Impact of altered environment and early postnatal methamphetamine exposure on serotonin levels in the rat hippocampus during adolescence.

Present study shows that MA along with environment or housing affect 5HT levels, depending on both the age and the method of application (direct or indirect). These findings extend the knowledge on the effects of MA alone and in combination with different housing conditions on the developing brain and highlight the increased sensitivity to MA during the first few months after birth.