A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa

Abstract Background In sub-Saharan Africa (SSA), significant morbidity and mortality have been linked to diarrhea, which is frequently caused by microorganisms. A rise in antimicrobial-resistant pathogens has reignited the search for alternative therapies. This scoping review aims to map the literat...

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Main Authors: Moitshepi T. A. Plaatjie, ThankGod E. Onyiche, Tsepo Ramatla, Johannes J. Bezuidenhout, Lesetja Legoabe, Nthatisi I. Nyembe, Oriel Thekisoe
Format: Article
Language:English
Published: BMC 2024-01-01
Series:Tropical Medicine and Health
Subjects:
Online Access:https://doi.org/10.1186/s41182-023-00569-x
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author Moitshepi T. A. Plaatjie
ThankGod E. Onyiche
Tsepo Ramatla
Johannes J. Bezuidenhout
Lesetja Legoabe
Nthatisi I. Nyembe
Oriel Thekisoe
author_facet Moitshepi T. A. Plaatjie
ThankGod E. Onyiche
Tsepo Ramatla
Johannes J. Bezuidenhout
Lesetja Legoabe
Nthatisi I. Nyembe
Oriel Thekisoe
author_sort Moitshepi T. A. Plaatjie
collection DOAJ
description Abstract Background In sub-Saharan Africa (SSA), significant morbidity and mortality have been linked to diarrhea, which is frequently caused by microorganisms. A rise in antimicrobial-resistant pathogens has reignited the search for alternative therapies. This scoping review aims to map the literature on medicinal plants in relation to their anti-diarrheal potential from SSA. Methods Studies published from 1990 until April 2022 on medicinal plants used for the treatment of diarrhea from each country in SSA were searched on Scopus, Web of Science, Science Direct and PubMed. The selection of articles was based on the availability of data on the in vitro and/or in vivo, ethnobotanical, and cross-sectional studies on the efficacy of medicinal plants against diarrhea. A total of 67 articles (ethnobotanical (n = 40); in vitro (n = 11), in vivo (n = 7), cross-sectional (n = 3), in vitro and in vivo (n = 2) and ethnobotanical and in vitro (n = 2), were considered for the descriptive analysis, which addressed study characteristics, herbal intervention information, phytochemistry, outcome measures, and toxicity findings. Results A total of 587 different plant species (from 123 families) used for diarrhea treatment were identified. Most studies were conducted on plants from the Fabaceae family. The plants with the strongest antimicrobial activity were Indigofera daleoides and Punica granatum. Chromatographic methods were used to isolate six pure compounds from ethyl acetate extract of Hydnora johannis, and spectroscopic methods were used to determine their structures. The majority of anti-diarrheal plants were from South Africa (23.9%), Ethiopia (16.4%), and Uganda (9%). This study highlights the value of traditional remedies in treating common human diseases such as diarrhea in SSA. Conclusion Baseline knowledge gaps were identified in various parts of SSA. It is therefore recommended that future ethnobotanical studies document the knowledge held by other countries in SSA that have so far received less attention. Additionally, we recommend that future studies conduct phytochemical investigations, particularly on the widely used medicinal plants for the treatment of diarrheal illnesses, which can serve as a foundation for future research into the development of contemporary drugs.
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spelling doaj.art-6c9c69437e90427082b33fa9c5ef066f2024-01-07T12:47:43ZengBMCTropical Medicine and Health1349-41472024-01-0152111910.1186/s41182-023-00569-xA scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan AfricaMoitshepi T. A. Plaatjie0ThankGod E. Onyiche1Tsepo Ramatla2Johannes J. Bezuidenhout3Lesetja Legoabe4Nthatisi I. Nyembe5Oriel Thekisoe6Unit for Environmental Sciences and Management, North-West UniversityDepartment of Veterinary Parasitology and Entomology, University of MaiduguriUnit for Environmental Sciences and Management, North-West UniversityUnit for Environmental Sciences and Management, North-West UniversityPharmaceutical Chemistry, School of Pharmacy, North-West UniversityDepartment of Zoology and Entomology, University of the Free StateUnit for Environmental Sciences and Management, North-West UniversityAbstract Background In sub-Saharan Africa (SSA), significant morbidity and mortality have been linked to diarrhea, which is frequently caused by microorganisms. A rise in antimicrobial-resistant pathogens has reignited the search for alternative therapies. This scoping review aims to map the literature on medicinal plants in relation to their anti-diarrheal potential from SSA. Methods Studies published from 1990 until April 2022 on medicinal plants used for the treatment of diarrhea from each country in SSA were searched on Scopus, Web of Science, Science Direct and PubMed. The selection of articles was based on the availability of data on the in vitro and/or in vivo, ethnobotanical, and cross-sectional studies on the efficacy of medicinal plants against diarrhea. A total of 67 articles (ethnobotanical (n = 40); in vitro (n = 11), in vivo (n = 7), cross-sectional (n = 3), in vitro and in vivo (n = 2) and ethnobotanical and in vitro (n = 2), were considered for the descriptive analysis, which addressed study characteristics, herbal intervention information, phytochemistry, outcome measures, and toxicity findings. Results A total of 587 different plant species (from 123 families) used for diarrhea treatment were identified. Most studies were conducted on plants from the Fabaceae family. The plants with the strongest antimicrobial activity were Indigofera daleoides and Punica granatum. Chromatographic methods were used to isolate six pure compounds from ethyl acetate extract of Hydnora johannis, and spectroscopic methods were used to determine their structures. The majority of anti-diarrheal plants were from South Africa (23.9%), Ethiopia (16.4%), and Uganda (9%). This study highlights the value of traditional remedies in treating common human diseases such as diarrhea in SSA. Conclusion Baseline knowledge gaps were identified in various parts of SSA. It is therefore recommended that future ethnobotanical studies document the knowledge held by other countries in SSA that have so far received less attention. Additionally, we recommend that future studies conduct phytochemical investigations, particularly on the widely used medicinal plants for the treatment of diarrheal illnesses, which can serve as a foundation for future research into the development of contemporary drugs.https://doi.org/10.1186/s41182-023-00569-xMedicinal plantsSub-Saharan AfricaDiarrheaScoping reviewEthnobotanicals
spellingShingle Moitshepi T. A. Plaatjie
ThankGod E. Onyiche
Tsepo Ramatla
Johannes J. Bezuidenhout
Lesetja Legoabe
Nthatisi I. Nyembe
Oriel Thekisoe
A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
Tropical Medicine and Health
Medicinal plants
Sub-Saharan Africa
Diarrhea
Scoping review
Ethnobotanicals
title A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
title_full A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
title_fullStr A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
title_full_unstemmed A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
title_short A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa
title_sort scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub saharan africa
topic Medicinal plants
Sub-Saharan Africa
Diarrhea
Scoping review
Ethnobotanicals
url https://doi.org/10.1186/s41182-023-00569-x
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