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Science News for March 9, 2008


Oregon study raises questions on synthetic progestins

Researchers found that MPA decreased endothelial function in premenopausal women, raising questions about long-term effects on cardiovascular health. The study suggests that exposure to synthetic hormones may reduce blood vessel flexibility, potentially leading to heart disease.

SourceUniversity of Oregon·DateMar 9, 2008
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Scientists determine structure of brain receptor implicated in epilepsy and PMT

Researchers identified the detailed structure of a GABA receptor type implicated in conditions like epilepsy and pre-menstrual tension. The discovery provides hope for developing drugs to block or stimulate the receptors, potentially leading to new treatments for these conditions.

SourceBiotechnology and Biological Sciences Research Council·JournalMolecular Pharmacology·DateMar 9, 2008

New discovery at Jupiter could help protect Earth-orbit satellites

A new discovery at Jupiter could help protect Earth-orbiting satellites by understanding how electrons are accelerated within the planet's magnetic field. The research found that very low frequency radio waves can accelerate electrons up to high energies inside Jupiter's magnetic field, similar to the way they do on Earth.

SourceBritish Antarctic Survey·JournalNature Physics·DateMar 9, 2008

Experts call for community mobilization to curb youth violence

Community mobilization is a key approach to prevent and reduce youth violence, according to experts. Studies from diverse communities show that collaborative partnerships, cultural appropriateness, and community ownership are essential factors in successful community mobilization.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateMar 9, 2008