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Deletions and Obesity

British researchers report that a 16p11.2 deletion is associated with severe early-onset obesity. That deletion, as they say in Nature, includes the SH2B1 gene that is involved in leptin and insulin signaling. "This is the first evidence that copy number variants have been linked to a metabolic condition such as obesity," the Wellcome Trust Sanger Institute's Matt Hurles says in the UK's Telegraph. The Telegraph story also notes that some children in the study had been placed on the "at risk register because of fears they were being overfed" and have since been removed from the list.

The Scan

Could Cost Billions

NBC News reports that the new Alzheimer's disease drug from Biogen could cost Medicare in the US billions of dollars.

Not Quite Sent

The Biden Administration likely won't meet its goal of sending 80 million SARS-CoV-2 vaccine doses abroad by the end of the month, according to the Washington Post.

DTC Regulation Proposals

A new report calls on UK policymakers to review direct-to-consumer genetic testing regulations, the Independent reports.

PNAS Papers on Mosquito MicroRNAs, Acute Kidney Injury, Trichothiodystrophy

In PNAS this week: microRNAs involved in Aedes aegypti reproduction, proximal tubule cell response to kidney injury, and more.