Etifoxine(HOE 36-801) is potentiator of GABAA receptor function in cultured neurons. Etifoxine preferentially acts on β2 or β3 subunit-containing GABAA receptors. IC50 value:Target: GABAA receptorEtifoxine exhibits anxiolytic activity in rodents and humans with no sedative, myorelaxant or mnesic side effects. Etifoxine acts as a ligand of the translocator protein (TSPO); promotes axonal regeneration.
Tropisetron is a selective 5-HT3 receptor antagonist and α7-nicotinic receptor agonist with an IC50 of 70.1 ± 0.9 nM for 5-HT3 receptor.IC50 value: 70.1 ± 0.9 nMTarget: 5-HT3 receptor; α7-nicotinic receptorin vitro: Retinal ganglion cells(RGCs) pretreated with 100 nM tropisetron before glutamate increased cell survival to an average of 105% compared to controls. Inhibition studies using the alpha7 nAChR antagonist, MLA (10 nM), support the hypothesis that tropisetron is an effective neuroprotective agent against glutamate-induced excitotoxicity; mediated by α7 nAChR activation. Tropisetron had no discernible effects on pAkt levels but significantly decreased p38 MAPK levels associated with excitotoxicity from an average of 15 ng/ml to 6 ng/ml [2]. Tropisetron, but not granisetron, significantly inhibits the phosphatase activity of calcineurin, over-expresses the CB(1) receptors at both transcriptional and protein levels, and reduces cAMP content in cerebellar granule neurons (CGNs) [4].in vivo: Animals were treated intracerebroventricularly with tropisetron, mCPBG (selective 5-HT3 receptor agonist) or mCPBG plus tropisetron on days 1, 3, 5 and 7. Tropisetron significantly diminished the elevated levels of these markers and reversed the cognitive deficit. Interestingly, tropisetron was also found to be a potent inhibitor of calcineurin phosphatase activity [1]. tropisetron (5mg/kg/day) plus mCPBG (10mg/kg/day), and granisetron (5mg/kg/day) intraperitoneally on days 3-35 post-immunization. Treatment with tropisetron and granisetron markedly suppressed the clinical symptoms of EAE (p<0.001) and reduced leukocyte infiltration as well as demyelination in the spinal cord (p<0.05) [3].
Chaetochromin A (Compound 1) is a fungal metabolite. Chaetochromin A shows inhibitory effect on botulinum neurotoxin serotype A (BoNT A) (IC50= 24.6 μM)[1].
YNT-185 is a nonpeptide, selective orexin type-2 receptor (OX2R) agonist, with EC50s of 0.028 and 2.75 μM for OX2R and OX1R, respectively. YNT-185 ameliorates narcolepsy-cataplexy symptoms in mouse models[1][2].
Palmitic acid-13C16 sodium is the 13C-labeled Palmitic acid sodium. Palmitic acid sodium is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid sodium can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells[1][2].
(R,R)-Reboxetine mesylate is an antidepressant agent with great bioavailability. (R,R)-Reboxetine is the enantiomer of Reboxetine, which is a selective noradrenaline reuptake inhibitor. Reboxetine consists of (R,R) and (S,S) enantiomer, has low affinity for alpha-adrenergic and muscarinic receptors and low toxicity in animals[1][2].
Nortriptyline (Desmethylamitriptyline), the main active metabolite of Amitriptyline, is a tricyclic antidepressant used to relieve the symptoms of depression. Nortriptyline is a potent autophagy inhibitor[1][2].
(Lys22)-Amyloid β-Protein (1-42) is a mutation of WT Amyloid β-Protein (1-42) peptide[1].
N-Despropyl Ropinirole (SKF-104557) is an active metabolite of the dopamine D2 receptor agonist Ropinirole (HY-B0623). N-Despropyl Ropinirole is a full agonist at human D2 and D3 receptors. N-Despropyl Ropinirole is a partial agonistof the hD4 receptor[1].
Indacaterol-d3 is deuterium labeled Indacaterol.
2'-MeCCPA is a potent and selective A1 adenosine receptors (A1AR) agonist. 2'-MeCCPA efficiently inhibits cAMP modulation in both direct pathway medium spiny neurons (dMSNs) and indirect pathway medium spiny neurons (iMSNs)[1][2].
Cyproheptadine hydrochloride sesquihydrate is an antihistamine and is an antagonist of serotonin and histamine2.
Pronethalol ((±)-Pronethalo) is a non-selective β-adrenergic antagonist. Pronethalol is a potent inhibitor of Sox2 expression. Pronethalol protects against and to reverse Digitalis-induced ventricular arrhythmias, and limits the cerebral arteriovenous malformation (AVMs)[1][2].
MAFP (Methyl Arachidonyl Fluorophosphonate) is an selective, active-site directed and irreversible inhibitor of cPLA2 and iPLA2. MAFP is also a potent irreversible inhibitor of anandamide amidase.
Carvone is a ketone monoterpene found mostly in the essential oils from plants of the genus Mentha. Carvone is widely used in the pharmaceutical industry, cosmetics and agriculture. Carvone has such effects as antimicrobial, antioxidant, anti-inflammatory, antispasmodic, antinociceptive, anticonvulsant[1].
4-Fluorohippuric acid is a major metabolite of flupirtine with research potential against pain and epilepsy[1].
Tiagabine hydrochloride hydrate is a potent and selective GABA uptake inhibitor, used as an anticonvulsant agent, with IC50s of 67, 446 and 182 nM for [3H]GABA uptake in Synaptosomes, Neurons and Glia, respectively[1].
Flupentixol is a high potency thioxanthene with D1 and D2 dopamine receptor antagonism. Flupentixol is used in therapy of schizophrenia as well as in anxiolytic and depressive disorders[1][2].
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.
PNU-282987 is a selective α7 nicotinic acetylcholine receptor(α7 nAChR) agonist with Ki of 26 nM; no affinity for α1β1γδ and α3β4 nAChRs (IC50 ≥ 60 μM).IC50 value: 26 nM(Ki) [1]Target: α7 nAChR agonistin vitro: Treatment with PNU-282987 resulted in an attenuation of neuroinflammation in the MPTP-lesioned SN. Furthermore, PNU-282987 attenuated MPTP-induced dopaminergic cell loss in the SN and reduced striatal dopamine depletion [3].in vivo: Mice were subjected to 70% partial hepatic I/R for 60 min and pretreated with either vehicle or with PNU-282987, and blood and hepatic tissue samples were collected at 3, 6, and 12 h following reperfusion. pretreatment with PNU-282987 decreased serum transaminase levels and ameliorated liver injury after hepatic I/R. Moreover, pretreatment with PNU-282987 suppressed NF-κB activation, cytokine production (tumor necrosis factor α, interleukin 1β), and HMGB1 expression in liver after hepatic I/R [2]. Mice treated with 2.5 and 10 mg/kg of PNU devoted less time to rearing into open arms. In the HB task, MC mice displayed higher exploratory activity reflected in more head-dips (HD) during the first minute than EE and SE, whereas EE displayed low exploration levels reflected in total HD (5 min) [4].
ILS-920 is a nonimmunosuppressive Rapamycin analog with reduced immunosuppressive activity and potent neuroprotective activity. ILS-920 binds selectively to the immunophilin FKBP52 and to the β1-subunit of L-type voltage-gated calcium channels (VGCC). ILS-920 shows 200-fold selectivity for FKBP52 versus FKBP12[1].
SOD1-Derlin-1 inhibitor-1 (compound 56-20) is an inhibitor of SOD1-Derlin-1 interaction. SOD1-Derlin-1 inhibitor-1 inhibits SOD1G93A-Derlin-1 complex with an IC50 value of 7.11 μM. SOD1-Derlin-1 inhibitor-1 can be used for the research of amyotrophic lateral sclerosis[1].
UPF-648 is a potent kynurenine 3-monooxygenase (KMO) inhibitor; exhibits highly active at 1 uM (81 ± 10% KMO inhibition); ineffective at blocking KAT activity.IC50 value: 1 uM(81 ± 10 % inhibition) [1]Target: KMO inhibitorin vitro: BFF 122 inhibited KAT activity almost completely at both 1 and 0.1 mM. The effect was still remarkable at 0.01 mM (70 ± 1 % inhibition). At the same three concentrations, BFF 122 did not affect KMO activity significantly. In contrast, UPF 648 totally blocked KMO at 0.1 and 0.01 mM and was still highly active at 0.001 mM (81 ± 10 % inhibition), but the compound was essentially ineffective at blocking KAT activity [1]. UPF 648 binds close to the FAD cofactor and perturbs the local active-site structure, preventing productive binding of the substrate l-kynurenine. Functional assays and targeted mutagenesis reveal that the active-site architecture and UPF 648 binding are essentially identical in human KMO, validating the yeast KMO-UPF 648 structure as a template for structure-based drug design [3].in vivo: Applying an identical experimental design, separate rats were used to study the effect of KMO inhibition on the de novo synthesis of KP metabolites in the lesioned striatum. These animals were bilaterally injected with 0.1 mM UPF 648 and 3H-kynurenine in PBS. 0.1 mM UPF 648 significantly reduced the neosynthesis of 3-HK and QUIN in the lesioned striatum (by 77 % and 66%, respectively) and moderately (27%) but significantly increased the de novo formation of KYNA [1]. Administered to pregnant rats or mice on the last day of gestation, UPF 648 (50 mg/kg, i.p.) produced qualitatively similar changes (i.e., large increases in kynurenine and KYNA and reductions in 3-HK and QUIN) in the brain and liver of the offspring. Rat pups delivered by UPF 648-treated mothers and immediately exposed to neonatal asphyxia showed further enhanced brain KYNA levels [2]. UPF 648, has an IC50 of 20 nM and provides protection against intrastriatal QUIN injections in kynurenine aminotransferase (KAT II) deficient mice. UPF 648 treatment also shifts KP metabolism towards enhanced neuroprotective KYNA formation [3].
2614W94 is a selective, reversible inhibitor of monoamine oxidase-A with a competitive mechanism of inhibition and IC50 of 5 nM and Ki of 1.6 nM with serotonin as substrate.
PKI (5-24),amide (IP20-amide) is a 20-residue peptide that corresponds to the active portion of the heat-stable inhibitor protein of cAMP-dependent protein kinase. PKI (5-24),amide is a potent cAMP-dependent protein kinase (PKA) (PKA) inhibitor with a Ki of 2.3 nM[1].
Futoquinol is a neolignan isolated from the dried aerial parts of Piper kadsura (Piperaceae). Futoquinol potently inhibits NO production in microglia cells. Futoquinol has anti-neuroinflammatory activities[1].
Lethedioside A is an Enhancer of split 1 (Hes1) dimer inhibitor with an IC50 value of 9.5 μM[1].
11β-HSD1-IN-1 is an inhibitor of 11β-hydroxydehydrogenase 1 (11β-HSD1), with an IC50 of 52 nM, and used for the treatment of pain.
QNZ shows strong inhibitory effects on NF-κB transcriptional activation and TNF-α production with IC50s of 11 and 7 nM, respectively. EVP4593 is a neuroprotective inhibitor of SOC channel.
L-Tyrosine-13C,15N is the 13C and 15N labeled L-Tyrosine[1]. L-Tyrosine is a non-essential amino acid which can inhibit citrate synthase activity in the posterior cortex[2].