This Week in Science

In a Science paper published online in advance this week, researchers in China show that loss-of-function mutations in PSENEN, PSEN1, or NCSTN — which encode components of the γ-secretase multiprotein complex — are associated with hidradenitis suppurativa, commonly known as familial acne inversa. The team found these independent mutations in their screen of six Chinese families with features of acne inversa and related clinical sympotoms.

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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.