A team from Canada, Taiwan, and the US explore DNA methylation dynamics and related expression shifts in the brains of aging humans. Based on available DNA methylation data and array-based methylation profiling on post-mortem brain cortex tissue samples from identical or non-identical twins with Alzheimer's disease, the researchers saw signs of converging epigenetic and transcriptional patterns in individuals older than 75-years-old, particularly Alzheimer's-affected individuals.

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Lawmakers have asked four direct-to-consumer genetic testing companies to explain their privacy policies and security measures, according to Stat News.

The Trump Administration has proposed a plan to reorganize the federal government, the Washington Post reports.

The Economist writes that an increasing number of scientific journals don't do peer review.

In Science this week: genetic overlap among many psychiatric disorders, and more.