Monoamine

Norharmane (β-Carboline) is a natural β-carboline first isolated from plants of the Zygophyllaceae family.

Obtusin is a natural product.

Harmane (Loturine) is a bio-active β-Carboline and monoamine oxidase inhibitor found in coffee and tobacco smoke.

Ethyl 4-hydroxyphenylacetate is a selective inhibitor of monoamine oxidase A.

Octopamine hydrochloride ((±)-p-Octopamine hydrochlorid) is a biogenic monoamine structurally associated with noradrenaline. It can serve as a neurohormone, a neurotransmitter, and a neuromodulator in invertebrates.

4-aminobenzoic acid is an organic acid with UV-absorbing and antifibrotic properties. When exposed to light, 4-aminobenzoic acid absorbs UV light and releases excess energy through a photochemical reaction, which may cause DNA damage.4-aminobenzoic acid also increases oxygen uptake at the tissue level and may enhance monoamine oxidase (MAO) activity to promote serotonin degradation, which in excess may lead to fibrotic Changes.

β-Aminopropionitrile (3-Aminopropionitrile) is a selective inhibitor of lysyl oxidase.

Serotonin hydrochloride (Serotonin HCl) is an endogenous 5-HT receptor agonist, a monoamine neurotransmitter in the CNS, and a catechol O-methyltransferase (COMT) inhibitor(Ki=44 μM).

Rosmarinic acid (Labiatenic acid) is widely found in plants and has antioxidant, anti-inflammatory, and antibacterial activities. It inhibits MAO-A, MAO-B, and COMT with IC50 of 50.1, 184.6, and 26.7 μM respectively.

Paeonol (Peonol) is an active extraction from Paeonia suffruticosa. Paeonol inhibits MAO-A and MAO-B with IC50 of 54.6 μM and 42.5 μM, respectively.

Tyramine (Uteramine) is an indirect sympathomimetic that occurs naturally in cheese and other foods. Tyramine does not directly activate adrenergic receptors, but it can serve as a substrate for adrenergic uptake systems and MONOAMINE OXIDASE to prolong the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals and may be a neurotransmitter in some invertebrate nervous systems.

It is an isomer of cresotinic acid (2-hydroxy-3-methylbenzoic acid) and oxymethylbenzoic acid (2-methoxybenzoic acid). Derivatives of mandelic acid are formed as a result of metabolism of adrenaline and noradrenaline by monoamine oxidase and catechol-o-methyl transferase. It is also present in certain skin care products, is an intermediate molecule in the production of other biochemicals, may be used as an analytical reagent and is a precursor in the manufacture of dyes. Mandelic acid (acidomandelico) is found to be associated with phenylketonuria, which is an inborn error of metabolism.

Isatin (2,3-Indolinedione) is an endogenous MAO inhibitor.

Tetrahydroharmine (Leptaflorine) is a natural product found in the stems and large branches of Banisteriopsis caapi cultivar Da Vine. Tetrahydroharmine is a Monoamine oxidase A inhibitor.

Jatrorrhizine (neprotin) is a protoberberine alkaloid isolated from Enantia chlorantha (Annonaceae) and other species. It was found to have antimicrobial and antifungal activity. It binds and noncompetitively inhibits monoamine oxidase (IC50 4 micromolar for MAO-A and 62 for MAO-B).

Tryptamine is a monoamine alkaloid found in animals, plants, and fungi. It contains an indole ring structure and is structurally analogous to the tryptophan. It is found in trace amounts in the brains of mammals and is recognized to play a role as a neuro

Reserpine (Serpalan) is an alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.

Xanthoangelol, which can be extracted from Angelica keiskei, inhibits obesity-induced inflammatory responses.Xanthoangelol has antimicrobial activity, inhibits monoamine oxidase, and induces apoptosis in neuroblastoma and leukemia cells.

Harmol, a β-carboline alkaloid, is a monoamine oxidase inhibitor that can be used as an analytical reference standard.

Isogentisin (BRN 0258402), a compound isolated from Gentianaceae, is a novel compound for the prevention of smoking-induced endothelial damage.Isogentisin exhibits inhibitory effects on monoamine oxidase.

Rubrofusarin triglucoside, a glycoside isolated from Cassia obtusifolia Linn seeds, demonstrates inhibitory activity against human monoamine oxidase A (hMAO-A), exhibiting an IC50 value of 85.5 μM[1].

Bellidifolin (Bellidifoline) has anti-oxidation, hepatoprotective, anti-inflammatory and antitumor actions, it may contribute to the protective effects associated with nerve injury initiated by hypoxia by mechanisms related to inhibition of cell apoptosis independent of the ERK pathway. Bellidifolin shows interesting inhibitory activity of monoamine oxidases (MAO) A, it could be useful for treating type-2 diabetes, likely via the improvement of insulin resistance (IR). Bellidifolin also shows an antifungal effect (MIC values of 50 microg mL).

Rosiridin (6'-O-Deacetylrosiridoside C) has cardioprotective activity.

Methyl citrate, obtained from Opuntia ficus-indica var. saboten Makino fruits, serves as a potent Monoamine oxidase B (MAO-B) inhibitor with an IC50 value of 0.23 mM.