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Science News for September 25, 2000


Voices in the head not to be ignored

A study of 103 psychiatric patients found that those experiencing command hallucinations are more than twice as likely to be violent. The analysis controlled for other risk factors, suggesting the importance of assessing command hallucinations when evaluating violence risk.

SourceAmerican Psychiatric Association·JournalPsychiatric Services·DateSep 25, 2000
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Scientists decipher the 'zip codes' that direct cells in the bloodstream to bodily tissues where they're needed

Researchers have identified key molecules on the surface of blood cells that guide them to their rightful targets in the body's tissues. This process, known as cell trafficking, is crucial for the proper function of the immune response and helps prevent cancerous cells from spreading.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateSep 25, 2000

One-third of states get low grades on evolution

According to a report by Lawrence S. Lerner, 31 states handle evolution adequately, but only nine explicitly cover human evolution and another nine do so by implication. The remaining 19 states receive poor grades for teaching evolution, with some even avoiding the term altogether.

SourceAmerican Association for the Advancement of Science (AAAS)·DateSep 25, 2000
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FAA funds Northwestern research on aging wiring

Researchers at Northwestern University are developing a non-destructive test to detect small flaws, latent flaws, and general degradation in commercial aircraft wiring. The FAA is funding the $450,000 grant, which aims to improve aircraft safety by identifying critical degradation levels of aging wiring without removal from its location.

SourceNorthwestern University·DateSep 25, 2000

BU receives Knight Foundation grant

Boston University will create an international science and medical journalism center with a $1.1M Knight Foundation grant. The center aims to improve the quality of medical journalism, train journalists to report on scientific advances, and increase global coverage.

SourceBoston University·DateSep 25, 2000

Colic twice as likely in babies whose mothers smoke

Research in the Archives of Disease in Childhood found that babies whose mothers smoked were twice as likely to experience colic. Breastfed infants were less prone to colic when their mothers smoked, highlighting a potential risk factor for smoking mothers.

SourceBMJ Specialty Journals·JournalArchives of Disease in Childhood·DateSep 25, 2000

Argonne leads new Midwest Center for Structural Genomics

The Midwest Center for Structural Genomics aims to cut the cost of determining protein structures from $100,000 to $20,000, reducing analysis time from months and years to days and hours. The center will select protein targets from various kingdoms of life to study disease-causing proteins.

SourceDOE/Argonne National Laboratory·DateSep 25, 2000

Researchers take steps to growing replacement blood vessels

Researchers at Ohio State University are investigating ways to re-grow tiny blood vessels to keep damaged heart tissue alive after a heart attack. They have demonstrated that endothelial cells can grow in grooves carved in the surface of a soft transparent gel in the laboratory, paving the way for future transplants.

SourceOhio State University·DateSep 25, 2000
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Researchers trace roots of vivid memories

Researchers used fMRI to probe the roots of a longstanding hypothesis in memory research. They found that recalling sensory-specific experiences activates brain regions responsible for processing those experiences. However, they also discovered that high-level perception areas are selectively reactivated during remembering, suggesting ...

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateSep 25, 2000

New colorectal cancer gene identified

Researchers at Mayo Clinic have discovered a new gene, AXIN2, linked to colorectal cancer development. Mutations in this gene elevate Beta-catenin levels, contributing to the disease.

SourceMayo Clinic·JournalNature Genetics·DateSep 25, 2000

NIGMS Structural Genomics Awards scale up protein structure studies

The NIGMS Structural Genomics Awards will support seven research centers in determining the structures of thousands of proteins over the next decade. The project aims to advance our understanding of biological processes and develop new treatments for diseases.

SourceNIH/National Institute of General Medical Sciences·DateSep 25, 2000