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Science News Archive 2009 - Page 86


Page 86 of 277

Mandatory alcohol testing for truck and bus drivers reduces alcohol involvement in fatal crashes

A study of nearly 70,000 motor carrier drivers and over 83,000 non-motor-carrier drivers found that mandatory alcohol testing programs reduced alcohol involvement in fatal crashes by 23%. The study's findings suggest that implementation of such programs can improve safety records in the US and other countries.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Epidemiology·DateSep 11, 2009

When proteins change partners

The study reveals that Fbox proteins alternate between attaching to and being kicked off CRL1 by competing protein CAND1. This process is stabilized by the phosphorylated substrate N8, allowing for efficient degradation of aberrant proteins. The research highlights the importance of the proline residue in Fbox protein-CRL1 interaction.

SourceSanford Burnham Prebys·JournalMolecular Cell·DateSep 11, 2009

Muscle: 'Hard to build, easy to lose' as you age

Research by the University of Nottingham found that older people's muscles are less responsive to insulin, leading to increased muscle breakdown. Weight training has been shown to improve blood flow and potentially mitigate this effect. This blunting of muscle response may contribute to age-related muscle loss.

SourceUniversity of Nottingham·JournalAmerican Journal of Clinical Nutrition·DateSep 11, 2009

Half of eligible patients not getting mitral valve surgery, U-M study shows

A recent study by the University of Michigan Cardiovascular Center found that only half of eligible patients with moderate to severe mitral regurgitation underwent surgery, despite meeting at least one indication for treatment. The study suggests that cardiologists may overestimate surgical risks and underestimate potential benefits.

SourceMichigan Medicine - University of Michigan·JournalJournal of the American College of Cardiology·DateSep 11, 2009

Groups are key to good health

Research by the Universities of Exeter and Queensland shows that membership of social groups has a positive impact on health and well-being. Studies have found that people who maintain valued group memberships recover more positively after a stroke, are happier in care homes, and experience improved mental health.

Oil and wildlife don't mix in Ecuador's Eden

A study by WCS field scientists found that a single road in the park can change how indigenous communities use their resources, leading to commercial hunting and wildlife depletion. The researchers recorded over 11,000 kilograms of wild meat moving through markets between 2005-2007, with prices increasing by up to 60%.

SourceWildlife Conservation Society·JournalAnimal Conservation·DateSep 10, 2009

Engineered pea seeds protect against parasites

Researchers have developed genetically modified pea seeds that produce antibodies against coccidiosis, reducing treatment costs and making it easier to use in commercial settings. The study found that chickens fed these antibody-containing pea seeds were significantly less likely to contract the disease.

SourceBMC (BioMed Central)·JournalBMC Biotechnology·DateSep 10, 2009

Ketamine reduces suicidality in depressed patients

In a preliminary study, intravenous ketamine was found to acutely reduce suicidal thoughts in treatment-resistant depression patients. The reduction in suicidality was maintained when patients received repeated doses over two weeks, suggesting potential as an attractive treatment option for high-risk suicidal patients.

SourceElsevier·JournalBiological Psychiatry·DateSep 10, 2009

Globally, 2 in 5 adolescent deaths are due to injuries and violence, and death rates much lower in high-income countries

The study reveals that nearly two-thirds of adolescent deaths in sub-Saharan Africa and Southeast Asia occurred, despite these regions containing only 42% of the global 10—24-year-old population. Traffic accidents and violence were among the leading causes of death, with more than half of all deaths due to injuries or violence.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 10, 2009

Children with fatter midsections at increased risk for cardiovascular disease

Researchers found that obese children with larger waists are more likely to develop risk factors for cardiovascular disease, including high triglycerides and low HDL levels. Routine waist measurements may help identify which children are at a greater risk of developing the warning signs of cardiovascular disease.

SourceMedical College of Georgia at Augusta University·JournalInternational Journal of Pediatric Obesity·DateSep 10, 2009