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Monoamine oxidase inhibitor
Methysticin
Другие языки:

Methysticin

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Methysticin
Methysticin.svg
Methysticin02.png
Names
Preferred IUPAC name
(6R)-6-[(E)-2-(2H-1,3-Benzodioxol-5-yl)ethen-1-yl]-4-methoxy-5,6-dihydro-2H-pyran-2-one
Identifiers
3D model (JSmol)
ChemSpider
KEGG
PubChem CID
UNII
  • InChI=1S/C15H14O5/c1-17-12-7-11(20-15(16)8-12)4-2-10-3-5-13-14(6-10)19-9-18-13/h2-6,8,11H,7,9H2,1H3/b4-2+/t11-/m0/s1 ☒N
    Key: GTEXBOVBADJOQH-FWEMWIAWSA-N ☒N
  • InChI=1/C15H14O5/c1-17-12-7-11(20-15(16)8-12)4-2-10-3-5-13-14(6-10)19-9-18-13/h2-6,8,11H,7,9H2,1H3/b4-2+/t11-/m0/s1
    Key: GTEXBOVBADJOQH-FWEMWIAWBD
  • COC1=CC(=O)O[C@H](C1)/C=C/C2=CC3=C(C=C2)OCO3
Properties
C15H14O5
Molar mass 274.272 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Methysticin is one of the six major kavalactones found in the kava plant. Research suggests that methysticin and the related compound dihydromethysticin have CYP1A1 inducing effects which may be responsible for their toxicity. Additionally, methysticin has been shown to potentiate GABAA receptor activity, contributing to the overall anxiolytic profile of the kava plant.

Toxicity

Methysticin induces the function of the hepatic enzyme CYP1A1. This enzyme is involved in the toxification of benzo[a]pyrene into (+)-benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide, a highly carcinogenic substance. Another related compound is dihydromethysticin, which also induces the function of CYP1A1. No report so far has described enhancement of CYP1A1 expression in animals or humans in vivo from any constituent of kava.


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