Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon

Background: The evaluation of medicinal plants’ toxicity is a prerequisite prior to their usage. The vertebrate models used for this purpose are often the object of ethical consideration. Though invertebrate models including Galleria mellonella (GM) have demonstrated the ability to be used to assess...

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Main Authors: Mbarga Manga Joseph Arsene, Podoprigora Irina Viktorovna, Anyutoulou Kitio Linda Davares
Format: Article
Language:English
Published: Tripoli University 2021-11-01
Series:Open Veterinary Journal
Subjects:
Online Access:https://www.openveterinaryjournal.com/OVJ-2021-07-139%20M.M.J.%20Arsene%20et%20al.pdf
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author Mbarga Manga Joseph Arsene
Podoprigora Irina Viktorovna
Anyutoulou Kitio Linda Davares
author_facet Mbarga Manga Joseph Arsene
Podoprigora Irina Viktorovna
Anyutoulou Kitio Linda Davares
author_sort Mbarga Manga Joseph Arsene
collection DOAJ
description Background: The evaluation of medicinal plants’ toxicity is a prerequisite prior to their usage. The vertebrate models used for this purpose are often the object of ethical consideration. Though invertebrate models including Galleria mellonella (GM) have demonstrated the ability to be used to assess the toxicity of various products. To our knowledge, GM has never been exploited to determine the toxicity of medicinal plants. Aim: The aim of this study was to demonstrate the potential of GM larvae as a simple, inexpensive and rapid model for the evaluation of the toxicity of herbal medicines. Method: In this study, the toxicity of aqueous and ethanolic (80%, v/v) extracts of seven (7) well known plants from Cameroon namely leaves of Cymbopogon citratus (DC.) Stapf, Moringa oleifera Lam and Vernonia amygdalina Delile; barks of Cinchona officinalis and Enantia chlorantha Oliv; barks and seeds of Garcinia lucida Vesque and leaves and seeds of Azadirachta indica (Neem) was evaluated using the larval form of GM. The median lethal doses (LD50), 90% lethal doses (LD90) and 100% lethal doses (LD100) were determined using the spline cubic survival curves and equations from the data obtained on the survival rate of G. mellonella 24h after the injection with the extracts. Results: We found that distilled water extracted a more important mass of phytochemical compounds (7.4-21.2%) compared to ethanolic solution (5.8-12.4%). Lethal doses varied depending on the plant materials and ethanolic extracts (HAE) were more toxic to GM than aqueous ones. The LD50 (mg/ml) of the tested extracts varied from 4.87 (3.90 g/kg bw (body weight)) to >200 (> 166.67 g/kg bw), the LD90 (mg/ml) from 25.00 (18.52 g/kg bw) to >200 (> 181.82 g/kg bw) and LD100 (mg/ml) from 45.00 (40.91 g/kg bw) to > 200 (>181.82 g/kg bw). The HAE of A. indica seed and C. officinalis bark exhibited the highest toxicity with LD50 (g/kg bw) of 3.90 and 4.81 respectively. Conclusion: The results obtained in this study suggest that G. mellonella can be used as a sensitive, reliable, and robust eco-friendly model to gauge the toxicity of medicinal plants. Thus, avoid the sacrifice of vertebrate models often used for this purpose to limit ethical concerns.
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spelling doaj.art-28c6f9e877ad4b1b8d580e9ec3a6415b2022-12-21T23:14:58ZengTripoli UniversityOpen Veterinary Journal2226-44852218-60502021-11-0111465166110.5455/OVJ.2021.v11.i4.15Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from CameroonMbarga Manga Joseph Arsene0https://orcid.org/0000-0001-9626-9247Podoprigora Irina Viktorovna1https://orcid.org/0000-0003-4099-2967Anyutoulou Kitio Linda Davares2https://orcid.org/0000-0001-6219-0004Department of Microbiology and Virology, Institute of Medicine, RUDN University, Moscow, RussiaDepartment of Microbiology and Virology, Institute of Medicine, RUDN University, Moscow, RussiaDepartment of Microbiology and Virology, Institute of Medicine, RUDN University, Moscow, RussiaBackground: The evaluation of medicinal plants’ toxicity is a prerequisite prior to their usage. The vertebrate models used for this purpose are often the object of ethical consideration. Though invertebrate models including Galleria mellonella (GM) have demonstrated the ability to be used to assess the toxicity of various products. To our knowledge, GM has never been exploited to determine the toxicity of medicinal plants. Aim: The aim of this study was to demonstrate the potential of GM larvae as a simple, inexpensive and rapid model for the evaluation of the toxicity of herbal medicines. Method: In this study, the toxicity of aqueous and ethanolic (80%, v/v) extracts of seven (7) well known plants from Cameroon namely leaves of Cymbopogon citratus (DC.) Stapf, Moringa oleifera Lam and Vernonia amygdalina Delile; barks of Cinchona officinalis and Enantia chlorantha Oliv; barks and seeds of Garcinia lucida Vesque and leaves and seeds of Azadirachta indica (Neem) was evaluated using the larval form of GM. The median lethal doses (LD50), 90% lethal doses (LD90) and 100% lethal doses (LD100) were determined using the spline cubic survival curves and equations from the data obtained on the survival rate of G. mellonella 24h after the injection with the extracts. Results: We found that distilled water extracted a more important mass of phytochemical compounds (7.4-21.2%) compared to ethanolic solution (5.8-12.4%). Lethal doses varied depending on the plant materials and ethanolic extracts (HAE) were more toxic to GM than aqueous ones. The LD50 (mg/ml) of the tested extracts varied from 4.87 (3.90 g/kg bw (body weight)) to >200 (> 166.67 g/kg bw), the LD90 (mg/ml) from 25.00 (18.52 g/kg bw) to >200 (> 181.82 g/kg bw) and LD100 (mg/ml) from 45.00 (40.91 g/kg bw) to > 200 (>181.82 g/kg bw). The HAE of A. indica seed and C. officinalis bark exhibited the highest toxicity with LD50 (g/kg bw) of 3.90 and 4.81 respectively. Conclusion: The results obtained in this study suggest that G. mellonella can be used as a sensitive, reliable, and robust eco-friendly model to gauge the toxicity of medicinal plants. Thus, avoid the sacrifice of vertebrate models often used for this purpose to limit ethical concerns.https://www.openveterinaryjournal.com/OVJ-2021-07-139%20M.M.J.%20Arsene%20et%20al.pdfmedicinal plantsgreater wax mothgalleria mellonellainsect modeltoxicity
spellingShingle Mbarga Manga Joseph Arsene
Podoprigora Irina Viktorovna
Anyutoulou Kitio Linda Davares
Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
Open Veterinary Journal
medicinal plants
greater wax moth
galleria mellonella
insect model
toxicity
title Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
title_full Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
title_fullStr Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
title_full_unstemmed Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
title_short Galleria mellonella (greater wax moth) as an eco-friendly in vivo approach for the assessment of the acute toxicity of medicinal plants: Application to some plants from Cameroon
title_sort galleria mellonella greater wax moth as an eco friendly in vivo approach for the assessment of the acute toxicity of medicinal plants application to some plants from cameroon
topic medicinal plants
greater wax moth
galleria mellonella
insect model
toxicity
url https://www.openveterinaryjournal.com/OVJ-2021-07-139%20M.M.J.%20Arsene%20et%20al.pdf
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