By transferring the gut microbiomes of adult male mice into young female mice, researchers led by Jayne Danska from the Hospital for Sick Children Research Institute in Toronto report in Science that they were able to stave off the development of type 1 diabetes in those female mice. Additionally, the researchers note that the transfer also affected testosterone levels in the female recipient mice as well as led to metabolomic changes.

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The US Food and Drug Administration has new guidelines that enable some gene and cell therapies to undergo expedited review, according to the New York Times.

Using gene drives to control invasive species might be too risky, an initial advocate of the approach says.

In Science this week: intellectual property experts argue patent battles such as the one over CRISPR are wasteful, and more.

Researchers have grown tumors in 3D cell cultures to better understand cancer, the Economist reports.