A UK-led team introduces a transcript-based strategy it came up with for classifying the age of various healthy human tissues, starting with array-based gene expression profiling on samples from 15 young and 15 elderly sedentary individuals. The researchers uncovered an RNA classifier that accurately classified almost 600 healthy muscle, skin, and brain tissues from 108 individuals enrolled in a Swedish birth cohort, they report.

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The Jackson Laboratory has filed a complaint accusing Nanjing University of breeding and re-selling its mouse models, the Hartford Courant reports.

Oxford researchers are turning to virtual reality to visualize genes and regulatory elements, Phys.org says.

In Science this week: neutrophils rely on microRNA to protect against lung inflammation, and more.

China is moving forward with plans to sequence a million citizens, the Wall Street Journal reports.