excitatory postsynaptic potentials

Ro 67-7476 is a positive allosteric modulator of mGluR1, which can enhance the calcium release induced by glutamate in HEK293 cells expressing rat mGluR1a. The EC50 is 60.1 nM. It is a P-ERK1/2 agonist, and can activate ERK1/2 phosphorylation without the addition of exogenous glutamate (EC50 = 163.3 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)

Gamma-DGG TFA is an antagonist of excitatory amino acids that can inhibit depolarization induced by NMDA, Kainate, and Quisqualate. In addition, it counteracts excitatory postsynaptic potentials (e.p.s.p.) in rat hippocampal slices.

Fluorolintane exhibits high affinity for the N-methyl-D-aspartate (NMDA) receptor, with a Ki of 87.92 nM. It can inhibit pre-pulse inhibition in rats and also suppresses NMDA receptor-induced field excitatory postsynaptic potentials in rat hippocampal slices.

RS 23579-190 is a highly selective 5-HT receptor antagonist in neuropharmacology. Capable of specifically blocking serotonin-mediated downstream excitatory postsynaptic potentials at picomolar concentrations, it is frequently used to dissect serotonergic signaling pathways within the gastrointestinal enteric nervous system and central cognitive networks.

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].

Acetylcarnitine (ALCAR) is a blood-brain barrier-permeable endogenous acetylated derivative of carnitine. It provides energy to neurons by facilitating fatty acid transport into mitochondria for beta-oxidation, exhibiting antioxidant and neuroprotective activities in Alzheimer's models.