This Week in PLOS

The University of Pennsylvania's Hakon Hakonarson and colleagues used transcriptome profiles of colonic mucus to look for gene expression shifts associated with ulcerative colitis. As they report in PLOS One, the investigators relied on a gene set enrichment analysis approach to assess three sets of gene expression data generated on endoscopic colon biopsy samples with microarrays.

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A research duo estimates in PLOS One the number of papers that have used misidentified cell lines.

UK's National Institute for Health and Care Excellence approves GlaxoSmithKline's SCID gene therapy despite cost.

Science reports that Brazilian researchers are petitioning for the reversal of budget cuts.

In PLOS this week: gene flow patterns in common ash, guidelines for using morpholinos in zebrafish, and more.