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Science News Archive May 2016 - Page 38


Page 38 of 38

Froggie went a courtin' and waved goodbye to rival wooers

A new study from Wake Forest University found that testosterone influences the evolution of a waving display in male Bornean rock frogs. The research revealed that testosterone increases foot-flagging behavior and changes how hormones act on leg muscles, similar to the change seen in vocal croaks.

SourceWake Forest University·JournalProceedings of the National Academy of Sciences·DateMay 2, 2016

Does freeze-thawing and IV delivery affect the therapeutic potential of mesenchymal stromal cells?

A study found that freeze-thawing and intravenous infusion affect mesenchymal stromal cell gene expression, which may impact their therapeutic use in reducing inflammatory responses. The lung microenvironment also influences MSC gene expression, highlighting the need for careful characterization.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalStem Cells and Development·DateMay 2, 2016

Study shows long-term improvement in health-related quality of life after bariatric surgery

A long-term follow-up study found significant improvement in health-related quality of life after bariatric surgery for patients with BPD-DS. The study evaluated 27 patients who underwent the procedure and compared their outcomes to pre-surgery scores and those from the general population.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalBariatric Surgical Practice and Patient Care·DateMay 2, 2016

Health interventions needed for SGL parent households in urban subsidized housing programs

Single parents living in urban low-income neighborhoods with high levels of community violence experience significant symptoms of stress and depression, affecting their children's emotional health. Research emphasizes the need for further study and programmatic interventions supporting the overall health of housing unstable families.

SourceUniversity of Pennsylvania School of Nursing·JournalHealth & Social Care in the Community·DateMay 2, 2016

Little ANTs: Researchers build the world's tiniest engine

Developed by University of Cambridge researchers, the nanoscale engine harnesses light energy to generate elastic forces, making it suitable for water navigation and disease-fighting applications. With immense force capabilities and bio-compatibility, these 'ANTs' could revolutionize nano-machinery and microfluidics industries.

SourceUniversity of Cambridge·JournalProceedings of the National Academy of Sciences·DateMay 2, 2016

Adult brain prunes branched connections of new neurons

A recent study tracked developing cells in an adult mouse brain, finding that the brain prunes back excess dendrite branches to achieve optimal design. This pruning process may hold implications for understanding neurological disorders such as autism, intellectual disabilities, and schizophrenia.

SourceSalk Institute·JournalNature Neuroscience·DateMay 2, 2016

How much does groundwater contribute to sea level rise?

A new study published in Nature Climate Change reveals that groundwater extraction contributes about three times less to sea level rise than previously estimated, with an accurate figure of around 80%. This revised estimate suggests that other processes may be contributing more water to sea level rise, widening the gap between modeled ...

SourceInternational Institute for Applied Systems Analysis·JournalNature Climate Change·DateMay 2, 2016

A climate warming warning

A new study links climate warming to increased algal growth in the Athabasca oilsands region of northern Alberta. Researchers found a stronger link between warmer air temperatures and algal production, rather than industrial nutrient fertilization.

SourceQueen's University·JournalPLOS ONE·DateMay 2, 2016

Penn-coordinated study confirms long-term benefit of anti-VEGF therapy for age-related macular degeneration

A Penn-coordinated study confirms that half of patients with age-related macular degeneration retain 20/40 vision or better after five years of treatment with Avastin or Lucentis. The study also found signs of modestly worsening disease, but overall, the therapy has shown significant benefits in slowing vision loss.

Literature on cycads continues to accumulate

A study by April Cascasan and Thomas Marler reveals that cycad biologists have limited access to crucial information due to inadequate keyword use in historical publications. The authors suggest incorporating keywords like 'cycad' into article titles or index lists to improve discoverability.

SourceUniversity of Guam·JournalJournal of Threatened Taxa·DateMay 2, 2016

Demographic changes increase the risk of natural fires

A study by Lund University finds that demographic changes, such as population growth and urbanization, pose a greater threat to natural fires than climate change, increasing the risk of fires in certain regions. The research suggests that areas with no human population are more prone to uncontrolled fires due to lack of urban planning.

SourceLund University·JournalNature Climate Change·DateMay 2, 2016

New study found ocean acidification may be impacting coral reefs in the Florida keys

A new study by University of Miami researchers found that ocean acidification is dissolving limestone on coral reefs in the upper Florida Keys at an alarming rate. The annual loss of reef poses a significant threat to the ecosystem's health and the estimated $7.6 billion asset value of these reefs.

May Health Affairs: Value of cancer drugs in 9 countries

A study by Sebastian Salas-Vega and Elias Mossialos found a wide variation in the value of cancer drugs across 9 countries, with the US spending more than others but witnessing one of the smallest improvements in cancer-related mortality. The authors calculated a $32.6 billion net positive return from cancer drug care in the US in 2014.

SourceHealth Affairs·JournalHealth Affairs·DateMay 2, 2016

The social lives of the elderly mirror how they grow older

Researchers found that smaller, more interconnected social networks are associated with early signs of cognitive decline. Participants with mild cognitive impairment or dementia had a higher proportion of relatives in their networks and less socialization with friends and neighbors.

SourceSpringer·JournalJournal of General Internal Medicine·DateMay 2, 2016

Nuclear pores captured on film

For the first time, researchers have filmed 'living' nuclear pore complexes in action using an ultra-fast atomic force microscope. The study reveals the dynamic behavior of molecular 'tentacles' inside the pore, which regulate the transport of molecules into and out of the cell nucleus.

SourceUniversity of Basel·JournalNature Nanotechnology·DateMay 2, 2016

Radiotherapy more effective than chemotherapy for early stage II testicular cancer

A large study of 2,437 patients with stage II testicular seminoma found that radiation therapy was associated with better outcomes compared to chemotherapy, particularly in stage IIa disease. The study's findings support the recommendation for radiotherapy as the preferred treatment option for early-stage II testicular cancer.

Growing threat of noncommunicable diseases to survival in pregnancy and childbirth

A study in Mexico reveals that noncommunicable diseases, such as type 2 diabetes and hypertension, are a growing threat to maternal survival. The reclassification of 1214 deaths identified 13% more maternal deaths than previously thought, with indirect causes accounting for 12.2 deaths per 100,000 live births.

SourceBulletin of the World Health Organization·JournalBulletin of the World Health Organization·DateMay 1, 2016