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The Dawn of Regenerative Medicine

George Church is "thinking a lot about using regeneration as the key to treatments and keeping people healthy," as he tells David Ewing Duncan at Technology Review's Experimental Man. Induced pluripotent stem cells "is where I'm putting almost all of my chips these days, because it combines many of my interests — genomics, sequencing, epigenetics, synthetic biology, stem cells," Church adds. While much of the work so far has been done in rodents, he says that it'll be years, not decades, until it is tested in people. "The only way people are going to get this is through some brave soul," Church says. "It will start with a sick person, and they will end up getting well, possibly more well than before they got sick."

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.