Immune system involved in depression, animal study suggests
Tuesday, November 16, 2010 - 11:31
in Health & Medicine
A new animal study suggests the immune system plays a role in depression. Activation of the immune system caused mice to learn to run less on wheels in their cages -- an activity they normally like. The mice resumed their normal activity when the action of interleukin-6, an immune hormone that carries "sickness" signals to the brain, was blocked.