Robert Schwartz of the University of Houston has devised a method for reprogramming human skin cells into early-stage heart cells. These cells can then be implanted and grown into fully-developed beating heart cells, reversing damage caused by heart attacks. Schwartz's method differs from those of other stem cell researchers in that it requires fewer steps and yields more cells. First, the cells are treated with a virus and are transformed into induced pluripotent stem cells.

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US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.