MDMA (ecstasy) alters molecular mechanisms involved in memory formation in the rat hippocampus. Both acute and chronic MDMA exposure change the surface expression of CaMKII and NMDA receptor subunits, key proteins for synaptic plasticity and memory. These findings suggest that MDMA disrupts normal memory-related signaling pathways in the brain.
Flumazenil, midazolam, and ketamine each modulate anxiety-like behavior in rats, as measured by aversive ultrasonic vocalizations and performance on the elevated plus maze. The study provides evidence that these pharmacological agents affect anxiety-related responses, with results indicating distinct effects depending on the drug and behavioral test. No specific numerical outcomes or sample sizes are reported in the abstract.