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Science News for June 6, 2002


Writing nanopatterns with DNA inks

Researchers at Northwestern University developed a new tool to write nanopatterns with DNA inks, enabling the creation of miniaturized gene chips with an array of diagnostic tests. This technology can produce spots of DNA down to 50 nanometers in diameter, reducing cost and time.

SourceNorthwestern University·JournalScience·DateJun 6, 2002

American Thoracic Society news tips for June (first issue)

Asthma airway remodeling begins in childhood and continues into adulthood, affecting lung function and increasing the risk of respiratory complications. A new study found that 7.4% of children with asthma developed structural abnormalities in their airways at age 18, a rate similar to adults with asthma.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 6, 2002

Procedure to cement spine now simpler

Researchers at Johns Hopkins Medicine found that percutaneous vertebroplasty can be performed safely without venography in most cases. The study showed that 205 consecutive procedures without venography resulted in no major complications or cement leakage, with over 80% of patients experiencing major pain relief.

SourceJohns Hopkins Medicine·JournalAmerican Journal of Neuroradiology·DateJun 6, 2002

Gene linked to infertility in mice

Researchers at Duke University Medical Center discovered a gene linked to male infertility in mice, which may also be associated with human infertility. The study found that the miwi gene plays an essential role in sperm production and its deficiency can lead to complete sterility in mice.

SourceDuke University Medical Center·JournalDevelopmental Cell·DateJun 6, 2002