The New York Times | Feb 2015

More than 200 scientists working on an ambitious federal project have begun to understand the complicated system of switches that regulates genes, turning some on and others off, making some glow brightly while others dim. They hope these discoveries, described in two dozen papers released on Wednesday, will eventually lead to a deeper understanding of diseases and new ways to treat or cure them.

The expectation is that by uncovering the switches and genes they control, scientists can add depth to genetic findings like those from a schizophrenia study published last summer. Researchers identified 108 scattered genes associated with the mental illness, but could not explain how they were related to one another or worked in the brain. An understanding of the circuits that control these genes may give them the clues they need, the researchers said.

“How does this conspiracy of genes work?” asked Eric Lander, director of the Broad Institute, a genetic research center affiliated with Harvard and M.I.T., who is not an author of the new papers. “This begins to connect the dots.”

Researchers have long known that genes are only a small part of DNA — the rest contains…

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