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Science News for September 25, 2014


Protecting the body from itself

Researchers have established a crucial relationship between Natural Killer T (NKT) cells and B cells in the body's natural defense mechanisms. The study found that altered lipid compositions on autoimmune B cells lead to over-activation of NKT cells, causing their depletion. Removing a specific lipid-presenting molecule from B cells re...

SourceBiomedical Sciences Institutes (BMSI)·JournalCell Reports·DateSep 25, 2014

USC researchers discover dual purpose of cancer drug in regulating expression of genes

Researchers at USC Keck Medicine have discovered a dual purpose of the cancer drug decitabine in regulating gene expression. The study found that the drug not only reactivated tumor suppressor genes but also down-regulated overexpressed oncogenes, which are responsible for cancer progression. This new mechanism may provide additional t...

Study identifies gauntlet of obstacles facing migrating pronghorn in greater Yellowstone

A study identifies dense natural gas field developments, highways, and fencing as threats to the pronghorn's migration in the Greater Yellowstone Ecosystem. The research found that migrating pronghorn avoid high-quality forage on both sides of highways with bottlenecks, highlighting the need for wildlife-friendly infrastructure.

SourceWildlife Conservation Society·JournalConservation Biology·DateSep 25, 2014

Turmeric compound boosts regeneration of brain stem cells

Researchers discovered a turmeric compound, ar-turmerone, promotes stem cell proliferation and differentiation in the brain, suggesting its potential as a future drug candidate for treating stroke and Alzheimer's disease. The study found that ar-turmerone increased neural stem cell proliferation by up to 80% without affecting cell death.

SourceBMC (BioMed Central)·JournalStem Cell Research & Therapy·DateSep 25, 2014

Not all Hispanics are the same when it comes to drinking

A Michigan State University study finds that annual incidence rates of alcohol use disorders vary significantly among different Hispanic subgroups, including Mexican-Americans, Puerto Ricans, and Cuban-Americans. The research highlights the importance of developing culturally specific preventive measures to address these disparities.

SourceMichigan State University·JournalAlcohol and Alcoholism·DateSep 25, 2014

How the brain gains control over Tourette syndrome

A study published in Current Biology found that individuals with Tourette syndrome have elevated concentrations of GABA in a specific brain region, which may lead to improved motor control. This increase in GABA levels could provide new targets for non-drug therapies, such as brain stimulation, to help manage symptoms.

SourceCell Press·JournalCurrent Biology·DateSep 25, 2014

Putting the squeeze on quantum information

Researchers at CIFAR have developed a method to compress quantum information into fewer qubits while preserving its content. This breakthrough has significant implications for efficient quantum computing and communication.

SourceCIFAR·JournalPhysical Review Letters·DateSep 25, 2014

Experts at LSTM use modelling approach to assess the effectiveness TB diagnostics

Experts at LSTM used a novel modelling approach to project the effects of new diagnostic methods and algorithms for TB in Tanzania. The integrated model compared the costs and effectiveness of different diagnostic options, identifying Xpert MTB/RIF as a cost-effective option with the potential to reduce the national burden of TB.

SourceLiverpool School of Tropical Medicine·JournalThe Lancet Global Health·DateSep 25, 2014

After watching disturbing video, CPAP usage soars

A pilot study using emotional videos has led to a significant increase in CPAP machine usage among patients with sleep apnea, with some users reporting up to 2 hours of additional therapy per night. The approach, which uses personalized videos to create a sense of urgency, resulted in sustained improvement after three months.