John McKearn has been promoted to CEO of Kalypsys, the San Diego-based company said yesterday. He joined the company in 2003 as chief scientific officer and become president in 2004. Prior to Kalypsys, he was senior vice president of research at Pharmacia.

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US Attorney General Jeff Sessions is considering using DNA tests to determine relatedness between adult and child migrants, the Daily Caller reports.

Bloomberg reports that Brainstorm Cell Therapeutics plans to offer a treatment it is developing under the "right to try" law for hundreds of thousands of dollars.

In Nature this week: expansion of disease-resistance genes among long-lived oak trees, and more.

In a proof-of-concept study, researchers report being able to determine age from dried bloodstains, Discover's D-brief blog reports.