Table 1.

Effect of amphetamine on ATF2, ATF3, and ATF4 mRNA expression in the nucleus accumbens

ConditionsATF2 (3 h)ATF3 (1 h)ATF4 (3 h)
Acute amph
    Sal1.00 ± 0.031.00 ± 0.091.00 ± 0.09
    Amph0.98 ± 0.051.87 ± 0.26*1.79 ± 0.30*
Repeated amph
    Sal1.00 ± 0.031.00 ± 0.091.00 ± 0.09
    Amph1.12 ± 0.03*1.12 ± 0.121.49 ± 0.08*
  • Values are mean ± SEM fold induction of mRNA. Asterisks denote statistical difference from saline control group (Sal). amph, Amphetamine group; Acute, single injection; Repeated, 7 daily injections.