Add BrightSurf on Google Email

Science News Archive June 2012 - Page 24


Page 24 of 29

Researchers love triangles

A research team at Case Western Reserve University discovered that gold catalysts in the form of a triangle or higher order structures can produce longer, faster-growing nanowires. These wires could be used to build next-generation invisible computer chips and highly-sensitive sensors.

SourceCase Western Reserve University·JournalNano Letters·DateJun 6, 2012

Study: Why hot, humid air triggers symptoms in patients with mild asthma

A study published in the American Journal of Respiratory and Critical Care Medicine found that hot, humid air triggers an increase in airway resistance in patients with mild asthma, leading to coughing and airway constriction. Inhaling an asthma drug before exposure to hot, humid air prevented this reaction.

SourceNationwide Children's Hospital·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 6, 2012

Growing presence of drug-resistant tuberculosis fuels need for more screening, faster testing and faster development of new combination therapies, experts say

A nationwide survey in China reveals one in 10 newly diagnosed TB patients are infected with drug-resistant strains, with over 5,000 cases annually. Experts emphasize the need for rapid testing to determine drug resistance and developing new combination therapies to combat multidrug-resistant tuberculosis.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateJun 6, 2012

Study predicts imminent irreversible planetary collapse

Researchers warn of an impending catastrophic event where the planet's ecosystems irreversibly collapse due to extreme fluctuations in climates and biodiversity loss. The study suggests that governments must take immediate action to reduce population growth, invest in sustainable technologies and adopt environmentally-friendly practices.

SourceSimon Fraser University·JournalNature·DateJun 6, 2012

Tracing the brain's connections

Scientists at Harvard University have created a comprehensive list of inputs that connect directly to dopamine neurons in the brain, revealing new connections and insights into Parkinson's disease and addiction. The study uses genetically-modified rabies virus to track neural pathways, providing quantitative data for future investigati...

SourceHarvard University·JournalNeuron·DateJun 6, 2012

Biomarkers may predict the progression of spinal damage in patients with ankylosing spondylitis

Researchers identified five biomarkers that can predict the progression of structural damage in the spine of patients with Ankylosing Spondylitis, who are already at high risk of disease progression. These biomarkers include matrix metalloproteinase 3, bone-morphogenetic protein 2, and vascular endothelial growth factor.

SourceEuropean Alliance of Associations for Rheumatology (EULAR)·JournalAnnals of the Rheumatic Diseases·DateJun 6, 2012

How plants make cocaine

Researchers at Max Planck Institute for Chemical Ecology have discovered a new enzyme in the coca plant that catalyzes a key step in cocaine biosynthesis. The discovery sheds new light on the evolution of tropane alkaloids and reveals that the pathways in coca and belladonna evolved independently.

SourceMax Planck Institute for Chemical Ecology·JournalProceedings of the National Academy of Sciences·DateJun 6, 2012

Wiring the brain, through experience

Researchers at Harvard University found that mice brains undergo an explosion of neuromuscular branching before birth, with some muscle fibers contacted by up to 10 nerve cells. However, within days, most connections are pruned away, suggesting experience selects which connections to keep.

SourceHarvard University·JournalNeuron·DateJun 6, 2012

News alert: Journal of the American Academy of Orthopaedic Surgeons June highlights

The June issue of the Journal of the American Academy of Orthopaedic Surgeons highlights the negative impact of smoking on bone and joint health. Smokers face increased risks of postoperative complications and bone density loss, but preoperative counseling programs can mitigate these effects. The journal also discusses treatment option...

SourceAmerican Academy of Orthopaedic Surgeons·JournalJournal of the American Academy of Orthopaedic Surgeons·DateJun 6, 2012

Researchers at IRB Barcelona uncover new clues about the origin of cancer

Researchers at IRB Barcelona have identified specific combinations of errors in cell integrity processes as crucial to initiating tumors. The study reveals that genomic instability alone is not sufficient for tumor development and highlights the need for further investigation into cancer's complex origins.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalProceedings of the National Academy of Sciences·DateJun 6, 2012