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Science News for August 18, 2003


Adult mouse bone marrow stem cells can become cells of the nervous system

Researchers have successfully differentiated adult bone marrow stem cells into functional dopamine-producing cells, similar to those found in embryonic and neural stem cells. This breakthrough holds promise for developing new treatments for Parkinson's disease.

SourceUniversity of Minnesota·JournalProceedings of the National Academy of Sciences·DateAug 18, 2003

UCSD scientists develop novel way to screen molecules

Researchers use CD technology to detect biological interactions by exploiting errors in digital data. They attach molecules to a CD surface, allowing proteins to bind and introduce errors in the reading process.

SourceUniversity of California - San Diego·JournalOrganic & Biomolecular Chemistry·DateAug 18, 2003
SAMSUNG T9 Portable SSD 2TB

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Promising West Nile virus vaccine protects monkeys

A live but weakened virus is being tested as a potential West Nile virus vaccine, with promising results showing high levels of protective antibodies in monkeys. The vaccine has been shown to be effective in preventing the disease-causing virus while triggering a strong immune response.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalVirology·DateAug 18, 2003

Global analysis finds a large portion of the earth is still wilderness

A global analysis reveals that 44% of the Earth's land surface consists of 24 wilderness areas, but they are occupied by only 3% of the world's population. These high-biodiversity wilderness areas face significant threats from human activities, and conservation efforts are necessary to protect them.

SourceConservation International·JournalProceedings of the National Academy of Sciences·DateAug 18, 2003

Purdue researchers expose 'Docking Bay' for viral attack

Researchers at Purdue University have captured the clearest image yet of the T4 virus's docking bay, a complex structure that allows it to infect its host. This breakthrough could lead to new strategies for stopping viral infections and developing novel antibiotics.

SourcePurdue University·JournalNature Structural & Molecular Biology·DateAug 18, 2003
AmScope B120C-5M Compound Microscope

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Toxic protein could explain Alzheimer's and lead to breakthroughs

Researchers have found small, soluble aggregated proteins called ADDLs in the brains of individuals with Alzheimer's disease, up to 70 times more than in normal individuals. These proteins may be reversibly blocking memory function, providing a potential target for new therapeutic drugs.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateAug 18, 2003

Unfair treatment means African Americans prefer same-race doctors

A study by a UC assistant professor of sociology found that African Americans are twice as likely to prefer African American doctors and nurses if they or a family member experienced unfair treatment. The study analyzed national phone survey data collected by the Kaiser Family Foundation in 1999.

SourceUniversity of Cincinnati·DateAug 18, 2003
Sony Alpha a7 IV (Body Only)

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Threatened juvenile salmon get scientific assistance

Pacific Northwest National Laboratory has developed a culvert test bed to assess hydraulic conditions and fish behavior in various culvert designs. The system enables controlled experiments to address ESA issues and inform improved stream crossing designs, benefiting the well-being of fish runs in Washington State.

SourceDOE/Pacific Northwest National Laboratory·DateAug 18, 2003

New Alzheimer projections add urgency to search for prevention, cure

Researchers estimate that by mid-century, up to 16 million Americans will have Alzheimer's disease, with significant increases in prevalence among the oldest age group. Increasing funding for research is critical to prevent the disease or delay its onset and avoid devastating economic costs.

SourceAlzheimer's Association·JournalArchives of Neurology·DateAug 18, 2003

Weather extremes shed light on prairie's past and environment's future

A team of researchers from the Illinois State Water Survey and University of Illinois at Urbana-Champaign found that frequent droughts, lightning strikes, and fires are critical factors for the plains. Long-term data gathered since 1890 suggests that these extremes are key issues in addressing global climate change.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalPhysical Geography·DateAug 18, 2003

New tool helps researchers bone up on osteoporosis

Researchers at Purdue University have developed a new tool using dual energy X-ray absorptiometry (DEXA) to accurately determine bone mineral density in hens. The study found that more calcium resulted in greater bone mineral density and stronger bones, leading to potential improvements in egg production.

SourcePurdue University·JournalPoultry Science·DateAug 18, 2003

Annals of Internal Medicine, tip sheet, August 19, 2003

Research reveals that obese individuals are more likely to develop symptoms of acute mountain sickness at high altitudes, with lower blood oxygen levels. In contrast, smoking marijuana or taking synthetic cannabinoids in HIV patients did not affect key treatment indicators, according to a new study. A no-fault medical malpractice syste...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateAug 18, 2003
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