4-Hydroxyretinoic acid (4-HRA) is a naturally occurring retinoid derivative with diverse biological effects. 4-Hydroxyretinoic acid is formed from retinol catalyzed by cytochrome P-450 isozyme(s), and is mainly metabolized by the liver in the body. 4-Hydroxyretinoic acid also serves as the substrate for human liver microsomal UDP-glucuronosyltransferase(s) and recombinant UGT2B7. 4-Hydroxyretinoic acid regulates gene expression and cell differentiation via binding to nuclear receptor RAR (Retinoic Acid Receptor), and activates RARs and RXR-alpha, to induce cancer cell apoptosis. In addition, 4-Hydroxyretinoic acid is also involved in various physiological processes such as immune regulation, neuroprotection, and anti-oxidation[1][2].
3,5,6,7,8,3',4'-heptamethoxyflavone, a flavonoid in C. unshiu peels, exhibits anti-tumor-initiating effect and Anti-neuroinflammatory activity[1][2][3]. 3,5,6,7,8,3',4'-heptamethoxyflavone inhibits collagenase activity and increased type I procollagen content in HDFn cells[1]. 3,5,6,7,8,3',4'-heptamethoxyflavone induces brain-derived neurotrophic factor (BDNF) expression via cAMP/ERK/CREB signaling and reduces phosphodiesterase activity in C6 cells[4].
Resolvin D2 is a metabolite of docosahexaenoic acid (DHA), with anti-inflammatory, anti-infective activities. Resolvin D2 is a potent regulator of leukocytes and controls microbial sepsis. Resolvin D2 is a remarkably potent inhibitor of TRPV1 (IC50 = 0.1 nM) and TRPA1 (IC50 = 2 nM) in primary sensory neurons[1][2][3].
CVN417 is an orally active α6 subunit-containing nAChR antagonist, modulating phasic dopaminergic neurotransmission in an impulse-dependent manner. CVN417 inhibits Ca(2+) effluents mediated by nAChR subunits with IC50s of 0.086 μM (α6), 2.56 μM (α3) and 0.657 μM (α4), respectively. CVN417 attenuates resting tremor in Rodent models, displays the potential to improve movement dysfunction, in conditions such as Parkinson's disease[1].
Farampator-d10 (CX-691-d10) is the deuterium labeled Farampator. Farampator (CX-691) is an AMPA receptor positive modulator.
Nicotinamide riboside tartrate, an orally active NAD+ precursor, increases NAD+ levels and activates SIRT1 and SIRT3. Nicotinamide riboside tartrate is a source of vitamin B3 (niacin) and enhances oxidative metabolism, protection against high fat diet-induced metabolic abnormalities[1]. Nicotinamide riboside tartrate reduces cognitive deterioration in a transgenic mouse model of Alzheimer’s disease[2].
Sinomenine, an alkaloid extracted from Sinomenium acutum, is a blocker of the NF-κB activation[1]. Sinomenine also is an activator of μ-opioid receptor[2].
CYT-1010 hydrochloride is a mu-opioid receptor agonist extracted from patent WO2013173730A2, with EC50s of 13.1 nM and 0.0053 nM on beta-arrestin recruitment and inhibition of cAMP production, respectively[1].
9-cis-Retinoic acid-d5 (ALRT1057-d5) is the deuterium labeled 9-cis-Retinoic acid. 9-cis-Retinoic acid (ALRT1057), a vitamin A derivative, is a potent RAR/RXR agonist. 9-cis-Retinoic acid induces apoptosis, regulates cell cycle and has anticancer, anti-inflammatory and neuroprotection activities[1][2][3][4][5][6].
Orphenadrine-d3 (hydrochloride) is the deuterium labeled Orphenadrine hydrochloride[1]. Orphenadrine hydrochloride is an orally active and non-competitive NMDA receptor antagonist (crosses the blood-brain barrier) with a Ki of 6.0 μM. Orphenadrine hydrochloride relieves stiffness, pain and discomfort due to muscle strains, sprains or other injuries. Orphenadrine hydrochloride is also used to relieve tremors associated with parkinson's disease. Orphenadrine citrate has good neuroprotective properties, can be used in studies of neurodegenerative diseases[2][3].
(-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2].
L-838417 is a selective partial agonist at the α2, α3 and α5 subtypes of the GABAA receptor and an antagonist at the α1, with binding Ki values of 0.79 nM, 0.67 nM, 1.67 nM, 267 nM, 2.25 nM and 2183 nM for α1β3γ2, α2β3γ2, α3β3γ2, α4β3γ2, α5β3γ2 and α6β3γ2[1].
Okadaic acid, a marine toxin, is an inhibitor of protein phosphatases (PP), including PP1 (IC50=15-50 nM), PP2A (IC50=0.1-0.3 nM), PP3 (IC50=3.7-4 nM), PP4 (IC50=0.1 nM), PP5 (IC50=3.5 nM), with a significantly higher affinity for PP2A. Okadaic acid increase of phosphorylation of a number of proteins by inhibiting PP, and acts a tumor promoter[1] [2].
Ralmitaront (RO6889450), a potent and orally active partial agonist of the trace amine-associated receptor 1 (TAAR1), acts as a neuroleptic agent. Ralmitaront can be used for the research of neuro-related diseases, such as schizophrenia (SCZ), schizoaffective disorder, and negative symptoms[1].
ZZL-7 is a fast-onset antidepressant agent. ZZL-7 works by disrupting the interaction between the serotonin transporter (SERT) and neuronal nitric oxide synthase (nNOS) in the dorsal raphe nucleus (DRN). ZZL-7 can cross the blood-brain barrier readily. ZZL-7 can be used for the research of major depressive disorder (MDD)[1].
αA-Conotoxin PIVA is a selective mouse musclenAChR inhibitor with IC50 for adult and fetal mouse musclenAChR sub> values are 2.3 nM and 22 nM respectively. αA-Conotoxin PIVA can be used in the study of neurological diseases.
Astragaloside protects the morphological structures and restores acetylcholine level in rat hippocampus, and improves brain functions via normalizing brain EEG[1].
ITH12575, a CGP37157 derivative, is a potent and selective mNCX blocker. ITH12575 reduces Ca2+ influx through CALHM1 at low micromolar concentrations[1][2].
(1S,2R)-Tranylcypromine hydrochloride is a potent antidepressant agent. (1S,2R)-Tranylcypromine hydrochloride can inhibits MAO and LSD1[1][2].
Acetoxyvalerenic acid is a natural compound that could be found in valerian[1].
Licarbazepine (BIA 2-005; GP 47779) is a voltage-gated sodium channel blocker with anticonvulsant and mood-stabilizing effects[1].
Demecarium Bromide (BC-48) is a potent cholinesterase inhibitor, with an apparent affinity (Kiapp) of 0.15 μM[1]. Demecarium Bromide (BC-48) is used as a glaucoma agent[2].
CEP-1347 is an inhibitor of the JNK/SAPK pathway with neuroprotective effects.
(Rac)-Rotigotine (N-0437) is a racemate of Rotigotine. Rotigotine is a full agonist of?dopamine receptor, a partial agonist of the?5-HT1A receptor, and an antagonist of the?α2B-adrenergic receptor, with?Kis of 0.71?nM, 4-15?nM, and 83?nM for the dopamine D3 receptor and D2, D5, D4 receptors, and dopamine D1 receptor.
JLK-6 markedly reduce the production of amyloid β-peptide (Aβ) by amyloid-β Precursor protein (APP) expressing HEK293 cells by affecting the γ-secretase cleavage of APP, with no effect on the cleavage of the Notch receptor[1].
Jedi2 is a Piezo1 channel activator, but no specific Piezo2 activators. Jedi2 binds to the mouse Piezo1 proteins with a Kd of 2770 μM[1].
AMG8380, an orally active and less active enantiomer of AMG8379, can serves as a negative control. AMG8380 inhibits human and mouse voltage-gated sodium channel NaV1.7 with IC50s of 0.907 and 0.387 μM, respectively. AMG8380 blocks Tetrodotoxin (TTX)-sensitive native channels with an IC50 of 2560 nM[1].
Moclobemide(Ro111163) is a reversible monoamine oxidase inhibitor (MAOI) selective for isoform A (RIMA) used to treat major depressive disorder.Target: Monoamine OxidaseMoclobemide orally administered 2 hours before decapitation preferentially inhibits MAO-A and PEA in rat brain with ED50 of 7.6 μmol/kg and 78 μmol/kg, respectively. Moclobemide orally administered 2 hours before decapitation preferentially inhibits MAO-A and PEA in rat liver with ED50 of 8.4 μmol/kg and 6.6 μmol/kg, respectively. Moclobemide (0.1 mM), which inhibits brain MAO-A activity by over 80%, does not affect benzylamine oxidase (rat heart) and diamine oxidase (rat small intestine) activity in vitro [1]. Moclobemide (10 mM-100 mM) includes in the culture medium during anoxia or with glutamate significantly increases in a concentration-dependent manner the amount of surviving neurons compared to controls in neuronal-astroglial cultures from rat cerebral cortex [2].Moclobemide (10 mg/kg p.o.) induces a significant decrease of all monoamine metabolites measured in rat brain [1]. Moclobemide, given via the drinking water (4.5 mg/kg/day), produces significant decreases in adrenal weight of rats after 5 (-23%) and 7 weeks (-16%) of treatment. Moclobemide upregulates hippocampal mineralocorticoid receptor (MR) levels in rats by 65%, 76% and 19% at 2 weeks, 5 weeks and 7 weeks of treatment, and upregulates Glucocorticoid receptor (GR) levels in this limbic brain structure by 10% at 5 weeks. Moclobemide treatment (5 weeks, 4.5 mg/kg/day) significantly attenuates stress (30 min novel environment)-induced plasma ACTH (-35%) and corticosterone (-29%) levels [3].
WRW4, a specific formyl peptide receptor-like 1 (FPRL1) antagonist, inhibits WKYMVm binding to FPRL1 with an IC50 of 0.23 μM. WRW4 specifically inhibits the increase in intracellular calcium by the FPRL1 agonists MMK-1, amyloid beta42 (Abeta42) peptide, and F peptide[1].
Rolofylline (KW-3902) is a potent, selective adenosine A1 receptor antagonist that is under development for the treatment of patients with acute congestive heart failure and renal impairment.Rolofylline is metabolized primarily to the pharmacologically active M1-trans and M1-cis metabolites by cytochrome P450 (CYP450)[1].Rolofylline is alleviating the presynaptic dysfunction and restores neuronal activity as well as dendritic spine levels in vitro, is an interesting candidate to combat the hypometabolism and neuronal dysfunction associated with Tau-induced neurodegenerative diseases[2].