This Week in Nature

In Nature Genetics, a multi-institute team from the UK report on the identification of common and low-frequency variants associated with severe early-onset obesity. The scientists conducted single-nucleotide polymorphism and copy number variation association analyses in more than 1,500 children with obesity and about 5,300 controls.

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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.