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In Focus

Fixing the Signal

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Electrical stimulation may hold the key to treating conditions as diverse as asthma and liver disease—if only researchers can crack the code.

IMAGINE HAVING AN ELECTRICAL DEVICE the size of a grain of rice implanted in your body. The device connects to precisely selected nerves and reads and analyzes the electrical signals they send. If the device detects an aberrant signal—say, one that causes an overproduction of tumor necrosis factor (TNF), a chemical implicated in rheumatoid arthritis—the devi...

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In Depth

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Dispatches

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From Mass General

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