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Science News for November 6, 2009


Air pollution increases infants' risk of bronchiolitis

A new study found that air pollution increases the risk of bronchiolitis in infants, with higher exposure levels associated with a significant increase in risk. The research analyzed data from nearly 12,000 infant diagnoses and found that traffic-derived air pollutants were linked to an increased risk of bronchiolitis.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateNov 6, 2009

Possible help in fight against muscle-wasting disease

Researchers at the University of Oregon and University of Rochester discovered a compound that reverses genetic defects in RNA leading to type 1 myotonic dystrophy. The compound, pentamidine, disrupts complexes formed by expanded repeats and protein molecules, allowing proper splicing errors to be rescued.

SourceUniversity of Oregon·JournalProceedings of the National Academy of Sciences·DateNov 6, 2009

Babies with an accent

Researchers found that French infants produce rising crying tones and German babies cry with falling intonation, suggesting early exposure to language-specific intonation patterns. This study suggests that the sense of hearing develops before other senses and influences a child's ability to learn their mother tongue.

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateNov 6, 2009

DNA molecules in moss open door to new biotechnology

Scientists from Uppsala University have successfully introduced plasmid-based methods into Physcomitrella moss cells, opening doors to powerful techniques in plant research. This breakthrough enables gene cloning and overexpression directly in plant cells without the need for single-cell organisms like bacteria or yeasts.

SourceUppsala University·JournalProceedings of the National Academy of Sciences·DateNov 6, 2009