Toxicity of plant extracts containing pyrrolizidine alkaloids using alternative invertebrate models


Pyrrolizidine alkaloids (PAs) are a widespread class of hepatotoxic heterocyclic organic compounds found in approximately 3% of world flora. Some PAs have been shown to have genotoxic and carcinogenic effects. The present study focuses on the toxicity effects of four dry extracts obtained from medicinal plants (Senecio vernalis, Symphytum officinale, Petasites hybridus and Tussilago farfara), on two aquatic organisms, Artemia salina and Daphnia magna, and the correlation with their PAs content. A new GC‑MS method, using a retention time (TR)‑5MS type capillary column was developed. PAs Kovats retention indices, for this type of column were computed for the first time. The lethal dose 50% (LC50) values for the two invertebrate models were correlated (Pearson 's coefficient, >0.9) and the toxicity was PA concentration-dependent, for three of the four extracts. All tested extracts were found to be toxic in both aquatic organism models. The results can be used to develop a GC‑MS validated method for the assay of PAs in medicinal plants with a further potential application in the risk assessment study of PAs toxicity in humans.

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Divisions: College of Health & Life Sciences > Aston Pharmacy School
College of Health & Life Sciences > Chronic and Communicable Conditions
College of Health & Life Sciences
College of Health & Life Sciences > School of Biosciences > Cellular and Molecular Biomedicine
Additional Information: © Seremet et al. This is an open access article distributed under the terms of Creative Commons Attribution License. Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) The authors acknowledge the financial support offered by UEFISCDI (Romania ‑ grant no. 8BM/2016) and NRF (South Africa), through the Romania ‑ South Africa Joint Collaboration.
Publication ISSN: 1791-3004
Last Modified: 27 May 2024 07:23
Date Deposited: 05 Apr 2018 07:55
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Related URLs: ... 2/mmr.2018.8795 (Publisher URL)
PURE Output Type: Article
Published Date: 2018-06
Published Online Date: 2018-03-27
Accepted Date: 2018-03-26
Authors: Seremet, Oana
Olaru, Octavian
Gutu, Claudia
Nitulescu, George
Ilie, Mihaela
Negres, Simona
Zbarcea, Cristina
Purdel, Carmen
Spandidos, Demetrios
Tsatsakis, Aristides
Coleman, Michael (ORCID Profile 0000-0002-5510-6852)
Margina, Denisa

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