This Week in Science

In this week's Science Signaling, a Vanderbilt University-led team publishes a study demonstrating how epigenetics can influence neuronal excitability, which is known to be dysregulated in many brain disorders. By studying rat cortical neurons in vitro, the researchers found that dynamic DNA methylation helps set the threshold for the responsiveness of the neuronal membrane. By blocking an enzyme that triggers DNA methylation, they were able to make neurons more responsive.

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US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.