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Science News for August 15, 2012


New nanoparticles shrink tumors in mice

MIT researchers have developed RNA-delivering nanoparticles that allow for rapid screening of new drug targets in mice. These nanoparticles target the ID4 protein, shrinking ovarian tumors in their first mouse study. The technology has the potential to relieve a significant bottleneck in cancer-drug development.

SourceMassachusetts Institute of Technology·JournalScience Translational Medicine·DateAug 15, 2012

Spiteful behavior is 'extreme', according to study

Research reveals that individuals who exhibit spiteful behavior are consistent in their actions over time, imposing maximum harm on others. The study, conducted by Erik Kimbrough and Philipp Reiss, used an artificial auction market scenario to test the frequency and extent of spiteful behavior among 48 student participants.

SourcePLOS·JournalPLOS ONE·DateAug 15, 2012

Good vibrations

Scientists at Berkeley Lab and UC Berkeley have made the first direct observations of distinctly quantum optical effects - amplification and squeezing - in an optomechanical system. The findings point toward low-power quantum optical devices and enhanced detection of gravitational waves.

Danger in the blood: U-M scientists show how antibiotic-resisting bacterial infections may form

Researchers demonstrate that bacteria can form antibiotic-resistant clumps in a short time, even in a flowing liquid such as the blood, leading to severe infections. These clumps persist even when two different types of antibiotics are added, suggesting that sticking together protects the floating bacteria from the drugs' effects.

SourceMichigan Medicine - University of Michigan·JournalThe Journal of Infectious Diseases·DateAug 15, 2012

By studying animal health, researchers find improved ways for developing, testing cancer therapies

Kansas State University researchers have made significant discoveries in cancer research by studying animal health. They found SCID pigs with severe combined immunodeficiency and discovered the connection between human cancer and pig diseases. This collaboration has huge potential for improving surgeries, drug development, and bone mar...

SourceKansas State University·JournalBioResearch Open Access·DateAug 15, 2012

NIH study suggests potential hurdle to universal flu vaccine development may be overcome

Researchers found that a prime-boost vaccine regimen can elicit broadly neutralizing antibodies in animals with pre-existing immunity, offering hope for developing vaccines giving long-lasting flu protection. The study's results suggest that a universal flu vaccine may be possible, potentially benefiting people of all ages.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience Translational Medicine·DateAug 15, 2012

Be whoever you want to be!

Researchers from Ruhr-Universität Bochum discovered that 80 percent of Single Sign-On (SSO) systems based on SAML have huge vulnerabilities. The team used novel XML Signature Wrapping techniques to circumvent digital signatures, impersonating users and system administrators in 12 affected systems.

MASER power comes out of the cold

Researchers have developed a solid-state MASER capable of operating at room temperature, eliminating the need for extreme conditions. This breakthrough has significant implications for various fields, including medicine, where it could be used to create more sensitive medical instruments.

SourceNational Physical Laboratory·JournalNature·DateAug 15, 2012

Continuous oral contraceptive pills offer women earlier pain relief

Researchers found that continuous oral contraceptive pills provide earlier relief for moderate to severe menstrual cramps, reducing symptoms by up to six months. Women taking the continuous treatment reported significant pain relief due to uninterrupted treatment, outperforming cyclic treatment in terms of pain relief timing.

SourcePenn State·JournalObstetrics and Gynecology·DateAug 15, 2012

Novel technique demonstrates interactions between malaria parasite and HIV

A new video article in JoVE presents a novel technique to study interactions between HIV-1 and Plasmodium falciparum in cultured human cells. This method allows scientists to explore different parameters of co-infection, enabling better understanding of the cellular level interactions between these two deadly diseases.

SourceThe Journal of Visualized Experiments·JournalJournal of Visualized Experiments·DateAug 15, 2012

University of Maryland researchers identify gut bacteria linked to obesity and metabolic syndrome

University of Maryland researchers have identified 26 species of gut bacteria that appear to be linked to obesity and related metabolic complications, including insulin resistance, high blood pressure, and high cholesterol. The study found that these bacteria are present in all individuals, regardless of BMI or metabolic syndrome traits.

Babies may not have a 'moral compass' after all

Recent studies from New Zealand's University of Otago challenge the idea that infants as young as six months possess an innate moral compass, instead suggesting their preferences may be driven by interesting events. Researchers found that infants' choices could be explained by simple associations with specific visual stimuli.

SourceUniversity of Otago·JournalPLOS ONE·DateAug 15, 2012

Noise down, neuron signals up

A new biologically accurate model of background noise in the nervous system has been developed to explain how noise induces delays in neuron responses. The researchers found that modulating two factors can help neurons encode information more accurately.

SourceSpringer·JournalThe European Physical Journal B·DateAug 15, 2012

Team uncovers link between hormone levels and risk for metabolic disease

A team of researchers has shown a link between low levels of adropin, a hormone that regulates glucose and fatty acid metabolism, and increased risk of metabolic diseases such as type 2 diabetes. The study found that low adropin levels were associated with obesity, insulin resistance, and other metabolic syndrome risk factors.

SourceScripps Research Institute·JournalThe Journal of Clinical Endocrinology & Metabolism·DateAug 15, 2012

PLoS ONE launches Synthetic Biology Collection

The PLoS ONE Synthetic Biology Collection assembles articles on various facets of synthetic biology, a dynamically evolving research area that interconnects multiple disciplines. The collection aims to inspire further progress in the field by providing a dedicated repository for researchers.

SourcePLOS·JournalPLOS ONE·DateAug 15, 2012

Even minor physical activity may benefit bone health in premenopausal women

A new study published in the Journal of Clinical Endocrinology and Metabolism found that even minor physical activity can benefit bone health in premenopausal women by reducing sclerostin and enhancing IGF-1 levels. The study involved 1,235 premenopausal women who were followed for eight weeks, with those engaging in more than two hour...

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateAug 15, 2012