[Dark oxidation of unsaturated lipids and dihydroxy phenylalanine by photooxidized furocoumarins].

Autor: Sukhorukov VL, Potanenko AIa, Zakharova VA
Jazyk: ruština
Zdroj: Voprosy meditsinskoi khimii [Vopr Med Khim] 1983 Sep-Oct; Vol. 29 (5), pp. 75-8.
Abstrakt: Well-known skin photosensitizers furocoumarins--psoralen, angelio in and 8-methoxypsoralen were shown to photosensitize oxidation of unsaturated lipids and dihydroxyphenylalanine via a two-step mechanism. At the first step (UV-irradiation at 366 nm) photooxidation of furocoumarins occurred, at the second step--the photooxidized furocoumarins oxidized unsaturated lipids or dihydroxyphenylalanine in darkness. The photochemical activity of furocoumarins in the two-step reaction decreased as follows: psoralen greater than angelicin greater than 8-methoxypsoralen. Similar photoreactions appear to participate in induction of phototoxic effects of furocoumarins.
Databáze: MEDLINE