Acción Biológica de las Furanocumarinas
Las más importantes acciones que tiene las furanocumarinas en los campos biológicos y terapéuticos, se derivan de su actividad fotosensibilizante sobre las células, la cual se manifiesta como fototoxicidad que altera y desorganiza numerosos procesos biológicos en diferentes tipos de células.
Esta actividad fotosensibilizante es explicable debido a la reactividad del estado triplete de las furanocumarinas que se generan cuando éstas interactúan con la radiación U.V, y cuyas posibles reacciones se pueden agrupar en dos categorias:
-Los fotoenlaces directos con macromoléculas como el DNA, el RNA y las proteinas.
-Las fotomodificaciones indirectas a los sustratos biologicos atravez de forma reactivas del oxigeno.
Historicamente, las furanocumarinas se han usado, junto con la radiacion U.V, en el tratamiento de varias enfermedades de la piel como la psoriasis, el vitiligo y la micosis; el bergaptenp solares, ademas, se usan como protectores solares en preparaciones cosméticas.
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