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Science News for December 16, 2007


Neuronal circuits able to rewire on the fly to sharpen senses

Researchers from Carnegie Mellon and Pitt describe a mechanism called dynamic connectivity, where neuronal circuits are rewired in response to specific patterns of stimuli. This process allows for more keenly sensed stimuli, such as recognizing scents, by filtering out noise and enhancing contrast.

SourceCarnegie Mellon University·JournalNature Neuroscience·DateDec 16, 2007
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Survival shortened when ER/PR negative breast cancer spreads to the brain

Two studies from Mayo Clinic found that ER/PR negative breast cancers have the worst overall outcomes when spreading to the brain, resulting in shorter median survival times. Women with triple negative tumors and HER2+ tumors without estrogen or progesterone receptors have poor outcomes due to aggressive brain metastasis.

SourceMayo Clinic·DateDec 16, 2007

New approach for attacking lupus identified

Researchers have discovered two new targets for drugs aimed at controlling lupus by regulating the balance between inflammatory and antiviral effects of interferons. By blocking specific kinases in the calcium-signaling pathway, they were able to suppress STAT1 activation and preserve antiviral effects.

SourceHospital for Special Surgery·JournalNature Immunology·DateDec 16, 2007
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Drug combination shrinks breast cancer metastases in brain

A combination of lapatinib and capecitabine significantly shrinks brain metastases in patients with aggressive HER2-positive breast cancer, with 10 patients experiencing a 50% reduction. The study's findings offer new hope for treatment options for women with advanced breast cancer who develop brain metastases.

SourceDana-Farber Cancer Institute·DateDec 16, 2007

Indonesia's 'Lost World' reveals more surprises

Scientists discover two new mammal species, a tiny possum and giant rat, in the remote Foja Mountains. The region is also home to numerous rare and little-known bird species, including the 'lost' Bird of Paradise.

SourceConservation International·DateDec 16, 2007