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Science News Archive November 2011 - Page 9


Page 9 of 28

JCI online early table of contents: Nov. 21, 2011

Researchers identify a new way to boost the aged immune response to flu viruses by inhibiting PGD2. They also discover that targeting BRAF in thyroid cancers could restore the efficacy of RAI therapy. Additionally, exploring EGFR as a therapeutic target for Cushing disease may provide new treatment options.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 21, 2011

Huskies lend insight into mercury risk

Researchers found an inverse correlation between mercury exposure and antioxidant status in Alaskan huskies, suggesting potential health risks for indigenous communities. The study highlights the need for monitoring and reducing mercury generation, particularly from coal-generated power plants.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateNov 20, 2011

Nerve cells key to making sense of our senses

A team of scientists has unraveled how the brain processes complex sensory signals, using a relatively simple computation performed by single nerve cells. The study confirms and extends a computational theory developed earlier, predicting that neurons fire in a manner predicted by a weighted summation rule.

SourceUniversity of Rochester·JournalNature Neuroscience·DateNov 20, 2011

Discovery of new muscle repair gene

Researchers have discovered a new muscle repair gene, MEGF10, which plays a crucial role in the fusion process of satellite cells. The findings provide accurate genetic testing and diagnosis for devastating conditions affecting muscle function, enabling hope for families affected by progressive muscle disease.

SourceUniversity of Leeds·JournalNature Genetics·DateNov 20, 2011

Heart rate recovery predicts clinical worsening in pulmonary hypertension

A new study found that heart rate recovery at one minute after a six-minute walking distance test is highly predictive of clinical worsening and time to clinical worsening in patients with idiopathic pulmonary arterial hypertension. Patients with low heart rate recovery were more likely to experience clinical worsening events and had s...

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateNov 18, 2011

Tweaking a gene makes muscles twice as strong

Researchers have discovered a new way to build muscle by suppressing a natural inhibitor, resulting in mice and worms with super-strong muscles. This breakthrough could lead to treatments for age-related or genetics-related muscle degeneration, as well as applications for athletes and individuals with genetic muscular dystrophy.

SourceSalk Institute·JournalCell·DateNov 18, 2011

Metabolic syndrome biomarkers predict lung function impairment after exposure to WTC dust

Researchers found that dyslipidemia and elevated heart rate increased the risk of developing abnormal lung function, while elevated amylin levels reduced this risk. The study suggests that systemic inflammation may play a role in promoting lung function impairment after particulate exposure.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateNov 18, 2011

Protection from severe malaria explained

Researchers discovered that a degradation product of defective hemoglobin blocks the establishment of a trafficking system used by the malaria parasite, preventing circulatory disorders and neurological complications. The study provides new insights into the molecular mechanism behind the protective effect of sickle-cell anemia against...

SourceHeidelberg University Hospital·JournalScience·DateNov 18, 2011

Chalmers scientists create light from vacuum

Scientists at Chalmers University of Technology have succeeded in creating light from vacuum by capturing photons that appear and disappear in the vacuum. The experiment confirms a fundamental principle in quantum mechanics, demonstrating the existence of virtual particles that can become real photons.

SourceSwedish Research Council·JournalNature·DateNov 18, 2011