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Science News Archive March 2011 - Page 11


Page 11 of 28

How the lily blooms

Researchers found that rapid growth and wrinkling at the periphery of petals create stress within the bud, forcing it to open. This contradicts earlier theories about flower blooming, but supports a theory proposed by German literary master Johann Wolfgang von Goethe.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateMar 21, 2011

Breakthrough in Niemann-Pick Type C research reported by Notre Dame and Cornell scientists

Scientists at Notre Dame and Cornell have made a breakthrough in understanding the genetic disorder Niemann-Pick Type C, which affects brain cells and causes devastating symptoms. Using histone deacetylase inhibitors, researchers were able to correct the damage done by the genetic flaw and restore normal cell function.

SourceUniversity of Notre Dame·JournalProceedings of the National Academy of Sciences·DateMar 21, 2011

Time lived with obesity linked with mortality

A Monash University study has found a direct link between time lived with obesity and the risk of mortality. Participants who experienced medium to long durations of obesity had significantly higher mortality rates compared to those who were never obese.

SourceMonash University·JournalInternational Journal of Epidemiology·DateMar 21, 2011

Men fuel rebound in plastic surgery

The American Society of Plastic Surgeons reports a significant increase in men undergoing cosmetic procedures, with over 1.1 million procedures performed in 2010. Facelifts and other surgical procedures saw substantial growth, bucking the trend of minimally-invasive treatments.

Primordial soup gets spicier

Researchers have reanalyzed Stanley Miller's 1958 'primordial soup' samples and found a diverse array of organic compounds, including sulfur amino acids. The discovery supports the hypothesis that volcanoes and lightning played a key role in creating the building blocks of life on Earth.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateMar 21, 2011

Unknown animals nearly invisible but yet there

A new DNA study by University of Gothenburg researchers has uncovered over 120 previously unknown bryozoan species in Swedish waters, including a completely new species. The findings shed light on the evolution and relationships of these nearly invisible animals, which are found in marine and freshwater environments.

SourceUniversity of Gothenburg·JournalMolecular Phylogenetics and Evolution·DateMar 21, 2011

Biofilm reorganization: Back to the theoretical drawing board

Researchers used image-analysis methods to analyze microcinematic movies of bacteria forming aggregates, revealing that size matters most in predicting survival. The team found a signaling mechanism within the aggregate itself that trumps neighbor-related factors, contradicting existing theories.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateMar 21, 2011

Computerized systems reduce psychiatric drug errors

Researchers at Johns Hopkins Medicine found that coupling electronic prescription drug ordering systems with computerized adverse event reporting dramatically reduced medication errors in a psychiatric unit from 27.89 to 3.43 per 1,000 patient days over four years. The system's integration of decision support and safety net tools furth...

SourceJohns Hopkins Medicine·JournalJournal of Psychiatric Practice·DateMar 21, 2011

Climate change hits home

A new study reveals that people who experience flooding are more likely to perceive climate change as a pressing issue and take action to reduce their energy use. The research found that direct experience of extreme weather events can increase concern about climate change and willingness to engage in energy-saving behavior.

SourceUniversity of Nottingham·JournalNature Climate Change·DateMar 21, 2011

Scientists grow personalized collections of intestinal microbes

Researchers at WashU Medicine successfully grew and manipulated human intestinal microbes, identifying new probiotics and exploring microbe transplants as a treatment for obesity and diseases. The study provides a pipeline for manipulating diverse microbial communities from people of different ages and cultures.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateMar 21, 2011

New data published in Nature Genetics demonstrate that tiny LNA-based compounds developed by Santaris Pharma A/S inhibit entire disease-associated microRNA families

Tiny LNA-based compounds developed by Santaris Pharma A/S successfully inhibit entire microRNA families, targeting cancer, viral infections, and cardiovascular diseases. The high affinity and target specificity of these compounds enable functional inhibition without off-target effects.

SourceEdelman PR·JournalNature Genetics·DateMar 20, 2011

Climate change hits home

A new study by Cardiff University and Ipsos-MORI found that direct experience of extreme weather events like flooding can significantly affect people's perceptions of climate change. As a result, individuals who have experienced flooding are more prepared to take personal action and reduce their energy use.

SourceCardiff University·JournalNature Climate Change·DateMar 20, 2011

Mutant prions help cells foil harmful protein misfolding

Researchers at Brown University have discovered that mutant prions can aid cells in overcoming harmful protein misfolding, a process thought to be catastrophic. The findings suggest that targeted interventions at various stages of the misfolding process can enable cells to overcome the problem.

SourceBrown University·JournalNature Structural & Molecular Biology·DateMar 20, 2011

Preventive antibiotic use significantly lowers risk of infection with antibiotic-resistant bacteria in intensive care patients

A large randomized trial found that preventive antibiotic use significantly reduces the risk of infection with highly resistant microorganisms in intensive care patients. Patients treated with selective digestive tract decontamination (SDD) were 59% less likely to develop bacteraemia and 38% less likely to colonize respiratory tracts.

SourceThe Lancet_DELETED·JournalThe Lancet Infectious Diseases·DateMar 20, 2011