Cayman 8-hydroxy DPAT (hydrobromide)

8-Hydroxy DPAT (8-OH-DPAT) is an agonist of serotonin (5-HT) receptor subtype 5-HT_1A (EC₅₀ = 12 nM in rat hippocampal membranes). It mimics the effect of serotonin (Item No. ) on reducing excitatory post-synaptic potentials (EPSPs) in the entorhinal cortex layers II and III when used at concentrations of 10 and 50 µM. In rhesus monkeys, it enhances the behavioral effects of Δ⁹-tetrahydrocannabinol (Δ⁹-THC; Item Nos. | ) in a discriminant stimulus-shock test when administered at a dose of 0.178 mg/kg. In mice, 8-OH-DPAT reduces the number of attack bites when administered directly to the dorsal raphe nucleus in a baclofen-induced model of aggressiveness and impairs contextual fear when administered prior to training at a dose of 0.5 mg/kg.^, It also reduces the incidence of apnea and improves respiratory regularity in a methyl-CpG-binding protein 2-deficient mouse model of Rett syndrome when administered at a dose of 50 µg/kg. In a rat model of diabetes, 8-OH-DPAT enhances bradycardia in response to vagal electrical stimulation.

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