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Ce produit n'est pas destiné à diagnostiquer, traiter, guérir ou prévenir toute maladie. Ces déclarations n'ont pas été évaluées par la Food and Drug Administration.
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Ces informations sont fournies à titre éducatif uniquement et ne remplacent pas un avis médical professionnel, un diagnostic ou un traitement. Consultez toujours votre professionnel de santé avant d'utiliser des plantes, surtout si vous êtes enceinte, allaitez, prenez des médicaments ou avez une condition médicale.
Cicuta virosa
Plante humide européenne de la famille des Apiacées parmi les plus toxiques ; incluse pour la sensibilisation à la toxicologie et l'identification.
Cicuta virosa (water hemlock) is an extremely toxic wetland plant of the Apiaceae family, containing the potent neurotoxin cicutoxin. Despite historical confusion with edible species, it has no safe medicinal use and is only studied for its toxicological mechanisms. The primary active compounds include cicutoxin, cicutol, and falcarinol, which act as noncompetitive GABA-A receptor antagonists, leading to severe convulsions and death.
Cicutoxin and related polyacetylenes (cicutol, falcarinol) are potent noncompetitive antagonists at GABA-A receptors, particularly at the picrotoxin binding site. This blocks chloride ion conductance, leading to neuronal hyperexcitability and uncontrolled seizures. The compounds also inhibit cytochrome P450 enzymes (e.g., CYP3A4), potentially altering metabolism of co-administered drugs. Additionally, falcarinol exhibits weak acetylcholinesterase inhibition, though this is overshadowed by the GABAergic effects.
Plante humide européenne de la famille des Apiacées parmi les plus toxiques ; incluse pour la sensibilisation à la toxicologie et l'identification.
Cicuta virosa (water hemlock) is an extremely toxic wetland plant of the Apiaceae family, containing the potent neurotoxin cicutoxin. Despite historical confusion with edible species, it has no safe medicinal use and is only studied for its toxicological mechanisms. The primary active compounds include cicutoxin, cicutol, and falcarinol, which act as noncompetitive GABA-A receptor antagonists, leading to severe convulsions and death.
Cicutoxin and related polyacetylenes (cicutol, falcarinol) are potent noncompetitive antagonists at GABA-A receptors, particularly at the picrotoxin binding site. This blocks chloride ion conductance, leading to neuronal hyperexcitability and uncontrolled seizures. The compounds also inhibit cytochrome P450 enzymes (e.g., CYP3A4), potentially altering metabolism of co-administered drugs. Additionally, falcarinol exhibits weak acetylcholinesterase inhibition, though this is overshadowed by the GABAergic effects.