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Tag: "impact" at biology news

Scientists discover a new risk factor for Alzheimer's

...many diseases you see multiple variations that all impact a specific gene." The team used the SNP databases to track the SORL1 gene in the populations studied, but did not actually pinpoint the precise changes in the gene that contribute to disease. "Now we need to go back and look in the regions around t...

New cigarette designs don't offer lower predicted cancer risks

...for tobacco product regulation." Clark studies the impact of comprehensive tobacco use prevention and control programs, as well as advertising and promotion of tobacco products in retail stores. "Dr. Pankow's study shows that simply lowering the levels of a few known harmful compounds from tobacco smoke ...

Old dinosaur research leads to new honor

... and I think it was because my research has had an impact in my field," says Reisz, a paleontologist at the University of Toronto. "I like to look at the very beginnings of major evolutionary events ?to that time when mammals and reptiles and birds were just becoming separate from each other. It was an exci...

Flavanols in cocoa may offer benefits to the brain

...new insights into how this flavanol-rich cocoa may impact health in a variety of ways not previously known,?...’s 78 million baby boomers are aging. The need to impact cognitive function and brain health will only continue to grow with this aging population. ...

Long-lived deep-sea fishes imperiled by technology, overfishing

...The harvest of older fish may have an even greater impact on these threatened populations because older fish are more likely to breed successfully than younger fish. "When you buy orange roughy at the store, you are probably purchasing a filet from a fish that is at least 50 years old," Heppell said. "Mo...

Biologists produce global map of plant biodiversity

...vides much needed assistance in gauging the likely impact of climate change on the services plants provide t...vides much needed assistance in gauging the likely impact of climate change on the services plants provide to humans. It may also help to pinpoint areas that ...

Primitive yeast yields secrets of human cholesterol and drug metabolism

...o-called pharmacogenetic variation will have a big impact on the future of medicine,?he says....

Bacteria research offers hope for new vaccine against meningococci

...that the bacteria aggregate in the thyroid and can impact hormone production during the infection,?says Ann-Beth Jonsson. The study also shows that bacteria that lack a certain adhesin (the protein that the bacteria cells use to adhere to the receptors) could not attach to mucous linings. Thanks to th...

Scientists produce neurons from human skin

...In the short term, this breakthrough might have an impact in the field of neuroscience research. "Producing neurons from skin cells could solve the problem of human neural cell availability for research," explains Berthod. "Since neurons do not multiply, researchers now have to rely on laboratory animal neu...

MicroRNA helps prevent tumors

... researchers have struggled to show the biological impact of a particular microRNA on a particular target in mammals (although such connections have been shown in plants, worms and flies). Several groups have demonstrated that over-expression or under-expression of a microRNA can play a role in certain canc...

Novel computed imaging technique uses blurry images to enhance view

...n the sample. "ISAM has the potential to broadly impact real-time, three-dimensional microscopy and analysis in the fields of cell and tumor biology, as well as in clinical diagnosis where imaging is preferable to biopsy," said Boppart, who is also a physician and founding director of the Mills Breast Can...

Adding radiation decreases breast cancer recurrence

...rgery for early stage breast cancer to examine the impact of treatment on the occurrence of recurrent and additional breast tumors for this patient population. This analysis was part of a larger study led by Rebecca Silliman, M.D., Ph.D., of the Boston University Medical Center. It was conducted under the a...

Morphine makes lasting -- and surprising -- change in the brain

...as little as a single dose of morphine. The drug’s impact was powerful: LTP continued to be blocked 24 hours later ?long after the drug was out of the animal’s system. "The persistence of the effect was stunning," Kauer said. "This is your brain on drugs." Kauer recorded the phenomenon in the ventral ...

Hay fever can send work productivity down the drain

... participants cited a lack of sleep and a negative impact on their overall health as the two main reasons fo...and a decrease in quality of life had the greatest impact on a person's ability to work, regardless of the treatment group they were in. Participants also cit...

Scientists identify specific enzymes that make meningitis hard to fight

... wide variety of bacteria and that it has a direct impact on the infectivity of human pathogens." Dr Geof...e during the repair process. This has an important impact for our understanding of the precise pathways of DNA repair and the significance of the two separate...

Study finds mercury prevalent in many western fish

... than the general population. Less clear is the impact of that mercury on fish-eating birds and mammals, said Robert Hughes, also an author on the paper and an OSU fisheries and wildlife research associate professor. "If I were a mink or an otter," Hughes said, "I'd be concerned. Those guys are loadin...

E. coli bacteria migrating between humans, chimps in Ugandan park

...antibiotics for human consumption can also have an impact on wildlife. The research team, which included researchers from Makerere University in Kampala, Uganda, and McGill University in Montreal, examined two of 10 known communities of chimpanzees living in Kibale National Park, Uganda. One of the ...

New dopamine brain target discovered

...ovel signalling pathway through which dopamine can impact the function of brain cells", said Dr. George. "This is significant because signalling through calcium release is a major mechanism regulating many important functions in the brain and we have provided the first direct mechanism by which dopamine ca...

Circumcision: A proven strategy to prevent HIV

...ly simple surgical procedure can have a very large impact on HIV." The study also measured adverse events related to surgery. According to Bailey, in 1.7 percent of the surgeries there were minor complications -- usually bleeding or a mild infection. There were no severe adverse events. Bailey caution...

Ocean's 'twilight zone' may be a key to understanding climate change

...e as a green-house gas, the oceans may have little impact on changes in the atmosphere or climate. The rese...n and is stored there, the oceans will have little impact on climate change." Buesseler was the leader of a project funded by the National Science Foundati...

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