Mouse with 'off switch' in key brain cell population developed; Research may increase understanding of SIDS, depressive disorders

Scientists have developed a strain of mice with a built-in off switch that can selectively shut down the animals' serotonin-producing cells, which make up a brain network controlling breathing, temperature regulation and mood. The switch controls only the serotonin-producing cells, and does not affect any other cells in the animal's brains or bodies.

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