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Science News for September 3, 2013


The 'weakest link' in the aging proteome

A study published in Cell identifies a subset of proteins in the brain that persist for longer than a year, potentially revealing the molecular basis of aging. These long-lived proteins are thought to be the 'weakest link' in the aging proteome and may play a role in cellular aging.

SourceSalk Institute·JournalCell·DateSep 3, 2013

JCI early table of contents for Sept. 3, 2013

Researchers have identified a potential new target for breast cancer treatment: ERBB3, an oncogene that promotes tumor growth. The study also found peritoneal dialysis to be effective in reducing brain damage after stroke by lowering glutamate levels.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 3, 2013

Birds choose sweet-smelling mates

A Michigan State University study demonstrates that birds communicate via scents and that odor reliably predicts reproductive success. Researchers found that males with a 'male-like' smell and females with a 'female-like' smell had higher genetic reproductive success, influencing mate selection.

SourceMichigan State University·JournalAnimal Behaviour·DateSep 3, 2013

An easier way to control genes

Researchers developed a new method to control genes by targeting transcription, allowing for positive and negative regulation with the same protein. The technique has the potential to enable complex synthetic biology circuits and applications such as disease detection and drug production.

SourceMassachusetts Institute of Technology·JournalACS Synthetic Biology·DateSep 3, 2013

Tattoos reduce chances of getting a job, new research says

Employers view visible tattoos as a stigma, perceiving them as making employees look dirty or unsavory. However, certain innocuous symbols like flowers or butterflies are seen as acceptable. The stigma surrounding tattoos is expected to decrease over time as younger generations increasingly get tattoos.

SourceSAGE·DateSep 3, 2013

Young people at higher risk for stroke

A recent report by the American Academy of Neurology highlights a significant increase in strokes among adolescents and young adults, with approximately 532,000 cases occurring between ages 18-44 in the US. The study emphasizes the need for greater awareness and research into reducing the economic burden of strokes on this age group.

SourceLoyola Medicine·JournalNeurology·DateSep 3, 2013

Buildings of the future

Concordia University has received a $2 million funding to develop new techniques for reducing building energy consumption. Researchers will test smart features, solar panels, and heat-storage technologies to make buildings more efficient and sustainable.

ACL injuries may be prevented by different landing strategy

A new study published in the Journal of Athletic Training found that women who land stiffly or in a 'knock-kneed' position are at higher risk of ACL injuries. The researchers used motion analysis software to monitor landing strategies of 82 physically active men and women, revealing a significant gender disparity in ACL tear rates.

SourceOregon State University·JournalJournal of Athletic Training·DateSep 3, 2013

Clay key to high-temperature supercapacitors

Researchers at Rice University have created a supercapacitor that operates reliably at temperatures of up to 200 degrees Celsius, overcoming key limitations of conventional energy storage devices. The device uses a clay-based membrane electrolyte, which provides high thermal stability and conductivity.

SourceRice University·JournalScientific Reports·DateSep 3, 2013

Association between hormone replacement therapy use and breast cancer risk varies

A new study found that hormone replacement therapy (HRT) use is associated with an increased risk of breast cancer among postmenopausal women, but the relationship varies depending on factors such as race/ethnicity, body mass index (BMI), and breast density. The study suggests that HRT may be used for some women without increasing thei...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateSep 3, 2013

Atom-based analogues to electronic devices

Scientists have developed an atom-based analogue for electronic devices using ultra-cold bosonic atoms and quantum dots. The transport of single particles through the chain of quantum dots enables current production in systems with reduced dimensionality.

SourceSpringer·JournalThe European Physical Journal B·DateSep 3, 2013

Life without insulin is possible

Scientists identified mechanisms necessary to live without insulin, a breakthrough that could lead to alternative treatments against diabetes. Researchers found leptin regulates glucose levels and reduces the risk of hypoglycemia, offering hope for patients.

SourceUniversité de Genève·JournalCell Metabolism·DateSep 3, 2013

Aging really is 'in your head'

Researchers have identified a mechanism by which Sirt1 promotes neural activity in the brain, leading to significant delays in aging and increases in longevity. The study found that mice with increased Sirt1 expression in their brains exhibited dramatic physical changes, including improved muscle structure and vigor.

SourceWashU Medicine·JournalCell Metabolism·DateSep 3, 2013

Creating a 'window' to the brain

UC Riverside researchers have created a novel transparent skull implant made of yttria-stabilized zirconia, allowing doctors to aim laser-based treatments without repeated craniectomies. This technology has strong potential for positive impact on patients with life-threatening neurological disorders.

SourceUniversity of California - Riverside·JournalNanomedicine·DateSep 3, 2013

Scientists, practitioners, religious communities urge collaborative action to save our planet

This special issue of Frontiers in Ecology and the Environment brings together diverse perspectives on addressing global environmental challenges. The issue highlights socio-ecological drivers of environmental injustice, explores ways to encourage behavioral change, and emphasizes the role of religion in promoting Earth Stewardship.

SourceEcological Society of America·JournalFrontiers in Ecology and the Environment·DateSep 3, 2013

Body weight influences both the physical and mental quality of life

A study by Helmholtz Munich found that increased body weight deteriorates physical health, but improves mental well-being in women. The researchers analyzed data from over 3000 people, revealing the complex relationship between body weight and overall health.

Hormone may help fight obesity and reduce cholesterol

A variant of FGF21, LY2405319, has been shown to improve metabolism in obese humans with type 2 diabetes by reducing LDL cholesterol and triglycerides while increasing HDL cholesterol levels. The hormone also reduced body weight and fasting insulin, and increased adiponectin.

SourceCell Press·JournalCell Metabolism·DateSep 3, 2013