This Week in PNAS

In the early, online version of the Proceedings of the National Academy of Sciences, researchers from China and the US describe DNA methylation profiles that appear to show promise for distinguishing tumor tissue from neighboring normal tissue, along with potential markers for diagnosing cancer and predicting metastases.

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Researchers describe a way to share data while keeping it secure, Agence France Presse reports.

In Science this week: genetic mutations typically associated with esophageal cancer are common in older, healthy individuals, and more.

India's Council of Scientific and Industrial Research has a new director-general, according to ScienceInsider.

A new study links more than a hundred genes to autism spectrum disorder, Discover's D-brief blog reports.