Effect of L-DOPA on pCREB protein expression in the rat brains.

<p>Rats were treated with L-DOPA once daily for 7 days and the brains were quickly harvested for immunofluorescence staining of pCREB expression (A). The number of pCREB positive cells (n = 6 per group) was determined (B). The number of pCREB positive cells in L-DOPA treated groups was markedly larger than that in CG group. *P<0.05 vs. CG group.