Fig. 7.
Changes in expression of phosphorylated cyclic adenosine monophosphate–response element–binding protein (pCREB) after intraperitoneal administration of midazolam in postnatal days 28 rats. A, B, and C (upper panels: ×4 magnification; lower panels: ×20 magnification) are photomicrographs of pCREB immunostaining in the hippocampal CA3 area from postnatal days 28 rats. D, E, and F (upper panels: ×4 magnification; lower panels: ×20 magnification) are those of pCREB immunostaining in the thalamus from postnatal days 28 rats. G and H show the number of pCREB-positive cells (mm2) in the hippocampal CA3 area and thalamus, respectively. MDZ = midazolam. **P < 0.01. Data are derived from 12 slices in each group.