excitatory postsynaptic potentials

Ro 67-7476 is a positive allosteric modulator of mGlu1 receptors. No activity at human mGlu1 receptors. Potentiates glutamate-induced calcium release with EC 50 of 60.1 nM.

Unifiram is a nootropic agent.1It increases acetylcholine (ACh) release in the rat cerebral cortexin vivoand induces a long-lasting increase in the amplitude of field excitatory postsynaptic potentials (fEPSPs) in the rat hippocampal CA1 region (EC50= 27 nM). It does not bind to serotonin (5-HT), dopamine, muscarinic, nicotinic, adrenergic, glutamate, histamine, opioid, or GABA receptors at 1 μM. Unifiram (0.1 mg kg) improves memory in non-memory-impaired rats in a social learning test.2It also prevents memory deficits induced by the anticholinergic agent scopolamine, nicotinic receptor antagonist mecamylamine, GABABreceptor agonist baclofen, or α2-adrenergic receptor agonist clonidine in the passive avoidance test in mice when administered at a dose of 0.01 mg kg and prevents memory deficits induced by the AMPA kainate glutamate receptor antagonist NBQX at 0.1 mg kg.1 1.Romanelli, M.N., Galeotti, N., Ghelardini, C., et al.Pharmacological characterization of DM232 (unifiram) and DM235 (sunifiram), new potent cognition enhancersCNS Drug Rev.12(1)39-52(2006) 2.Ghelardini, C., Galeotti, N., Gualtieri, F., et al.The novel nootropic compound DM232 (unifiram) ameliorates memory impairment in mice and ratsDrug Develop. Res.56(1)23-32(2002)

CaMKIIα-PHOTAC is a photochemically targeted chimera (PHOTAC) that specifically targets Ca2+ calmodulin-dependent protein kinase II α (CaMKIIα), facilitating its ubiquitination and subsequent proteasome-mediated degradation when exposed to specific light wavelengths. Under illumination, CaMKIIα-PHOTAC diminishes synaptic functions and weakens evoked field excitatory postsynaptic potentials in the mouse hippocampus, impacting physiological responses and sustaining long-term potentiation and memory functions within dendritic domains [1].