Fragile X (fmr1) mRNA expression is differentially regulated in two adult models of activity-dependent gene expression
2000
We sought to determine whether the fragile X mental retardation gene fmr1 is regulated in long-term potentiation (LTP) and electroconvulsive shock (ECS). In situ hybridization of fmr1 mRNA in hippocampus of rats given LTP in vivo showed no change in fmr1 mRNA levels relative to control. However, ECS induced a selective increase in fmr1 mRNA expression in the dentate gyrus (DG) granule cell layer at 6 h post-ECS. The ECS paradigm may unmask relevant activity-dependent regulatory mechanisms that modulate fmr1 gene transcription in vivo.
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