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Science News Archive July 2008 - Page 9


Page 9 of 20

Doctors' orders lost in translation

A Northwestern University study found that more than three-quarters of patients don't fully comprehend their emergency department discharge instructions. Patients who fail to follow instructions may have a higher risk of complications after leaving the hospital, according to lead author Kirsten Engel.

SourceNorthwestern University·JournalAnnals of Emergency Medicine·DateJul 17, 2008

Using genetics to improve traditional psychiatric diagnoses

A recent study published in Biological Psychiatry found four chromosomal regions linked to schizophrenia and bipolar disorder risk factors, suggesting that these disorders may represent different genetic subtypes. The discovery highlights the complexity of psychiatric diagnoses and provides new insights into potential treatment targets.

SourceElsevier·JournalBiological Psychiatry·DateJul 17, 2008

Researchers discover primary sensor that detects stomach viruses

Researchers at Washington University School of Medicine have identified MDA-5 as the primary immune sensor that detects norovirus infections. The discovery may lead to the development of a treatment that prevents or reduces infection, particularly for individuals with common genetic variations that make them more susceptible.

SourcePLOS·JournalPLOS Pathogens·DateJul 17, 2008

Chalk and talk

Researchers provide a template for online education that addresses obstacles to integrating traditional chalk and talk classes with digital tools. The template builds on principles suggested in 2005 for developing Asynchronous Learning Environments (ALEs) and outlines materials and tools for delivery, coursework, and assessment.

SourceInderscience Publishers·JournalInternational Journal of Management in Education·DateJul 17, 2008

Good breeding increases shelf life

A study by researchers at the US Department of Agriculture's Agricultural Research Service found that certain romaine and 'crisphead' lettuce cultivars can stay fresh for longer when packaged using modified-atmosphere packaging. This innovation has the potential to improve shelf life, quality, and sales of pre-cut salads and lettuce.

SourceAmerican Society for Horticultural Science·JournalJournal of the American Society for Horticultural Science·DateJul 17, 2008

Saving the wild orchids of Borneo

The American Society for Horticultural Science reports that Borneo is home to 2500-3000 orchid species, but many are endangered due to habitat destruction and over-exploitation. A recent study has identified 197 species of orchids in West Borneo, highlighting the need for conservation efforts to protect these rare species.

Natural selection may not produce the best organisms

Researchers developed computer models of RNA molecules evolving by mutation and natural selection, showing that optimal organisms often require a long sequence of interacting mutations. This challenges the idea that natural selection always leads to the best possible organisms in the long run.

SourcePLOS·JournalPLOS Computational Biology·DateJul 17, 2008

Obsessive compulsive disorder linked to brain activity

Researchers at University of Cambridge discovered under-active brain regions associated with genetic risk for obsessive compulsive disorder (OCD). Functional magnetic resonance imaging (fMRI) was used to measure brain activity in patients with OCD and their family members, showing impaired function in areas controlling flexible behavior.

SourceUniversity of Cambridge·JournalScience·DateJul 17, 2008

Study shows cost-effectiveness of 64-slice CT scanner in emergency department chest pain patients

A recent study published in Academic Emergency Medicine found that using a 64-slice CT scanner to evaluate low-risk chest pain patients in the emergency room is more cost-effective than current standard of care. The study shows improved patient outcomes and reduced costs by avoiding overnight stays in observation units and cardiac stre...

SourceNorthwestern Memorial HealthCare·JournalAcademic Emergency Medicine·DateJul 17, 2008

When fish talk, scientists listen

Researchers from the Marine Biological Laboratory discovered that midshipman fish use a similar region of the brain to produce vocalizations as humans do when laughing. The study suggests that sound-based social communication may be an ancient vertebrate success factor, contributing to their incredible diversity.

SourceMarine Biological Laboratory·JournalScience·DateJul 17, 2008

A viral cloaking device

Researchers at Caltech uncover how HCMV uses a stolen class 1 MHC protein, UL18, to hide from the immune system. The virus's decoy protein binds tighter than real MHC molecules, inhibiting immune response and allowing it to thrive without harming its host.

SourceCalifornia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJul 17, 2008

Journal of Asia-Pacific Entomology now published by Elsevier

The journal will play a key role in the Asia-Pacific Region's entomological research community, publishing original research papers and review articles. Elsevier has agreed to publish the journal on behalf of three societies, aiming to promote leading entomological research from Asia and worldwide.

SourceElsevier·JournalJournal of Asia-Pacific Entomology·DateJul 17, 2008

Measures to help species cope with climate change?

Scientists propose a framework for deciding when and how to intervene in species relocation due to climate change. They suggest bolstering conservation efforts, maintaining species in captivity, or finding new habitats may be inadequate alternatives. The study emphasizes the need to minimize climate change through mitigation.

SourceUniversity of York·JournalScience·DateJul 17, 2008

Researchers explore the genetic basis of social behavior in ants

A new study identifies 39 genes differentially expressed between workers with varying Gp-9 genotypes, including those regulating chemical signaling and response. The study also found 91 genes indirectly influenced by social environment, highlighting the genetic complexities of social behavior.

SourcePLOS·JournalPLOS Genetics·DateJul 17, 2008

JCI online early table of contents: July 17, 2008

Researchers have discovered that AHI1 protein instability contributes to Joubert syndrome, while Ahi1-HAP1 complex interactions regulate brain development. In contrast, studies on leprosy and atherosclerosis reveal links between innate immunity and human lipid metabolism, suggesting potential therapeutic targets.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 17, 2008