Monoamine oxidase is an enzyme composed of different polypeptides. Monoamine oxidation catalyzes the oxidative deamination of various biological amines in brain and peripheral tissues by producing hydrogen peroxide. Monoamine oxidase plays an important role in maintaining the regulation of synaptic transmission, emotional behavior and other brain functions[1][2].
BTM-1086 is a potent anti-ulcer and gastric secretory inhibiting agent.
Naloxone hydrochloride is a potent opioid receptor antagonist.
Icalcaprant is a kappa-opioid receptor antagonist[1].
CGP 37849 is a potent, competitive and orally active N-methyl-D-aspartate (NMDA) receptor antagonist. CGP 37849 is an anticonvulsant in rodents and has antidepressant and anxiolytic-like effects[1].
Axillaridine A can be isolated from Sarcococca hookeriana var. digyna. Axillaridine A inhibits the catalytic activity of AChE[1].
NMDA-IN-1 is a potent and NR2B-selective NMDA antagonist with Ki of 0.85 nM; NR2B Ca2+ influx IC50 is 9.7 nM; no activities on NR2A, NR2C, NR2D, hERG-channel and α1-adrenergic receptor.Preparation of 2-[(4-benzyl)-1-piperidinyl)methyl]benzimidazole-5-ols as NMDA NR2B receptor antagonists for the treatment of neuropathic pain.By McCauley, James A.; Claremon, David A.; Liverton, Nigel J. From PCT Int. Appl. (2004), WO 2004048364 A1 20040610. NR2B-Selective N-Methyl-D-aspartate Antagonists: Synthesis and Evaluation of 5-Substituted BenzimidazolesBy McCauley, John A.; Theberge, Cory R.; Romano, Joseph J.; Billings, Susan B.; Anderson, Kenneth D.; Claremon, David A.; Freidinger, Roger M.; Bednar, Rodney A.; Mosser, Scott D.; Gaul, Stanley L.; et alFrom Journal of Medicinal Chemistry (2004), 47(8), 2089-2096.
Otilonium Bromide is an antimuscarinic used as a spasmolytic agent.Target: mAChROtilonium bromide inhibited the generation of ACh-induced calcium signals in a dose dependent manner (IC50=880 nM) [1]. Otilonium, a clinically useful spasmolytic, behaves as a potent blocker of neuronal nicotinic acetylcholine receptors (AChR). Whole-cell Ba2+ currents (IBa) through Ca2+ channels of voltage-clamped chromaffin cells were blocked by otilonium with an IC50 of 6.4 microM. Otilonium inhibited the secretory responses induced by 10 s pulses of 50 microM DMPP with an IC50 of 7.4 nM [2]. Otilonium bromide may represent an effective treatment for irritable bowel syndrome because it reduces its predominant symptom (abdominal pain/ discomfort) more than placebo does [3]. ilonium bromide (OB) is a spasmolytic agent that blocks L-Type Calcium channels in human colonic smooth muscle. otilonium bromide is safe, well tolerated and superior to placebo in reducing the frequency of abdominal pain, severity of abdominal bloating and protecting from symptom relapse in IBS. These results further confirm that patients with IBS can improve during and following treatment with otilonium bromide [4].
TC-2153 is a specific, small moelcule inhibitor of neuron-specific tyrosine phosphatase STEP with IC50 of 24.6 nM; increases tyrosine phosphorylation of STEP substrates ERK1/2, Pyk2, and GluN2B, and exhibits no toxicity in cortical cultures, shows specificity towards STEP compared to several other tyrosine phosphatases; improves cognitive deficits in 3xTg-AD mice, with no change in beta amyloid and phospho-tau levels.
VU0152100 is a potent and selective allosteric potentiator of M4 mAChR with an EC50 of 380 ± 93 nM.IC50 Value: 380 ± 93 nM (EC50) [1]Target: M4 mAChRin vitro: VU0152100 was selective for M4 relative to M1, M2, M3, and M5. VU0152100 dose-dependently potentiated the response to an EC20 concentration of ACh with EC50 values of 1.9 ± 0.2 μM, and increased the maximal response to ACh to approximately 130%. VU0152100 (10 μM) also enhanced the potency of ACh to induce GIRK-mediated thallium flux, as manifest by a robust (≈30-fold) leftward shift in the ACh CRC from 77 ± 1.2 nM (veh) to 2.35 ± 0.5 nM (VU0152100) [1].in vivo: Systemic administration of VU0152099 and VU0152100 provides robust brain levels of these compounds, the effects of VU0152099 and VU0152100 were evaluated in reversing amphetamine-induced hyperlocomotion in rats using a dose of 56.6 mg/kg i.p. for each compound with a 30-min pretreatment interval [1].
Bamaluzole is a GABA receptor agonist extracted from patent WO 2012064642 A1.
Biperiden(KL 373) Hcl is an antiparkinsonian agent, which is the selective central M1 cholinoreceptors blocker.Target: M1 receptorsBiperiden is an antiparkinsonian agent of the anticholinergic type. It is used for the adjunctive treatment of all forms of Parkinson's disease (postencephalitic, idiopathic, and arteriosclerotic)[1]. Biperiden has an atropine-like blocking effect on all peripheral structures which are parasympathetic-innervate. It also has a prominent central blocking effect on M1 receptors [2].Biperiden (0.11 mg/kg), benactyzine (0.3 mg/kg),caramiphen (10 mg/kg), procyclidine (3 mg/kg), and trihexyphenidyl (0.12 mg/kg) separately and each in combination with physostigmine (0.1 mg/kg) is to make a comparative assessment of potential cognitive effects. The results showed that benactyzine, caramiphen, and trihexyphenidyl reduced rats' innate preference for novelty, whereas biperiden and procyclidine did not [3].Clinical indications: parkinsonismFDA Approved Date: Toxicity: Drowsiness; vertigo; headache; dizziness
GR 64349 is a potent and highly selective NK2 receptor peptide antagonist, with an EC50 of 3.7 nM in rat colon. GR 64349 exhibits selectivity >1000 and >300-fold with respect to NK1 and NK3 receptors, respectively[1][2].
HTL22562 is a calcitonin gene-related peptide (CGRP) receptor antagonist for acute treatment of migraine.
OPC-14523 free base is an orally active sigma and 5-HT1A receptor agonist, with high affinity for sigma receptors (σ1/2 IC50=47/56 nM), the 5-HT1A receptor (IC50=2.3 nM), and the 5-HT transporter (IC50=80 nM). OPC-14523 free base shows antidepressant-like activity[1][2].
Ondansetron-d6 (hydrochloride) is the deuterium labeled Ondansetron hydrochloride[1]. Ondansetron hydrochloride is a serotonin 5-HT3 receptor antagonist used mainly as anantiemetic (to treat nausea and vomiting), often following chemotherapy[2][3][4][5][6][7].
Ipratropium bromide (Sch 1000) hydrate is a muscarinic receptor antagonist, with IC50s of 2.9 nM, 2 nM, and 1.7 nM for M1, M2, and M3 receptors, respectively. Ipratropium bromide hydrate relaxes smooth muscle, can be used in the research for COPD (chronic obstructive pulmonary disease) and asthma[1][2][3][4][5].
Acetylcholinesterase (ACHE; EC 3.1.1.7) is a cholinergic enzyme mainly found in neuromuscular junctions and cholinergic type chemical synapses, and is often used in biochemical research. Acetylcholinesterase catalyzes the breakdown or hydrolysis of acetylcholine and some other choline esters that act as neurotransmitters into acetate and choline. Acetylcholinesterase's main role is to terminate neuronal transmission and signaling between synapses to prevent ACh spread and activation of nearby receptors[1].
N-Desmethylclozapine is a dengue virus inhibitor, and an agonist of δ-opioid receptor.
12,14-Dichlorodehydroabietic acid, a chlorinated resin acid, is a potent Ca2+-activated K+ (BK) channel opener. 12,14-Dichlorodehydroabietic acid blocks GABA-dependent chloride entry in mammalian brain and operates as a non-competitive GABAA antagonist. 12,14-Dichlorodehydroabietic acid increases cytosolic free Ca2+ and stimulates transmitter release[1][2].
Dolasetron(MDL-73147) is a serotonin 5-HT3 receptor antagonist used to treat nausea and vomiting following chemotherapy.
LY108742 is a 5-HT2 receptor antagonist, with IC50 values of 9.3 nM (Rat), 57.2 nM (Pig), 56.8 nM (Monkey)[1].
Propionylpromazine hydrochloride (Propiopromazine hydrochloride), a dopamine receptor D2 (DRD2) antagonist, can be used in the research of Parkinson disease[1].
Cinitapride is an orally active 5-HT4 agonist and D2 antagonist. Cinitapride shows gastroprotective properties on mucosal injury. Cinitapride can be used in functional dyspepsia (FD) and gastroesophageal reflux disease (GERD) research[1][2][3].
Sibenadet hydrochloride (AR-C68397AA) is a dual D2 dopamine receptor, beta2-adrenoceptor agonist with bronchodilator activity. Investigation in animal models of key chronic obstructive pulmonary disease (COPD) symptoms has demonstrated that Sibenadet hydrochloride effectively inhibits sensory nerve activity, thereby reducing reflex cough, mucus production and tachypnoea.
Donitriptan is a potent, high efficacy agonist at 5-HT1B/1D receptors with pKis of 9.4 and 9.3, respectively[1].
Dalargin is a potent δ-opioid receptor agonist. Dalargin mitigates Gentamicin (HY-A0276)-induced cell death. Dalargin shows nephroprotective effects on Gentamicin-induced kidney injury. Dalargin shows antiulcer activity[1][2][3].
VU0119498 is a pan Gq mAChR M1, M3, M5 positive allosteric modulator (PAM), with EC50s of 6.04, 6.38, and 4.08 µM, respectively. VU0119498 has antidiabetic activity[1][2][3].
MK-3328 is a β-Amyloid PET ligand, which exhibits high binding potency with an IC50 of 10.5 nM.
4-Butyl-alpha-agarofuran (AF 5) is an anxiolytic and antidepressant agent. 4-Butyl-alpha-agarofuran a α-agarofuran derivative that can be isolated from Gharu-wood. 4-Butyl-alpha-agarofuran can be used for the research of neurological disease research[1].