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Science News for October 22, 2009


Flu shots not to be sneezed at

A new study found that nearly half of high-risk American adults who intend to get vaccinated against seasonal flu actually do, but nearly 45% cite a perceived lack of need as the main reason for not being vaccinated. The researchers suggest that educating these individuals about the benefits of vaccination and making it more convenient...

SourceSpringer·JournalJournal of General Internal Medicine·DateOct 22, 2009

Taking medicine for HIV proves hard to swallow for many people

Two University of Washington studies show that drinking alcohol doubles the risk of non-adherence to HIV medication. A third study found that peer support, electronic pagers, or both had no lasting impact on adherence rates. The challenges of adhering to life-long HIV treatment highlight the need for individualized comprehensive programs.

SourceUniversity of Washington·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateOct 22, 2009

Now hear this

Scientists have identified a new type of cell in the inner ear that carries sound signals to the brain, responding only to extremely loud sounds. The discovery sheds light on how the human ear processes sound and may have implications for understanding hearing loss.

SourceJohns Hopkins Medicine·JournalNature·DateOct 22, 2009

Getting on 'the GABA receptor shuttle' to treat anxiety disorders

A new study published in Biological Psychiatry examined the role of GABA receptors in anxiety disorders, revealing that inserting GABA receptors into neurons in the amygdala increases inhibition and prevents fear extinction. This discovery provides evidence for molecular mechanisms behind cognitive and behavioral therapies.

SourceElsevier·JournalBiological Psychiatry·DateOct 22, 2009

Female choice benefits mothers more than offspring

Researchers found no support for theory that female choice is connected to 'good genes', suggesting females resist mating attempts primarily for their own benefit. Females with increased ability to reject males had higher fitness, while inadvertent selection for male persistence played a minor role.

SourceUppsala University·JournalCurrent Biology·DateOct 22, 2009

Quick and easy diagnosis for mitochondrial disorders

Researchers developed a molecular diagnostic tool that uses targeted genetic sequencing to screen for variations in 362 genes associated with mitochondrial disease. The new method accurately identified the mutation underlying each patient's condition, increasing sensitivity for diagnosing previously unknown genes.

SourceBMC (BioMed Central)·JournalGenome Medicine·DateOct 22, 2009

Sensing disasters from space

The HRS technology combines space sensors with ground and air measurements to provide advance warnings of natural disasters such as forest fires. It can also identify water contamination, pollution spills and monsoon strikes, offering valuable insights for property developers and authorities.

SourceAmerican Friends of Tel Aviv University·JournalSoil Science Society of America Journal·DateOct 22, 2009

Sanford Barsky, M.D., University of Nevada School of Medicine and Nevada Cancer Institute faculty member publishes scientific paper in the journal Nature

Researchers found that the tumour suppressor gene Pten plays a critical role in suppressing the development of breast tumors. The study used transgenic mouse models and showed that deletion of Pten in fibroblasts accelerates tumor growth, highlighting the importance of the tumor microenvironment in cancer development.

SourceUniversity of Nevada, Reno·JournalNature·DateOct 22, 2009

Long-term treatment with proton pump inhibitor can increase weight

A study published in World Journal of Gastroenterology found that long-term proton pump inhibitor (PPI) treatment can lead to weight gain in patients with gastroesophageal reflux disease (GERD). The research highlights the importance of lifestyle modifications, such as dietary changes and weight management, to mitigate this effect. By ...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 22, 2009

Messenger RNA with FLASH

Researchers from UNC Health Care have discovered a crucial link between the synthesis of histone messenger RNA and apoptosis, a normal biochemical response to cell damage. The study identifies FLASH protein as essential for producing histone proteins, which regulate gene expression.

SourceUniversity of North Carolina Health Care·JournalMolecular Cell·DateOct 22, 2009

New artificial enzyme safer for nature

A team of researchers from the University of Copenhagen has successfully produced an artificial enzyme that is tailor-made for any application. The new enzyme speeds up oxidizing processes using Hydrogen Peroxide and operates under humane conditions, making it a promising alternative to traditional oxidizers.

SourceUniversity of Copenhagen·JournalChemBioChem·DateOct 22, 2009