NEW YORK (GenomeWeb News) - Investment bank Piper Jaffray today upgraded the stock of Genomic Health while downgrading its rating on Becton Dickinson.

It upgraded Genomic Health from "neutral" to "overweight."

The Redwood City, Calif.-based pharmacogenomic test maker yesterday announced the worldwide launch of its Oncotype Dx colon cancer test. The 12-gene expression test has been developed for assessing risk of disease recurrence in patients that have stage II colon cancer.

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A pair of researchers examines political leanings and views on genomics, finding more of a role for optimism and pessimism in people's views.

The genome of the carnivorous bladderwort is smaller than many other plant genomes, but it still holds on to important genes.

In PLOS this week: new gene linked to ocular coloboma, new statistical model for interrogating gene expression networks, and more.

With a new collection, PLOS highlights negative results it has published.