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Tag: "experience" at biology news

Researchers discover new gene responsible for brittle bone disease

...ublished today in the journal Cell. Victims may experience just a few fractures in a lifetime or several hundred beginning before birth. The number of Americans affected is unknown, but estimates range from 20,000 to 50,000. While the study is an important early step in the search for a cure, its immediate e...

Walking not enough for significant exercise benefits

...popular form of exercise, but may not be enough to experience significant health benefits, a University of Alberta study shows. "Generally, low-intensity activity such as walking alone is not likely going to give anybody marked health benefits compared to programs that occasionally elevate the intensity," said...

Too mellow for our predatory world

...examined by the scientists: marine iguanas with no experience of predator-pressure tolerated a human approach up to one or two metres and failed to mount a stress response even during sustained chasing. Darwin had already described the remarkable tameness of these animals, also termed "low wariness", during his...

Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too

...nucleus accumbens, it was related to the emotional experience of pain. The study used positron emission tomography, or PET, scanning that allowed the researchers to calculate the level of dopamine activity by measuring the percentage of dopamine receptors on the surface of brain cells that were active. To do...

Patients can report statins' adverse effects on new web site

...statin drugs are rare, there are some patients who experience serious consequences of taking these drugs. "We received many calls from patients in the community experiencing side effects, and wanting answers about what to expect. We developed this web site as a tool to gather information on side effects, and ...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...cipants in their study in 2004-05 had enough prior experience with influenza that the live attenuated virus may have failed to infect their nasal passages and initiate an immune response as it is intended to do. However, both still believe that the nasal spray is very effective in children and may be more effec...

Human stem cells delay start of Lou Gehrig's disease in rats

... inherited form of ALS. As in human ALS, the rats experience slow nerve cell death where all the muscles in the body eventually become paralyzed. The particular SOD-1 rats in the study developed an "especially aggressive" form of the disease. Adult rats not yet showing symptoms were injected in the lower sp...

Researchers discover mechanism that determines when detailed memories are retained

... learning task correlated with more details of the experience being remembered. The results are the first to tie levels of acetylcholine to memory specificity and could have implications in the study and treatment of memory-related disorders. The findings appear in the November issue of the journal Neurobiol...

New tool helps blood specialists improve patient care

...way they care for patients. The importance of this experience is invaluable, not only to the physician, but to the patient as well." From applying these measures, physicians will then be able to enter the resulting data into ABIM's online module to examine their current processes of care for diagnosis, evaluat...

Does missing gene point to nocturnal existence for early mammals?

...ry of Science journal PLoS Biology ?reveal how our experience of the light environment may be impoverished compared to other vertebrates and fits with the suggestion that early mammals were at one time wholly nocturnal creatures. "The classical view of how the eye sees is through photoreceptive cells in the ...

LSU professor discovers new species

...der another." With more than 15 years of fieldwork experience behind him, Austin knew immediately that he had found a new species. After collecting the lizards, he and Das began the difficult work of proving what they already knew. "Determining that a species is new to science is a long and laborious process,...

Muscle and bone from an ink-jet printer

...the Pittsburgh biologists have gained considerable experience in using growth factors to control proliferation and differentiation in populations of “muscle-derived stem cells,?or MDSCs. Previous work by University of Pittsburgh researchers has demonstrated the ability of MDSCs to repair muscle in a model for D...

Supercomputing equipment to advance the frontiers of computational biology

...ent will provide a resource for scientists to gain experience with the Blue Gene computing environment, while also supporting a project to develop new simulation technologies for understanding biological systems. The work will help researchers develop algorithms and software that run efficiently on Blue Gene te...

Firefighters face increased risk for certain cancers

...lation between the chemical exposures firefighters experience on the job and their increased risk for cancer," says LeMasters, professor of epidemiology and biostatistics at UC. Firefighters are exposed to many compounds designated as carcinogens by the International Agency for Research on Cancer (IARC)--inc...

Memories: It's all in the packaging, scientists say

...plain why sometimes people only recall parts of an experience such as a car accident, and yet vividly recall all of the details of a similar experience. In experiments using functional magnetic resonance imaging (fMRI), the scientists were able to view what happened in the brains of subjects when they experi...

Elusive rust resistance genes located

... contain the Lr34 / Yr18 combination of genes also experience slower rates of rust infection. This prevents widespread and rapid increase of rust spores reducing the potential for disease epidemics throughout the crop. "Up until now it has been difficult to track Lr34 / Yr18 in wheat because of the masking e...

Environmental toxins may cause body's defenses to worsen lung disease

... investigator for the study. "But when the lungs experience chronic, low-level damage, we believe at some point that damage exceeds the body's natural ability to repair tissue," he adds. "And through the destruction of lung tissue, it may actually start contributing to chronic lung disease instead of protecti...

LSD treatment for alcoholism gets new look

...ad not had a sip of alcohol since their single LSD experience 40 years earlier. According to one study condu... the Saskatchewan group's experiments. "The LSD experience appeared to allow the patients to go through a spiritual journey that ultimately empowered them to h...

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

...of the company. "Sal learned about biology and got experience with a start-up, and Dick and I got business expertise. It was a great partnership," Filutowicz says. In addition to federal funding from the National Science Foundation and the Department of Defense, the company has also attracted so-called angel...

New research identifies gene important for nicotine's effects on the brain

...xplain why people who quit smoking can continue to experience cravings many years later or even start smoking again." Picciotto hopes her findings lead to the development of new targets for smoking cessation therapies. However, it will not be easy to target the signaling molecules manipulated in this study i...

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