This Week in PNAS

In PNAS this week, researchers in New York, Massachusetts, and California collaborated to show how the polyamine pathway contributes to the pathogenesis of Parkinson's disease. The team started by using fMRI to identify regions of the brain stem resistant to the disease and then profiled gene expression levels from postmortem brain regions and identified a decrease in the catabolic polyamine enzyme spermidine/spermine N1-acetyltransferase 1, related to the disease.

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CNBC reports that Amazon invested in the startup Grail as it sees an opportunity for its cloud computing company in genomics.

Lawrence Krauss writes at Slate that science is needed for good public policy and should not be ignored.

Researchers are working on re-making the yeast genome from scratch, according to the Associated Press.

In Cell this week: functional profiling of Plasmodium genome, a self-inactivating rabies virus, and more.