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Tchankoni MK, Togan RM, Abalo GA, Adoli LK, Walla A, Dosseh DE, Tchangaï B, Preux PM, Aboyans V, Ekouevi DK. Epidemiology of Non-Traumatic Lower Extremities Amputations in West Africa: Nationwide Data from Togo. Eur J Vasc Endovasc Surg 2024; 67:959-968. [PMID: 38320645 DOI: 10.1016/j.ejvs.2024.01.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 12/22/2023] [Accepted: 01/30/2024] [Indexed: 02/08/2024]
Abstract
OBJECTIVE Non-traumatic lower limb amputation (NT-LLA) has consequences at individual and public health levels. Population based studies in sub-Saharan Africa are scarce and often related to single centre series. This study aimed to estimate the incidence of NT-LLA (minor and major) and to describe epidemiological, clinical, and prognostic aspects in Togo. METHODS This was a population based observational study conducted among all patients who underwent NT-LLA. Traumatic amputations were excluded. Sociodemographic, clinical, and work up data were collected from clinical files in any Togolese health centre from 1 January 2016 to 31 December 2021. Incidence rates were adjusted for age. RESULTS Over the six year period, 352 patients (59% males) underwent NT-LLA (mean ± standard deviation age 60 ± 15.7 years). The average age adjusted incidence rate of NT-LLA was 8.5 per million/year (95% confidence interval [CI] 7.6 - 9.4). Men were 1.7 times more likely to undergo a NT-LLA than women. The relative risk of NT-LLA was 48 times higher in patients with diabetes than in patients without diabetes. Around 61.0% of the NT-LLAs occurred within the 50 - 74 age group and 54.3% had diabetes mellitus. Among amputees, 54.5% had a diagnosis of peripheral artery disease (PAD) and 52.8% had diabetic ulcers, with co-existence of several factors. Less than 5% of participants had a history of smoking tobacco. Average length of hospital stay was 12 days. The in hospital mortality rate was 8.8% (9.0% for major, 6.7% for minor amputations). Only 18.2% had duplex ultrasound performed and 1.7% angiography prior to amputation. No patient underwent vascular intervention prior to amputation. CONCLUSION This is the first study to report nationwide and contemporary epidemiological data on NT-LLAs in West Africa, highlighting several specificities. Large scale interventions are needed to ameliorate the care of diabetes and PAD and improve facilities for optimal management of patients at risk of amputation in Africa.
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Affiliation(s)
- Martin K Tchankoni
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of Chronic Diseases In Tropical Zone, Institute of Epidemiology and Tropical Neurology, Omega Health, Limoges, France; Public Health Department, Faculty of Health Sciences, University of Lomé, Togo; African Research Centre in Epidemiology and Public Health (CARESP), Lomé, Togo
| | - Roméo M Togan
- Public Health Department, Faculty of Health Sciences, University of Lomé, Togo
| | - Grégoire A Abalo
- Traumatology-Orthopedics Department of the Sylvanus Olympio University Hospital (CHU) of Lomé, Faculty of Health Sciences of the University of Lomé, Lomé, Togo
| | - Latame K Adoli
- Public Health Department, Faculty of Health Sciences, University of Lomé, Togo
| | - Atchi Walla
- Department of Orthopaedics, Campus Medical Teaching Hospital, Lomé, Togo
| | - David E Dosseh
- Department of General Surgery, Faculty of Health Sciences, University of Lomé, Lomé, Togo
| | - Boyodi Tchangaï
- Department of Visceral Surgery, University Teaching Hospital, Lomé, Togo
| | - Pierre-Marie Preux
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of Chronic Diseases In Tropical Zone, Institute of Epidemiology and Tropical Neurology, Omega Health, Limoges, France
| | - Victor Aboyans
- Inserm U1094, IRD U270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of Chronic Diseases In Tropical Zone, Institute of Epidemiology and Tropical Neurology, Omega Health, Limoges, France; Department of Cardiology, Dupuytren-2 University Hospital, Limoges, France.
| | - Didier K Ekouevi
- Public Health Department, Faculty of Health Sciences, University of Lomé, Togo; African Research Centre in Epidemiology and Public Health (CARESP), Lomé, Togo
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Moyo PN, van Heerden FR. An imprecise probability approach-based determination of over-represented southern African plant genera and families used in ethnopharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117757. [PMID: 38219881 DOI: 10.1016/j.jep.2024.117757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The analyses of patterns of over-representation of southern African traditional medicinal plants at the genus and family level provide information about the differences in plant use among southern African countries and disease categories. 'Over-representation' refers to the phenomenon whereby the proportion of plants belonging to a taxonomic group is higher in ethnobotanical pharmacopoeia than in the total flora. AIM OF THE STUDY This study aimed to use the Imprecise Dirichlet Model (IDM) to analyse data from ten southern African countries to establish how over-represented medicinal plant families compare with over-represented genera, how over-represented medicinal taxa differ among countries in this region of Africa, and how over-represented taxa differ among six major disease categories. MATERIALS AND METHODS Floral data for the total species composition of each country were obtained from online databases. Medicinal plant species lists were generated from published surveys, inventories, and books. IDM calculations were executed using the inverse of the cumulative beta probability density function in Microsoft Excel™. Python programming language source code was used to calculate Pearson correlation (r) values and Jaccard coefficients (J). RESULTS Nine of forty-two over-represented medicinal plant families in southern Africa (group 1) do not have over-represented genera. Seven of the forty genera with the highest margins of over-representation belong to under-represented families. Nineteen of the forty-two over-represented families have margins of over-representation smaller than the cumulative margins of their over-represented genera. Groups of countries with similar overall flora (J ≥ 0.333) are Botswana and Namibia (group 2), Malawi, Mozambique, Zambia and Zimbabwe (group 3). The families and genera with the highest margins of over-representation are Loganiaceae and Albizia in group 1, Combretaceae and Vachellia in group 2, Dioscoreaceae and Senna in group 3, and Sapotaceae and Solanum in group 4 (South Africa). The families and genera with the highest margins of over-representation across disease categories are Ebenaceae and Albizia, Canellaceae and Dicoma, Combretaceae and Pterocelastrus, Ebenaceae and Bersama, Francoaceae and Erythrina, and Aristolochiaceae and Strychnos for plants used in the treatment of STIs, febrile and mosquito-vector diseases, microbial infections, pain, skin conditions, and female sexual/reproductive problems, respectively. CONCLUSIONS Genus-level calculations are more efficient in generating taxonomic lists that can be used for ethnopharmacological investigations due to the exclusion of under-represented genera. Limiting the size of geographical areas from which medicinal plant lists are sampled and targeting plants used to treat specific types of disease prevents the underestimation of niche over-represented taxa.
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Affiliation(s)
- Prince N Moyo
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa.
| | - Fanie R van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa.
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Khumalo GP, Loa-Kum-Cheung W, Van Wyk BE, Feng Y, Cock IE. Leaf extracts of eight selected southern African medicinal plants modulate pro-inflammatory cytokine secretion in LPS-stimulated RAW 264.7 macrophages. Inflammopharmacology 2024; 32:1607-1620. [PMID: 38310564 PMCID: PMC11006729 DOI: 10.1007/s10787-023-01420-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/22/2023] [Indexed: 02/06/2024]
Abstract
This study investigates the anti-inflammatory properties of extracts prepared from the leaves of eight southern African medicinal plants used traditionally to treat inflammation and pain. The inhibitory effect of aqueous and ethanol extracts on the release of pro-inflammatory cytokines was determined in lipopolysaccharide (LPS) stimulated and unstimulated RAW 264.7 murine macrophage cells. The levels of interleukin (IL)-1β, IL-6, tumour necrosis factor-α (TNF-α), interferon-gamma (IFN-γ), monocyte chemoattractant protein 1 (MCP-1) and macrophage inflammatory protein (MIP)-2 release were determined using cytokine multiplex-bead assays. The ethanol extracts of Melianthus comosus Vahl (commonly known as honey flower), Tetradenia riparia (Hochst.) Codd (misty plume bush) and Warburgia salutaris (G. Bertol.) Chiov. (pepper-bark tree), demonstrated the most significant inhibitory activity, with over 50-fold inhibition of IL-1β, IL-6 and TNF-α levels in LPS-stimulated RAW 264.7 macrophages. The aqueous extract of M. comosus also significantly inhibited the secretion of all the tested cytokines and chemokines. Phytochemical investigation of M. comosus ethanol leaf extract using ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLC-HRMS) led to the detection of crassolide, deoxylimonoic acid D-ring-lactone, 2-hydroxynonanoic acid and 5-noniloxytryptamine. To the best of our knowledge, the cytokine inhibition properties of most of the medicinal plants screened in this study are reported for the first time. Our results support the use of southern African medicinal plants as anti-inflammatory remedies and provide an insight into the immunomodulatory mechanisms of action.
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Affiliation(s)
- Gugulethu P Khumalo
- Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
| | - Wendy Loa-Kum-Cheung
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, QLD, 4111, Australia
| | - Ben-Erik Van Wyk
- Department of Botany and Plant Biotechnology, University of Johannesburg, Auckland Park, P.O. Box 524, Johannesburg, 2006, South Africa
| | - Yunjiang Feng
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, QLD, 4111, Australia
| | - Ian E Cock
- Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia.
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia.
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Ramadwa TE, Meddows-Taylor S. Traditional Uses, Pharmacological Activities, and Phytochemical Analysis of Diospyros mespiliformis Hochst. ex. A. DC (Ebenaceae): A Review. Molecules 2023; 28:7759. [PMID: 38067488 PMCID: PMC10708241 DOI: 10.3390/molecules28237759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Diospyros mespiliformis Hochst. ex. A. DC is widely distributed throughout Africa and around the world. It is utilized ethnobotanically to treat fevers, wounds, malaria, diabetes mellitus, and other diseases. This review aims to provide an exhaustive overview of the traditional uses, pharmacology, and phytochemical analysis of D. mespiliformis, with the objective of identifying its therapeutic potential for further research. Scientific resources, including Google Scholar, Science Direct, Web of Science, Pub Med, and Scopus, were used to find pertinent data on D. mespiliformis. Secondary metabolites tentatively identified from this species were primarily terpenoids, naphthoquinones, phenolics, and coumarins. D. mespiliformis has been reported to demonstrate pharmacological activities, including antimicrobial, antiproliferative, antiparasitic, antioxidant, anti-inflammatory, antiviral, anti-hypersensitivity, and antidiabetic properties. The phytochemicals and extracts from D. mespiliformis have been reported to have some pharmacological effects in in vivo studies and were not toxic to the animal models that were utilized. The D. mespiliformis information reported in this review provides researchers with a comprehensive summary of the current research status of this medicinal plant and a guide for further investigation.
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Affiliation(s)
- Thanyani Emelton Ramadwa
- Department of Life and Consumer Sciences, College of Agriculture and Environmental Sciences, Florida Campus, University of South Africa, Private Bag X6, Florida 1710, South Africa;
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Aron MB, Mulwafu M, Mailosi B, Kreuels B, Dullie L, Kachimanga C, Blessmann J, Ndarama E, Sambani C, Munyaneza F, Rosenthal A. Experiences and practices of traditional healers on snakebite treatment and prevention in rural Malawi. PLoS Negl Trop Dis 2023; 17:e0011653. [PMID: 37792697 PMCID: PMC10550111 DOI: 10.1371/journal.pntd.0011653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/11/2023] [Indexed: 10/06/2023] Open
Abstract
Snakebite envenoming remains a public health threat in many tropical countries including Malawi. Traditional healers (THs) have been consulted by victims of snakebites as primary caregivers for millennia. There are no studies in Malawi to understand this phenomenon, therefore, our study aimed to explore the experiences and practices of THs regarding snakebite treatment and prevention in rural Malawi. Between August and September 2022, we conducted semi-structured interviews with 16 THs who were purposefully selected from various locations across Neno District, Malawi. We analysed the interview data using Dedoose software, where we generated codes and grouped them into themes. Out of the 16 THs interviewed, 68.8% (n = 11) were male, and 43.8% were aged between 40 and 60 years. Our study identified five themes: THs' knowledge of snakes and treatment, the continuum of care they provide, payment procedures, snakebite prevention, and their relationship with health facilities. They claimed a good understanding of the snakes in their area, including the seasons with more snakebites, and were confident in their ability to provide treatment, however, this was not scientifically proven. They offered a comprehensive care package, including diagnosis, first aid, main treatment, and follow-up care to monitor the victim's condition and adjust treatment as needed. THs provide free treatment for snakebites or use a "pay later" model of service delivery. All THs claimed a "vaccine" for snakebites that could prevent bites or neutralize the venom. However, no formal relationship existed between THs and Health Care Workers (HCWs). We recommend collaboration between HCWs and THs, establishing clear referral pathways for snakebite victims and educating THs on identifying danger signs requiring prompt referral to healthcare facilities.
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Affiliation(s)
- Moses Banda Aron
- Partners In Health / Abwenzi Pa Za Umoyo, Neno, Malawi
- Research Group Snakebite Envenoming, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | | | - Benno Kreuels
- Research Group Snakebite Envenoming, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
- Section for Tropical Medicine, I. Department of Medicine, University Medical Center Hamburg, Germany
| | | | | | - Jörg Blessmann
- Research Group Snakebite Envenoming, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Enoch Ndarama
- Neno District Health Office, Ministry of Health, Neno, Malawi
| | - Clara Sambani
- Department of Research, Ministry of Health, Lilongwe, Malawi
| | | | - Anat Rosenthal
- Department of Health Policy and Management, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
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Ikinyom N, Lamwaka AV, Malagala AT, Ndyomugyenyi EK. Ethnobotanical study of nutraceutical plants used to manage opportunistic infections associated with HIV/AIDS in Acholi sub-region, Northern Uganda. Trop Med Health 2023; 51:50. [PMID: 37658427 PMCID: PMC10472741 DOI: 10.1186/s41182-023-00540-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 08/19/2023] [Indexed: 09/03/2023] Open
Abstract
BACKGROUND Nutraceutical plants play a potential role as supportive treatment with antiretroviral drugs in the management of opportunistic infections associated with HIV/AIDS. There is limited documentation of nutraceutical plants in Northern Uganda and limited literature addressing processes to be adopted for quality assurance of herbal formulations in Uganda. This study aimed to document plant species with nutritional and medicinal properties used for managing opportunistic infections associated with HIV/AIDS by traditional medicine practitioners (TMPs), who included professional herbalists, herbal farmers and herbal sellers in Acholi sub region, Northern Uganda. METHODS An ethnobotanical study was carried out in Amuru, Gulu and Pader districts, Northern Uganda. Cross-sectional data were collected using purposive and snowball sampling techniques. A total of four hundred (378 women and 22 men) informants were selected. Data were collected using semistructured interviews, focus group discussions and direct observation. Data were analysed using descriptive statistics, familiarity index (FI), fidelity level (FL) and informant consensus factor (ICF). RESULTS This study recorded a total of 84 nutraceutical plant species, which are used to manage opportunistic infections associated with HIV/AIDS. Most abundant families were Leguminoceae, Asteraceae and Solanaceae. Six nutraceutical plants that had higher fidelity level and familiarity index values included Momordica foetida Schumach, Erigeron floribundus (Kunth) Sch. Bip, Mangifera indica L, Cajanus cajan L. Millsp, Eucalyptus globulus Labill and Cucurbita pepo L. Respondents' knowledge on nutraceutical plants had a positive significant correlation with age (R2 = 0.0524, p ≤ 0.01). The popular mode of preparation are decoctions/boiling in water (70%), while the most used route of administration is oral (76%). TMPs tried to ensure that during collection and processing, plant materials were free from contamination. TMPs reported limited knowledge on preservation techniques. CONCLUSIONS This study demonstrates the availability and diversity of nutraceutical plants in Uganda and reports methods of processing and administration used by TMPs. Both men and women used nutraceutical plants to manage opportunistic infections associated with HIV/AIDS and showed great extent of their traditional knowledge. Most of the nutraceutical plants in study area are wild and abundant; however, high percentage use of plant roots and bark threatens the sustainable use from the wild.
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Affiliation(s)
- Norah Ikinyom
- Department of Environment, Faculty of Agriculture and Environment, Gulu University, P.O. Box 166, Gulu, Uganda.
| | - Alice Veronica Lamwaka
- Department of Pharmacology, Faculty of Medicine, Gulu University, P.O. Box 166, Gulu, Uganda
| | | | - Elly Kurobuza Ndyomugyenyi
- Department of Animal Production and Range Management, Faculty of Agriculture and Environment, Gulu University, P.O.Box 166, Gulu, Uganda
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Richard K, Andrae-Marobela K, Tietjen I. An ethnopharmacological survey of medicinal plants traditionally used by the BaKalanga people of the Tutume subdistrict in Central Botswana to manage HIV/AIDS, HIV-associated conditions, and other health conditions. JOURNAL OF ETHNOPHARMACOLOGY 2023:116759. [PMID: 37301306 DOI: 10.1016/j.jep.2023.116759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/21/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE While access to antiretroviral therapy (ART) continues to improve worldwide, HIV infection and AIDS persist as serious health challenges, particularly in sub-Saharan Africa. Complementary and Alternative Medicines (CAM), as part of indigenous and pluralistic medical systems, are important contributors to primary health care worldwide. However, this knowledge remains relatively undocumented in many parts of sub-Saharan Africa such as the Tutume subdistrict of Central Botswana, where CAM is widely used including potentially for HIV/AIDS and HIV-associated conditions. AIM OF THE STUDY To explore the extent to which CAM is used by the BaKalanga Peoples of the Tutume subdistrict, we performed an exploratory community-based project to record medicinal plant use from this relatively undocumented region, with a particular focus on species used for management of HIV/AIDS and HIV-associated conditions. MATERIALS AND METHODS Using the snowball sampling technique, we recruited 13 Traditional Health Practitioners (THPs) and conducted in-depth interviews to explore medicinal plant uses and treatment regimens. Plant specimens were collected and bio-authenticated. RESULTS We documented 83 plant species used as CAM to treat or manage a variety of conditions including HIV/AIDS, HIV-associated conditions, and other health conditions. Plants from the family Leguminosae were most frequently reported, comprising 21 species (25.3%), followed by 5 from both Euphorbiaceae and Combretaceae families (6.0%). Four plants (4.8%) were used specifically to manage HIV (Lannea edulis (Sond.) Engl. root, Aloe zebrina Baker root, Myrothamnus flabellifolia Welw. whole plant, and Harpagophytum procumbens var. subulobatum (Engl.) tuber), while an additional 7 (8.4%) were reported specifically for treating combinations of HIV-related symptoms. Notably, 25 (30.1%) have not been reported previously as CAM and/or lack reported bioactivity data. CONCLUSIONS To our knowledge, this is the first detailed ethnobotanical survey of CAM used by the BaKalanga Peoples of the Tutume subdistrict to manage HIV/AIDS and HIV-associated and other health conditions.
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Affiliation(s)
- Khumoekae Richard
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada; The Wistar Institute, 3601 Spruce Street, Philadelphia, PA, 19104, USA.
| | - Kerstin Andrae-Marobela
- Department of Biological Sciences, University of Botswana, Block 235/217, Gaborone, Botswana; Center for Scientific Research, Indigenous Knowledge & Innovation (CesrIKi), PO Box 70237, Gaborone, Botswana.
| | - Ian Tietjen
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada; The Wistar Institute, 3601 Spruce Street, Philadelphia, PA, 19104, USA.
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Maroyi A. Medicinal Uses of the Fabaceae Family in Zimbabwe: A Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:1255. [PMID: 36986943 PMCID: PMC10051751 DOI: 10.3390/plants12061255] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
The current study is aimed at providing a systematic review of the ethnomedicinal, phytochemical and pharmacological properties of Fabaceae species used as sources of traditional medicinies in Zimbabwe. Fabaceae is one of the well-known plant families of ethnopharmacological importance. Of the approximately 665 species of the Fabaceae family occurring in Zimbabwe, about 101 are used for medicinal purposes. Many communities in the country, mainly in peri-urban, rural and marginalized areas with limited access to healthcare facilities, rely on traditional medicines as their primary healthcare. The study reviewed research studies undertaken on Zimbabwe's Fabaceae species during 1959 to 2022. Information was gathered from literature sourced from Google Scholar, Science Direct, Scopus, PubMed, books, dissertations, theses and scientific reports. This study showed that 101 species are traditionally used to manage human and animal diseases in Zimbabwe. The genera with the highest number of medicinal uses are Indigofera, Senna, Albizia, Rhynchosia and Vachellia. Species of these genera are used as traditional medicines against 134 medical conditions, mainly gastrointestinal conditions, female reproductive conditions, respiratory conditions and sexually transmitted infections. Shrubs (39.0%), trees (37.0%) and herbs (18.0%) are the primary sources of traditional medicines, while roots (80.2%), leaves (36.6%), bark (27.7%) and fruits (8.9%) are the most widely used plant parts. Many of Zimbabwe's Fabaceae species used as sources of traditional medicines have been assessed for their phytochemical and pharmacological properties, corroborating their medicinal uses. However, there is a need to unravel the therapeutic potential of the family through further ethnopharmacological research focusing on toxicological studies, in vitro and in vivo models, biochemical assays and pharmacokinetic studies.
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Affiliation(s)
- Alfred Maroyi
- Department of Botany, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa
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Exploring Knowledge about Fang Traditional Medicine: An Informal Health Seeking Behaviour for Medical or Cultural Afflictions in Equatorial Guinea. Healthcare (Basel) 2023; 11:healthcare11060808. [PMID: 36981465 PMCID: PMC10048063 DOI: 10.3390/healthcare11060808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
This study explores a range of informal health-seeking behaviors, including the use of Fang Traditional Medicine (FTM) for medical or cultural afflictions in Equatorial Guinea (EQ), the therapeutic methods used, the health problems handled, the learning process, traditional medicine user profiles and the social images of Fang Traditional Healers (FTHs). Ethnography was employed as a qualitative strategy using emic–etic approaches. Semi-structured interviews were conducted with 45 individuals, including 6 community leaders, 19 tribal elders, 7 healthcare professionals, 11 FTHs and 2 relatives of traditional healers in 5 districts of EQ. FTM offers a cure for malaria and treatments for reproductive health issues, bone fractures and cultural illnesses. Several methods used to learn FTM are based on empirical observation, and without the need for traditional schooling, unlike with Western medical professionals: for example, watching a family member, or the spirits or ancestors, can reveal healing knowledge. Materials from forests, including tree barks and plants, and rituals are used to keep Fang populations healthy; in addition, two rituals known as “osuiñ” and “etoak” (infusions of tree barks with the blood of sacrificed animals) are the most commonly used treatments. In addition, elders and women are the most active consumers of FTM. FTM plays a relevant role in curing medical and cultural afflictions in Fang communities. The informal health-seeking behavior among the Fang community is conditioned by the explanation model of illness.
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Ethnopharmacology, Antimicrobial Potency, and Phytochemistry of African Combretum and Pteleopsis Species (Combretaceae): A Review. Antibiotics (Basel) 2023; 12:antibiotics12020264. [PMID: 36830175 PMCID: PMC9951921 DOI: 10.3390/antibiotics12020264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 02/03/2023] Open
Abstract
Bacterial and fungal resistance to antibiotics is of growing global concern. Plants such as the African Combretum and Pteleopsis species, which are used in traditional medicine for the treatment of infections, could be good sources for antimicrobial extracts, drug scaffolds, and/or antibiotic adjuvants. In African countries, plant species are often used in combinations as traditional remedies. It is suggested that the plant species enhance the effects of each other in these combination treatments. Thus, the multi-species-containing herbal medications could have a good antimicrobial potency. In addition, plant extracts and compounds are known to potentiate the effects of antibiotics. The objective of this review is to compile the information on the botany, ethnopharmacology, ethnobotany, and appearance in herbal markets of African species of the genera Combretum and Pteleopsis. With this ethnobotanical information as a background, this review summarizes the information on the phytochemistry and antimicrobial potency of the extracts and their active compounds, as well as their combination effects with conventional antibiotics. The databases used for the literature search were Scopus, Elsevier, EBSCOhost, PubMed, Google Scholar, and SciFinder. In summary, a number of Combretum and Pteleopsis species were reported to display significant in vitro antibacterial and antifungal efficacy. Tannins, terpenes, flavonoids, stilbenes, and alkaloids-some of them with good antimicrobial potential-are known from species of the genera Combretum and Pteleopsis. Among the most potent antimicrobial compounds are arjunglucoside I (MIC 1.9 µg/mL) and imberbic acid (MIC 1.56 µg/mL), found in both genera and in some Combretum species, respectively. The in vitro antimicrobial properties of the extracts and compounds of many Combretum and Pteleopsis species support their traditional medicinal uses.
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Mwinga JL, Otang-Mbeng W, Kubheka BP, Aremu AO. Ethnobotanical Survey of Plants Used by Subsistence Farmers in Mitigating Cabbage and Spinach Diseases in OR Tambo Municipality, South Africa. PLANTS (BASEL, SWITZERLAND) 2022; 11:3215. [PMID: 36501255 PMCID: PMC9741191 DOI: 10.3390/plants11233215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
Annually, significant crop losses are reported due to diseases caused by phytopathogens. Most subsistence farmers cannot afford the high cost of chemical treatments thereby resulting in the increasing dependence on plant extracts to manage crop diseases. In this study, we documented plants used for the management of cabbage and spinach diseases in OR Tambo Municipality, Eastern Cape Province. An ethnobotanical survey using semi-structured questionnaires was used to document plants and plant parts used by the subsistence farmers in managing cabbage and spinach diseases. Semi-structured questionnaires were administered to 41 consenting subsistence farmers from November to December in 2021, using snowball sampling. The collected data were subjected to descriptive statistical and ethnobotanical analyses. A total of 17 plants belonging to 10 families were identified by the participants as being used in mitigating cabbage and spinach diseases. Tulbaghia violacea, Aloe ferox, and Capsicum annuum had the highest use value of 0.32 each, whereas Tulbaghia violacea had the highest relative frequency of citation of 0.39. This current study revealed the importance of plants in managing crop diseases in local communities. It provides baseline data for future pharmacological evaluations in authenticating the efficacies of the identified plants in managing crop diseases.
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Affiliation(s)
- James Lwambi Mwinga
- Indigenous Knowledge Systems (IKS) Centre, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, North-West, South Africa
| | - Wilfred Otang-Mbeng
- School of Biology and Environmental Sciences, Faculty of Agriculture and Natural Sciences, University of Mpumalanga, Private Bag X11283, Mbombela 1200, Mpumalanga Province, South Africa
| | - Bongani Petros Kubheka
- Dohne Agricultural Development Institute, Private Bag X15, Stutterheim 4930, Eastern Cape, South Africa
- Discipline of Plant Pathology, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg 3209, KwaZulu-Natal, South Africa
| | - Adeyemi Oladapo Aremu
- Indigenous Knowledge Systems (IKS) Centre, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, North-West, South Africa
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban 4000, KwaZulu-Natal, South Africa
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Bibliometric Analysis and Systematic Review of Indigenous Knowledge from a Comparative African Perspective: 1990–2020. LAND 2022. [DOI: 10.3390/land11081167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Globally, indigenous knowledge (IK) has been shown to be a critical factor in economic growth and sustainable development and is as important as scientific knowledge. However, when it comes to the African narrative, IK research still seems to fall short, even with the great recognition and interest it is attracting. IK has always been underprivileged and marginalized, treated as an unsubstantiated type of knowledge that cannot provide any scientific solutions. Consequently, the aim of this paper is to provide an insight into the importance of IK research from a comparative African perspective from 1990 to 2020. The paper used a combination of bibliometric analysis and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) protocol to provide a comprehensive view of IK research. The VOSviewer software was used to provide a visualization of the bibliometric analysis through network maps. The findings suggest that while IK is a globally recognized concept, the African narrative is missing and not told by Africans. Most researched studies on IK in Africa are on ethnobotany, customs, traditions, agroforestry, and agriculture. Moreover, most of the IK research is from Southern Africa. There is a need for the integration of IK and scientific knowledge to develop well-informed approaches, methodologies, and frameworks that cater to indigenous communities and resilient ecological development. The research outcomes provide valuable insights for future research trends; they further highlight opportunities for building research partnerships for strengthening policy generation and implementation.
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Asfaw A, Lulekal E, Bekele T, Debella A, Debebe E, Sisay B. Medicinal plants used to treat livestock ailments in Ensaro District, North Shewa Zone, Amhara Regional State, Ethiopia. BMC Vet Res 2022; 18:235. [PMID: 35733153 PMCID: PMC9215094 DOI: 10.1186/s12917-022-03320-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 05/19/2022] [Indexed: 11/30/2022] Open
Abstract
Background In Ethiopia, the majority of animal owners throughout the country depend on traditional healthcare practices to manage their animals' health problems. This ethnoveterinary study was carried out in Ensaro District, North Showa Zone, and Amhara Region, Ethiopia, to identify medicinal plant species used by the local community to treat various livestock ailments. Methods To collect ethnobotanical information, a total of 389 informants (283 men and 106 women) were selected. Among these 95 traditional medicine practitioners were purposely chosen, while the remaining 294 were selected through a systematic random sampling method. Ethnobotanical data were collected through semi-structured interviews, participant observation, guided filed walks and focus group discussions. The Informant Consensus Factor (ICF) and Fidelity Level (FL) values, preference, and direct matrix exercise ranking were determined using quantitative methods. Statistical tests were used to compare indigenous knowledge of medicinal plants among different informant groups. Results A total of 44 ethnoveterinary medicinal plant species were collected and identified that were distributed across 43 genera and 28 families. The family Solanaceae stood first by contributing 4 species followed by Amaranthaceae, Asteraceae, Euphorbiaceae, Fabaceae and lamiaceae with 3 species each. Thirty- seven (88.09%) medicinal plants were collected from wild habitats, 6 medicinal plant species were collected from home garden. The most frequently used life form was shrubs (23 species, 54.76%) followed by herbs (13 species, 30.95%). The widely used parts of medicinal plants were leaves followed by roots. Prepared remedies were administered through drenching, dropping, smearing, eating, wrapping, fumigating and washing. There was significant difference in the indigenous knowledge of medicinal plants between gender, urban and rural people, general and key informants and among age groups. Conclusion Ensaro District is a relatively rich in diversity of ethnoveterinary medicinal plants together with a rich indigenous knowledge in the local communities to collect and effectively utilize for the management different livestock diseases. On the other hand, these days, agricultural expansion, fuel wood collection, cutting plants for fence, furniture and charcoal production are the major threatening factors of these plant resources. Thus, people of the study area must implement in situ and ex-situ conservation strategies to ensure sustainable utilization of these species. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03320-6.
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Affiliation(s)
- Asaye Asfaw
- College of Agriculture, Natural Resource Management Department, Debre Brehan University, Debre Brehan, Ethiopia. .,College of Computational and Natural Science, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Ermias Lulekal
- College of Computational and Natural Science, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tamrat Bekele
- College of Computational and Natural Science, Addis Ababa University, Addis Ababa, Ethiopia
| | - Asfaw Debella
- Traditional and Modern Medicine Research Directorate, Traditional Medicine, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Eyob Debebe
- Traditional and Modern Medicine Research Directorate, Traditional Medicine, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Bihonegn Sisay
- Traditional and Modern Medicine Research Directorate, Traditional Medicine, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
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Ssenku JE, Okurut SA, Namuli A, Kudamba A, Tugume P, Matovu P, Wasige G, Kafeero HM, Walusansa A. Medicinal plant use, conservation, and the associated traditional knowledge in rural communities in Eastern Uganda. Trop Med Health 2022; 50:39. [PMID: 35668541 PMCID: PMC9168352 DOI: 10.1186/s41182-022-00428-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Background The global consumption of herbal medicine is increasing steadily, posing an extinction risk to medicinal plants. Uganda is among the top ten countries with a high threat of herbal medicine extinction, and Traditional Medicinal Knowledge (TMK) erosion. This might be attributed to the inadequate documentation, plus many more unclear hindrances. In this study, plant species used to treat human diseases in Butaleja district in Eastern Uganda and their associated TMK were documented. The conservation methods for medicinal plants were also evaluated. The rationale was to support the preservation of ethnopharmacological knowledge.
Methods Data were collected from 80 herbalists using semi-structured questionnaires, from July 2020 to March 2021. Additionally, guided field walks and observations were conducted. Quantitative indices such as, use categories and informant consensus factor (ICF) were evaluated to elucidate the importance of the medicinal plants. Data were analyzed using STATA version-15.0 software. Results In total, 133 species, belonging to 34 families and 125 genera were identified. Fabaceae (65%), and Solanaceae (29%) were the dominant families. Leaves (80%), and roots (15%), were the commonest parts used in medicinal preparations; mostly administered orally as decoctions (34.6%) and infusions (16%). The commonest illnesses treated were cough (7.74%), gastric ulcers (7.42%), and malaria (4.52%). The informant consensus factor was high for all disease categories (≥ 0.8), indicating homogeneity of knowledge about remedies used. Only 73% of the respondents made efforts to conserve medicinal plants. The commonest conservation strategy was preservation of forests with spiritually valued species (100%), while compliance with government regulations was the rarest (4.5%). Overall, efforts to stop the extinction of medicinal plants and TMK were inadequate.
Conclusion and recommendations There was enormous dependency on a rich diversity of medicinal plant species and TMK for healthcare and income generation. The potential for medicinal plant biodiversity loss was evident due to habitat destruction. Inclusion of traditional cultural norms in conservation strategies, and laboratory-based efficacy tests for the species identified are necessary, to promote the conservative and utilization of validated herbal medicines and TMK in rural settings. Supplementary Information The online version contains supplementary material available at 10.1186/s41182-022-00428-1.
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Affiliation(s)
- Jamilu E Ssenku
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda. .,Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, Kampala, Uganda.
| | - Shaban A Okurut
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda
| | - Aidah Namuli
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda
| | - Ali Kudamba
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda
| | - Patience Tugume
- Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, Kampala, Uganda
| | - Paul Matovu
- Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, Kampala, Uganda.,Forestry Sector Support Department, Nyabyeya Forestry College, Ministry of Water and Environment, Masindi, Uganda
| | - Godfrey Wasige
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda
| | - Hussein M Kafeero
- Department of Microbiology and Immunology, Faculty of Health Sciences, Habib Medical School, Islamic University in Uganda, Kampala, Uganda
| | - Abdul Walusansa
- Department of Biological Sciences, Faculty of Science, Islamic University in Uganda, Mbale, Uganda.,Department of Microbiology and Immunology, Faculty of Health Sciences, Habib Medical School, Islamic University in Uganda, Kampala, Uganda.,Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, Kampala, Uganda
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Odukoya JO, Odukoya JO, Mmutlane EM, Ndinteh DT. Ethnopharmacological Study of Medicinal Plants Used for the Treatment of Cardiovascular Diseases and Their Associated Risk Factors in sub-Saharan Africa. PLANTS 2022; 11:plants11101387. [PMID: 35631812 PMCID: PMC9143319 DOI: 10.3390/plants11101387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/16/2022]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of global mortality, including deaths arising from non-communicable diseases in sub-Saharan Africa (SSA). Consequently, this study aimed to provide details of medicinal plants (MPs) employed in SSA for the treatment of CVDs and their related risk factors to open new avenues for the discovery of novel drugs. The extensive ethnopharmacological literature survey of these MPs in 41 SSA countries was based on studies from 1982 to 2021. It revealed 1,085 MPs belonging to 218 botanical families, with Fabaceae (9.61%), Asteraceae (6.77%), Apocynaceae (3.93%), Lamiaceae (3.75%), and Rubiaceae (3.66%) being the most represented. Meanwhile, Allium sativum L., Persea americana Mill., Moringa oleifera Lam., Mangifera indica L., and Allium cepa L. are the five most utilised plant species. The preferred plant parts include the leaves (36%), roots (21%), barks (14%), fruits (7%), and seeds (5%), which are mostly prepared by decoction. Benin, Mauritius, Nigeria, South Africa, and Togo had the highest reported use while most of the investigations were on diabetes and hypertension. Despite the nutraceutical advantages of some of these MPs, their general toxicity potential calls for caution in their human long-term use. Overall, the study established the need for governments of SSA countries to validate the efficacy/safety of these MPs as well as provide affordable, accessible, and improved modern healthcare services.
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Affiliation(s)
- Johnson Oluwaseun Odukoya
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
- Department of Chemistry, The Federal University of Technology, Akure PMB 704, Ondo State, Nigeria
- Correspondence: (J.O.O.); (E.M.M.); Tel.: +27-679181492 (J.O.O.); +27-(0)-115593431 (E.M.M.)
| | - Julianah Olayemi Odukoya
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
- Department of Food Science and Technology, Kwara State University, Malete, Ilorin PMB 1530, Kwara State, Nigeria
| | - Edwin Mpho Mmutlane
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
- Correspondence: (J.O.O.); (E.M.M.); Tel.: +27-679181492 (J.O.O.); +27-(0)-115593431 (E.M.M.)
| | - Derek Tantoh Ndinteh
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
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Khumalo GP, Van Wyk BE, Feng Y, Cock IE. A review of the traditional use of southern African medicinal plants for the treatment of inflammation and inflammatory pain. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114436. [PMID: 34289396 DOI: 10.1016/j.jep.2021.114436] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Inflammation is a serious global concern due to its debilitating symptoms, resulting in considerable suffering and lost productivity. Chronic and auto-immune inflammatory diseases are of particular concern. Several pharmaceutical therapies are already available. However, the use of non-steroidal anti-inflammatory drugs (NSAID's) is accompanied by harmful and toxic side effects. Hence, the search for safer alternative therapeutics with limited side effects is imperative. The use of medicinal plants is common practice amongst the southern African population and may provide targets for drug development. AIM OF THE STUDY This study aims to review and document the medicinal uses and pharmacological properties of southern African medicinal plants used for inflammation and pain-related ailments. MATERIAL AND METHODS An extensive literature review was undertaken to identify southern African plants used traditionally to treat inflammation. A variety of ethnobotanical books and grey literature, as well as ScienceDirect, Google Scholar and Scopus search engines were used as sources of information. RESULTS This review identified 555 medicinal plants from 118 families which were traditionally used in southern Africa to treat inflammation and pain. Fabaceae was the most prominent family with 63 species, followed by Asteraceae (54 species) and Apocynaceae (33 species). The top category of ailments indicated include non-specific inflammation with 150 species, followed by inflammatory pain (148 species), headache (114 species) and toothache (114 species). CONCLUSION Despite a large number of southern African medicinal plants used to treat inflammation and pain, relatively few have been screened for their anti-inflammatory properties. Furthermore, biologically active plant extracts have been tested against relatively few inflammatory markers and considerable further work is required.
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Affiliation(s)
- Gugulethu P Khumalo
- Environmental Futures Research Institute, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, Australia; School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, Australia; Griffith Research Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, Queensland, 4111, Australia
| | - Ben Erik Van Wyk
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, Johannesburg, South Africa
| | - Yunjiang Feng
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, Australia; Griffith Research Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, Queensland, 4111, Australia
| | - Ian E Cock
- Environmental Futures Research Institute, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, Australia; School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, Australia.
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Duarte-Casar R, Romero-Benavides JC. Tragia L. Genus: Ethnopharmacological Use, Phytochemical Composition and Biological Activity. PLANTS 2021; 10:plants10122717. [PMID: 34961188 PMCID: PMC8705345 DOI: 10.3390/plants10122717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/09/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022]
Abstract
Tragia L. is a genus of plants belonging to the Euphorbiaceae family with worldwide intertropical distribution, composed of more than 150 species. In this literature review, 26 species of the genus used as medicinal plants were found, mainly in East Africa and the Indian subcontinent, with a variety of uses among which antibacterial, anti-inflammatory, anticancer and reproductive health are most common. Research has been done on a few of the species, mostly those of the Old World, with emphasis on four of them: Tragia involucrata Linn., Tragia spathulata Benth., Tragia benthamii Baker and Tragia plukenetii Radcl.-Sm., confirming several ethnomedicinal claims. Moreover, a variety of active phytochemicals have been isolated, mainly ethers, hydrocarbons, flavonoids and sterols. There is ample field for the evaluation of the activity of Tragia extracts and essential oils and the identification of their active compounds, particularly of the New World species, for which there is still very little research.
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Affiliation(s)
- Rodrigo Duarte-Casar
- Maestría en Química Aplicada, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador;
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador
| | - Juan Carlos Romero-Benavides
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 110108, Ecuador
- Correspondence: ; Tel.: +593-98-770-8487
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Moremi MP, Makolo F, Viljoen AM, Kamatou GP. A review of biological activities and phytochemistry of six ethnomedicinally important South African Croton species. JOURNAL OF ETHNOPHARMACOLOGY 2021; 280:114416. [PMID: 34265381 DOI: 10.1016/j.jep.2021.114416] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/23/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Croton (Euphorbiaceae) encompasses 1300 species, which consist of a variety of trees and shrubs distributed across the world. About 26 species are harboured on the African continent. This genus plays an essential role in African folk medicine. Croton species are traditionally used for the treatment of many diverse conditions such as diabetes, malaria, sexually transmitted diseases, cancer, inflammation, fever, digestive problems and fungal infections. AIM OF THE REVIEW To provide a comprehensive overview of the ethnobotany, traditional uses, phytochemistry and biological activities of six selected southern Africa Croton species; C.gratissimus Burch., C. megalobotrys Müll.-Arg., C. menyhartii Gȕrke, C. pseudopulchellus Pax, C. steenkampianus Gerstner and C. sylvaticus Schltdl.). MATERIALS AND METHODS Various electronic databases, namely Google, Google Scholar, Scopus, ScienceDirect, Biomed Central and Pubmed, were used to search for information related to the traditional uses, chemistry and pharmacology of Croton species. Books were also consulted to collect all pertinent information. RESULTS AND DISCUSSION The ethnopharmacology, phytochemistry and biological activities of southern African Croton species are reviewed. The literature revealed that Croton species are trusted traditional medicines for the treatment of microbial infections and malaria. The non-volatile components of Croton species include flavonoids, terpenoids and alkaloids, while the volatile constituents comprise mainly of monoterpenes (α-phellandrene, α-pinene and 1,8-cineole) and sesquiterpenes (caryophyllene oxide). Most of the reported biological activities (anti-oxidant, antimicrobial, anticancer and antimalarial) were based on in vitro assays and were accredited to various extracts. However, both in vitro and in vivo studies, linking the reported activities to specific compounds, are still lacking. CONCLUSIONS Croton species are used in traditional medicine to treat a range of ailments, and various in vitro biological activities have been investigated, with some extracts exhibiting good activity that could be considered for further investigation. The in vitro activities obtained seem to justify the use of Croton species in traditional medicine. Data on in vivo studies are scarce and studies usually focused on a single collection. The need to establish a quality control protocols for the standardisation of these herbal drugs is also important.
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Affiliation(s)
- Matenyane P Moremi
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
| | - Felix Makolo
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
| | - Alvaro M Viljoen
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa; SAMRC Herbal Drugs Research Unit, Faculty of Science, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
| | - Guy P Kamatou
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa; SAMRC Herbal Drugs Research Unit, Faculty of Science, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
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Ethnobotanical Documentation, Phytochemical Screening, and Cytotoxicity Evaluation of Medicinal Plants Used to Manage Snakebite Envenomation in Mwingi West Subcounty, Kenya. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:4167296. [PMID: 34616476 PMCID: PMC8490041 DOI: 10.1155/2021/4167296] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/20/2021] [Indexed: 11/18/2022]
Abstract
Snakebite envenomation (SBE) is a life-threatening global public health problem affecting over 2.7 million persons annually, with a bigger burden lying in the developing world. Despite the successful management of SBE by antivenom therapy in conventional medicine, it is of low efficacy due to the diverse venom composition across snake types, which limits its usefulness. As a result, inhabitants of the sub-Sahara region, where SBE incidence is high, utilise medicinal plants as an alternative remedy for SBE. However, most plants have not been ethnobotanically documented and validated empirically and hence this study is needed. An ethnobotanical survey to document medicinal plants used to manage SBE in Migwani ward, Mwingi West Subcounty, Kitui County, was conducted between January and February, 2021. Ethnobotanical data were collected from 45 purposefully sampled respondents from Migwani ward using semistructured questionnaires, field walks, and oral interviews. In this study, 14 medicinal plants which are used to manage SBE were documented. Four plants with the highest Relative Frequency of Citation (RFC) (Entada leptostachya Harms-stem bark (0.58), Senna singueana-roots (0.53), Securidaca longipendunculata-roots (0.36), and Strychnos henningsii-stem bark (0.46)) were selected and extracted using water, methanol, and dichloromethane according to the standard procedures. Qualitative phytochemical analysis of the plant extracts and their cytotoxic effects on brine shrimp nauplii (brine shrimp lethality assay) was conducted according to the standard techniques. Qualitative phytochemical screening revealed the presence of anti-SBE-associated phytochemicals, such as alkaloids, saponins, tannins, phenols, and flavonoids, in the aqueous and methanolic extracts of the studied plant extracts. However, the tested phytochemicals were not detected in dichloromethane extracts of all the studied extracts. The anti-SBE effects of the documented plants could be attributable to these associated bioactive phytocompounds, which are synthesized by the studied plants and transfered to humans when consumed. Furthermore, the aqueous and methanolic extracts of Entada leptostachya and Senna singueana had high LC50 of >1000 µg/ml and were considered noncytotoxic. However, Securidaca longipendunculata had an LC50 of <1000 µg/ml and was considered slightly cytotoxic. Further empirical investigations to characterise the bioactive phytochemicals and their safety should be done.
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Frimpong EK, Asong JA, Aremu AO. A Review on Medicinal Plants Used in the Management of Headache in Africa. PLANTS 2021; 10:plants10102038. [PMID: 34685845 PMCID: PMC8539318 DOI: 10.3390/plants10102038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/28/2021] [Accepted: 09/04/2021] [Indexed: 01/29/2023]
Abstract
The use of medicinal plants in the management of diverse ailments is entrenched in the culture of indigenous people in African communities. This review provides a critical appraisal of the ethnobotanical uses of medicinal plants for the management of headache in Africa. Research articles published from 2010 (Jan) to 2021 (July) with keywords such as Africa, ethnobotany, headache, medicinal plant and traditional medicine were assessed for eligibility based on sets of pre-defined criteria. A total of 117 plants, representing 56 families, were documented from the 87 eligible studies. Asteraceae (10%), Fabaceae (10%), Lamiaceae (9%) and Mimosaceae (5%) were the most represented plant families. The most popular plant species used in the management of headache were Ocimum gratissimum L. (n = 7), Allium sativum L. (n = 3), Ricinus communis L. (n = 3) and Artemisia afra Jack. ex. Wild (n = 2). The leaves (49%), roots (20%) and bark (12%) were the most common plant parts used. Decoction (40%) and infusion (16%) were the preferred methods of preparation, whereas the oral route (52%) was the most preferred route of administration. The data revealed that medicinal plants continue to play vital roles in the management of headache in African communities. In an attempt to fully explore the benefits from the therapeutic potential of indigenous flora for common ailments, further studies are essential to generate empirical evidence on their efficacies, using appropriate test systems/models. This approach may assist with the ongoing drive towards the integration of African traditional medicine within mainstream healthcare systems.
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Affiliation(s)
- Ebenezer Kwabena Frimpong
- Indigenous Knowledge Systems Centre, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, South Africa;
- Correspondence: (E.K.F.); (A.O.A.); Tel.: +27-18-389-2573 (A.O.A.)
| | - John Awungnjia Asong
- Indigenous Knowledge Systems Centre, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, South Africa;
| | - Adeyemi Oladapo Aremu
- Indigenous Knowledge Systems Centre, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, South Africa;
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2790, South Africa
- Correspondence: (E.K.F.); (A.O.A.); Tel.: +27-18-389-2573 (A.O.A.)
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Nyambe MM, Kwembeya EG, Lisao K, Hans R. Oral hygiene in Namibia: A case of chewing sticks. JOURNAL OF ETHNOPHARMACOLOGY 2021; 277:114203. [PMID: 33992751 DOI: 10.1016/j.jep.2021.114203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/16/2021] [Accepted: 05/08/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chewing sticks have served as the primary form of dental care for rural communities in resource-poor settings for millennia. They are one of the most important under-researched, non-timber forest products in Namibia. This review provides an overview of plants that are used as chewing sticks in Namibia and highlights pharmacological as well as phytochemical studies conducted on them. AIM OF THE STUDY This review aims to present a summary of studies that have been done on the ethnomedicinal uses, phytochemistry, biological activity as well as evidence on the scientific validation and geographical distribution of chewing sticks in Namibia. It also highlights research gaps and provides an impetus for the scientific investigations of these plant species. MATERIAL AND METHODS Literature searches using keywords including oral hygiene, chewing sticks, ethnomedicinal uses, phytochemistry, antimicrobial, antioxidants, anti-inflammatory activities and toxicity studies, chewing sticks, and distribution in Namibia on various electronic search engines was conducted. RESULTS Of the 41 plant species identified, Cordia sinensis Lam., Faidherbia albida (Delile) A.Chev. and Harpagophytum zeyheri Decne. are used for both gargling and as mouthwash. The plant families Fabacae, Ebenaceae, and Burseraceae account for 22.0%, 12.2%, and 7.30% of plant species recorded as chewing sticks in Namibia respectively. This study revealed a significant relationship between plant family and scientific validation. Species belonging to Burseraceae, Apocynaceae, Montiniaceae, and Cucurbitaceae families have only been partially validated. The Kunene region, home to the Ovahimba ethnic group, had the highest proportion (87.8%) of chewing sticks species compared to other regions. CONCLUSION This review revealed that most of the plants used as chewing sticks in Namibia require an in-depth pharmacological and phytochemical investigation as deduced from the paucity of literature on the therapeutic methods, mechanisms of action, efficacy, toxicity, and clinical relevance of these species.
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Affiliation(s)
- Moola M Nyambe
- Department of Chemistry and Biochemistry, University of Namibia, Faculty of Science, P/Bag, 13301, Windhoek, Namibia.
| | - Ezekeil G Kwembeya
- Department of Biological Sciences, University of Namibia, Faculty of Science, P/Bag, 13301, Windhoek, Namibia
| | - Kamuhelo Lisao
- Ministry of Environment, Forestry and Tourism. Directorate of Forestry, P/Bag, 1971, Katima Mulilo, Namibia
| | - Renate Hans
- Department of Chemistry and Biochemistry, University of Namibia, Faculty of Science, P/Bag, 13301, Windhoek, Namibia
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Kavaye Kandeda A, Okomolo Moto FC, Omam Omam JP, Mbomo Ayissi RE, Ojong L, Ngo Bum E. Pergularia daemia alters epileptogenesis and attenuates cognitive impairment in kainate-treated mice: Insight into anti-inflammatory mechanisms. Epilepsy Behav 2021; 115:107707. [PMID: 33429138 DOI: 10.1016/j.yebeh.2020.107707] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/21/2020] [Accepted: 12/12/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND About 60% of temporal lobe epilepsies are drug resistant. Thus, medicinal plants are sources of new antiepileptic drugs. Pergularia daemia is used in Cameroon to treat pain, fever, arthritis, infections, and temporal lobe epilepsy. However, there are no scientific reports on the anti-inflammatory activity of P. daemia during epileptogenesis. OBJECTIVE This study aimed at determining the involvement of the anti-inflammatory activity of P. daemia during epileptogenesis in kainate-treated mice. METHODS Status epilepticus was induced in mice with kainate (15 mg/kg; i.p.). Those developing status epilepticus for 2 h were divided and treated once daily, for two weeks, with distilled water (10 ml/kg; p.o.), P. daemia extract (4.9, 12.3, 24.5, and 49 mg/kg; p.o.), and sodium valproate (300 mg/kg; i.p.) or aspirin (20 mg/kg; i.p.). One hour following the last treatment, the susceptibility of mice to seizures was assessed during epileptogenesis with pentylenetetrazole (40 mg/kg; i.p.). Then, mice were subjected to morris water maze, object recognition, and open-field tests. After completion of behavioral analysis, hippocampi and blood were collected for pro-inflammatory markers or histological analysis. RESULTS The extract of P. daemia at all doses significantly reduced the latency and duration of seizures and increased seizure score. P. daemia (24.5 and 49 mg/kg) also prevented SE-induced cognitive impairment. Furthermore, the extract (24.5 and 49 mg/kg) markedly decreased tumor necrosis factor-α, interleukins-1β, and -6 levels in hippocampi or serum. Histological analysis revealed that P. daemia attenuated neuronal loss in CA1 and CA3 areas of the hippocampus. CONCLUSIONS These findings suggest that anti-inflammatory mechanisms are involved in the antiepileptogenic effect of P. daemia extract. This justifies therefore its use to treat epilepsy and inflammation in Cameroon traditional folk medicine.
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Affiliation(s)
- Antoine Kavaye Kandeda
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
| | - Fleur Clarisse Okomolo Moto
- Department of Biological Sciences, Higher Teachers Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon.
| | - Jean Pierre Omam Omam
- Department of Biological Sciences, Higher Teachers Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon.
| | - Rigobert Espoir Mbomo Ayissi
- Department of Biological Sciences, Higher Teachers Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon.
| | - Lucie Ojong
- Center of Medical Research, Institute of Medical Research and Medicinal Plant Studies, P.O. Box 6163, Yaoundé, Cameroon.
| | - Elisabeth Ngo Bum
- Department of Biological Sciences, Faculty of Science, University of Maroua, P.O. Box 52, Maroua, Cameroon.
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Sena-Júnior AS, Aidar FJ, de Oliveira e Silva AM, Estevam CDS, de Oliveira Carvalho CR, Lima FB, dos Santos JL, Marçal AC. Whether or Not the Effects of Curcuma longa Supplementation Are Associated with Physical Exercises in T1DM and T2DM: A Systematic Review. Nutrients 2020; 13:nu13010124. [PMID: 33396291 PMCID: PMC7823559 DOI: 10.3390/nu13010124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022] Open
Abstract
Diabetes mellitus is one of the most prevalent chronic diseases in the world; one of its main characteristics is chronic hyperglycemia. Pharmacotherapy and other alternatives such as regular exercise are among the therapeutic methods used to control this pathology and participate in glycemic control, as well as the ingestion of plant extracts with antioxidant effects. Among the different plants used for this purpose, curcumin has potential to be used to attenuate the hyperglycemic condition triggered by diabetes mellitus (DM). Some prior studies suggest that this plant has antioxidant and hypoglycemic potential. This review aims to evaluate the antioxidant and hypoglycemic potential of curcumin supplementation in Type 1 DM (T1DM) and Type 2 DM (T2DM). The search considered articles published between 2010 and 2019 in English and Portuguese, and a theoretical survey of relevant information was conducted in the main databases of scientific publications, including the Virtual Health Library and its indexed databases, PubMed, LILACS (Latin American and Caribbean Literature on Health Sciences-Health Information for Latin America and the Caribbean-BIREME/PAHO/WHO), and Scientific Electronic Library Online (SciELO). The associated use of turmeric and physical exercise has demonstrated antioxidant, anti-inflammatory, and hypoglycemic effects, suggesting that these could be used as potential therapeutic methods to improve the quality of life and survival of diabetic patients.
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Affiliation(s)
- Ailton Santos Sena-Júnior
- Graduate Program in Physical Education, Universidade Federal de Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil; (A.S.S.-J.); (F.J.A.); (J.L.d.S.)
| | - Felipe José Aidar
- Graduate Program in Physical Education, Universidade Federal de Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil; (A.S.S.-J.); (F.J.A.); (J.L.d.S.)
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports—GEPEPS, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
- Graduate Program in Physiological Sciences, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil;
| | - Ana Mara de Oliveira e Silva
- Nutrition Sciences Graduate Program, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil;
- Department of Nutrition, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Sergipe CEP 49060-100, Brazil
| | - Charles dos Santos Estevam
- Graduate Program in Physiological Sciences, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil;
- Postgraduate in Biotechnology, Northeast Network in Biotechnology (RENORBIO), Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
| | - Carla Roberta de Oliveira Carvalho
- Department of Physiology and Biophysics, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo CEP 05508-000, Brazil; (C.R.d.O.C.); (F.B.L.)
| | - Fábio Bessa Lima
- Department of Physiology and Biophysics, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo CEP 05508-000, Brazil; (C.R.d.O.C.); (F.B.L.)
| | - Jymmys Lopes dos Santos
- Graduate Program in Physical Education, Universidade Federal de Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil; (A.S.S.-J.); (F.J.A.); (J.L.d.S.)
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports—GEPEPS, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
| | - Anderson Carlos Marçal
- Graduate Program in Physical Education, Universidade Federal de Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil; (A.S.S.-J.); (F.J.A.); (J.L.d.S.)
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Sergipe CEP 49100-000, Brazil
- Correspondence:
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Ethnobotanical survey of plants used to treat respiratory infections and related symptoms in the Limpopo Province, South Africa. J Herb Med 2020. [DOI: 10.1016/j.hermed.2020.100390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Poisonous medicinal plants used in the popular pharmacopoeia of the Rif, northern Morocco. Toxicon 2020; 189:24-32. [PMID: 33181163 DOI: 10.1016/j.toxicon.2020.10.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 10/07/2020] [Accepted: 10/29/2020] [Indexed: 12/27/2022]
Abstract
Popular herbal medicine has served as a unique health provider for human beings for thousands of years. In the present study, we document the toxic plants used as medicines in the Rif, intending to assess the knowledge of indigenous people on the toxicity of the natural products used. Ethnobotanical survey was conducted in the Rif, northern Morocco between June 2016 and June 2018 using semi-structured questionnaires and focus groups. An investigation of the scientific literature was conducted to sustain or verify the claimed toxicological information. A total of 84 species of plants belonging to 67 genera and 30 families were reported as being used in the prevention and treatment of diseases. The families reported to be most representatives of these kinds of plants are Asteraceae and Fabaceae (7 species). However, the highly toxic plant prescribed was Rosmarinus officinalis L. Leaf was the most commonly used plant part, and the majority of herbal remedies were prepared from a decoction (40.6%). The results of this investigation showed that the local people in the Rif are still dependent on herbal medicine. These species used for remedial purposes are noted to have a potential toxic impact associated with their irrational consumption. Therefore, we recommend that attention should be observed when using them as medicinal sources.
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Novotna B, Polesny Z, Pinto-Basto MF, Van Damme P, Pudil P, Mazancova J, Duarte MC. Medicinal plants used by 'root doctors', local traditional healers in Bié province, Angola. JOURNAL OF ETHNOPHARMACOLOGY 2020; 260:112662. [PMID: 32147477 DOI: 10.1016/j.jep.2020.112662] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 02/06/2020] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE This study is one of the first post-civil war efforts to document traditional botanical knowledge in Bié province, central Angola, in a first step to bring more studies on the use of medicinal plant resources in this area so as to bring new insights into Angolan bio-cultural diversity. AIM OF THE STUDY Examine the variety of plant species used for medical purposes, as well as characterize their social and cultural values. Also, it is aimed to compare their uses in the studied region with those in Sub-Saharan Africa and report new ethnomedicinal uses. MATERIALS AND METHODS We documented traditional medicinal plant knowledge among professional herbalists in two areas in Bié province through participatory observation, semi-structured interviews and transect walks. Ethnobotanical information was quantified based on Use Reports to (1) rate traditional knowledge; and (2) determine most useful taxa. RESULTS In total, 10 traditional healers shared information on their knowledge. A total of 87 plant species distributed among 57 genera and 36 botanical families were documented with Fabaceae being the best-represented family with 18 species, followed by Phyllanthaceae (6), Apocynaceae (5), Asteraceae (5), Rubiaceae (5), Lamiaceae (4), and Ochnaceae (3). Most medicinal plants are usually gathered at a distance from human settlements because of the belief in the higher efficacy of 'wild' plants shared by all herbalists. Roots are the most common plant part used (79%), explaining why the consulted herbalists call themselves 'root doctors'. CONCLUSIONS The culturally most important medicinal species identified in this study, i.e. Securidaca longepedunculata, Garcinia huillensis, Annona stenophylla, Afzelia quanzensis and Strychnos cocculoides, were previously reported for the same use in neighbouring countries and elsewhere in Africa. Our study also indicates that there are several locally valuable species that have not yet been studied for their medical potential, to name a few: Alvesia rosmarinifolia, Diplorhynchus condylocarpon, Eriosema affine, Paropsia brazzaeana, Rhus squalida, Sclerocroton cornutus or Xylopia tomentosa. Moreover, the ethnomedicinal use of 26 species was reported for the first time to sub-Saharan Africa. CLASSIFICATION Ethnopharmacological field studies.
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Affiliation(s)
- Barbora Novotna
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha - Suchdol, Czech Republic; Department of General Anthropology, Faculty of Humanities, Charles University, U Kříže 8, 158 00, Praha 5, Jinonice, Czech Republic.
| | - Zbynek Polesny
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha - Suchdol, Czech Republic.
| | | | - Patrick Van Damme
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha - Suchdol, Czech Republic; Laboratory of Tropical and Subtropical Agronomy and Ethnobotany, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
| | - Petr Pudil
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha - Suchdol, Czech Republic.
| | - Jana Mazancova
- Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha - Suchdol, Czech Republic.
| | - Maria Cristina Duarte
- CE3C - Center for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.
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Junsongduang A, Kasemwan W, Lumjoomjung S, Sabprachai W, Tanming W, Balslev H. Ethnomedicinal Knowledge of Traditional Healers in Roi Et, Thailand. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9091177. [PMID: 32927919 PMCID: PMC7570034 DOI: 10.3390/plants9091177] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/06/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Traditional healers in Thailand are a primary source of health care for the Thai people. Highly experienced traditional healers are generally older people and they continue to pass away without recording or passing on their knowledge. Consequently, the cumulative knowledge held by traditional healers regarding the use of medicinal plants is being eroded and could be lost. In this study, we aimed to identify and document the medicinal plants and associated ethnobotanical knowledge held by traditional healers in Roi Et in northeastern Thailand. Data and plant specimens were collected from four traditional healers of the Phu Tai people. They were selected by purposive sampling and questioned using a semi-structured interview. The interviews covered their training, the ailments treated, treatment techniques, method of preparation and in addition, several healing sessions were observed. During field walks, we searched for the medicinal plants with the healers to review and document the availability of medicinal plants at each locality and in different habitats around the villages. Use values (UV) were calculated to estimate the importance of each medicinal plant and informant agreement ratios (IAR) were calculated to understand how widely known the uses were. The four Phu Tai traditional healers knew 162 medicinal plant species in 141 genera and 63 families. The family with the most medicinal plants was Leguminosae with 15 species. The plant part that they used most commonly was the stem, which was used for 82 species (49%). The most common preparation method was decoction, which was done for 124 species (75%). The most important and widely used medicinal plants were Rothmannia wittii, which had the highest use value (UV = 1.7). Most medicinal plants were used for treating tonic (34 species (21%)). Jaundice had the highest informant agreement ratio (IAR = 0.5). The most common life form among the medicinal plants was trees (56 species (34%)). The medicinal plants were mostly collected in community forests (81 species (49%)). Considering the richness of the healer's pharmacopeia, and the fact that their profession is not being perpetuated, this study points to the urgent need to document the traditional knowledge from the old herbalists before it disappears with the last practitioners from rural communities in Thailand.
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Affiliation(s)
- Auemporn Junsongduang
- Department of Science and Technology, Faculty of Liberal Arts and Science, Roi Et Rajabhat University, Thailand, Selaphum, Roi Et 45120, Thailand; (W.K.); (S.L.); (W.S.)
| | - Wanpen Kasemwan
- Department of Science and Technology, Faculty of Liberal Arts and Science, Roi Et Rajabhat University, Thailand, Selaphum, Roi Et 45120, Thailand; (W.K.); (S.L.); (W.S.)
| | - Sukanya Lumjoomjung
- Department of Science and Technology, Faculty of Liberal Arts and Science, Roi Et Rajabhat University, Thailand, Selaphum, Roi Et 45120, Thailand; (W.K.); (S.L.); (W.S.)
| | - Wichuda Sabprachai
- Department of Science and Technology, Faculty of Liberal Arts and Science, Roi Et Rajabhat University, Thailand, Selaphum, Roi Et 45120, Thailand; (W.K.); (S.L.); (W.S.)
| | - Wattana Tanming
- Queen Sirikit Botanical Garden, Mae Rim, Chiang Mai 50180, Thailand;
| | - Henrik Balslev
- Ecoinformatics and Biodiversity, Department of Biology, Aarhus University Build 1540, Ny Munkegade 114, 8000 Aarhus C, Denmark;
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Mailu JK, Nguta JM, Mbaria JM, Okumu MO. Medicinal plants used in managing diseases of the respiratory system among the Luo community: an appraisal of Kisumu East Sub-County, Kenya. Chin Med 2020; 15:95. [PMID: 32905471 PMCID: PMC7469313 DOI: 10.1186/s13020-020-00374-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 08/19/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Poor access to healthcare in rural communities causes many people to seek herbalists who use medicinal plants for the treatment of various disease conditions. Most knowledge of traditional herbal medicine makes use of indigenous remedies which are often undocumented and are at risk of being lost. The preservation of this knowledge may facilitate scientific inquiry into promising new therapeutic molecules. METHODS Semi-structured questionnaires were used to collect the sociodemographic information of 30 herbalists in Kisumu East Sub County. The local names of medicinal plants used in managing illnesses of the respiratory system, their habit, active parts, indications, methods of preparation, routes of administration, scientific identity, and conservation status were also recorded. Other reported traditional uses, pharmacological activities, and toxicological data were identified via a literature search. RESULTS Most herbalists were female (86.7%), aged between 61 and 70 years (43.3%) with no formal education (56.7%), and had 21-30 years of practice (30%). 44 plant species, belonging to 43 genera and 28 families were identified. Leguminosae and Rutaceae plant families were predominant, leaves were frequently used (33%), and trees were the most common habit (44.4%). Most plants were collected in the wild (79.2%), preparation was mainly by decoction (68.8%), and the administration was mainly orally. The main indication was cough and 79.5% of all documented plant species had previously been reported to have a pharmacological activity relevant to the mitigation of respiratory illnesses. Toxicological data was available for 84.1% of the plant species identified. CONCLUSIONS The predominant use of roots, root barks, and root tubers by herbalists in Kisumu East Sub County threatens to negatively impact the ecological survival of some plant species. The preservation of herbalists' knowledge of medicinal plants in the study area is a pressing concern considering their advanced age and little formal education. There is a need to conserve some of the medicinal plants documented in this study. The medicinal claims made by herbalists also warrant scientific scrutiny.
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Affiliation(s)
- James Kiamba Mailu
- Department of Public Health, Pharmacology, and Toxicology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053-00625, Nairobi, Kenya
- Department of Pharmacy, Kenya Medical Training College, Kisumu Campus Kenya, P.O Box 1594, Kisumu, Kenya
| | - Joseph Mwanzia Nguta
- Department of Public Health, Pharmacology, and Toxicology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053-00625, Nairobi, Kenya
| | - James Mucunu Mbaria
- Department of Public Health, Pharmacology, and Toxicology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053-00625, Nairobi, Kenya
| | - Mitchel Otieno Okumu
- Department of Public Health, Pharmacology, and Toxicology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053-00625, Nairobi, Kenya
- Department of Pharmacy, Jaramogi Oginga Odinga Teaching and Referral Hospital, P.O Box 849-40100, Kisumu, Kenya
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Omotayo AO, Aremu AO. Underutilized African indigenous fruit trees and food–nutrition security: Opportunities, challenges, and prospects. Food Energy Secur 2020. [DOI: 10.1002/fes3.220] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Abiodun Olusola Omotayo
- Food Security and Safety Niche Area Faculty of Natural and Agricultural Sciences North‐West University Mmabatho North West Province South Africa
| | - Adeyemi Oladapo Aremu
- Food Security and Safety Niche Area Faculty of Natural and Agricultural Sciences North‐West University Mmabatho North West Province South Africa
- Indigenous Knowledge Systems (IKS) Centre Faculty of Natural and Agricultural Sciences North West University Mmabatho North‐West Province South Africa
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Shikwambana N, Mahlo SM. A Survey of Antifungal Activity of Selected South African Plant Species Used for the Treatment of Skin Infections. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20923181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Dermatophytosis is a fungal infection of the skin caused by a group of pathogenic fungi known as dermatophytes. Therefore, we investigated those medicinal plants that were being used by local people and traditional healers to treat skin infections in the Mopani District, Limpopo Province. A survey was conducted through the use of a semistructured program to gather information on the common names, plant parts used, methods of preparation, and administration of the medicine. Findings of the survey revealed that over 30 plant species were used for the treatment of skin infections in the area. The most common local mode of medicinal preparation to treat skin was decoction (37%), followed by paste (21%), infusion (19%), poultice (9%), smoke (7%), maceration (5%), and steam (2%). Of the species, only 12 ( Ficus sur L., Peltophorum africanum Sond., Vangueria infausta Burch. subsp. infausta, Diospyros mespilliformis Hochst. ex. A. DC., Ziziphus mucronata Willd. subsp. mucronata, Euclea divinorum Hiern, Ximenia caffra Sond., Dombeya rotundifolia Hochst., Ficus sycomorus L., Sideroxylon inerme L. subsp inerme, Parinari curattellifolia Planch. ex Benth., and Maytenus undata (Thunb.) Blakelock) were selected based on literature and ethnobotanical information. We further investigated the antifungal activity of acetone and aqueous extracts of the above mentioned selected plant species using serial dilution assay against Trichophyton rubrum, Microsporum canis, and Candida albicans. All plant extracts were active against the tested microorganisms with minimum inhibitory concentration (MIC) values ranging between 0.02 mg/mL and 1.25 mg/mL. In the bioautography assay, more active compounds were visible in acetone and water extracts of E. divinorum. No active compounds were observed in some plant extracts with excellent antifungal activity, as shown in the microdilution assay. Findings, in general, suggest that the identified plant species, especially those with extracts showing relatively low MIC values, are playing a big role in treating skin infections in Mopani District.
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Affiliation(s)
| | - Salome Mamokone Mahlo
- Department of Biodiversity, School of Molecular and Life Sciences, University of Limpopo, Sovenga, South Africa
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Medicinal Plants and Their Traditional Uses in Local Communities around Cherangani Hills, Western Kenya. PLANTS 2020; 9:plants9030331. [PMID: 32150955 PMCID: PMC7154930 DOI: 10.3390/plants9030331] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 11/17/2022]
Abstract
Medicinal plants are vital sources of easily accessible remedy used in the countryside healthcare system. This study aimed to find and make record of plants that are used for medicinal therapy by three communities living in Cherangani Hills. So far no single study has documented medicinal plants as a whole in the area. Ethnobotanical data were obtained through interviewing informants using semi-structured questionnaires and extracting information from journals and books. Descriptive statistical analysis was applied to describe the data. Overall 296 plant species from 80 families and 191 genera were identified. Asteraceae family was the most dominant, representing 10.7% of the total plant species recorded. Roots (35.9%) represented the most commonly used parts of the plant. The commonly used method of preparation was decoction (54.9%). The reported diseases were classified into 14 diverse ailment groups out of the 81 health conditions on their underlying user reports. Rural communities in Cherangani Hills are rich sources of plants with medicinal properties. Therapeutic uses of the compiled plants provide basic information that can aid scientists to conduct additional research dedicated to conservation of species and pharmacological studies of species with the greatest significance.
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Manya MH, Keymeulen F, Ngezahayo J, Bakari AS, Kalonda ME, Kahumba BJ, Duez P, Stévigny C, Lumbu SJB. Antimalarial herbal remedies of Bukavu and Uvira areas in DR Congo: An ethnobotanical survey. JOURNAL OF ETHNOPHARMACOLOGY 2020; 249:112422. [PMID: 31765762 DOI: 10.1016/j.jep.2019.112422] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The main objective of the present study was to collect and gather information on herbal remedies traditionally used for the treatment of malaria in Bukavu and Uvira, two towns of the South Kivu province in DRC. MATERIAL AND METHODS Direct interview with field enquiries allowed collecting ethnobotanical data; for each plant, a specimen was harvested in the presence of the interviewed traditional healers (THs). The recorded information included vernacular names, morphological parts of plants, methods of preparation and administration of remedies, dosage and treatment duration. Plants were identified with the help of botanists in the herbaria of INERA/KIPOPO (DRC) and the Botanic Garden of Meise (Belgium), where voucher specimens have been deposited. The results were analysed and discussed in the context of previous published data. RESULTS Interviewees cited 45 plant species belonging to 41 genera and 21 families used for the treatment of malaria. These plants are used in the preparation of 52 recipes, including 25 multi-herbal recipes and 27 mono-herbal recipes. Apart of Artemisia annua L. (Asteraceae; % Citation frequency = 34%) and Carica papaya L. (Caricaceae; % Citation frequency = 34%), the study has highlighted that the most represented families are Asteraceae with 12 species (26%), followed by Fabaceae with 7 species (16%) and Rubiaceae with 4 species (9%). For a majority of plants, herbal medicines are prepared from the leaves in the form of decoction and administered by oral route. CONCLUSION Literature data indicate that part of cited species are already known (38%) and/or studied (30%) for antimalarial properties, which gives credit to the experience of Bukavu and Uvira interviewees and some level of confidence on collected information. The highly cited plants should be investigated in details for the isolation and identification of active ingredients, a contribution to the discovery of new possibly effective antimalarials.
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Affiliation(s)
- Mboni Henry Manya
- Laboratoire de Pharmacognosie, Faculté des Sciences Pharmaceutiques, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo; Service de Chimie Organique, Département de Chimie, Faculté des Sciences, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo; Unité de Pharmacognosie, Bioanalyse et Médicaments, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus de la Plaine - CP205/9, Boulevard du Triomphe, B-1050, Bruxelles, Belgium.
| | - Flore Keymeulen
- Unité de Pharmacognosie, Bioanalyse et Médicaments, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus de la Plaine - CP205/9, Boulevard du Triomphe, B-1050, Bruxelles, Belgium
| | - Jérémie Ngezahayo
- Unité de Pharmacognosie, Bioanalyse et Médicaments, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus de la Plaine - CP205/9, Boulevard du Triomphe, B-1050, Bruxelles, Belgium
| | - Amuri Salvius Bakari
- Laboratoire de Pharmacognosie, Faculté des Sciences Pharmaceutiques, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo
| | - Mutombo Emery Kalonda
- Service de Chimie Organique, Département de Chimie, Faculté des Sciences, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo
| | - Byanga Joh Kahumba
- Laboratoire de Pharmacognosie, Faculté des Sciences Pharmaceutiques, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo
| | - Pierre Duez
- Service de Chimie Thérapeutique et de Pharmacognosie, Université de Mons (UMONS), 20 Place du Parc, 7000, Mons, Belgium
| | - Caroline Stévigny
- Unité de Pharmacognosie, Bioanalyse et Médicaments, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus de la Plaine - CP205/9, Boulevard du Triomphe, B-1050, Bruxelles, Belgium
| | - Simbi Jean-Baptiste Lumbu
- Service de Chimie Organique, Département de Chimie, Faculté des Sciences, Université de Lubumbashi, BP. 1825, Lubumbashi, Congo
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Al-Fatimi M. Ethnobotanical survey of medicinal plants in central Abyan governorate, Yemen. JOURNAL OF ETHNOPHARMACOLOGY 2019; 241:111973. [PMID: 31146001 DOI: 10.1016/j.jep.2019.111973] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional medicinal plant knowledge in Yemen is still only passed on orally from one generation to another. A few studies, mostly very limited in scope, have been dedicated to this indigenous knowledge so far. This paper presents the results of the first extensive field study in southern mainland Yemen, undertaken in three communities in the central region of Abyan governorate. The study is aimed to preserve the heritage of this indigenous knowledge and to explore and select local medicinal plants that promise high pharmacological efficacy for further pharmacological and phytochemical investigations. METHODS 356 indigenous informants (273 males, 83 females) were interviewed about the modes of application and uses of the medicinal plants in the region. The ethnobotanical data were recorded by semi-structured face-to-face interviews, substantiated by specimen collections and taxonomic identifications and quantitative data analysis including informant consensus factor (ICF) and number of use-reports. RESULTS In total, 195 medicinal plant species (170 wild and 25 cultivated) belonging to 138 genera and 55 flowering plant families, were recorded for the treatment of 155 different ailments classified into 16 categories. Apocynaceae (25 species), Fabaceae (18 species), Euphorbiaceae (16 species) and Asteraceae (14 species) were the most frequently used plant families. Paste (86) followed by unprepared plant exudates (77) and decoction (55) were the most common herbal preparation modes. Dermal application (51.8%) was the most common administration route. The highest number of use reports and the maximum number of used medicinal plants were recorded for treatment of skin and gastrointestinal ailments. Forty-five species have never been reported in the ethnomedicinal literature before. Plant species with the most citations were Aloe vacillans Forssk. (malaria), Solanum incanum L. (tooth decay), Caralluma awdeliana (Deflers) A. Berger (diabetes), Tribulus terrestris L. (kidney stones), Aristolochia bracteolata Lam. (snake poison), Hydnora abyssinica A.Br. (stomach ulcer), Indigofera oblongifolia Forssk. (urine retention) and Chrozophora oblongifolia (Delile) A. Juss ex Spreng (haemorrhoids). CONCLUSIONS Significant traditional knowledge of the uses of local medicinal plant species was recorded for the first time for central Abyan in particular and southern Yemen in general. The study shows that the medicinal plants still play an important role in the primary health care in the study area. The ethnobotanical results provide a basis for further pharmacological, biological, pharmacognostical, and phytochemical investigations.
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Affiliation(s)
- Mohamed Al-Fatimi
- Faculty of Pharmacy, Department of Pharmacognosy, Aden University, P.O.Box 5411 (Maalla), Aden, Yemen.
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Mgbeahuruike EE, Holm Y, Vuorela H, Amandikwa C, Fyhrquist P. An ethnobotanical survey and antifungal activity of Piper guineense used for the treatment of fungal infections in West-African traditional medicine. JOURNAL OF ETHNOPHARMACOLOGY 2019; 229:157-166. [PMID: 30336302 DOI: 10.1016/j.jep.2018.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/11/2018] [Accepted: 10/03/2018] [Indexed: 06/08/2023]
Abstract
ETHNOBOTANICAL RELEVANCE Piper guineense occurs commonly in West Africa where it is used for fungal infections instead of the costly and not always accessible conventional antifungals. Fungal, yeast-based diseases are common in West-Africa especially among those living with HIV/AIDS, and thus this study was performed in Imo state, South-Eastern Nigeria, where P. guineense is predominantly used for the treatment of fungal diseases, such as skin rashes, oral thrush and vaginosis. AIM OF STUDY The scarce number of previous studies on the documentation of the traditional uses of P. guineense extracts for the treatment of fungal infections in Nigeria prompted this survey. The investigation focused on how traditional healers recognize and diagnose fungal infections, how P. guineense is collected, on the various parts used for the treatments, methods of preparations, administrations and treatments. In addition, an in vitro antifungal screening of P. guineense fruit and leaf extracts of various polarities, and piperine and piperlongumine, representing the main constituents in these extracts, were performed. METHODS A house to house ethnobotanical survey was conducted using questionnaires. Twenty traditional medical practitioners (TMP) and herb sellers from ten villages were interviewed. Four human pathogenic strains of yeast and Cryptococcus neoformans, a yeast-like basidiomycete causing meningitis in immunocompromised individuals, were used for the antifungal screening. RESULTS The traditional medical practitioners (TMP) and herb sellers explained that the leaves and fruits are the most commonly used plant parts for the treatments. The oral intake of the extracts in locally produced bamboo alcohol (Kai-kai) is the most common method of administration. In accordance with these recorded traditional uses, we found that extracts of P. guineense were growth inhibitory against the fungal strains with MIC values ranging from 39 to 2500 µg/mL. The lowest MIC value of 39 µg/mL was recorded for a methanol fruit extract against Candida albicans, C. glabrata and C. tropicalis. In addition, ethanol and hexane fruit extracts were effective against the growth of C. albicans and C. glabrata, respectively, with a MIC of 78 µg/mL. Piperlongumine and piperine were active against C. albicans with MIC values of 39 and 78 µg/mL respectively. CONCLUSION P. guineense fruit and leaf extracts, as well as their piperamide alkaloid constituents piperine and piperlongumine, have interesting antifungal properties and could have potential as new antifungal scaffolds. Our results warrant further in-depth investigations to isolate and characterize piperamide alkaloids and other compounds responsible for the antifungal activity in the extracts.
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Affiliation(s)
- Eunice Ego Mgbeahuruike
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, Finland.
| | - Yvonne Holm
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, Finland.
| | - Heikki Vuorela
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, Finland.
| | - Chinyere Amandikwa
- Department of Food Science and Technology, School of Engineering and Engineering Technology, Federal University of Technology Owerri, P.M. B 1526 Owerri, Imo state, Nigeria.
| | - Pia Fyhrquist
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, Finland.
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Amuri B, Maseho M, Simbi L, Duez P, Byanga K. Ethnobotanical survey of herbs used in the management of diabetes mellitus in Southern Katanga Area/DR Congo. Pan Afr Med J 2018; 30:218. [PMID: 30574237 PMCID: PMC6294981 DOI: 10.11604/pamj.2018.30.218.11718] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 06/22/2018] [Indexed: 11/11/2022] Open
Abstract
Introduction Diabetes is becoming a public health burden for sub-Saharan countries due to its prevalence which is growing rapidly. Traditional medicine is more and more used to treat diabetes in RD Congo as well as in other African countries. This study was undertaken in order to list plants used in the management of diabetes by traditional healers in four agglomerations of southern area of Katanga in the Democratic Republic of Congo. Methods Forty-nine traditional healers were randomly met and interviewed about diabetes treatment in traditional medicine. The survey concerned the plant identification, their part used, method of preparation and the route of administration. The inquest concerned also traditional medicine users. Results Ninety-five plants from 47 families were indicated as antidiabetic. Fabaceae (24.2%), Euphorbiaceae (7.4%), Apocynaceae and Strychnaceae (4.2 each) are the more representative families. This inventory showed that the root is the most used part of the cited plants, the decoction with water as the main preparation method and the oral administration as the principal way to give antidiabetic traditional formulations. Conclusion In Lubumbashi region, many plant species are used to treat diabetes either through traditional praticians or by anyone from well-known ancestral knowledge.
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Affiliation(s)
- Bakari Amuri
- Laboratoire de Pharmacognosie, Université de Lubumbashi (UNILU), 27 Avenue Kato, Lubumbashi, Democratic Republic of Congo.,Unit of Therapeutic Chemistry and Pharmacognosy, Mons (UMONS), Bât 6, Chemin du Champ de Mars 25, 7000 Mons, Belgium
| | - Mwamba Maseho
- Laboratoire de Pharmacognosie, Université de Lubumbashi (UNILU), 27 Avenue Kato, Lubumbashi, Democratic Republic of Congo
| | - Lumbu Simbi
- Laboratoire de Chimie Organique, Département de Chimie, Faculté des Sciences, Université de Lubumbashi (UNILU), Université de Democratic Republic of Congo
| | - Pierre Duez
- Unit of Therapeutic Chemistry and Pharmacognosy, Mons (UMONS), Bât 6, Chemin du Champ de Mars 25, 7000 Mons, Belgium
| | - Kahumba Byanga
- Laboratoire de Pharmacognosie, Université de Lubumbashi (UNILU), 27 Avenue Kato, Lubumbashi, Democratic Republic of Congo
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Appiah KS, Oppong CP, Mardani HK, Omari RA, Kpabitey S, Amoatey CA, Onwona-Agyeman S, Oikawa Y, Katsura K, Fujii Y. Medicinal Plants Used in the Ejisu-Juaben Municipality, Southern Ghana: An Ethnobotanical Study. MEDICINES (BASEL, SWITZERLAND) 2018; 6:medicines6010001. [PMID: 30577439 PMCID: PMC6473417 DOI: 10.3390/medicines6010001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/10/2018] [Accepted: 12/12/2018] [Indexed: 05/04/2023]
Abstract
Background: The in-depth traditional knowledge of medicinal plants is at risk of extinction due to the dependency on oral transmission, and as such, there is an urgent need to document such knowledge. This study aimed to document indigenous uses of medicinal plants among community members in the Ejisu-Juaben Municipality. Methods: Data was collected in 2016 from community members and local herbalists in the Ejisu-Juaben Municipality through a semi-structured questionnaire. Statistical tools and ethnobotanical indices, i.e., informant consensus factor (ICF), fidelity level (FL), and use value (UV) were used to analyse the data. Results: One hundred and six medicinal plants belonging to 45 families were reported to cure 68 different human diseases. The most frequently used plant part in this study was the leaves (52%). Decoction (57.5%) and oral administration (58.3%) were the most utilised herbal preparation and administration route respectively. Cleistopholis patens had the highest UV (0.54) with pain & fevers and skin diseases having the highest ICF values (0.88 and 0.85 respectively). Furthermore, new medicinal uses of Hilleria latifolia and ten other species were recorded for the treatment of the traditional local disease, aseram. Conclusions: The current knowledge and uses of medicinal plants are still high in the study area based on the high degree of consensus among informants. This study could allow for the preservation of knowledge and biodiversity of medicinal plants, both of which are threatened with extinction.
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Affiliation(s)
- Kwame Sarpong Appiah
- United Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Clement Peprah Oppong
- Department of International and Environmental Agriculture Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Hossein Korrani Mardani
- United Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Richard Ansong Omari
- United Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Sylvia Kpabitey
- Department of Agricultural Economics and Agribusiness, University of Ghana, P.O. Box LG 64 Legon, Accra, Ghana.
| | | | - Siaw Onwona-Agyeman
- Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Yosei Oikawa
- Department of International and Environmental Agriculture Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Keisuke Katsura
- United Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
- Department of International and Environmental Agriculture Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
| | - Yoshiharu Fujii
- United Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
- Department of International and Environmental Agriculture Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan.
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Salehi B, Albayrak S, Antolak H, Kręgiel D, Pawlikowska E, Sharifi-Rad M, Uprety Y, Tsouh Fokou PV, Yousef Z, Amiruddin Zakaria Z, Varoni EM, Sharopov F, Martins N, Iriti M, Sharifi-Rad J. Aloe Genus Plants: From Farm to Food Applications and Phytopharmacotherapy. Int J Mol Sci 2018; 19:E2843. [PMID: 30235891 PMCID: PMC6163315 DOI: 10.3390/ijms19092843] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/14/2018] [Accepted: 09/15/2018] [Indexed: 12/20/2022] Open
Abstract
Aloe genus plants, distributed in Old World, are widely known and have been used for centuries as topical and oral therapeutic agents due to their health, beauty, medicinal, and skin care properties. Among the well-investigated Aloe species are A. arborescens, A. barbadensis, A. ferox, and A. vera. Today, they account among the most economically important medicinal plants and are commonly used in primary health treatment, where they play a pivotal role in the treatment of various types of diseases via the modulation of biochemical and molecular pathways, besides being a rich source of valuable phytochemicals. In the present review, we summarized the recent advances in botany, phytochemical composition, ethnobotanical uses, food preservation, and the preclinical and clinical efficacy of Aloe plants. These data will be helpful to provide future directions for the industrial and medicinal use of Aloe plants.
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Affiliation(s)
- Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran 88777539, Iran.
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran 22439789, Iran.
| | - Sevil Albayrak
- Department of Biology, Science Faculty, Erciyes University, Kayseri 38039, Turkey.
| | - Hubert Antolak
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Dorota Kręgiel
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Ewelina Pawlikowska
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Mehdi Sharifi-Rad
- Department of Medical Parasitology, Zabol University of Medical Sciences, Zabol 61663-335, Iran.
| | - Yadav Uprety
- Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, P.O. Box 1030 Kirtipur, Kathmandu, Nepal.
| | - Patrick Valere Tsouh Fokou
- Antimicrobial and Biocontrol Agents Unit, Department of Biochemistry, Faculty of Science, University of Yaounde 1, Ngoa Ekelle, Annex Fac. Sci, P.O. Box 812 Yaounde, Cameroon.
| | - Zubaida Yousef
- Department of Botany, Lahore College for Women University, Jail Road Lahore 54000, Pakistan.
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia.
- Integrative Pharmacogenomics Institute (iPROMISE), Level 7, FF3 Building, Universiti Teknologi MARA, Puncak Alam 42300, Malaysia.
| | - Elena Maria Varoni
- Department of Biomedical, Surgical and Dental Sciences, Milan State University, via Beldiletto 1/3, 20100 Milan, Italy.
- National Interuniversity Consortium of Materials Science and Technology, via G. Giusti 9, 50121 Firenze, Italy.
| | - Farukh Sharopov
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan.
| | - Natália Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal.
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal.
| | - Marcello Iriti
- National Interuniversity Consortium of Materials Science and Technology, via G. Giusti 9, 50121 Firenze, Italy.
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy.
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 11369, Iran.
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB R3B 2G3, Canada.
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Lautenschläger T, Monizi M, Pedro M, Mandombe JL, Bránquima MF, Heinze C, Neinhuis C. First large-scale ethnobotanical survey in the province of Uíge, northern Angola. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2018; 14:51. [PMID: 30045744 PMCID: PMC6060550 DOI: 10.1186/s13002-018-0238-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Angola suffered a long-lasting military conflict. Therefore, traditional knowledge of plant usage is still an important part of cultural heritage, especially concerning the still very poor health care system in the country. Our study documents for the first time traditional knowledge of plant use of local Bakongo communities in the northern province of Uíge on a large scale with a focus on medicinal plants and puts data in context to different parameters of age, gender and distance to the provincial capital. METHODS Field work was carried out during nine field trips in 13 municipalities between October 2013 and October 2016. In 62 groups, 162 informants were interviewed. Herbarium specimens were taken for later identification. Database was analysed using Relative Frequency of Citations, Cultural Importance Index, and Informant Consensus Factor. Furthermore, significances of influence of age, gender and distance were calculated. RESULTS Our study presents 2390 use-reports, listing 358 species in 96 plant families, while just three out of 358 mentioned species are endemic to Angola about one-fifth are neophytes. The larger the distance, the higher the number of use citations of medical plants. Although women represent just a fifth of all citations (22%), their contribution to medicinal plants was proportionally even higher (83%) than those of men (74%). Fifty percent of all plants mentioned in the study were just listed by men, 12% just by women. We made some new discoveries, for example. Gardenia ternifolia seems to be promising for treatment of measles, and Annona stenophylla subsp. cuneata has never been ethnobotanically nor phytochemically investigated. CONCLUSIONS While the study area is large, no significant influence of the distance in regard to species composition in traditional healer's concepts of the respective village was pointed out. Although several plants were just mentioned by women or men, respectively, no significant restriction to gender-specific illnesses in medical plant use could be found. Merely concerning the age of informants, a slight shift could be detected. Visual representation of the ethnobotanical study in Uíge, northern Angola.
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Affiliation(s)
- Thea Lautenschläger
- Department of Biology, Institute of Botany, Faculty of Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Mawunu Monizi
- University Kimpa Vita, Province of Uíge, Rua Henrique Freitas No. 1, Bairro Popular, Uíge, Angola
| | - Macuntima Pedro
- University Kimpa Vita, Province of Uíge, Rua Henrique Freitas No. 1, Bairro Popular, Uíge, Angola
| | - José Lau Mandombe
- University Kimpa Vita, Province of Uíge, Rua Henrique Freitas No. 1, Bairro Popular, Uíge, Angola
| | - Makaya Futuro Bránquima
- University Kimpa Vita, Province of Uíge, Rua Henrique Freitas No. 1, Bairro Popular, Uíge, Angola
| | - Christin Heinze
- Department of Biology, Institute of Botany, Faculty of Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Christoph Neinhuis
- Department of Biology, Institute of Botany, Faculty of Science, Technische Universität Dresden, 01062 Dresden, Germany
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Mongalo NI, Makhafola TJ. Ethnobotanical knowledge of the lay people of Blouberg area (Pedi tribe), Limpopo Province, South Africa. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2018; 14:46. [PMID: 30001728 PMCID: PMC6044033 DOI: 10.1186/s13002-018-0245-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 06/18/2018] [Indexed: 05/09/2023]
Abstract
BACKGROUND Limpopo province, South Africa, has a rich plant diversity and is referred to as one of the hotspots areas within the country. The aim of the current work was to identify and document medicinal plant species used by the indigenous Pedi people of Blouberg area, Limpopo Province, South Africa. METHODS A total of 40 informants which includes both traditional healers and medicinal plant sellers were randomly selected and asked about the plant species used in treatment of variety of infections using a structured questionnaire. Follow-up visits and various field walks were also used to identify and document various plant species used in Traditional medicine (TM). The interviews were carried out from April 2008 to June 2016 using indigenous language (Sehananwa). RESULTS A total of 82 medicinal plants species belonging to 42 families have been collected, identified and documented. About 46.34% of the plant species were herbs, followed by trees (25.61%), shrubs (20.73%) and climbers (7.32%). The most used plant parts are roots and rhizomes (58.58%). Peltophorum africanum Sond revealed frequency index of greater than 70 and is used in combination with other plants species to treat various pathogenic infections. Most of the plant species reported are used in the treatment of sexually transmitted infections (24), management of HIV-AIDS (15) and stomach ache (14). Our informants indicated that the use of plant medicines in combinations is also applied to cure pathogenic infections. CONCLUSION The current study demonstrate that the indigenous people of Blouberg area, Limpopo Province harbours an important information about the vegetation around them. The plant species are used in the treatment of various pathogenic infections, offers fruits as additional source of food and form integral part of other medicinal products that may in turn produce income.
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Affiliation(s)
- Nkoana Ishmael Mongalo
- College of Agriculture and Environmental Science (CAES) Laboratories, University of South Africa, Private BagX06, Johannesburg, 0710 South Africa
| | - Tshepiso Jan Makhafola
- Research, Innovation & Engagements Portfolio, Mangosuthu University of Technology, P O Box 12363, Durban, 4026 South Africa
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Maroyi A. Nutraceutical and Ethnopharmacological Properties of Vangueria infausta subsp. infausta. Molecules 2018; 23:molecules23051089. [PMID: 29734716 PMCID: PMC6100445 DOI: 10.3390/molecules23051089] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 11/16/2022] Open
Abstract
Vangueria infausta subsp. infausta (VI) is a nutraceutical with plant parts valued in several cultures for its medicinal properties. Traditionally, VI is used against gastro-intestinal disorders, malaria, pneumonia, cough, menstrual problems, parasitic worms, chest complaints, snake bites, infertility, fever, candidiasis and abdominal pains. This study aims to critically summarize the nutraceutical properties, phytochemistry and pharmacology of VI with a view to provide baseline data required for further investigations on this plant. Relevant information on the nutraceutical and ethnopharmacological properties of VI was collected from established scientific databases such as ScienceDirect, SciFinder, PubMed, Google Scholar, Medline, and SCOPUS. Additionally, books, book chapters and conference papers were also consulted to access other important information. Comparative analysis of the literature revealed that VI is an important neutraceutical plant in east and southern Africa, used as herbal medicine in 69% of the countries where the species is native. Phytochemical studies revealed the presence in VI of fatty acids, flavonoids, iridoid lactones and triterpenoids. Based on in vitro and animal studies, the species exhibited antibacterial, antimycobacterial, antifungal, anti-inflammatory, antileishmanial, antioxidant, antiplasmodial, antifeedant and prostaglandin synthesis inhibitory activities. Pharmacological studies have provided supporting evidence for the therapeutic value of VI, however, detailed toxicological and clinical trials are required to assess efficacy of the species.
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Affiliation(s)
- Alfred Maroyi
- Medicinal Plants and Economic Development (MPED) Research Centre, Department of Botany, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
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Suleman S, Beyene Tufa T, Kebebe D, Belew S, Mekonnen Y, Gashe F, Mussa S, Wynendaele E, Duchateau L, De Spiegeleer B. Treatment of malaria and related symptoms using traditional herbal medicine in Ethiopia. JOURNAL OF ETHNOPHARMACOLOGY 2018; 213:262-279. [PMID: 29102764 DOI: 10.1016/j.jep.2017.10.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal plants have always been an integral part of different cultures in Ethiopia in the treatment of different illnesses including malaria and related symptoms. However, due to lack of proper documentation, urbanization, drought, acculturation and deforestation, there is an increased risk of losing this traditional knowledge. Hence, the use of the indigenous knowledge should be well documented and validated for potential future use. AIM OF THE STUDY To gather and document information on medicinal plants which are used in the traditional treatment of malaria and related symptoms in Ethiopia. MATERIALS AND METHODS First, an ethnomedicinal survey of plants was conducted in 17 districts of Jimma zone, the Oromia national regional state of Ethiopia. Jimma zone is malarious and rich in natural flora. A total of 115 traditional healers were interviewed using a semi-structured questionnaire containing personal data of the respondents, and information on medicinal plants used to treat malaria and related symptoms. In addition, a literature search using Medline/PubMed, Google Scholar, ScienceDirect and HINARI was conducted on the indigenous use, in-vitro/in-vivo anti-malarial activity reports, and the chemical characterization of medicinal plants of Ethiopia used against malaria. RESULTS From ethnomedicinal survey, a total of 28 species of plants used in the traditional treatment of malaria and related symptoms in Jimma Zone were collected, identified and documented. In addition, the literature search revealed that 124 medicinal plant species were reported to be traditionally used in the treatment of malaria in Ethiopia. From both ethnomedicinal survey and the literature search, Asteraceae and Fabaceae were the most represented families and Allium sativum L., Carica papaya L., Vernonia amygdalina Del., Lepidium sativum L. and Croton macrostachyus Del. were the most frequently reported plant species for their anti-malarial use. The dominant plant parts used in the preparation of remedies were leaves. About 54% of the medicinal plants documented in the survey have been reported as an anti-malarial plant in the literature search. Furthermore, the in-vitro and in-vivo anti-plasmodial activity reports of extracts from some of plant species were found to support the traditional claim of the documented plants. Moreover, literatures indicate that several secondary metabolites isolated from certain plant species that are traditionally used for the treatment of malaria and related symptoms in Ethiopia demonstrate strong anti-plasmodial activity. CONCLUSIONS The result of the current study showed that traditional knowledge is still playing an important role in the management of malaria and related symptoms in Ethiopia. Allium sativum L., Carica papaya L., Vernonia amygdalina Del., and Lepidium sativum L. are the most commonly reported species as anti-malarial plants and the traditional claim of some species was supported by known anti-plasmodial activity and bioactivity reports. The finding of this study is important in the rational prioritization of plant species which are potentially used for investigating new compounds, which could be efficacious for malaria treatment.
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Affiliation(s)
- Sultan Suleman
- Jimma University Laboratory of Drug Quality (JuLaDQ), Jimma University, PO Box 378, Jimma, Ethiopia; School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia.
| | - Takele Beyene Tufa
- Jimma University Laboratory of Drug Quality (JuLaDQ), Jimma University, PO Box 378, Jimma, Ethiopia; School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia; Drug Quality and Registration (DruQuaR) Group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000 Ghent, Belgium; College of Veterinary Medicine and Agriculture, Addis Ababa University, P.O. Box 34, Bishoftu, Ethiopia.
| | - Dereje Kebebe
- Jimma University Laboratory of Drug Quality (JuLaDQ), Jimma University, PO Box 378, Jimma, Ethiopia; School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia.
| | - Sileshi Belew
- Jimma University Laboratory of Drug Quality (JuLaDQ), Jimma University, PO Box 378, Jimma, Ethiopia; School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia; Drug Quality and Registration (DruQuaR) Group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000 Ghent, Belgium.
| | - Yimer Mekonnen
- Jimma University Laboratory of Drug Quality (JuLaDQ), Jimma University, PO Box 378, Jimma, Ethiopia; School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia.
| | - Fanta Gashe
- School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia.
| | - Seid Mussa
- School of Pharmacy, Jimma University, P.O. Box 378, Jimma, Ethiopia.
| | - Evelien Wynendaele
- Drug Quality and Registration (DruQuaR) Group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000 Ghent, Belgium.
| | - Luc Duchateau
- Department of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium.
| | - Bart De Spiegeleer
- Drug Quality and Registration (DruQuaR) Group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000 Ghent, Belgium.
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Chen GT, Lu Y, Yang M, Li JL, Fan BY. Medicinal uses, pharmacology, and phytochemistry of Convolvulaceae plants with central nervous system efficacies: A systematic review. Phytother Res 2018; 32:823-864. [DOI: 10.1002/ptr.6031] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/17/2017] [Accepted: 12/18/2017] [Indexed: 01/24/2023]
Affiliation(s)
- Guang-Tong Chen
- School of Pharmacy; Nantong University; 19 Qixiu Road Nantong Jiangsu Province 226001 China
| | - Yun Lu
- School of Pharmacy; Nantong University; 19 Qixiu Road Nantong Jiangsu Province 226001 China
| | - Min Yang
- School of Pharmacy; Nantong University; 19 Qixiu Road Nantong Jiangsu Province 226001 China
| | - Jian-Lin Li
- School of Pharmacy; Nantong University; 19 Qixiu Road Nantong Jiangsu Province 226001 China
| | - Bo-Yi Fan
- School of Pharmacy; Nantong University; 19 Qixiu Road Nantong Jiangsu Province 226001 China
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Isabel M, Jossias AD, Maria JS, Natasha R, Isabel. Woody species from the Mozambican Miombo woodlands: A review on their ethnomedicinal uses and pharmacological potential. ACTA ACUST UNITED AC 2018. [DOI: 10.5897/jmpr2017.6540] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Félix-Silva J, Silva-Junior AA, Zucolotto SM, Fernandes-Pedrosa MDF. Medicinal Plants for the Treatment of Local Tissue Damage Induced by Snake Venoms: An Overview from Traditional Use to Pharmacological Evidence. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:5748256. [PMID: 28904556 PMCID: PMC5585606 DOI: 10.1155/2017/5748256] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 07/09/2017] [Indexed: 01/21/2023]
Abstract
Snakebites are a serious problem in public health due to their high morbimortality. Most of snake venoms produce intense local tissue damage, which could lead to temporary or permanent disability in victims. The available specific treatment is the antivenom serum therapy, whose effectiveness is reduced against these effects. Thus, the search for complementary alternatives for snakebite treatment is relevant. There are several reports of the popular use of medicinal plants against snakebites worldwide. In recent years, many studies have been published giving pharmacological evidence of benefits of several vegetal species against local effects induced by a broad range of snake venoms, including inhibitory potential against hyaluronidase, phospholipase, proteolytic, hemorrhagic, myotoxic, and edematogenic activities. In this context, this review aimed to provide an updated overview of medicinal plants used popularly as antiophidic agents and discuss the main species with pharmacological studies supporting the uses, with emphasis on plants inhibiting local effects of snake envenomation. The present review provides an updated scenario and insights into future research aiming at validation of medicinal plants as antiophidic agents and strengthens the potentiality of ethnopharmacology as a tool for design of potent inhibitors and/or development of herbal medicines against venom toxins, especially local tissue damage.
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Affiliation(s)
- Juliana Félix-Silva
- Laboratório de Tecnologia & Biotecnologia Farmacêutica (TecBioFar), Faculdade de Farmácia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Arnóbio Antônio Silva-Junior
- Laboratório de Tecnologia & Biotecnologia Farmacêutica (TecBioFar), Faculdade de Farmácia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Silvana Maria Zucolotto
- Grupo de Pesquisa em Produtos Naturais Bioativos (PNBio), Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Matheus de Freitas Fernandes-Pedrosa
- Laboratório de Tecnologia & Biotecnologia Farmacêutica (TecBioFar), Faculdade de Farmácia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
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Exploring Alternative Use of Medicinal Plants for Sustainable Weed Management. SUSTAINABILITY 2017. [DOI: 10.3390/su9081468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Teklehaymanot T. An ethnobotanical survey of medicinal and edible plants of Yalo Woreda in Afar regional state, Ethiopia. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2017; 13:40. [PMID: 28679438 PMCID: PMC5499056 DOI: 10.1186/s13002-017-0166-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/20/2017] [Indexed: 05/03/2023]
Abstract
BACKGROUND The Afar people inhabit the sub-arid and arid part of Ethiopia. Recurrent drought and invasive encroaching plants are taking out plants that have cultural importance, and threaten the biodiversity and the associated traditional knowledge. Thus, the aim of the current study is to conduct an ethnobotanical survey and document medicinal and edible plants in Yalo Woreda in Afar regional state. METHODS A cross-sectional ethnobotanical study was carried out in eight kebeles of Yalo Woreda from October 2015 to December 2016. One hundred sixty informants were selected using purposive sampling. The data on diseases, medicinal and edible plants were collected using semi-structure interview and group discussion. The statistical methods, informant consensus factor, fidelity level, and preference ranking were conducted to analyze the data. RESULTS One hundred and six plants were reported; gender and age differences had implication on the number of plants reported by informants. The knowledge of medicinal plants among informants of each kebele was not different (p < 0.5) and was not associated in particular with the religious establishment in the kebeles (informant*kebeles, Eta square = 0.19). Family Fabaceae was the major plant species, and shrubs (44%) were dominant plants reported. Leaf (52.94%) and oral (68%) were primary plant part used for remedy preparation and route of application, respectively. The plants with low fidelity values Indigofera articulata (0.25), Cadaba farinosa (0.22), Cadaba rotundifolia (0.19), and Acalypha fruticosa (0.15) were used to treat the category of diseases with high informant consensus value (0.69). Sixteen edible plants were identified that were consumed during wet and dry seasons. Balanites aegyptiaca, Balanites rotundifolia, and Dobera glabra were 'famine food' that were collected and stored for years. CONCLUSION People in Yalo Woreda are more dependent on natural resources of the area for their livelihood. The threat of climatic change and encroaching invasive plants on medicinal and edible plants affects the traditional use of plants in the Yalo Woreda. The conservation of the plants in the home garden and natural habitat and integration of edible plants into agroforestry development programs in sub-arid and arid regions has to be encouraged to conserve plants of medical and economic importance.
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Affiliation(s)
- Tilahun Teklehaymanot
- Endod, and Other Medicinal Plants Research Unit, Aklilu Lemma Institute of Pathobiology, Addis Ababa University, P. O. Box, 56478, Addis Ababa, Ethiopia.
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Youmsi RDF, Fokou PVT, Menkem EZ, Bakarnga-Via I, Keumoe R, Nana V, Boyom FF. Ethnobotanical survey of medicinal plants used as insects repellents in six malaria endemic localities of Cameroon. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2017; 13:33. [PMID: 28595645 PMCID: PMC5465592 DOI: 10.1186/s13002-017-0155-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 04/30/2017] [Indexed: 05/12/2023]
Abstract
BACKGROUND The combined efforts to combat outdoor/indoor transmission of malaria parasites are hampered by the emerging vector resistance in a wide variety of malaria-endemic settings of Africa and the rest of the world, stressing the need for alternative control measures. This study aimed at documenting insect's repellent plant species used by indigenous populations of 6 localities of East, South, West and Centre regions of Cameroon. METHODS Information was gathered through face-to-face interviews guided by a semi-structured questionnaire on the knowledge of medicinal plants with insect repellent properties. RESULTS A total of 182 informants aged from 25 to 75 years were recruited by convenience from May to June 2015. The informants had general knowledge about insects' repellent plants (78.6%). A total of 16 plant species were recorded as insects' repellents with 50% being trees. The most cited plants were Canarium schweinfurthii (Burseraceae) (in four localities, 58/182), Elaeis guineensis (Arecaceae) (in three localities, 38/182), Chromolaena odorata (Compositae) (16/182) and Citrus limon (Rutaceae) (11/182) in two localities each. Among the repellent plant species recorded, 50% were reported to be burnt to produce in-house smokes, 31.2% were mashed and applied on the body, and 18.8% were hung in the houses. The leaf was the most commonly used plant part (52.9%), followed by the bark (17.6%). CONCLUSIONS This study has shown that rural populations of the 6 targeted localities possess indigenous knowledge on repellent plants that are otherwise cost-effective and better choice for repelling insects including malaria-transmitting mosquitoes. Meanwhile, such practices should be validated experimentally and promoted as sustainable malaria transmission control tools in the remotely located communities.
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Affiliation(s)
- Roger Ducos Fokouo Youmsi
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Patrick Valère Tsouh Fokou
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Elisabeth Zeuko’o Menkem
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Issakou Bakarnga-Via
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
- Department of Biology, Faculty of Science, University of Adam Barka-Abeche, P.O. Box 1173, Abeche, Chad
| | - Rodrigue Keumoe
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Victor Nana
- National Herbarium of Cameroon, P.O. Box 1601, Yaoundé, Cameroon
| | - Fabrice Fekam Boyom
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Zank S, Hanazaki N. The coexistence of traditional medicine and biomedicine: A study with local health experts in two Brazilian regions. PLoS One 2017; 12:e0174731. [PMID: 28414735 PMCID: PMC5393556 DOI: 10.1371/journal.pone.0174731] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 03/14/2017] [Indexed: 02/04/2023] Open
Abstract
This study investigated the combined use of traditional medicine and biomedicine by local experts in Chapada do Araripe communities (Ceará State) and maroon communities (Santa Catarina State), Brazil. The objective was to understand the perception of local health specialists regarding the number of healers, demand for healers and use of medicinal plants, and the dependence of different environments to obtain such plants. We also aimed to understand the role of medicinal plants to treat different categories of diseases and if there is a complementary use of medicinal plants and allopathic biomedicine, according to the context of each group. The research was conducted with local health specialists that answered structured interviews, created free lists and participated in guided tours to collect cited plants. Sixty-six local health specialists were identified in the Araripe communities and 22 specialists in the maroon communities. In the maroon communities, a greater number of specialists thought there was a decrease in the number and demand for healers, as well as the use of medicinal plants, due to changes in traditional livelihoods, since they are located in a region where the effects of the modernization were more intense. In the Chapada do Araripe communities the specialists knew more plants extracted from native vegetation, whereas in the maroon communities cultivated plants were better known, which may reflect the environmental conditions and the history of each region. Medicinal plants are preferred to treat simpler health problems that do not require medical care, such as gastrointestinal problems, general pain, flues and colds. The biomedicine is used principally for problems with blood pressure, general pains and endocrine and nutritional diseases. Even with the particularities of each region, in general the use of medicinal plants and biomedicines occurred in a complementary form in both regions; however, this coexistence may result from these different contexts. This study also found that there was knowledge and appreciation for traditional health practices in both regions.
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Affiliation(s)
- Sofia Zank
- Laboratory of Human Ecology and Ethnobotany, Department of Ecology and Zoology, Federal University of Santa Catarina, Trindade, Florianópolis, Santa Catarina, Brazil
- * E-mail:
| | - Natalia Hanazaki
- Laboratory of Human Ecology and Ethnobotany, Department of Ecology and Zoology, Federal University of Santa Catarina, Trindade, Florianópolis, Santa Catarina, Brazil
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Ndhlovu DN, Masika PJ. IN VITRO EFFICACY OF EXTRACTS FROM PLANTS USED BY SMALL-HOLDER FARMERS IN THE TREATMENT OF DERMATOPHILOSIS IN CATTLE. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2017; 14:263-272. [PMID: 28573243 PMCID: PMC5446452 DOI: 10.21010/ajtcam.v14i2.28] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background: Bovine dermatophilosis, an important skin disease of cattle caused by Dermatophilus congolensis, negatively impacts the livelihoods of small-holder farmers in Zimbabwe. This impact is through, morbidity, loss of draught animal power, costs incurred to manage the disease, losses associated with devalued damaged hides and the resultant culling of some of the affected cattle. Due to the inaccessibility of conventional drugs to manage bovine dermatophilosis, farmers have been reported to use local medicinal plants to manage the disease. The aim of the study was to evaluate the in vitro antimicrobial activities of three plants that small-holder farmers in Zimbabwe used to manage bovine dermatophilosis. Methods: Dried plant materials were ground into powder and extracted individually using, water, 80 % acetone and 80 % methanol. The antimicrobial properties of the plants were evaluated against two Gram-negative (Escherichia coli and Pseudomonas aeruginosa) and one Gram-positive (Staphylococcus aureus) reference bacterial strains. They were further evaluated against a field isolate of Dermatophilus congolensis. The assays used were the disc diffusion, minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). Results: Acetone and methanol extracts had superior inhibitory activities than did those of water. Pterocarpus angolensis DC extracts had better inhibitory properties with absolute MIC values of 0.156 – 5 mg/ml, Cissus Quadrangularis L had MIC values in the range 0.156 – 5 mg/ml while that of Catunaregam spinosa Thunb, Terveng was 0.156 – 10 mg/ml. Dermatophilus congolensis was more sensitive to Pterocarpus angolensis DC average MIC = 0.63 mg/ml than to Cissus quadrangularis L average MIC = 1.25 mg/ml and Catunaregam. spinosa Thunb, Terveng average MIC = 2.08 mg/ml. Conclusion: These results suggest the potential antibacterial activities of extracts of the three plants and hence farmers are, in a way, justified in using the plants. Better results (lower MIC) could be obtained by extracting and evaluating pure active compounds of the plants.
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Affiliation(s)
- Daud N Ndhlovu
- Department of Livestock and Pasture Science, University of Fort Hare, P. Bag X 1314, Alice, 5700 RSA, Faculty of Veterinary Science, University of Zimbabwe, MP 167 Mount Pleasant, Harare, Zimbabwe
| | - Patrick J Masika
- Department of Livestock and Pasture Science, University of Fort Hare, P. Bag X 1314, Alice, 5700 RSA, Fort Cox College of Agriculture and Forestry, P.O. Box 2187, King Williams Town, 5600, Republic of South Africa
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