Maternal effect on hippocampal exon 17 GR mRNA expression in young [postnatal day 6 (P6)] and adult [postnatal day 90 (P90)] animals (n = 5 animals per group). a, Representative Southern blots of the amplified exon 17 region from hippocampal tissue (514 bp band). b, Mean ± SEM ROD of hippocampal GR expression (**p < 0.002; **p < 0.001). c, Quantitative reverse transcription-PCR analysis of the amplified exon 17 region from hippocampal tissue relative to the levels of neuronal-specific β-III tubulin (*p < 0.01). d, Representative Western blot of GR expression in rat hippocampal tissue at postnatal days 6 and 90. e, Mean ± SEM ROD of hippocampal GR expression (P6, **p < 0.002; P90, **p < 0.001). IR, Immunoreactivity.