mao b

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

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.

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

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.

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

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.

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

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).

Fucoxanthin (all-trans-Fucoxanthin) is a carotenoid naturally found in certain algae, serving as an accessory pigment in the chloroplasts of brown algae and most other heterokonts, which imparts a brown or olive-green color. It exhibits anti-obesity, antioxidant, anti-diabetic, anticancer, and anti-inflammatory activities.

4-Hydroxyderricin, a potent and selective MAO-B inhibitor (IC50: 3.43 μM), is the main active ingredient of Angelica sinensis, which mildly inhibits dopamine β-hydroxylase (DBH) activity and possesses antidepressant 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.

(+)-Kavain ((R)-KAWAIN) is one of the six major kavalactones found in the Piper methysticum (kava) plant; reversible inhibitor of MAO-B.

1. Desmethoxyyangonin (5,6-Dehydrokavain) protects LPS or LPS D-GalN-induced damages in cell or liver tissues mainly through de-regulating IKK NFκB and Jak2 STAT3 signaling pathways. 2. The induction of CYP3A23 by dihydromethysticin and Desmethoxy yangonin involves transcription activation, probably through a PXR-independent or PXR-involved indirect mechanism.

Methylpiperic acid, a piperine alkaloid, exhibits potent inhibitory activity on monoamine oxidase (MAO), with differing efficacy on isoforms: greater inhibition of MAO-A (IC 50 27.1 μM) compared to MAO-B (IC 50 1.6 μM), indicative of its bidirectional inhibition. Moreover, it is applied in the treatment of mental disorders [1].

Cassiaside B2 is an inhibitor of protein tyrosine phosphatase 1B (PTP1B) and human monoamine oxidase A (hMAO-A).Cassiaside B2 is an agonist of the 5-HT2C receptor with anti-allergic activity.Cassiaside B2 is one of the active ingredients in the naphthylpyrone reference extract (NRE).

1-Methyl-2-undecyl-4(1H)-quinolone, along with dihydroevocarpine and evodiamine, should serve as chemical markers for the quality control of Evodia rutaecarpa (Juss.) Benth. This compound selectively inhibits type B MAO (MAO-B) activity with an IC(50) value of 15.3 microM using the substrate kynuramine, while not inhibiting type A MAO (MAO-A) activity. It can mitigate high phosphate-induced calcification in human aortic valve interstitial cells (HAVICs) by inhibiting phosphate cotransporter (PiT-1) gene expression and exhibits moderate antiangiogenic activity against human tumor cells.

8alpha-(2-Methylacryloyloxy)hirsutinolide 13-O-acetate shows inhibitory activity toward CYP2A6 and MAO-A and MAO-B enzymes.

8alpha-Tigloyloxyhirsutinolide 13-O-acetate shows inhibitory activity toward CYP2A6 and MAO-A and MAO-B enzymes. 8alpha-Tigloyloxyhirsutinolide 13-O-acetate has anti-cancer activity, it is active against both cancer cell lines (IC50 = 3.50 microM for HT29

Cudraflavone B has anti-proliferative activity, mouse brain monoamine oxidase (MAO) inhibitory effects, apoptotic actions in human gastric carcinoma cells and mouse melanoma cells, and hepatoprotective activity. It may be a lead for the development of a potential candidate for human oral squamous cell carcinoma cells.

Rosmarinate acid(Rosemary acid) inhibits MAO-A, MAO-B and COMT enzymes with IC50s of 50.1, 184.6 and 26.7 μM, respectively