RSS-Feed abonnieren
DOI: 10.1055/a-2117-9426
Anthelmintic Activities of Extract and Ellagitannins from Phyllanthus urinaria against Caenorhabditis elegans and Zoonotic or Animal Parasitic Nematodes
Gefördert durch: Deutsche Forschungsgemeinschaft 423277515; HE1642/12-1Gefördert durch: Deutsche Forschungsgemeinschaft 423277515; LI 793/16-1
Gefördert durch: Deutsche Forschungsgemeinschaft 423277515; STR 1171/17-1


Abstract
The aerial parts of Phyllanthus urinaria are used in traditional medicine in West Africa against helminthiasis, but their anthelmintic potential has not been evaluated until now. Within the current study, a hydroacetonic extract (AWE) and fractions and isolated ellagitannins from P. urinaria were, therefore, tested in vitro against Caenorhabditis elegans and the larvae of the animal parasites Toxocara canis, Ascaris suum, Ancylostoma caninum, and Trichuris suis. Compounds 1 – 13, mainly representing ellagitannins, were isolated using different chromatographic methods, and their structures were elucidated by HR-MS and 1H/13C-NMR. AWE exerted concentration-dependent lethal effects (LC50 of 2.6 mg/mL) against C. elegans and inhibited larval migration of all animal parasites tested (T. suis L1 IC50 24.3 µg/mL, A. suum L3 IC50 35.7 µg/mL, A. caninum L3 IC50 112.8 µg/mL, T. canis L3 IC50 1513.2 µg/mL). The anthelmintic activity of AWE was mainly related to the polar, tannin-containing fractions. Geraniin 1, the major ellagitannin in the extract, showed the strongest anthelmintic activity in general (IC50 between 0.6 and 804 µM, depending on parasite species) and was the only compound active against A. caninum (IC50 of 35.0 µM). Furosin 9 was least active despite structural similarities to 1. Among the parasites tested, Trichuris suis L1 larvae turned out to be most sensitive with IC50 of 0.6, 6.4, 4.0, 4.8, and 2.6 µM for geraniin 1, repandusinic acid A 3, punicafolin 8, furosin 9, and phyllanthusiin A 10, respectively.
* Contributed equally, shared senior authorship.
Supporting Information
- Ergänzendes Material
Supplementary data indicate details of the fractionation procedure and of the plant material.
Publikationsverlauf
Eingereicht: 17. März 2023
Angenommen nach Revision: 20. Juni 2023
Artikel online veröffentlicht:
17. Juli 2023
© 2023. Thieme. All rights reserved.
Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany