy an average person of their age would be. Each participant was also a...e also asked to guess the happiness of the average person at each of those ages. To make sure that their online survey methodology didn't skew the results b...

Discovery could aid fight against cystic fibrosis infection

...ith a weakened immune system, a burn patient, or a person with cystic fibrosis (CF)." Pseudomonas aeruginosa (PA), a pathogen that infects more than 80 percent of cystic fibrosis patients, is a leading cause of these patients' death. PA is difficult to treat because it is resistant to many drugs. "Sin...

Smokers invite to test vaccine against nicotine addiction

...inated smoker lights up months after quitting, the person should not experience the nicotine-triggered reward that tempts most people back into the habit. Northern California smokers over 18 are invited to join a national study to determine whether NicVax can help people abstain from smoking and help them...

Higher levels of obesity associated with greater health risks

....9); and extreme obesity (40 and greater). (A 5'4" person would have a BMI of 40 if they weighed 233 lbs). The latter 2 categories, sometimes termed severe obesity, are reported to be increasing especially rapidly in the United States, according to background information in the article. From 1986 to 2000, ...

Orange, grapefruit juice for breakfast builds bones in rats

...ion of grapefruit juice and certain medications, a person should ask a doctor. "In general, people should eat a variety of all the colors (in food) to get all of the beneficial compounds," Patil added. "And eat fresh." ...

Coffee makes us more likely to say 'yes'

...ola or energy drinks) might affect how persuaded a person is when, for example, listening to advertisements or a political speech on the radio/TV, reading a film review or in a business meeting to discuss work-related issues." ...

A cleaner, greener rice industry

...activities and treatments were developed to help a person live a more healthy life. "The same reasoning could be applied to environmental standards or indicators for ASEAN rice production leading to cleaner water, healthier ecosystems and a better environment for the entire region." In February, IRRI host...

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