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Science News for August 10, 2008


Scientists identify another piece of the weight-control puzzle

A study published in Nature Neuroscience identifies GABA as a key player in regulating energy balance, leading to leaner mice with increased energy expenditure and resistance to diet-induced obesity. The discovery suggests that targeting GABA release may be an effective strategy for tackling obesity and metabolic disease.

SourceBeth Israel Deaconess Medical Center·JournalNature Neuroscience·DateAug 10, 2008

Obesity genes revealed

A study of 228 women identified two genetic variants associated with body shape, one affecting European American women and the other African American women. These variants were also linked to weight, lean mass, height, total fat mass, and HDL-cholesterol levels.

SourceBMC (BioMed Central)·JournalBMC Genetics·DateAug 10, 2008
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Flexible nanoantenna arrays capture abundant solar energy

Researchers at Idaho National Laboratory developed a way to produce plastic sheets containing billions of nanoantennas that collect heat energy generated by the sun. The technology has potential to be mass-produced on flexible materials, powering devices with higher efficiency than traditional solar cells.

SourceDOE/Idaho National Laboratory·DateAug 10, 2008

Genes may make some people more prone to anxiety

Researchers found that people carrying a specific gene variation are more prone to anxiety and have an exaggerated startle reflex in response to unpleasant pictures. This suggests that genetic differences may play a role in regulating emotional arousal and contributing to anxiety disorders.

SourceAmerican Psychological Association·JournalBehavioral Neuroscience·DateAug 10, 2008

New bacterial species found in human mouth

Scientists discovered a new Prevotella species in the mouth, which could help understand oral diseases. The finding confirms that oral bacteria can invade tissues and individual cells, paving the way for new prevention measures and treatments.

SourceMicrobiology Society·JournalINTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY·DateAug 10, 2008