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Science News for September 5, 2007


Ethnic minorities do stick with clinical research

A recent study found that ethnic minority women can be persuaded to take part in research studies. The factors leading to high retention rates included financial compensation and close communication with researchers. Researchers should tailor their strategies to fit different target groups.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateSep 5, 2007

Heeding the WARNing from malaria’s past

The World Antimalarial Resistance Network (WARN) aims to provide a globally co-ordinated effort to tackle malaria. The network will facilitate worldwide monitoring and characterisation of drug resistance, including clinical efficacy, in vitro response, molecular markers, and pharmacological properties.

SourceBMC (BioMed Central)·JournalMalaria Journal·DateSep 5, 2007

Superbugs, shapes and nanotechnology

Researchers have found that the protective coat of superbug Clostridium difficile can self-assemble into regular shapes, opening up new avenues for fighting hospital superbugs and commercial applications in nanotechnology. This discovery could lead to identifying weaknesses in the coats or discovering new target molecules.

Mold linked to asthma

A Cardiff University study found that removing indoor mold improved asthma symptoms, with a significant decrease in inhaler use and improvement of other respiratory issues. The study suggests keeping homes dry and well-ventilated can reduce exposure to mold spores.

SourceCardiff University·JournalThorax·DateSep 5, 2007

McGill study promises faster-acting anti-depressants

A McGill University study has discovered that a new class of serotonin receptor agonists can take effect four to seven times faster than existing selective serotonin reuptake inhibitors (SSRIs). This breakthrough has the potential to significantly improve treatment outcomes for patients with depression.

SourceMcGill University·JournalNeuron·DateSep 5, 2007

Engineers rescue aging satellites, saving millions

A team of engineers from Purdue University and Lockheed Martin Corp. developed a new technique to extend the service life of two communications satellites, saving $60 million for broadcasters. The technique equalizes propellant levels in all four fuel tanks, preventing premature shutdown and waste.

SourcePurdue University·JournalJournal of Spacecraft and Rockets·DateSep 5, 2007

How the public perceives biotech

A recent study reviews the current state of public knowledge on biotechnology, revealing popular misperceptions and scientific illiteracy. The article emphasizes the need for a rational public debate to discuss risks and benefits of agricultural biotechnology.

SourceBlackwell Publishing Ltd.·JournalBiotechnology Journal·DateSep 5, 2007

A possible route to preventing Alzheimer's cognitive decline?

A study published in Neuron found a link between the toxic brain protein Aâ peptide and neuronal overexcitation, leading to compensatory rewiring of brain circuitry. This overexcitation can contribute to cognitive deficits in Alzheimer's disease. Researchers suggest blocking this overexcitation may prevent such neurological deficits.

SourceCell Press·JournalNeuron·DateSep 5, 2007

'Holy Grail' of hearing: True identity of pivotal hearing structure is revealed

Researchers have identified two key proteins, cadherin 23 and protocadherin 15, that join together at the precise location where sound vibrations are converted into electrical impulses in the ear. This discovery sheds light on the hearing process and may lead to more precise therapies for treating people with hearing loss.

Study finds a high rate of asthma in college athletes

A new study by Ohio State University Medical Center found that nearly 40% of varsity athletes tested positive for exercise-induced asthma, including those without a prior history of the condition. The study highlights the need for routine diagnosis and management tools to detect this potentially serious condition among athletes.

SourceOhio State University·JournalMedicine & Science in Sports & Exercise·DateSep 5, 2007

Role reversal as humans suck life out of leeches

The European land leech Xerobdella lecomtei has become virtually extinct due to human-induced temperature increases in Austria over a 40-year period. The researchers found that rising temperatures led to a drastic reduction in soil moisture, making it difficult for the leech to survive.

SourceSpringer·JournalZeitschrift für Didaktik der Naturwissenschaften·DateSep 5, 2007

Research says doctor's gender may hinder early diagnosis of heart disease in women

A recent study by the University of Warwick found that doctors' genders can impact the early detection of coronary heart disease (CHD) in women. The researchers discovered that female doctors were more likely to consider psychological explanations for women's health problems and paid attention to presentation style, potentially diverti...

SourceUniversity of Warwick·JournalSociology of Health & Illness·DateSep 5, 2007

Dangerous liaisons

Researchers find that mis-regulated immune systems can establish reproductive barriers in plants, leading to hybrid necrosis. This phenomenon challenges the classical definition of a species and suggests that speciation may be a gradual process.

SourceMax-Planck-Gesellschaft·JournalPLOS Biology·DateSep 5, 2007

Farewell chicken tenders

Researchers at Northwestern University investigated a new study method using Behavioral Economics Theory to rehabilitate participants with unhealthy habits. Participants were assigned to change two behavior changes that had the greatest impact on other unhealthy behaviors.

A faster class of antidepressants

Researchers have discovered a new class of antidepressants that work by directly enhancing nerve impulses of serotonin neurons. The compounds, RS 67333 and prucalopride, target serotonin type-4 receptors and have been shown to reduce symptoms of depression in rats after just three days of treatment.

SourceCell Press·JournalNeuron·DateSep 5, 2007

Health equity for all: Time for action

The Commission on Social Determinants of Health highlights the significant gaps in health equity across the world, with life expectancies for African and South Asian children being less than 50 years. The report emphasizes that action is needed to address social and political factors contributing to these disparities.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 5, 2007