Early Arrival

Scientists have long been searching for biomarkers for early detection of Alzheimer's disease. Now, new research suggests that such markers might be apparent even earlier than thought.

In a study published this week in The Lancet Neurology, a team of researchers found that biomarkers linked to Alzheimer's were apparent at least 20 years before the onset of symptoms.

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In Science this week: International Wheat Genome Sequencing Consortium publishes the bread wheat cultivar Chinese Spring reference genome, and more.

At his FDA Law Blog, Jeffrey Gibbs discusses FDA's technical assistance for the draft Diagnostic Accuracy and Innovation Act.

The New York Times reports that genetic testing has uncovered unfaithful penguins at a Utah aquarium.

Cancer researcher loses funding under new Wellcome Trust anti-bullying policies, the Guardian reports.