Table 1.

Striatal levels of DA from animals treated with saline or METH

TreatmentTime after treatment
1 week1 month6 months12 months
Saline13.74  ± 0.6614.06  ± 0.7713.52  ± 0.5813.81  ± 0.78
METH6.39  ± 0.71*7.25  ± 0.61*10.84  ± 0.43*12.70  ± 0.77
  • Levels are expressed as micrograms per gram wet weight of tissue. Values are mean ± SEM for 14–15 animals per group.

  • *p < 0.05 versus saline group at same time point (two-way ANOVA followed by Newman–Keuls post hoccomparisons).