NS1219 ((R)-SPD502) is the isomer of NS 1209 HY-15074. NS1209 is a selective AMPA receptor antagonist with neuroprotective activity. NS1209 can be used for the research of stroke, neuropathic pain and epilepsy[1].
Noopept (GVS-111) is a medication promoted and prescribed in Russia and neighbouring countries as a nootropic.IC50 Value:Target: in vitro: Nooglutil exhibits pharmacologically significant competition with a selective agonist of AMPA receptors ([G-3H]Ro 48-8587) for the receptor binding sites (with IC50 = 6.4 +/- 0.2 microM), while the competition of noopept for these receptor binding sites was lower by an order of magnitude (IC50 = 80 +/- 5.6 microM) [1]. GVS-111 significantly increased neuronal survival after H(2)O(2)-treatment displaying a dose-dependent neuroprotective activity from 10 nM to 100 microM, and an IC(50) value of 1.21+/-0.07 microM. GVS-111 inhibited the accumulation of intracellular free radicals and lipid peroxidation damage in neurons treated with H(2)O(2) or FeSO(4), suggesting an antioxidant mechanism of action [2].in vivo: N-Phenylacetyl-L-prolylglycine ethyl ester (GVS-111) administered intravenously at a dose of 0.5 mg/kg/day, for the first time 1 h after ischaemic lesion and then for 9 post-operative days, with the last administration 15 min before testing, attenuated the deficit [3]. GVS-111 itself was not found in rat brain 1 h after 5 mg/kg i.p. administration up to limit of detection (LOD) under high performance liquid chromatography (HPLC) conditions [4]. The most pronounced antiinflammatory effect of dipeptide was observed on the model of adjuvant arthritis in rats, where the drug administered over 25 days in a daily dose of 0.5 mg/kg (i.m.) or 5 mg/kg (p.o.) significantly reduced the chronic immune inflammation (on the 12th day, by 94.0 and 74.1%, respectively) [5].Toxicity: Noopept administered in this dose range induced no irreversible pathologic changes in the organs and systems studied and exhibited no allergenic, immunotoxic, and mutagen activity [6]. Clinical trial: Discontinued
Philanthotoxin 74 dihydrochloride (PhTx 74) is an AMPAR antagonist; inhibits GluR3 and GluR1 with IC50s of 263 and 296 nM, respectively.
D-Cycloserine is an analog of the amino acid D-alanine.Target: AntibacterialD-Cycloserine selectively potentiated the duration of motor cortical excitability enhancements induced by anodal tDCS. D-Cycloserine alone did not modulate excitability [1]. Participants receiving d-cycloserine in addition to exposure therapy reported significantly less social anxiety compared with patients receiving exposure therapy plus placebo. Controlled effect sizes were in the medium to large range [2]. Chronic D-cycloserine significantly reduced nicotine self-administration selectively in rats with low baseline nicotine use, but was ineffective with the rats with higher levels of baseline nicotine self-administration [3].
GV-196771A is the sodium salt form of GV196771, is an NMDA receptor antagonist.
UBP-282 is a potent, selective and competitive AMPA and kainate receptor antagonist. UBP-282 inhibits the fast component of the dorsal root-evoked ventral root potential (fDR-VRP) with an IC50 value of 10.3 μM. UBP-282 antagonizes kainate-induced depolarisations of dorsal roots with a pA2 value of 4.96[1][2].
Domoic acid ((-)-Domoic acid; L-Domoic acid) is an excitatory neurotransmitter isolated from a form of marine vegetation, Nitzschia pungens[1]. Domoic acid produces neurotoxic effect through activating kainate receptor[2].
AMPA receptor modulator-6 is an AMPA receptor positive allosteric modulator (PAM). AMPA receptor modulator-6 can be used in the study of neurological diseases[1].
Otaplimastat (SP-8203), a matrix metalloproteinase (MMP) inhibitor, blocks N-methyl-D-aspartate (NMDA) receptor-mediated excitotoxicity in a competitive manner. Otaplimastat also exhibits anti-oxidant activity. Otaplimastat can be used for the research of brain ischemic injury[1][2][3].
TAT-GluA2 3Y is an inhibitor of AMPA receptor endocytosis. TAT-GluA2 3Y induces increased hind paw withdrawal latencies following thermal and mechanical stimuli in rats. TAT-GluA2 3Y also exhibits antinociceptive effects in a rat model of neuropathic pain. TAT-GluA2 3Y rescues pentobarbital-induced memory retrieval deficits in a rat model of learning and memory.
Ifenprodil tartrate is a novel N-methyl-D-aspartate (NMDA) receptor antagonist that selectively inhibits receptors containing the NR2B subunit.
Perzinfotel (EAA-090) is a potent, selective, and competitive NMDA receptor antagonist with neuroprotective effects. Perzinfotel (EAA-090) shows high affinity (IC50=30 nM) for the glutamate site[1][2].
CP-465022 Maleate is a potent, and selective noncompetitive AMPA receptor antagonist with anticonvulsant activity. CP-465022 is against Kainate-induced response with an IC50 of 25 nM in rat cortical neurons. CP-465022 provides a new tool to investigate the role of AMPA receptors in physiological and pathophysiological processes[1][2].
24-Hydroxycholesterol is a natural sterol, which serves as a positive allosteric modulator of N-Methyl-d-Aspartate (NMDA) receptorsR, and a potent activator of the transcription factors LXR.
Transcrocetin (trans-Crocetin), extracted from saffron (Crocus sativus L.), acts as an NMDA receptor antagonist with high affinity.
Felbamate-d5 is the deuterium labeled Felbamate[1]. Felbamate (W-554) is a potent nonsedative anticonvulsant whose clinical effect may be related to the inhibition of N-methyl-D-aspartate (NMDA)[2][3].
Zelquistinel is a N-methyl-D-aspartate (NMDA) receptor partial agonist used for the research of depression, anxiety and other related psychiatric disorders[1].
Glycine-2-13C,15N is the 13C- and 15N-labeled Glycine. Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors.
(S)-AMPA (L-AMPA), an active S-enantiomer of AMPA, is a potent and selective AMPA receptor agonist[1][2].
Dizocilpine, a potent anticonvulsant, is a selective and non-competitive NMDA receptor antagonist, with a Kd of 37.2 nM in rat brain membranes. Dizocilpine acts by binding to a site located within the NMDA associated ion channel and thus prevents Ca2+ flux[1][2].
GluN2B receptor modulator-1 is a selective GluN2B negative allosteric modulator with an IC50 value of 31 nM.
Alaproclate (GEA 654) hydrochloride is a selective and orally active serotonin re-uptake inhibitor (SSRI). Alaproclate hydrochloride also acts as a potent, reversible and noncompetitive antagonist of the NMDA receptor coupled ion flow[1][2].
Aptiganel hydrochloride (Cerestat) is a non-competitive NMDA receptor antagonist with neuroprotective effect.
(+)-MK 801 Maleate is a potent, selective and non-competitive NMDA receptor antagonist with Kd of 37.2 nM in rat brain membranes.
ZD-9379 is a potent, orally active, and brain penetrant full antagonist at the glycine site of the NMDA receptor. ZD-9379 has neuroprotective effect[1][2].
CGP 78608 hydrochloride is a highly potent and selective antagonist at the glycine-binding site of the NMDA receptor, with an IC50 of 6 nM. CGP 78608 acts as a potentiator of GluN1/GluN3A-mediated glycine currents, with an estimated EC50 in the low nM range (26.3 nM). Anticonvulsant activity[1][2].
Gavestinel (GV 150526) is a potent, selective, orally active and non-competitive antagonist of NMDA receptor. Gavestinel binds to the glycine site of the NMDA receptor, with a pKi of 8.5. Gavestinel can be used for the research of acute ischemic stroke[1].
Dynorphin A (1-10) an endogenous opioid neuropeptide, binds to extracellular loop 2 of the κ-opioid receptor. Dynorphin A (1-10) also blocks NMDA-activated current with an IC50 of 42.0 μM.
Felbamate hydrate (FBM) is a potent nonsedative anticonvulsant whose clinical effect may be related to the inhibition of N-methyl-D-aspartate (NMDA) .Target: NMDA ReceptorFelbamate (marketed under the brand name Felbatol by MedPointe) is an anti-epileptic drug used in the treatment of epilepsy. It is used to treat partial seizures (with and without generalization) in adults and partial and generalized seizures associated with Lennox-Gastaut syndrome in children. However, an increased risk of potentially fatal aplastic anemia and/or liver failure limit the drugs usage to severe refractory epilepsy.Felbamate has been proposed to a unique dual mechanism of action as a positive modulator of GABAA receptors and as a blocker of NMDA receptors, particularly isoforms containing the NR2B subunit. Although it is clear that felbamate does cause pharmacological inhibition of NMDA receptor of relevance of NMDA receptor blockade as a strategy for the treatment of human epilepsy has been questioned. Therefore, the importance of the effects of felbamate on NMDA receptors to its therapeutic action in epilepsy is uncertain.
NMDA receptor modulator 5 (Compound 195) is a potent NMDA receptor modulator. NMDA receptor modulator 5 can be used for neurological disorder research[1].