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Science News Archive February 2013 - Page 22


Page 22 of 28

Clot-retrieval devices failed to improve stroke-related disability

A randomized controlled trial involving 656 patients found that intra-arterial device-based approach plus standard drug therapy did not improve functional independence after 90 days. Intra-arterial therapy was more effective at removing clots and re-establishing blood flow, but it did not lead to improved disability.

SourceNIH/National Institute of Neurological Disorders and Stroke·JournalNew England Journal of Medicine·DateFeb 7, 2013

Lancet Oncology: Long-term side-effects of targeted therapies in pediatric cancer patients

Researchers warn that molecularly targeted therapies may stunt growth, delay puberty, or increase the risk of diabetes in children. The lack of long-term data on these treatments raises concerns about their use in pediatric patients. Experts recommend using these drugs only in clinical trials to monitor side effects.

SourceUniversity of Colorado Anschutz Medical Campus·JournalThe Lancet Oncology·DateFeb 7, 2013

Researchers explore quantum entanglement

Researchers have shown that performing an action on one particle can immediately affect another, even if they are separated by vast distances. This has implications for secure communication methods, as entangled photons could enable fast and private data transfer.

SourceUniversity of Calgary·JournalPhysical Review Letters·DateFeb 7, 2013

Stress at work very unlikely to cause cancer

A meta-analysis of 12 studies involving 116,000 participants found no evidence of an association between job strain and overall cancer risk. Stress can cause chronic inflammation, leading to unhealthy behaviors such as smoking and excessive alcohol consumption.

SourceBMJ Group·JournalThe BMJ·DateFeb 7, 2013

In the brain, broken down 'motors' cause anxiety

Researchers find that broken molecular motors cause stress and anxiety in mice, potentially leading to new anti-anxiety drug candidates. The discovery highlights the critical role of these motors in transporting serotonin receptors, which regulate mood and behavior.

SourceCell Press·JournalCell Reports·DateFeb 7, 2013

Social network use reflects East-West disparity

A new study by Michigan State University found that US citizens spend nearly twice as much time on social networking sites (52 minutes/day) compared to Chinese participants (28 minutes/day). In contrast, Chinese participants rarely use these sites, with only 4% of them using them regularly.

SourceMichigan State University·JournalComputers in Human Behavior·DateFeb 7, 2013

By their powers combined

Researchers have developed new methods for controlling magnetic order in magnetoelectric materials using electrical signals, potentially leading to faster and more efficient memories. This breakthrough could also enable the creation of non-binary memories and improved magnetic field sensors.

SourceDOE/Argonne National Laboratory·JournalNature Communications·DateFeb 7, 2013

Health costs of income inequality in marriage, jealousy and parenting, humor and conflict

A new study finds that men whose wives earn more income are more likely to use erectile dysfunction medication, while wives who outearn their husbands suffer from insomnia. Humor can also be a double-edged sword in relationships, with some types of humor helping to diffuse tense conflicts and others eliciting negative responses.

SourceSociety for Personality and Social Psychology·JournalPersonality and Social Psychology Bulletin·DateFeb 7, 2013

Dickkopf makes fountain of youth in the brain run dry

A team of scientists from the German Cancer Research Center has discovered that silencing Dickkopf-1, a signaling molecule that promotes age-related cognitive decline, leads to increased neurogenesis in the hippocampus. This results in improved spatial orientation and memory performance in mice, even in advanced adult age.

SourceHelmholtz Association·JournalCell Stem Cell·DateFeb 7, 2013

A privacy risk in your DNA

Researchers developed an algorithm that can identify last names using Y chromosome data, compromising individual privacy. The study highlights the risk of revealing personal information through genetic data, calling for better encryption techniques and legislation to protect participants' identities.