Ivy dermatitis L24.9

Contact dermatitis caused by common non-toxic garden mould (Hedera helix), but mostly poison ivy (Rhus toxicodendron). S.a.u. Rhus dermatitis. The secondary plant substance falcarinol, a natural pesticide, is responsible for the contact sensitisation caused by Hedera helix.

1. Kjellenberg L et al(2012) Polyacetylenes in fresh and stored carrots (Daucus carota): relations to root morphology and sugar content. J Sci Food Agric 92:1748-1754.
2. Leonti M et al.(2010) Falcarinol is a covalent cannabinoid CB1 receptor antagonist and induces pro-allergic effects in skin. Biochem Pharmacol 79:1815-1826 Machado S et al. (2002) Occupational allergic contact dermatitis from falcarinol. Contact dermatitis 47:113-114.