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Tag: "attention" at biology news

Parallel evolution: Proteins do it, too

...rce of nitrogen in leaf eaters. Zhang focused his attention on RNASE1, a pancreatic enzyme that breaks down bacterial RNA. Most primates have one gene encoding the enzyme, but he found that the douc langur, a colobine from Asia, has two---one encodes RNASE1, and its duplicate encodes a new enzyme, RNASE1B. Th...

Leptin found to control appetite and limb development in frogs

...can begin sprouting limbs. "Leptin gets a lot of attention for its role in food intake, but it's clear that it does lots of other jobs," he said. The hormone is known to be part of a family of proteins called cytokines that includes pituitary growth hormone, and it has been found to increase cell proliferati...

Loosen up, DNA: Leukemia gene changes genetic packaging

...enes is largely known, scientists are turning more attention to broader mechanisms of how the body controls those genes, turning them on and off as needed. It's a crucial issue for diseases like cancer, where many genes are turned on or off when or where they shouldn't be, causing cells to grow out of contro...

Arctic expedition will investigate alien-like glacier

... environment." The spring has also attracted the attention of the Canadian Space Agency and NASA, which are helping to fund the expedition, because it likely provides the best example on Earth for the conditions believed to exist on the surface of Jupiter's moon Europa. Ice-covered Europa is considered one o...

New flood-tolerant rice offers relief for world's poorest farmers

...ringflooding. The researchers then focused their attention on one of those threegenes, known as the Sub1A gene. They found that when this gene isover-expressed, or hyper-activated, a rice variety that is normallyintolerant of submergence becomes tolerant. Further studies indicated that the Sub1A gene is li...

T cells activated to fight HIV basis for dendritic cell therapeutic vaccine

...ndritic cells in such a way that they will get the attention of killer T cells. Results of these studies will be incorporated into the protocol for a clinical trial of the vaccine, which is expected to begin later this year. "The goal of the approach is to teach killer T cells to more efficiently find, detec...

Nicotine exposure during development leads to hearing problems

... Researchers believe that when people are paying attention to something, such as an important sound, acetylcholine is released into the brain. It then interacts with the nicotinic-acetylcholine receptor and, the UCI study showed, thereby enhances sensitivity to that sound. If that receptor is damaged due to ...

Global study shows all tobacco bad for the heart

...of tobacco." "People around the world should pay attention to the message that it's never too late to quit. This is an important study documenting the powerful and persistent dangers of tobacco use worldwide," said Dr. Peter Liu, scientific director for CIHR's Institute of Circulatory and Respiratory Health...

Five surprising facts about starvation that could change the international agenda

While public attention gravitates towards conflict and natural disaster, ... "Millions of children need immediate, life-saving attention coupled with coordinated longer-term investments that will help prevent repetitions of nutrition and...

Virtual realities against pain

...ment in the perception of pain, with the amount of attention given to the harmful stimulus affecting the percep...tention, resulting in a reduction in the patient's attention to the stimulus and therefore a reduction in the stimulus itself. It was assumed that the ideal dist...

Mechanism identified for promising neurological drug

..., "minocycline has received a tremendous amount of attention in the last ten years," according to Swanson. Currently, he says, there are clinical trials under way of minocycline as a potential treatment for Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis (ALS), all of which cause b...

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

...on. However, now we've learned that we need to pay attention to other aspects of pollution sources that are right under our nose," said William Nazaroff, a UC Berkeley professor of environmental engineering and the study's lead author. To comply with its mandate to protect public health and welfare, for the p...

Study reveals how ADHD drugs work in brain

...n medications such as Ritalin to quell symptoms of attention deficit hyperactivity disorder (ADHD), scientists ...tter levels in the brain, which can in turn impair attention and heighten the risk of developing addiction. "It is surprising that no one was looking at low-dos...

Memory loss affects more of the brain than previously thought

...e findings suggest that we should be paying closer attention to frontal lobe function in detecting people at risk for AD and may also point to new preventive strategies," said co-principal investigator P. Murali Doraiswamy, M.D., chief of the Division of Biological Psychiatry in the Department of Psychiatry at...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

...ephrine levels in the brains of rats to help focus attention while suppressing nerve signal transmissions in th...ogy helps explain how a stimulant aids people with attention deficit and hyperactivity disorders to improve their focus without increasing their motor activity. ...

How nice, brown rice: Study shows rice bran lowers blood pressure in rats

... in Davis, Calif. “This particular paper caught my attention for two reasons: the potential of bringing a waste product like rice bran into beneficial use, and the way the group went about their study with good controlled experiments using an appropriate model.?/p> It’s still not clear whether simply eatin...

New weapon in battle against osteoporosis

...oved and faster diagnosis. Second, they have drawn attention to a previously unknown regulatory mechanism, making it a focus of osteoporosis research. Here lies the chance of developing new medicines in the long-term. ...

Understanding the actions of others requires the frontal cortex

...to determine the weight of the box by paying close attention to the actions of the actor. Normally, participants can succeed in this task without much trouble, but performance was significantly impaired if the left frontal cortex was stimulated while the videos were shown. This result indicates that the left f...

Molecular force field helps cancer cells defend against attack

... adhesion kinase, or FAK, is commanding increasing attention and has spawned a flurry of research designed to develop new drug therapies, said Cance, who is known internationally for his genetic investigations of tumor survival. These medicines would prevent FAK from linking with the protein known as vascular ...

One fish, two fish: New MIT sensor improves fish counts

...ontinental shelf, so the researchers focused their attention on the waters south of Long Island, New York. When they first started, they weren't looking for fish at all - they wanted to see if their device could locate ancient riverbeds under the ocean floor. But when their reconnaissance images did not match ...

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