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Science News Archive September 2011 - Page 21


Page 21 of 29

Primary component in turmeric kicks off cancer-killing mechanisms in human saliva

A pilot study using human saliva found that curcumin inhibited a critical cell signaling pathway and reduced pro-inflammatory cytokines in patients with head and neck cancers. The study suggests curcumin could be combined with other treatments to treat head and neck cancer, and may be given to high-risk patients as an adjuvant treatment.

SourceUniversity of California - Los Angeles Health Sciences·JournalClinical Cancer Research·DateSep 12, 2011

Confronting meaninglessness

A recent study investigates how individuals respond to unexpected and unsettling events, suggesting that different threat-reduction approaches can be adaptive in various situations. The researchers propose a new framework for understanding responses to such events, highlighting the importance of considering individual perspectives on t...

SourceAssociation for Psychological Science·JournalPerspectives on Psychological Science·DateSep 12, 2011

Fathers wired to provide offspring care

A new Northwestern University study confirms that human males are biologically wired to care for their offspring, showing that fatherhood significantly lowers testosterone levels. The study found that fathers who became more involved in child care experienced the largest decline in testosterone.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateSep 12, 2011

A tale of (more than) 2 butterflies

Researchers studied the genetic basis of species formation in the Appalachian tiger swallowtail butterfly, a rare hybrid of Eastern and Canadian tiger swallowtails. The study reveals that hybrid speciation can create new combinations of life history and morphological traits, allowing colonization of novel environments.

SourceU.S. National Science Foundation·JournalPLOS Genetics·DateSep 12, 2011

U.S. public may not be aware of important uncertainties about drug benefits and harms

A US study found that many Americans believe only highly effective drugs without serious side effects are approved. Brief explanations to patients about drug benefits and harms uncertainties can help them make better choices. The FDA does not guarantee a large or important benefit from a drug or that all serious adverse effects are known.

SourceJAMA Network·JournalArchives of Internal Medicine·DateSep 12, 2011

Innovating for every woman, every child

The report emphasizes the importance of self-sustaining supply-demand systems in improving health and wellbeing for marginalized women and children globally. The authors highlight democratising technologies like mobile phones as a key opportunity for local demand to be understood, appreciated, and locally solved.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 11, 2011

Dangers of exposure to 'white' light

A new international study reveals that 'white' light bulbs emit shorter wavelengths that suppress melatonin production, causing behavior disruptions and health problems. The researchers recommend limiting the use of 'white' light, adjusting lampposts to reduce light pollution, and using energy-efficient lighting.

SourceUniversity of Haifa·JournalJournal of Environmental Management·DateSep 11, 2011

Changes to distribution of livers for transplant proposed

Transplantation specialists propose changes to liver organ distribution to prioritize patients with high MELD scores and reduce waitlist mortality. The new model aims to rapidly allocate organs to those most in need, ensuring timely delivery and reducing death rates.

SourceWiley·JournalLiver Transplantation·DateSep 9, 2011

Rhythm is it

Researchers have discovered that HCN channels, essential for the heart's electrical signals, are vital for normal repolarization. A new animal model showed a significant reduction in repolarization phase duration when one subtype of HCN channel protein was missing.

SourceLudwig-Maximilians-Universität München·JournalCirculation Research·DateSep 9, 2011

Moffitt Cancer Center researchers use new tool to counter multiple myeloma drug resistance

Researchers at Moffitt Cancer Center have developed a monitoring technology that can provide a better understanding of drug resistance in multiple myeloma and assist in individualized patient treatments. The technique uses Liquid Chromatography Multiple Reaction Monitoring (LC-MRM) to quantify biomarkers of human disease.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalMolecular & Cellular Proteomics·DateSep 9, 2011

Using 61 years of tropical storm data, scientists uncover landfall threat probabilities

Researchers analyzed 61 years of tropical storm data to find correlations between hurricane tracks and climate patterns. They discovered that El Niño seasons tend to produce fewer storms, while those that do form are less likely to make landfall due to changes in atmospheric steering currents.

Taming light

Researchers achieve precise control over ultrashort light pulses, enabling the manipulation of electron motion in atoms and molecules. This breakthrough enables new tools for studying sub-atomic processes and understanding atomic interactions.