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Science News Archive October 2013 - Page 29


Page 29 of 34

Battling defiant leukemia cells

A study finds that chronic myeloid leukemia cells with activating beta-catenin mutations are highly aggressive and resistant to Imatinib. Combined treatment with drugs restoring IRF8 expression and inactivating beta-catenin may prevent fatal leukemia progression.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateOct 7, 2013

3-D printed microscopic cages confine bacteria in tiny zoos for the study of infections

Scientists create tiny houses for bacteria using a novel 3D printing technology, enabling precise control over bacterial interactions and growth. The method reveals that certain bacterial communities become more resistant to antibiotics when contained together, providing new insights into infection mechanisms.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateOct 7, 2013

UAlberta medical research team designing new drug for common heart condition

A team of UAlberta medical researchers has developed a potential new treatment for atrial fibrillation, a common heart rhythm problem affecting 1 in 200 people. The new drug, based on the resveratrol compound found in red wine and nuts, regulates electrical activity in the heart and reduces abnormal heart-rhythm episodes.

SourceUniversity of Alberta Faculty of Medicine & Dentistry·JournalBritish Journal of Pharmacology·DateOct 7, 2013

How JC Polyomavirus invades cells

The study reveals that JC polyomavirus uses specific serotonin receptors to gain entry into cells, contrary to initial hypotheses. This discovery could lead to improved treatment options for patients with PML by informing how existing drugs work.

SourceBrown University·JournalJournal of Virology·DateOct 7, 2013

Better robot vision

A new robot-vision algorithm based on the Bingham distribution can identify object orientations more accurately than existing algorithms, with a 50% improvement in cases of poor visual information. The algorithm combines probabilities from different sources and has been successfully tested in cluttered scenes.

Cells prefer nanodiscs over nanorods

Researchers discovered that mammalian cells prefer disc-shaped nanoparticles over rod-shaped ones under typical culture conditions. The study's findings could help design better therapies for various diseases by understanding how nanoparticle shape affects transport into cells.

SourceGeorgia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateOct 7, 2013

What evolved first -- a dexterous hand or an agile foot?

Researchers used brain imaging and fossil evidence to confirm earlier studies on somatotopic maps in humans and monkeys. Early hominids evolved dexterous fingers when still quadrupeds, while bipedal locomotion led to a separate adaptation of the big toe for balance control.

SourceRIKEN·JournalPhilosophical Transactions of the Royal Society of London (B )·DateOct 6, 2013

Identical twins with significant weight differences shed light on the phenomenon of metabolically healthy obesity

A study of identical twins with significant weight differences found that in half of the pairs, the obese twin had a poorer blood fat profile and increased risk of diabetes. In contrast, the other half showed no difference in metabolic health between the two twins, shedding light on the 'metabolically healthy obesity' phenomenon.

SourceDiabetologia·JournalDiabetologia·DateOct 6, 2013

Bt sweet corn can reduce insecticide use

A new study suggests that genetically modified Bt sweet corn can reduce the need for traditional insecticides, resulting in increased marketability and profitability for farmers. The research found that Bt sweet corn outperformed non-Bt varieties in controlling pest infestations, even with conventional insecticide applications.

SourceEntomological Society of America·JournalJournal of Economic Entomology·DateOct 6, 2013

NASA's moon landing remembered today as a promise of a 'future which never happened'

Researchers claim NASA portrayed astronauts as pioneering cowboys in its images of the moon landing, promising a future that never materialized. The study analyzed over 400 memory cards from visitors to the National Space Centre and found half contained a reference to the moon landing as a glimpse into a future that never came true.

SourceUniversity of Leicester·JournalInternational Journal of Management Concepts and Philosophy·DateOct 4, 2013