hypericin


Also found in: Dictionary, Wikipedia.
Related to hypericin: pseudohypericin

hypericin

(hī-pĕr-i-sin),
Component of St. John's wort (Hypericum perforatum).
See also: St. John's wort.

hypericin

(hī-pĕr′ĭ-sĭn)
n.
A drug, C30H16O8, produced synthetically or as an extract of Saint John's wort and used as an antidepressant and antiviral agent.

hypericin

A polyhydroxypolycyclic hydrocarbon extract from the St John’s wort (Hypericum spp), which causes photosensitisation in grazing animals and has been anecdotally reported to prevent retroviral infection.

hypericin (hī·perˑ·i·sin),

n an extract from the plant
Hypericum perforatum, commonly known as St. John's wort; used to treat depression, sleep disorders, and viral infections; the poten-tial to treat HIV is currently under investigation.

hypericin

the exogenous photodynamic agent in hypericumperforatum—St. John's wort.
References in periodicals archive ?
Research also shows that the herb, especially the component hypericin (most, but not all, St.
As a result, the effect of the chemical mediators of serotonin, norepinephrine, and dopamine in the brain nuclei increases; thus, mood is improved and depression relieved (61) Later it was found that in addition of hypericin, flavonoids present in the plant also inhibit the mentioned enzymes (1).
Conjunction of glutathione level, NAD(P)H/FAD redox status and hypericin content as a potential factor affecting colon cancer cell resistance to photodynamic therapy with hypericin," Photodiagnosis and Photodynamic Therapy, vol.
The herb St John's wort, has two unique components, hypericin and hyperforin, which have an antidepressant action.
Characterization of various Hypericum perforatum clones by hypericin and RAPD analyses.
Another marker constituent, hypericin, has been shown in animal studies to down regulate CD8 mediated cytotoxicity and inhibit tumour necrosis factor alpha (TNF-[alpha]) induced apoptosis in vitro and therefore modulate the immune system.
The microscopic observation of the flowering top powder showed glands that are rich in hypericin, the active principle, fragments of anthers including pollen grains and part of epidermic tissue (Figure 5).
The drops, administered three times daily at an unspecified dose, contained hypericin 0.
Glandule filled with oil and less numerous dark dots containing red dye, hypericin are on leaves.
Hypericin and hypocrelin, isolated from Hypericum perforatum and Hypocrella bambuase, respectively, have shown anti-HIV and antitumour activity (8), while other studies demonstrated antibacterial activity with UV light activation (20).
Likewise, flavonoids are pharmacologically active compounds and also act as co-effectors to improve the biopharmaceutical properties of hypericin (BUTTERWECK & SCHMIDT, 2007).
John's Wort extract (Hyperin) that contained hypericin 0.