| psora | <medicine> A cutaneous disease; especially, the itch. Origin: L, fr. Gr. Source: Websters Dictionary (01 Mar 1998) |
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| psoralen | <pharmacology> Drug capable of forming photoadducts with nucleic acids if irradiated with ultraviolet light. (06 Oct 1997) |
| psoralen synthase | <enzyme> Nadph-dependent cytochrome p-450 monooxygenase which converts (+) marmesin by initial hydroxylation at c3', followed by release of water, acetone and psoralen Registry number: EC 1.14.13.- Synonym: psoralen 5-monooxygenase (26 Jun 1999) |
| psoralens | <chemical> Substances found in many different plants, especially psoralea corylifolia (legume). They are used for skin diseases, especially vitiligo and as sunscreens. They interact with nucleic acids and are also used as research tools. Psoralens have a coumarin molecule with a furan ring. Pharmacological action: dermatologic agents, photosensitizing agents. (12 Dec 1998) |
Synonyms :
Synonyms :
| psoralen |
1. any of a group of photosensitizing constituents of plants such as Ammi majus or Psoralea corylifolia; they include methoxsalen and trioxsalen and may be ingredients of perfumes or drugs. See also phototoxic dermatitis, under dermatitis. 2. any of the plants that contain one of these substances.
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| psora | widely distributed genus of herbs or shrubs with glandular compound leaves and spicate or racemose purple or white flowers |
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| psora | densely hairy perennial of central North America having edible tuberous roots |
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