This Week in Nature

In a paper published online in advance in Nature this week, a team led by investigators at the Massachusetts Institute of Technology shows that "cognitive capacities in the neurodegenerating brain are constrained by an epigenetic blockade of gene transcription that is potentially reversible." The MIT-led team says that histone deacetylase 2 mediates this blockade, adding that it "associates with and reduces the histone acetylation of genes important for learning and memory, which

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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.