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Science News for June 27, 2006


New genes implicated in rheumatoid arthritis

Researchers have uncovered three disease-relevant genes in synovial tissue from identical twins with RA, shedding light on the genetic components of this inflammatory disease. The study identifies laeverin, 11ß-HSD2, and Cyr61 as key enzymes linked to protein degradation, inflammation, and new blood vessel formation.

SourceWiley·JournalArthritis & Rheumatism·DateJun 27, 2006

Movies show nanotubes bend like sluggish guitar strings

Researchers at Rice University have developed a method to visualize individual carbon nanotubes using standard optical microscopes and fluorescent dyes. The technique reveals the harmonic bending of nanotubes in liquids, providing insights into their behavior and potential applications in life sciences.

SourceRice University·JournalPhysical Review Letters·DateJun 27, 2006

Blood pressure variability increases risk for stroke death

A Mayo Clinic study found that patients with widely fluctuating blood pressure during the first three hours in the emergency room were much less likely to survive more than 90 days after a stroke. The study suggests that managing blood pressure acutely after ischemic stroke is crucial to improve survival rates.

SourceMayo Clinic·JournalNeurology·DateJun 27, 2006

New insights into the impact of pregnancy on inflammatory arthritis

A study of 25 pregnant women with inflammatory arthritis found that changes in serum fetal DNA levels correlated with disease improvement during pregnancy, but not postpartum. The researchers observed a significant inverse correlation between arthritis activity and serum fetal DNA concentration throughout the study.

SourceWiley·JournalArthritis & Rheumatism·DateJun 27, 2006

'Big Brother' eyes encourage honesty, study shows

Researchers found people put nearly three times as much money into an honesty box when watched by a pair of eyes compared to a poster featuring flowers. The study suggests people are more likely to cooperate when feeling observed, with potential applications in curbing anti-social behavior or law enforcement.

SourceNewcastle University·JournalBiology Letters·DateJun 27, 2006