Weed Warnings

Results from a recent study by London psychiatrists, published in Biological Psychiatry, suggest that marijuana smokers of a certain genotype may find themselves at a higher risk of cannabis-related psychosis.

The researchers conducted a case-control study of 489 first-episode psychosis patients and 278 control subjects looking at variation at the rs2494732 SNP in the gene AKT1 and how it might be associated with cannabis-associated psychosis.

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National Institutes of Health Director Francis Collins appears before a House subcommittee to discuss his agency's budget request.

In PNAS this week: Akt3 amplification in glioma progression, Tibetan Plateau frog genome, and more.

The US Supreme Court has declined to review a decision involving the use of "inadvertently shed" DNA in a police investigation and subsequent conviction.

A panel at the New York Times discusses anonymity and privacy of users of 23andMe's services when access to its database is offered for research.