This Week in PNAS

In the PNAS Early Edition this week, investigators at the Laboratory of Experimental Hemato-Oncology in Luxembourg, along with their collaborators at the Institute for Systems Biology in Seattle and elsewhere, show that some circulating microRNAs "can be sensitive biomarkers" for chronic lymphocytic leukemia, as they've found that "certain extracellular miRNAs are present in CLL patient plasma at levels significantly different from healthy controls and from patients affected by other

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Consulting company McKinsey says diagnostics companies will have to combine genomic data analysis, electronic medical records, effective reimbursement strategies, and regulatory compliance in order to win.

A new report has found that researchers in Africa are still heavily dependent on funding from organizations in the US, Europe, and China, Nature News says.

An article in The Atlantic argues that the progress being made in science isn't keeping pace with the money and time being spent on research.

In Science this week: a CRISPR screen identifies sideroflexin 1 as a requisite component of one-carbon metabolism, and more.