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Science News Archive February 2012 - Page 27


Page 27 of 30

Making sense of addiction terminology

A new editorial aims to clarify drug and alcohol addiction terminology by defining current treatments' modes of action and targets. The authors suggest that a better understanding of these elements would aid in the development of more effective treatments, particularly for opioid and tobacco addictions.

SourceSAGE·JournalJournal of Psychopharmacology·DateFeb 3, 2012

Regular use of vitamin and mineral supplements could reduce the risk of colon cancer

Researchers found that rats given daily multivitamin and mineral supplements showed an 84% reduction in pre-cancerous lesions and did not develop tumors when exposed to carcinogens. The study suggests that regular supplement use could help protect against colon cancer, giving cancer patients valuable guidance.

SourceCanadian Science Publishing·JournalCanadian Journal of Physiology and Pharmacology·DateFeb 3, 2012

Bouquet bargains

A recent study by researchers at NESCent found that larger plant size can lead to bigger, more plentiful blooms, but accounting for overall size differences is crucial in detecting tradeoffs. The study tested three hypotheses and concluded that flower size-number tradeoffs are harder to spot due to various reasons.

SourceNational Evolutionary Synthesis Center (NESCent)·JournalInternational Journal of Plant Sciences·DateFeb 2, 2012

Malaria kills nearly twice as many people than previously thought, but deaths declining rapidly

New research from the Institute for Health Metrics and Evaluation reveals that more than 1.2 million people died from malaria worldwide in 2010, with 42% of those deaths occurring in older children and adults. The study found that anti-malaria drugs and insecticide-treated bed nets have driven a rapid decline in mortality rates.

Potential new treatment identified for leishmaniasis

A team of researchers at the University of Dundee has identified fexinidazole as a possible new treatment for visceral leishmaniasis, a disease affecting 500,000 people in Africa, Asia, and Latin America. The drug showed a greater than 98% rate of suppressing infection in mice, comparable to current treatments.

SourceUniversity of Dundee·JournalScience Translational Medicine·DateFeb 2, 2012

Plant power: The ultimate way to 'go green'?

Researchers are tapping into photosynthesis to efficiently produce highly valuable products, including biofuels and pharmaceuticals. This innovative approach could lead to a more sustainable future by utilizing sunlight as a renewable energy source.

SourceCell Press·JournalTrends in Plant Science·DateFeb 2, 2012

Rearranging the cell's skeleton

Cell biologists have identified key steps in how small molecules alter a cell's skeletal shape and drive cell movement. By manipulating the cell membrane, researchers created ruffles that helped pull cells across surfaces, a process previously difficult to recreate.

SourceJohns Hopkins Medicine·JournalScience Signaling·DateFeb 2, 2012

The discovery of deceleration

Millisecond pulsars lose half of their rotational energy during mass-transfer process, explaining apparent age paradox and absence of sub-millisecond radio pulsars. This result is in agreement with current observations and helps resolve the 'turn-off' problem in stellar astrophysics.

SourceMax-Planck-Gesellschaft·JournalScience·DateFeb 2, 2012

Study flags over-reliance on computer tests in return-to-plan decisions after concussion

Researchers caution against relying solely on computerized neuropsychological tests (CNT) to determine when athletes can safely return to play after a concussion. The tests may not accurately measure an athlete's brain function and could lead to premature return, posing risks such as chronic traumatic encephalopathy and death.

SourceIndiana University·JournalJournal of Clinical and Experimental Neuropsychology·DateFeb 2, 2012

Intermittent exercise improves blood glucose control for diabetics

A recent study published in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that intermittent exercise with low oxygen concentrations significantly improves glycemic control in patients with type 2 diabetes. Exercise under hypoxic conditions provides greater improvements than intermittent exercise alone.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 2, 2012

Lecture or listen: When patients waver on meds

A new analysis of hundreds of doctor-patient visits found that physicians and nurse practitioners frequently use lecturing and ordering instead of engaging in open-ended discussions to address medication non-adherence. Problem-solving conversations were rare, even among patients who acknowledged lapses in adherence.

SourceBrown University·JournalAIDS and Behavior·DateFeb 2, 2012

Identical twins reveal mechanisms behind aging

A study led by Uppsala University reveals that structural modifications of DNA are duplicated or lost more commonly in older individuals. This may explain the impaired immune system with age. The researchers found large rearrangements in blood cells of people over 60, as well as smaller changes in younger individuals.

SourceUppsala University·JournalAmerican Journal of Human Genetics·DateFeb 2, 2012