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Science News for December 12, 2004


M. D. Anderson researchers discover key protein in psoriasis

Researchers found that a protein called STAT3 is crucial for the development of psoriasis and can be reversed with a specific treatment. The study's findings offer a potential new target for medications to relieve symptoms of psoriasis.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalNature Medicine·DateDec 12, 2004

Cumulative trauma in adulthood can worsen health in later years

A study of 1,518 older adults reveals that cumulative trauma across adulthood can worsen health in later years, particularly for those experiencing traumatic events between 18-30 and 31-64 years. Researchers found that younger adults were more affected by adult trauma than childhood adversity.

SourceAmerican Psychological Association·JournalPsychology and Aging·DateDec 12, 2004
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Researchers show how botulism toxin ensnares its target

Scientists have identified a key mechanism by which botulinum neurotoxin recognizes and attacks specific nerve cell proteins. The discovery reveals an extensive interaction between the toxin and its target, known as exosites, enabling high specificity.

SourceHoward Hughes Medical Institute·JournalNature·DateDec 12, 2004

New study shows early ritalin may cause long-term effects on the brain

A recent study published at the ACNP Conference found that exposing rats to Ritalin during early development can lead to reduced ability to experience pleasure and reward, as well as depressive-like behaviors in adulthood. This raises concerns about the long-term effects of ADHD medication on normal-functioning brains.

SourceThe Reis Group·DateDec 12, 2004

Selective coatings create biological sensors from carbon nanotubes

Researchers developed molecular sheaths around carbon nanotubes to respond to glucose, detecting it with near-infrared fluorescence. The technique allows for real-time monitoring of blood glucose levels with long-term monitoring applications.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Materials·DateDec 12, 2004