This Week in Science

In Science Translational Medicine this week, US and German researchers publish data showing how neutrophils use a microRNA to protect against harmful lung inflammation. The work suggests that upregulating this miRNA — miR-223 — may be an effective strategy for treating acute respiratory distress syndrome. The scientists found that mice infected with methicillin-resistant Staphylococcus aureus could be protected against severe lung inflammation when treated with miR-233.

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Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.