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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360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.