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Science News Archive April 2011 - Page 11


Page 11 of 26

Intellectual disability is frequently caused by non-hereditary genetic problems

Researchers identified mutations in genes associated with brain activity that frequently cause intellectual disability. These de novo mutations disrupt nerve cell communication, affecting at least two-thirds of cases. The study provides new insights into the genetic origins of intellectual disability and may lead to improved diagnostics.

SourceUniversity of Montreal·JournalAmerican Journal of Human Genetics·DateApr 18, 2011

Television 'breakups' cause some viewers distress

A study found that TV viewers who relied on television for companionship felt the most distressed when their favorite shows temporarily went off the air during the 2007-08 writers' strike. The study also showed that women were more likely to cope with this distress by engaging in social activities.

SourceOhio State University·JournalMass Communication & Society·DateApr 18, 2011

Results on national study of parental concerns about childhood vaccines announced

A new national survey of primary care physicians reports a significant increase in parental concerns about childhood vaccines, with 79% of physicians experiencing at least one vaccine refusal. The study highlights the need for more effective communication strategies to address these concerns and improve vaccination rates.

SourceUniversity of Colorado Anschutz Medical Campus·JournalAmerican Journal of Preventive Medicine·DateApr 18, 2011

Sugarcane cools climate

Scientists found that sugarcane has a double benefit: reducing carbon emissions and cooling the local climate. The study, published in Nature Climate Change, shows that expanding sugarcane crops in areas previously occupied by other Brazilian crops can lower air temperatures by up to 1.67°F (0.93°C).

SourceCarnegie Institution for Science·JournalNature Climate Change·DateApr 17, 2011

Ancestors of land plants revealed

New research reveals that conjugating green algae, such as Spirogyra, are the closest living relatives to land plants, contrary to the previously accepted theory. The study analyzed genetic divergence in 129 genes from 40 different green plant taxa and found significant evidence supporting this new finding.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateApr 17, 2011

L-lysine may help schizophrenia sufferers cope

A pilot study found that L-lysine reduced severity of symptoms and improved functional ability in eight out of ten patients with schizophrenia. The treatment showed a general trend for improvement due to treatment with lysine, but results were confounded by the beneficial effect of lysine continuing after treatment stopped.

SourceBMC (BioMed Central)·JournalBMC Medicine·DateApr 17, 2011

Missing the gorilla

A study by University of Utah psychologists found that individuals with lower working memory capacity are more prone to inattention blindness, missing a person in a gorilla suit walking across the screen. This suggests that people with better control over their attention may be more likely to notice unexpected events.

NIH scientists identify gene that could hold the key to muscle repair

Researchers at the National Institute of Arthritis and Musculoskeletal and Skin Diseases have identified a key player in muscle repair: the gene Ezh2. By activating this gene, satellite cells may proliferate and compensate for underlying defects, potentially increasing quality of life for individuals with degenerative diseases.

New patient guidelines for heart devices

Cardiac specialists will use new guidelines to determine who should receive a mechanical heart-pumping device. The guidelines have the potential to change clinical practice patterns for patients with severe heart failure. Dr. Morgan's presentation at the ISHLT annual meeting in San Diego highlights the importance of these changes.

Molecular messages from the antennae

Researchers at Max Planck Institute for Chemical Ecology sequenced the antennal transcriptome of the tobacco hornworm moth, revealing specific proteins involved in olfaction. The study identifies 18 odorant binding proteins and 21 chemosensory proteins, providing new insights into the insect's ability to detect and process odor molecules.

SourceMax Planck Institute for Chemical Ecology·JournalProceedings of the National Academy of Sciences·DateApr 15, 2011

Breast cancer prognosis goes high tech

Researchers at the University of Calgary developed a new digital tool using fractal dimension analysis to assess breast cancer tumours. The method provides an objective and reproducible measure of tissue abnormality and aggressiveness, promising more accurate risk assessment and therapeutic decisions.

SourceUniversity of Calgary·JournalJournal of Translational Medicine·DateApr 15, 2011

Twitter and natural disasters

The study found that Twitter users in disaster-stricken areas tended to tweet about their unsafe situation, while those in remote areas posted updates to let their followers know they were safe. The researchers also identified numerous unreliable retweets and low signal-to-noise ratio for messages using hashtags.

SourceInderscience Publishers·JournalInternational Journal of Web Based Communities·DateApr 15, 2011

Preserving a world favorite flavour

Scientists at the University of Nottingham's Malaysia campus are working on a new method to improve the commercial production of vanilla plants through tissue culture. The research aims to overcome issues with genetic instability in micropropagated sub-clones, which can lead to reduced quality and yield.

Another reason not to binge drink

A Loyola University Health System study found that binge drinking can change the body's immune system response to orthopaedic injury, complicating trauma care. This means that measuring chemical markers in the blood may be misleading when alcohol is involved.

SourceLoyola Medicine·JournalJournal of Bone and Joint Surgery·DateApr 15, 2011

SLU neurosurgeon pushes brain bypass to new heights

SLU professor of neurosurgery Saleem Abdulrauf's high-flow brain bypass procedure improves treatment outcomes by reducing invasive procedures and maintaining blood flow in the brain. The technique is built upon the original brain bypass surgery developed in the 1960s and has been recognized for its potential to minimize recovery time.

SourceSaint Louis University·JournalNeurosurgery·DateApr 15, 2011

Israeli media increase division between people

A study by Matt Evans finds that Israeli media frame information to separate secular and religious Jewish communities, using techniques such as selective reporting and emotive language. This division is not limited to Israel, with similar framing tactics observed in the US media.

SourcePenn State·JournalThe Middle East Journal·DateApr 15, 2011