AMPA GluR receptor subunit mRNAs in rat brain, 96 h after
long-term diazepam-treatment (■) or vehicle-treatment
(□) withdrawal. Data are mean ± SE of 5–6 animals. *,
P < 0.05 and **, P < 0.01,
compared with respective vehicle-treated group; #,
P < 0.01 when GluR2,3,4 mRNA subunits are compared
with GluR 1 mRNA subunit. (ANOVA followed by Duncan's multiple
comparison test.) ND, not determined