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Thinking With Your Gut

Researchers are beginning to uncover how the gut microbiome influences other parts of the body, including the brain, writes Clio Korn, a graduate student at the University of Oxford, at the Conversation.

The microbiome, he notes, has an early developed link with the immune system, and when a member of the microbiome that's usually there in low numbers becomes more abundant, that can set off an immune response with a range of effects. Elevated immune-related molecules, Korn says, have been linked to conditions like depression.

Additionally, other research has found that germ-free mice are less anxious than normal mice. But the timing of exposure was also important: germ-free mice exposed at three weeks of age to microbiome bacteria later acted like normal mice, while germ-free mice exposed to microbiome bacteria at 10 weeks were less anxious.

"Like the data on microbiome-immune interactions, these findings highlight the critical role gut bacteria play early in life," Korn says.

The Scan

NFTs for Genome Sharing

Nature News writes that non-fungible tokens could be a way for people to profit from sharing genomic data.

Wastewater Warning System

Time magazine writes that cities and college campuses are monitoring sewage for SARS-CoV-2, an approach officials hope lasts beyond COVID-19.

Networks to Boost Surveillance

Scientific American writes that new organizations and networks aim to improve the ability of developing countries to conduct SARS-CoV-2 genomic surveillance.

Genome Biology Papers on Gastric Cancer Epimutations, BUTTERFLY, GUNC Tool

In Genome Biology this week: recurrent epigenetic mutations in gastric cancer, correction tool for unique molecular identifier-based assays, and more.