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Science News Archive February 2008 - Page 13


Page 13 of 19

Breakthrough in pre-eclampsia test

Researchers at the University of Leeds have made a breakthrough in diagnosing pre-eclampsia, a condition that affects up to 15% of pregnancies. A user-friendly diagnostic kit is being developed to test pregnant women, with potential savings estimated at £500m for the NHS.

Aircraft noise raises blood pressure even whilst people are sleeping, says study

Researchers monitored 140 sleeping volunteers near London Heathrow and three major European airports, finding that aircraft noise increased systolic blood pressure by an average of 6.2 mmHg and diastolic blood pressure by 7.4 mmHg. The study's findings highlight the need to reduce night-time aircraft noise levels to protect public health.

SourceImperial College London·JournalEuropean Heart Journal·DateFeb 12, 2008

Ignition locks reduce DWIs

A new study found that vehicle interlocks significantly reduce DWIs among first-time offenders, with a 60% lower risk of repeat offenses. This economic benefit is substantial, saving $3 for every dollar spent on interlocks.

SourceBurness·JournalTraffic Injury Prevention·DateFeb 11, 2008

Gene therapy protocol at UCSD activates immune system in patients with leukemia

Researchers at UCSD developed a gene therapy protocol that successfully activated the immune system in six patients with chronic lymphocytic leukemia. The protocol introduced a gene with potential to activate an immune response and resulted in the production of antibodies reacting against leukemia cells.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateFeb 11, 2008

Children's Hospital scientists identify possible target for prevention and treatment of pneumonia

Researchers at Children's Hospital of Pittsburgh have identified interleukin 22 (IL-22) as a crucial factor in the immune response to bacterial pneumonia. The study, published in Nature Medicine, suggests that stimulating the Th17 arm of the immune system may lead to more efficient treatment and prevention of pneumonia.

SourceChildren's Hospital of Pittsburgh·JournalNature Medicine·DateFeb 11, 2008

Dartmouth researchers find the root of the evolutionary emergence of vertebrates

Researchers at Dartmouth College have discovered that microRNAs played a crucial role in the emergence of vertebrates, with diverse regulatory mechanisms driving genome assembly. The study's findings suggest that these tiny molecules were responsible for the origin of unique organs such as the liver, pancreas, and brain.

SourceDartmouth College·JournalProceedings of the National Academy of Sciences·DateFeb 11, 2008

Benefit of cancer prevention surgery differs between women with BRCA1 and BRCA2 mutations

A new study by Memorial Sloan Kettering Cancer Center found that risk-reducing salpingo-oophorectomy (RRSO) is associated with a 72% breast cancer risk reduction in women with BRCA2 mutations, compared to 38% for BRCA1 mutation carriers. The surgery also reduced the risk of gynecologic cancer by 85% in women with a BRCA1 mutation.

SourceMemorial Sloan Kettering Cancer Center·JournalJournal of Clinical Oncology·DateFeb 11, 2008

Doctor who? Are patients making clinical decisions?

As patients gain knowledge, they increasingly demand accurate information and higher expectations for their care. Doctors must balance scientific evidence with patient needs, while maintaining accountability for patient safety and care.

SourceSpringer·JournalClinical Orthopaedics and Related Research·DateFeb 11, 2008

UCLA stem cell scientists reprogram human skin cells into embryonic stem cells

UCLA stem cell scientists have successfully reprogrammed human skin cells into embryonic stem cells without using embryos or eggs. This breakthrough uses genetic alteration to turn back the clock on human skin cells and create cells nearly identical to human embryonic stem cells, which can become every cell type in the human body.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateFeb 11, 2008

Predictors of inaccurate online breast cancer information

A new study found that 41 false statements appeared on 18 web pages (5.2%) and that websites with complementary or alternative medicine were 15.6 times more likely to have inaccuracies. The authors advise patients to be skeptical of online health information and consult a clinician before taking action.

SourceWiley·JournalCancer·DateFeb 11, 2008

Why anyone can make a sandcastle

Scientists study fluid structures in moist sand using x-ray microtomography and find that the fluid and grains coexist in a filigree structure. This discovery explains the universal stiffness of wet granules, relevant to various industries such as pharmaceuticals and food production.

SourceMax-Planck-Gesellschaft·JournalNature Materials·DateFeb 11, 2008

Fake malaria drugs made in China; how the winter vomiting virus evolves

A collaborative study found that fake anti-malarial drugs, containing potentially toxic ingredients, were manufactured in China. The counterfeiters included dangerously small amounts of artesunate to fool screening tests, but these doses are too low to treat malaria effectively, encouraging the spread of resistant parasites.

SourcePLOS·JournalPLOS Medicine·DateFeb 11, 2008

Most with high blood pressure do not follow recommended diet

A recent study found that a small proportion of individuals with hypertension eat diets aligned with government guidelines, while many others consume unhealthy patterns. The Dietary Approaches to Stop Hypertension (DASH) trial showed that a balanced diet high in fruits and vegetables can significantly lower blood pressure.

SourceJAMA Network·JournalArchives of Internal Medicine·DateFeb 11, 2008

Gene regulators bind promiscuously, but often do nothing

A recent study found that many interactions detected by ChIP-chip are functionally irrelevant. The researchers discovered a clear relationship between the number of factor molecules bound at a given site and its role in gene regulation, suggesting that DNA sites with low-level binding may play no role in regulating gene expression.

SourcePLOS·JournalPLOS Biology·DateFeb 11, 2008

Evolving complexity out of 'junk DNA'

A study by Alysha Heimberg and colleagues found that microRNAs, previously considered 'junk DNA', are diverse in primitive vertebrates like sharks and lampreys, but less common in invertebrates. This discovery suggests that microRNAs played a crucial role in the evolution of complex organs unique to vertebrates.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateFeb 11, 2008

Swine flu monitoring needed for farm workers, study says

A University of Alberta study recommends monitoring swine flu in workers on pig farms as part of pandemic preparedness due to potential adaptation into efficient human-to-human transmission. The strain was detected in several household members and pigs without direct contact with the child who initially contracted it.

SourceUniversity of Alberta·JournalEmerging Infectious Diseases·DateFeb 11, 2008

Is your dating partner happy?

Research suggests that high self-monitors are less committed and happy in their romantic relationships than low self-monitors. They may present a false image to avoid face-threatening interactions, leading to intimate partners being unaware of their true feelings.

SourceNorthwestern University·JournalCommunication Reports·DateFeb 11, 2008

1-year results of bronchial thermoplasty in refractory asthma

Patients with refractory asthma experienced longer term improvement in pulmonary function, improved quality of life, and reduced rescue medication use after undergoing bronchial thermoplasty. The procedure resulted in a significant reduction in corticosteroid use, particularly among those who were able to wean off medication completely.

SourceAsthmatx·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 11, 2008