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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.
Echium vulgare
Biennial of disturbed European ground; flowers and leaves used in folk medicine for fever and respiratory conditions though contain pyrrolizidine alkaloids.
Viper's Bugloss (Echium vulgare) is a biennial plant native to Europe, historically used in folk medicine for fever, headaches, and respiratory catarrh, and applied topically for snakebite under the Doctrine of Signatures. Its primary active compounds include hepatotoxic pyrrolizidine alkaloids (PAs), along with mucilage, tannins, silicic acid, and flavonoids, which contribute to its demulcent and anti-inflammatory properties but limit modern therapeutic use due to safety concerns.
Pyrrolizidine alkaloids (e.g., echimidine, lycopsamine) undergo hepatic CYP450-mediated bioactivation to form reactive pyrrole metabolites that covalently bind to cellular macromolecules, leading to sinusoidal endothelial cell damage and veno-occlusive disease. Mucilage provides a soothing demulcent effect on irritated mucous membranes, while flavonoids (e.g., quercetin) exhibit antioxidant and anti-inflammatory activity via inhibition of NF-κB and COX-2 pathways. Tannins contribute astringent properties, and silicic acid may support connective tissue integrity, though these effects are overshadowed by PA toxicity.
Biennial of disturbed European ground; flowers and leaves used in folk medicine for fever and respiratory conditions though contain pyrrolizidine alkaloids.
Viper's Bugloss (Echium vulgare) is a biennial plant native to Europe, historically used in folk medicine for fever, headaches, and respiratory catarrh, and applied topically for snakebite under the Doctrine of Signatures. Its primary active compounds include hepatotoxic pyrrolizidine alkaloids (PAs), along with mucilage, tannins, silicic acid, and flavonoids, which contribute to its demulcent and anti-inflammatory properties but limit modern therapeutic use due to safety concerns.
Pyrrolizidine alkaloids (e.g., echimidine, lycopsamine) undergo hepatic CYP450-mediated bioactivation to form reactive pyrrole metabolites that covalently bind to cellular macromolecules, leading to sinusoidal endothelial cell damage and veno-occlusive disease. Mucilage provides a soothing demulcent effect on irritated mucous membranes, while flavonoids (e.g., quercetin) exhibit antioxidant and anti-inflammatory activity via inhibition of NF-κB and COX-2 pathways. Tannins contribute astringent properties, and silicic acid may support connective tissue integrity, though these effects are overshadowed by PA toxicity.