Brain immune system promotes relapses in drug addiction

Brain immune system promotes relapses in drug addiction

You can see a microglia – an immune cell of the brain, it has destroyed and absorbed other brain cells, so -called astrocytes (green) in a phase of cocaine withdrawal. © Test/ Reissner Lab

Drugs like cocaine change our brain profoundly. Anyone who was addicted can feel a strong desire for the intoxication. A study on rats now shows that the brain’s immune cells, the microglia, apparently play an important role. During the cocaine withdrawal, they dismantle support cells in the brain’s reward center.

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