American Heritage® Dictionary of the English Language, Fourth Edition
- n. Any of a group of chemical compounds found naturally in certain plants that are used in the treatment of psoriasis and vitiligo.
- From New Latin Psōralea, plant genus, from Greek psōralea, neuter pl. of psōraleos, mangy (from the appearance of the plants' leaves), from psōrā, itch. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The resulting reaction is due to a substance called psoralen, used to make the skin more sensitive to a wavelength of ultraviolet light, UV-A, used to treat certain skin conditions.”
“The ensuing reaction -- most commonly seen in people such as bartenders who work outdoors with limes -- owes to a substance called psoralen, Flugman told Reuters Health.”
“With repigmentation, they typically give a medication such as psoralen and add then U.V. light, and that causes a reaction in this medication to try and re-pigment that skin.”
“PUVA is a one-two punch Psoriasis treatment that combines UV-A light with psoralen, which is a drug that increases the skin’s sensitivity to light.”
“One treatment for the rare skin cancer cutaneous T-cell lymphoma, for example, involves an interaction between a chemical (psoralen) and ultraviolet light.”
“Light and psoralen dosage can be altered if, after about 10 weeks, there is no visible improvement.”
“PUVA, which stands for psoralen + UVA light radiation, is a variation of this method.”
“In other words, psoralen causes your skin to soak up UVA rays much more than normal.”
“One of the most common forms of psoralen is a medicine called “Oxsoralen Ultra.””
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