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Science News Archive November 2011 - Page 28


Page 28 of 28

Structure, not scientists to blame for Los Alamos failings

The article reveals how Los Alamos' decline is linked to misguided policies and mismanagement, rather than a culture of arrogance. The lab's scientists faced harsh conditions, including polygraph tests and shutdowns, after media scrutiny of one individual's actions was misconstrued as institutional failure.

SourceSAGE·JournalBulletin of the Atomic Scientists·DateNov 1, 2011

Plant researchers locate transporter used for nicotine metabolism

Scientists at Virginia Tech and Purdue University have identified a distinct transporter, NUP1, used by tobacco plant cells for nicotine metabolism. This discovery provides new insight into the production of medicinal alkaloid compounds and could enable bioengineering of medicinal plants to produce optimal amounts.

SourceVirginia Tech·JournalProceedings of the National Academy of Sciences·DateNov 1, 2011

Potential treatment for iron overload disorders

Researchers at UCLA have developed a promising new treatment for iron overload disorders using minihepcidin peptides, which mimic the natural protein hepcidin to lower iron levels in the blood. The study provides hope for individuals affected by hereditary hemochromatosis and beta-thalassemia.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2011

Possible therapy for one form of inherited nerve dysfunction

Researchers have identified a potential oral therapy for HSAN1, an inherited nerve dysfunction characterized by progressive muscle control loss. Oral administration of L-serine reversed deoxysphingolipid accumulation and reduced neuropathy severity in mice and humans with the disease.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2011

National Academy of Sciences awards Gamedesk $225,000 grant to develop science-based interactive game for classrooms

The National Academy of Sciences has awarded a $225,000 grant to GameDesk to develop an interactive game that engages students physically and mentally in difficult science topics. The Science in Motion project aims to create educational geoscience games that support students' comprehension of cause-and-effect relationships.

Acute kidney injury in hospitalized diabetic patients linked to chronic kidney disease

A study published in Clinical Journal of the American Society of Nephrology found that hospitalized diabetic patients who experience acute kidney injury are at a higher risk of developing chronic kidney disease. The research followed 4,082 patients with diabetes over 10 years, revealing that multiple episodes of acute kidney injury inc...

SourceUniversity of Cincinnati·JournalClinical Journal of the American Society of Nephrology·DateNov 1, 2011

Bisexual men: When sexual health requires stealth

A recent study by Indiana University researchers found that bisexual men often feel uncomfortable accessing sexual health services due to fear of disclosure and stigma. A more general approach, framed as 'men's health' or 'men's sexual health,' is likely to be more effective in reaching these individuals.

Novel technique switches triple-negative breast cancer cells to hormone-receptor positive cells

Researchers found that inhibiting Notch signalling converts triple-negative breast cancer cells into hormone-receptor positive cells, making them dependent on estrogen. This technique has potential for combination therapy, where a Notch inhibitor is used to make all cancer cells hormone-sensitive.

SourceUniversity of Colorado Anschutz Medical Campus·JournalProceedings of the National Academy of Sciences·DateNov 1, 2011

Abnormal oscillation in the brain causes motor deficits in Parkinson's disease

Research at National Institute for Physiological Sciences found abnormal 'oscillatory' electrical signals in subcortical nuclei cause severe motor deficits in Parkinson's disease. Chemical inhibition of the subthalamic nucleus improved motor impairments by reducing oscillations, providing clues for new treatments.

SourceNational Institute for Physiological Sciences·JournalEuropean Journal of Neuroscience·DateNov 1, 2011

Conflicting views of a child's behavior problems from parents, teachers, and the child may be helpful to clinician

A new study explores the challenges of making sense of conflicting reports from parents, teachers, and children about a child's behavioral problems. The research reveals that clinicians can benefit from considering these discrepancies as valuable information to improve treatment outcomes.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalJournal of Child and Adolescent Psychopharmacology·DateNov 1, 2011

Ready for their close-up

Scientists have developed a technique using scanning transmission electron microscopy (STEM) to view proteins tagged with gold nanoparticles in whole, intact cells. This method offers ten times better resolution than optical microscopes and could help study cancer processes and understand how viruses hijack healthy cells.