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Hypericin is a red-coloured anthraquinone-derivative, which is together with Hyperforin one of the principal active constituents of Hypericum (Saint John's wort). Hypericin is believed to act as an antibiotic and non-specific kinase inhibitor. Hypericin may inhibit the action of the enzyme dopamine β-hydroxylase, leading to increased dopamine levels, although thus possibly decreasing norepinephrine and epinephrine.

The large chromophore system in the molecule means that it can cause photosensitivity when ingested beyond threshold amounts. Because hypericin accumulates preferentially on cancerous tissues, it is also used as an indicator of cancerous cells. In addition, hypericin is under research as an agent in photodynamic therapy, whereby a biochemical is absorbed by an organism to be later activated with spectrum-specific light from specialized lamps or laser sources, for therapeutic purposes.

External links

* cite web
url = http://www.delano.com/ReferenceArticles/Hypericin-Active.html
title = Hypericin: the active ingredient in Saint John’s Wort
accessdate =
accessmonthday = September 18
accessyear = 2006
author =
last = Oubre
first = Alondra
authorlink =
coauthors =
date =
year = 1991
month =
format =
work =
publisher =
pages =
language =
archiveurl =
archivedate =

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Look at other dictionaries:

  • Hypericin — Strukturformel Allgemeines Freiname Hypericin Andere Namen …   Deutsch Wikipedia

  • hypericin — hy·per·i·cin (hī pĕrʹĭ sĭn) n. A drug, C30H16O8, produced synthetically or as an extract of Saint John s wort and used as an antidepressant and antiviral agent.   [Latin hyperīcum, Saint John s wort (from Greek huperīkon, hupereikos: hup , hupo …   Universalium

  • hypericin — noun A red coloured anthraquinone derivative, extracted from St Johns wort or prepared synthetically, used as an antidepressant and antiviral agent …   Wiktionary

  • Hypericin — Hy|pe|ri|cin [nlat. Hypericum perforatum = Johanniskraut (Bot.); ↑ in (3)], das; s; Syn.: 1,3,4,6,8,13 Hexahydroxy 10,11 dimethyl meso naphtho 7,14 dianthron: roter, fluoreszierender Pflanzenfarbstoff, der einen photodynamischen Effekt bewirkt …   Universal-Lexikon

  • hypericin — hy·per·i·cin hī per ə sən n a violet crystalline pigment C30H16O8 from Saint John s wort that has a red fluorescence and causes hypericism …   Medical dictionary

  • hypericin — [hʌɪ pɛrɪsɪn] noun a substance found in the leaves and flowers of St John s wort, credited with chemical and pharmacological properties similar to those of antidepressants. Origin early 20th cent.: from hypericum + in1 …   English new terms dictionary

  • hypericin — hy·per·i·cin …   English syllables

  • hypericin — hīˈperəsə̇n noun ( s) Etymology: International Scientific Vocabulary hyperic (from New Latin Hypericum, genus that produces it) + in : a violet crystalline pigment C30H16O8 from St. John s wort that has a red fluorescence and causes hypericism …   Useful english dictionary

  • Heinz Falk — Infobox Person name = Heinz Falk image size = 180px caption = Heinz Falk nationality = AUT residence= Linz, Austria birth date = birth date and age|1939|04|29 birth place = Sankt Pölten, Austria death date = death place = occupation = Professor… …   Wikipedia

  • Hyperizin — Dieser Artikel oder Abschnitt ist nicht hinreichend mit Belegen (Literatur, Webseiten oder Einzelnachweisen) versehen. Die fraglichen Angaben werden daher möglicherweise demnächst gelöscht. Hilf Wikipedia, indem du die Angaben recherchierst und… …   Deutsch Wikipedia

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