Fig. 3From: Impact of altered environment and early postnatal methamphetamine exposure on serotonin levels in the rat hippocampus during adolescenceFluctuation of 5HT during three different stages of adolescence. EE group represents best environmental conditions and standard separate worst environmental conditions. Graph A shows levels of 5HT after direct exposure and graph B shows levels of 5HT after indirect exposure. Levels of 5HT are expressed in ng of 5HT/mg of total protein in hippocampus. Values are means ± SEM *p < 0.05; **p < 0.01; ***p < 0.001Back to article page