Bethesda, Maryland–(ENEWSPF)–July 28, 2011. NIH-funded 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.
When the researchers powered down the animals’ serotonin cells, the animals failed to sufficiently step up their…






