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Tag: "involves" at biology news

NIH researchers discover protein that appears to regulate bone mass loss, the cause of osteoporosis

...fractures. The basic mechanism behind osteoporosis involves an imbalance between bone mineral formation and loss, but the detailed biological processes that lead to this imbalance are not completely understood. Now researchers at the National Institute of Allergy and Infectious Diseases (NIAID), one of the Na...

Gene tests and brain imaging reveal early dementia

...efore the symptoms manifest themselves. Dementia involves a serious deterioration of mental function caused by some kind of dementia disease of the brain, of which Alzheimer's is the most common. Although there is currently no cure for Alzheimer's, it is possible to inhibit its development if the treatment ...

MIT model helps researchers 'see' brain development

...chl to perform this alignment. The second step involves modeling the folds of the brain mathematically in a way that allows the researchers to analyze their changes over time and space. The original brain scan is then represented computationally with points. Charting each baby's brain requires about 1...

Woven scaffolds could improve cartilage repair

... only bioengineering approach to such joint repair involves removing cartilage cells from patients and then "growing" them in a laboratory to form new cartilage. However, it can take several months to grow a piece of cartilage large enough to be implanted back into the patient. Additionally, this laboratory-g...

Enhancing activity of marijuana-like chemicals in brain helps treat

...ds," said Malenka. The treatment used on the mice involves enhancing the activity of the chemicals where they occur naturally in the brain. "That is a really important difference, and it is why we think our manipulation of the chemicals is really different from smoking marijuana." The researchers began...

Mimicking how the brain recognizes street scenes

...o mimic a brain disorder." One brain disorder that involves distortions in visual perception is schizophrenia, but nobody understands the neurobiological basis for those distortions. "The versatility of the biological model turns computer vision from a trick into something really useful," said co-author S...

Radiation therapy combo cures prostate cancer long-term

...patient procedure. External beam radiation therapy involves a series of 25 short daily outpatient treatments, where a radiation oncologist precisely directs high energy radiation beams to kill cancer cells. "This study is exciting because it shows that the combination of brachytherapy and external beam th...

Progress toward artificial photosynthesis?

...inspiration. Photosynthesis in modern green plants involves an important intermediate step: the bonding of CO2 to nitrogen atoms to form carbamates. The German researchers thus also experimented with nitrogen-rich catalysts with structures that allow them to form carbamates. Their new class of catalysts is ma...

Study shows hope for early diagnosis of Alzheimer's

...o community clinics and hospitals. Our methodology involves just one ‘snapshot?that in itself is highly accurate and will be especially beneficial in these locations.? "Modern engineering methods are enabling us to take EEG, an 80-year-old technique for measuring brain activity, and turn it into a cutting-e...

Saving endangered whales at no cost

..., American-side lobster fishing is year-round, and involves 8? times more lobster traps in the water at any given time. Despite these significant differences in fishing "effort" and cost, Maine has only about 30% higher catches than the Canadian Fishing Area. Accordingly, the researchers estimate that the num...

Mechanisms involved with tumor relapse identified

...tegies to fight a number of cancers. Immunotherapy involves the manipulation of the immune system ?by introducing an antibody or lymphocytes, or immunization with a tumor vaccine ?to recognize and eradicate tumor cells. Using a transgenic mouse model of breast cancer, researchers found that interferon gam...

Grape expectations for healthier wine

...ent preservative methods with a new technique that involves exposing macroperforated packages of grapes at 0 degress C to cycles of 0.1 micro liters per liter of ozone. They found that ozone treatment was 90% as effective as SO2 at preventing decay. In addition, ozone-treated grapes had up to four times mor...

Iowa State University botanists identify new species of North American bamboo

...es together with traditional plant taxonomy, which involves observation and description of a plant's form, anatomy, ecology and other characteristics. "We want to get the big picture of how all the temperate bamboos are related to each other. That means taking inventory of what exists, then comparing notes...

UW launches study testing adult stem cells for heart damage repair

...sands of people, is a serious heart condition that involves narrowing of coronary arteries and results in limi...mized, double-blind, placebo-controlled study that involves adult subjects who have severe coronary artery disease, are currently on maximal medical therapy and...

UCSF brain tumor vaccine trial shows promising results

...ients with recurrent, high-grade glioma. The trial involves two groups of six patients, both of whom receive a minimum of four injections. The first group receives biweekly vaccinations and the second receives weekly vaccinations. Patients are monitored for immune response before, during and after treatment....

New biofuels process promises to meet all US transportation needs

...thod for turning biomass or coal into liquid fuels involves first breaking down the raw material with a chemical process that "gasifies" it into carbon dioxide, carbon monoxide and hydrogen. Then those constituents are turned into a liquid fuel with other processes. In the H2CAR concept, hydrogen would be ...

Finnish scientists discovered a new approach to treat virus-induced lymphomas

...ity for this virally-induced lymphoma. The project involves scientists from two Academy of Finland National Centre of Excellence Programs, the Translational Genome-Scale Biology and Cancer Biology. The study will be published 15.3.2007 in the Journal of Clinical Investigation. TP53 gene encodes a transcri...

Researchers create artificial enzyme that mimics the body's internal engine

...s as building materials. The imitation site, which involves an elaborate sequence of 32 chemical steps, was built from scratch and took several years to develop. The site contains the three active centers found in the naturally occurring enzyme: an organic molecule called phenol, an iron atom and a copper ...

RNA enzyme structure offers a glimpse into the origins of life

...e he succeeded. Using x-ray crystallography--which involves shining a beam of x-rays through the crystals and analyzing the resulting diffraction patterns--Robertson and Scott were then able to determine the three-dimensional structure of the ribozyme. The ribozyme has three stems that radiate from a centr...

No carrier necessary: This drug delivers itself

...f nanocrystals of a hydrophobic drug. The system involves the use of nanocrystals measuring about 100 nanometers of pure HPPH, (2-devinyl-2-(1?hexyloxyethyl) pyropheophorbide), a photosensitizer currently in Phase I/II human clinical trials at RPCI for treating various types of cancer. The UB researchers ...

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