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Science News for April 22, 2010


Genomes of citrus canker pathogens decoded

The study provides genomic information that suggests possible intervention targets for further experimental investigation. The genome sequences of the two new bacterial strains will help researchers zero in on the molecular basis of citrus canker, shedding light on why one strain is more virulent than its counterparts.

SourceVirginia Tech·JournalBMC Genomics·DateApr 22, 2010

Where there's smoke ...

A new study by Tel Aviv University researchers reveals that pollution can significantly alter thunderstorm intensity, leading to changes in local weather patterns and rainfall. The study used lightning patterns as a quantitative measure of the impact of air pollution on cloud development over large areas.

SourceAmerican Friends of Tel Aviv University·JournalGeophysical Research Letters·DateApr 22, 2010

World-first study for cleaner aviation fuel

A team of experts has embarked on a groundbreaking project to develop sustainable aviation fuels in Australia and New Zealand. The Sustainable Aviation Fuels Road Map aims to accelerate the development of bio-derived jet fuels that can significantly reduce greenhouse gas emissions from the aviation sector.

Extremely preterm babies face long-term lung deficits

Research found that extremely preterm infants have abnormal lung function and are twice as likely to have asthma. Lung function impairment persists into middle childhood, especially those with bronchopulmonary dysplasia. Early monitoring and treatment can minimize long-term respiratory problems.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateApr 22, 2010

Magnitude of overdiagnosis in cancer indicates need for strategies to address the problem

A recent review found that approximately 25% of breast cancers and 60% of prostate cancers detected by screening tests may not be destined to cause symptoms or death due to overdiagnosis. This phenomenon leads to unnecessary treatment and other harms, emphasizing the need for strategies to address it.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateApr 22, 2010

Family caregiving stress filled and isolating

A recent study found that family caregivers with dementia experience a wide range of stressors, including behavior issues and financial strain. While existing interventions focus on specific stressors, research suggests that a one-size-fits-all approach is insufficient, highlighting the need for personalized interventions.

SourcePenn State·JournalAging & Mental Health·DateApr 22, 2010

Strep steps up in urinary tract infections

Research reveals that pathogenic strains of Group B Streptococcus (GBS) cause urinary tract infections by binding to bladder cells and triggering high levels of interleukin, an inflammatory cytokine. GBS infection may be more common than previously thought due to lack of clear risk factors.

SourceResearch Australia·JournalThe Journal of Infectious Diseases·DateApr 22, 2010

Periodic heart rate decelerations in premature infants

A study published in Experimental Biology and Medicine reports the discovery of periodic heart rate decelerations in premature human infants. The researchers developed a mathematical model based on Hopf bifurcation theory to describe the dynamics of these decelerations, which are statistically correlated with impending sepsis in neonates.

SourceSociety for Experimental Biology and Medicine·JournalExperimental Biology and Medicine·DateApr 22, 2010

Special Issue JVR focuses on potential of persons with autism

A special issue of the Journal of Vocational Rehabilitation focuses on the potential of autistic young adults, highlighting their ability to form relationships and enjoy employment benefits. Researchers provide case studies and programs to support practitioners in working with this population.

SourceIOS Press·JournalJournal of Vocational Rehabilitation·DateApr 22, 2010

Useful stroke trials left unpublished

A recent investigation found that 125 out of 940 completed clinical trials for acute ischemic stroke were not published in full, with some trials involving fewer than 10 patients. The study highlights the importance of publishing trial results to ensure patient safety and inform clinical practice.

SourceBMC (BioMed Central)·JournalTrials·DateApr 22, 2010

MU researchers show potential for new cancer detection and therapy method

Researchers at the University of Missouri have developed a new cancer detection and treatment method using nanoparticles that target specific receptors on tumor cells. The gold nanoparticles can be targeted to prostate, breast, or lung cancer cells, providing valuable imaging and therapeutic tools for early cancer detection and therapy.

SourceUniversity of Missouri-Columbia·JournalProceedings of the National Academy of Sciences·DateApr 22, 2010

Helping smokers with mental illness

Researchers at University of Nottingham launch £1.2 million project to improve 'quit smoking' services for smokers with severe mental illness. The program aims to address the historical culture of tolerance of smoking in mental health settings, where tobacco use is deeply embedded and often condoned by clinicians and staff.

Life history database aids wild primate studies

A collaborative effort has resulted in a comprehensive Primate Life History Database containing life history data from long-term field studies of seven species of lemurs, monkeys, and apes. The database facilitates comparative analyses of primate evolution and ecology.

SourceDuke University·JournalMethods in Ecology and Evolution·DateApr 22, 2010

Rainfall linked to skewed sex ratios

Researchers found that rainfall affects sex ratios in African buffalo, with more males born during rainy seasons. The study suggests the presence of sex ratio genes influencing semen quality and female-biased sex ratios during dry periods.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateApr 22, 2010