This Week in PNAS

In the early online edition of PNAS, scientists from Imperial College London and Pfizer report a successful application of metabolic profiling. Using NMR to profile the urine of 99 men who were given acetaminophen, they found that those with higher initial levels of p-cresol sulfate metabolized the drug less effectively than those with lower levels.

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A new study finds that a placental protein linked with preeclampsia can be targeted by RNA silencing, according to the New Scientist.

A settlement is expected in a Duke University lawsuit hinging on using falsified data to win grants, Retraction Watch and Science report.

In PNAS this week: approach for analyzing the expression of endogenous retroviruses, circular RNAs that influence host-virus interactions, and more.

A phylogenetic analysis finds that the rare hemimastigotes form their own supra-kingdom, CBC reports.