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Science News Archive 2006 - Page 59


Page 59 of 178

Recent study confirms warning signs of painkiller abuse

A recent study by Robert J. Gatchel confirmed that patients scoring high on the Pain Medication Questionnaire (PMQ) test demonstrate higher levels of substance abuse, psychopathology, and physical/life functioning problems. The study found that patients in the high-PMQ group are 3.2 times more likely to request early medication refills.

SourceBlackwell Publishing Ltd.·JournalPain Practice·DateSep 6, 2006

Epilepsy medication proving ineffective over time

A critical review found that repeated administration of antiepileptic drug therapy leads to diminishing results in preventing seizures. Acquired tolerance is responsible for this effect, with some patients developing cross-tolerance to similar medication, posing a significant concern for medically intractable epilepsy

SourceBlackwell Publishing Ltd.·JournalEpilepsia·DateSep 6, 2006

Untangling a pathology of Alzheimer's

Researchers have identified an enzyme called puromycin-sensitive aminopeptidase (PSA) that snips apart abnormal protein tangles in the brain, potentially providing a protective mechanism against neurodegeneration. Higher levels of PSA gene expression were found in cerebellum regions resistant to neurodegeneration.

SourceCell Press·JournalNeuron·DateSep 6, 2006

How did our ancestors' minds really work?

The study reveals that 1- and 3-year-old children, as well as great apes, prefer a place-based strategy to remember hidden items, while humans reassess this preference with age. This suggests that some evolved cognitive strategies are masked early on in human development.

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateSep 6, 2006

Fishing trade helps Africa

New research suggests that international fishing trade can benefit developing African countries by generating foreign exchange revenue and improving local food security. The trade in high-value fish species, such as tuna and squid, helps underpin domestic fisheries and supports the livelihoods of thousands of people.

State health department Web sites inaccessible to many, study finds

A new study found that state health department websites are often written at a level too difficult for the average American, with only 20% of sites at an eighth-grade reading level in 2005. Many websites also lack accessibility features for people with disabilities and non-English speakers, making it hard for them to access essential i...

SourceBrown University·JournalJournal of Health Care for the Poor and Underserved·DateSep 6, 2006

Mount Sinai researcher finds drinking water safe to drink

A study published in the American Journal of Epidemiology found no increased risk of pregnancy loss related to drinking water disinfection by-products. The research, led by David A. Savitz, Ph.D., used data from 2,409 women and 258 pregnancy losses, concluding that tap water DBPs do not pose a measurable risk to fetal health.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalAmerican Journal of Epidemiology·DateSep 6, 2006

CSIRO signs international coal research agreement in Japan

The CSIRO has signed a three-way coal research and development Joint Statement with Japan Coal Energy Centre (JCOAL) and Australian Coal Research Ltd (ACARP). The agreement aims to improve coal production technology, mine safety and coal utilization. This collaboration will enhance the capabilities of both countries in these areas.

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

A study published by Infectious Diseases Society of America found that antibiotic-resistant bacteria are causing an increase in muscle infections, particularly among children. The researchers discovered a specific strain of Staphylococcus aureus associated with more severe disease, and emphasized the need for physicians to consider ini...

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateSep 6, 2006

Thirty percent of nurses report both verbal and physical abuse in the last four working weeks

A recent study found that 30% of nurses reported both verbal and physical abuse in the last four working weeks. The most common forms of physical abuse were strikes from hands or fists, while verbal abuse was mostly rudeness and shouting. The research highlights a disturbing trend of workplace aggression in modern healthcare settings.

SourceBlackwell Publishing Ltd.·JournalJournal of Advanced Nursing·DateSep 6, 2006

Harvard University engineers demonstrate laser nanoantenna

Researchers at Harvard University have developed a new photonic device that uses an optical antenna to concentrate light and improve spatial resolution, leading to increased storage density in optical data storage platforms. The device could also be used in biology and engineering applications such as microscopy and spectroscopy.

SourceHarvard University·JournalApplied Physics Letters·DateSep 6, 2006

Researchers create mouse lacking key inflammation gene

Scientists from Boston University created a mouse model with reduced inflammation, which may lead to new treatments for conditions like arthritis and Crohn's disease. The study found that the LITAF transcription factor controls inflammation through a different pathway than the NF-kB regulator.

SourceBoston University·JournalProceedings of the National Academy of Sciences·DateSep 6, 2006

Journal Management Science introduces new 'Management Insights,' digest of leading new research

Management Science has introduced a monthly feature called Management Insights, which provides a digest of important research in business and management. The September issue features studies on airline safety, entrepreneurial risk, and market valuation, offering practical insights for practicing managers.

Other highlights in the September 6 JNCI

A 55-gene expression profile identifies children at high risk of progressive metastatic neuroblastoma. Lay health advisors improve mammography use among low-income women. Cyclin D1 inhibits STAT3, slowing breast cancer tumor growth. Researchers identify CD95/CD95L as a molecular system involved in radiation-induced pneumonitis.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateSep 5, 2006

MRI on the cheap and on the go

Researchers at Lawrence Berkeley National Laboratory have developed a novel laser-based MRI technique that offers enhanced sensitivity and time resolution. The approach uses atomic magnetometry and separates signal encoding and detection steps, enabling optimized sensitivity and reducing costs.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateSep 5, 2006

Pine tree bark reduces diabetic leg ulcers

A study found that Pycnogenol heals diabetic leg ulcers by improving blood circulation and reducing tissue necrotization. Patients treated with oral and local Pycnogenol experienced a significant decrease in ulcer size and had higher oxygen presence in the skin.

SourceMWW Group·JournalClinical and Applied Thrombosis/Hemostasis·DateSep 5, 2006

Overweight in early childhood increases chances for obesity at age 12

Children who were overweight as toddlers are 5 times more likely to be overweight at age 12. BMI measurements collected over an extended period show a strong correlation between childhood and adolescent obesity. The study suggests that early intervention is crucial in preventing the progression of abnormal weight gain.

ACTOS reduces stroke by almost 50 percent

New analyses of the PROactive Study found that ACTOS (pioglitazone HCl) significantly reduced the risk of recurrent stroke in high-risk patients with type 2 diabetes, with a 47% reduction in incidence and a 28% decrease in combined risk of death, MI, or stroke.

Empty nesters can't let go

Researchers at the University of Cambridge discovered that African pied babbler adults continue to care for their young after they stop feeding directly. The parents call the inexperienced fledglings to areas with readily available food, improving their foraging success rate.

SourceUniversity of Cambridge·JournalCurrent Biology·DateSep 5, 2006

Researchers identify neurons that assign value during learning

Researchers used a genetic tool to activate specific neurons in fruit flies, revealing that two subsets of neurons are responsible for assigning positive or negative values to stimuli. This discovery advances our understanding of how animals learn to associate cues with experiences and has implications for more complex mammalian brains.

SourceCell Press·JournalCurrent Biology·DateSep 5, 2006