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This Week in Science

A paper in the early online edition of Science this weeks points to findings that suggest that lack of sleep leads to buildup of amyloid-beta protein in the brain, a hallmark of Alzheimer's disease. Monitoring the levels of this protein using in vivo microdialysis in mice, researchers led by Washington University scientists revealed that "preventing the mice from sleeping caused a 25 [percent] increase in amyloid beta levels," says a story in the Guardian.

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Bloomberg reports that the DNA-for-cash deal reported in Kentucky might be a more widespread scam.

St. Jude Children's Research Hospital scientists have treated infants with X-linked severe combined immunodeficiency using gene therapy in an early phase study.

St. Louis Public Radio reports that some African Americans are turning to DNA ancestry testing to help guide genealogical searches.

In Nature this week: a genomic analysis of the snailfish Pseudoliparis swirei, ancient DNA analysis gives insight into the introduction of farming to England, and more.