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Pyrrolizidinalkaloide (PA) sind eine Gruppe sekundärer Pflanzeninhaltsstoffe, die über 370 bekannte Strukturen umfasst und meist in zwei Formen, als tertiäres PA und als dessen korrespondierendes N-Oxid, auftreten. PA mit einer 1,2-ungesättigten Bindung können durch lebereigene Cytochrom-P-450 Monooxygenasen zu reaktiven Pyrrolestern mit toxischen Wirkungen aktiviert werden. Neben einer akuten Toxizität...
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