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Mbosso Teinkela JE, Oumarou H, Siwe Noundou X, Meyer F, Megalizzi V, Hoppe HC, Krause RWM, Wintjens R. Evaluation of in vitro antiplasmodial, antiproliferative activities, and in vivo oral acute toxicity of Spathodea campanulata flowers. SCIENTIFIC AFRICAN 2023; 21:e01871. [DOI: 10.1016/j.sciaf.2023.e01871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024] Open
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Świątek Ł, Sieniawska E, Sinan KI, Zengin G, Uba AI, Bene K, Maciejewska-Turska M, Rajtar B, Polz-Dacewicz M, Aktumsek A. Bridging the Chemical Profiles and Biological Effects of Spathodea campanulata Extracts: A New Contribution on the Road from Natural Treasure to Pharmacy Shelves. Molecules 2022; 27:molecules27154694. [PMID: 35897865 PMCID: PMC9330408 DOI: 10.3390/molecules27154694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 02/05/2023] Open
Abstract
Spathodea campanulata is an important medicinal plant with traditional uses in the tropical zone. In the current work, we aimed to determine the chemical profiles and biological effects of extracts (methanolic and infusion (water)) from the leaves and stem bark of S. campanulata. The chemical components of the tested extracts were identified using LC-ESI-QTOF-MS. Biological effects were tested in terms of antioxidant (radical scavenging, reducing power, and metal chelating), enzyme inhibitory (cholinesterase, amylase, glucosidase, and tyrosinase), antineoplastic, and antiviral activities. Fifty-seven components were identified in the tested extracts, including iridoids, flavonoids, and phenolic acids as the main constituents. In general, the leaves-MeOH extract was the most active in the antioxidant assays (DPPH, ABTS, CUPRAC, FRAP, metal chelating, and phosphomolybdenum). Antineoplastic effects were tested in normal (VERO cell line) and cancer cell lines (FaDu, HeLa, and RKO). The leaf infusion, as well as the extracts obtained from stem bark, showed antineoplastic activity (CC50 119.03–222.07 µg/mL). Antiviral effects were tested against HHV-1 and CVB3, and the leaf methanolic extract (500 µg/mL) exerted antiviral activity towards HHV-1, inhibiting the viral-induced cytopathic effect and reducing the viral infectious titre by 5.11 log and viral load by 1.45 log. In addition, molecular docking was performed to understand the interactions between selected chemical components and viral targets (HSV-1 DNA polymerase, HSV-1 protease, and HSV-1 thymidine kinase). The results presented suggest that S. campanulata may be a bright spot in moving from natural sources to industrial applications, including novel drugs, cosmeceuticals, and nutraceuticals.
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Affiliation(s)
- Łukasz Świątek
- Department of Virology with SARS Laboratory, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (B.R.); (M.P.-D.)
- Correspondence: (Ł.Ś.); (G.Z.)
| | - Elwira Sieniawska
- Department of Natural Products Chemistry, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Kouadio Ibrahime Sinan
- Department of Biology, Science Faculty, Selcuk University, 42130 Konya, Turkey; (K.I.S.); (A.A.)
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, 42130 Konya, Turkey; (K.I.S.); (A.A.)
- Correspondence: (Ł.Ś.); (G.Z.)
| | - Abdullahi Ibrahim Uba
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Kadir Has University, Istanbul 34083, Turkey;
| | - Kouadio Bene
- Laboratoire de Botanique et Phytothérapie, Unité de Formation et de Recherche Sciences de la Nature, Université Nangui Abrogoua, Abidjan 00225, Côte d’Ivoire;
| | | | - Barbara Rajtar
- Department of Virology with SARS Laboratory, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (B.R.); (M.P.-D.)
| | - Małgorzata Polz-Dacewicz
- Department of Virology with SARS Laboratory, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (B.R.); (M.P.-D.)
| | - Abdurrahman Aktumsek
- Department of Biology, Science Faculty, Selcuk University, 42130 Konya, Turkey; (K.I.S.); (A.A.)
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Fokoua AR, Ndjenda MK, Kaptué Wuyt A, Tatsinkou Bomba FD, Dongmo AK, Chouna R, Nkeng-Efouet PA, Nguelefack TB. Anticonvulsant effects of the aqueous and methanol extracts from the stem bark of Psychotria camptopus Verdc. (Rubiacaea) in rats. JOURNAL OF ETHNOPHARMACOLOGY 2021; 272:113955. [PMID: 33610704 DOI: 10.1016/j.jep.2021.113955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/08/2021] [Accepted: 02/14/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE The decoction from the stem bark of Psychotria camptopus (Rubiaceae) is used in the Cameroonian pharmacopoeia to treat neurological pathologies including epilepsy. AIM The present work was undertaken to study the anticonvulsant properties of the aqueous (AE) and methanol (ME) extracts from the stem bark of P. camptopus in acute models of epileptic seizures in Wistar rats. METHOD AE and ME were obtained by decoction and maceration of the stem bark powder in water and methanol, respectively. They were tested orally at the doses of 40, 80 and 120 mg/kg, on the latency of onset and duration of epileptic seizures induced by pentylene tetrazole (PTZ, 70 mg/kg, i.p.). The kinetic effect of both extracts at 120 mg/kg was evaluated. Their effects on diazepam (50 mg/kg) induced sleep and strychnine (STR, 2.5 mg/kg, i.p.) induced seizures were determined. ME was further tested on picrotoxin (PIC, 7.5 mg/kg, i.p.) and thiosemicarbazide (TSC, 50 mg/kg, i.p.) induced seizure models. The phytochemical composition of ME was assessed using LC-MS method, as well as its acute toxicity. RESULTS AE and ME significantly (p < 0.001) reduced the duration of seizures in both PTZ and STR models. Their maximal effect was observed at 1 h after administration, though their effect at 120 mg/kg was maintained (p < 0.05) up to 24 h post-treatment. Both extracts significantly (p < 0.01) reduced sleep duration. ME significantly (p < 0.001) increased the latency of rat death on PIC-induced convulsions. In TSC rats, ME significantly (p < 0.001) delayed the latency to the first convulsion, and decreased the duration and frequency of convulsions. ME showed no acute toxicity while its phytochemical screening revealed the presence of two flavonoids (Rutin and Butin), two triterpenoid saponins (Psycotrianoside B and Bauerenone) and four alkaloids (10-Hydroxy-antirhine, 10-hydroxy-iso-deppeaninol, Emetine and Hodkinsine). In conclusion, AE and ME from the stem bark of P. camptopus have comparable anticonvulsant properties. The effect of ME is likely due to the presence of flavonoids and alkaloid and the activation of GABA pathway. These results further justify and support the use of P. camptopus in traditional medicine for the treatment of epilepsy.
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Affiliation(s)
- Aliance Romain Fokoua
- Research Unit of Neuro-Inflammatory and Cardiovascular Pharmacology, Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon; Fondation Alango, Center for African Phytomedicine, P.O. Box, 371, Dschang, Cameroon.
| | - Magloire K Ndjenda
- Research Unit of Neuro-Inflammatory and Cardiovascular Pharmacology, Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Adeline Kaptué Wuyt
- Research Unit of Neuro-Inflammatory and Cardiovascular Pharmacology, Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Francis Desire Tatsinkou Bomba
- Research Unit of Neuro-Inflammatory and Cardiovascular Pharmacology, Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Appolinaire Kene Dongmo
- Laboratory of Applied and Environmental Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon; Fondation Alango, Center for African Phytomedicine, P.O. Box, 371, Dschang, Cameroon.
| | - Rodolphe Chouna
- Laboratory of Applied and Environmental Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon; Fondation Alango, Center for African Phytomedicine, P.O. Box, 371, Dschang, Cameroon.
| | - Pepin Alango Nkeng-Efouet
- Laboratory of Applied and Environmental Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon; Fondation Alango, Center for African Phytomedicine, P.O. Box, 371, Dschang, Cameroon.
| | - Télesphore Benoît Nguelefack
- Research Unit of Neuro-Inflammatory and Cardiovascular Pharmacology, Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
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Begum A, Biswas P, Shahed-Al-Mahmud M. Methanol extract of Spathodea campanulata P. (Beauv.) leaves demonstrate sedative and anxiolytic like actions on swiss albino mice. CLINICAL PHYTOSCIENCE 2020. [DOI: 10.1186/s40816-020-00182-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Spathodea campanulata P. Beauv. (Bignoniaceae) is a very common plant in Bangladesh which is locally called “Rudrapalash”. In Nigeria leaves extract of S. campanulata has a reputation of being used as an anticonvulsant. In this connection, the aim of this study was to investigate other neuropharmacological effects like sedative and anxiolytic activities of methanol extract of S. campanulata (MESC) leaves in different mice tests.
Methods
To assay sedative activity mice were subjected to open field and hole-cross test, whereas anxiolytic activity was checked by the elevated-plus maze, light-dark box, and hole-board test. For each test, mice were divided into control group (deionized water, 0.1 ml/mouse, p.o.), standard group (diazepam, 1 mg/kg, i.p) and three test groups (200, 400 and 600 mg/kg MESC, p.o.). The acute toxicity test and phytochemical screening of MESC were performed before the pharmacological study.
Results
The result demonstrated strong sedative and anxiolytic activity of MESC in a dose-dependent manner. All doses of MESC (200, 400 & 600 mg/kg) reduced the number of (square & hole) crossed by mice in both open field and hole cross tests (p < 0.001). On the other hand, in elevated plus-maze and light-dark box test mice opted to stay more in open arms and light box instead of close arms and dark box (p < 0.001). In hole-board test MESC (200, 400 & 600 mg/kg) elevated the number of head dipping (p < 0.001) dose-dependently. Phytochemical investigation indicated the presence of alkaloid, saponin, glycoside, carbohydrate, flavonoid, and tannin in MESC.
Conclusion
The experimental results explicit that S. campanulata leaves possess sedative and anxiolytic activities, hence suggest further chemical investigation to identify specific phytoconstituents responsible for sedative and anxiolytic effects.
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Ngnameko CR, Marchetti L, Zambelli B, Quotadamo A, Roncarati D, Bertelli D, Njayou FN, Smith SI, Moundipa PF, Costi MP, Pellati F. New Insights into Bioactive Compounds from the Medicinal Plant Spathodea campanulata P. Beauv. and Their Activity against Helicobacter pylori. Antibiotics (Basel) 2020; 9:antibiotics9050258. [PMID: 32429263 PMCID: PMC7277392 DOI: 10.3390/antibiotics9050258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 12/24/2022] Open
Abstract
The medicinal plant Spathodea campanulata P. Beauv. (Bignoniaceae) has been traditionally applied for the prevention and treatment of diseases of the kidney and urinary system, the skin, the gastrointestinal tract, and inflammation in general. The present work shows for the first time how chemical components from this plant inhibit Helicobacter pylori growth by urease inhibition and modulation of virulence factors. The crude extract and the main fractions of S. campanulata bark were tested on H. pylori isolated strains and the active ones were further fractionated. Fractions and sub-fractions of the plant crude extract were characterized by ultra-high-performance liquid chromatographic tandem high resolution-mass spectrometry detection (UHPLC-HRMS). Several phenolics and triterpenoids were identified. Among the sub-fractions obtained, SB2 showed the capacity to inhibit H. pylori urease in a heterologous bacterial model. One additional sub-fraction (SE3) was able to simultaneously modulate the expression of two adhesins (HopZ and BabA) and one cytotoxin (CagA). The flavonol kaempferol was identified as the most interesting compound that deserves further investigation as a new hit for its capacity to modulate H. pylori virulence factors.
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Affiliation(s)
- Corinne Raïssa Ngnameko
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
| | - Lucia Marchetti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Doctorate School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Barbara Zambelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (B.Z.); (D.R.)
| | - Antonio Quotadamo
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Doctorate School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Davide Roncarati
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (B.Z.); (D.R.)
| | - Davide Bertelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
| | - Frederic Nico Njayou
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
| | - Stella I. Smith
- Nigerian Institute of Medical Research, PMB 2013, Yaba, Lagos 100001, Nigeria;
| | - Paul F. Moundipa
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
- Correspondence: (P.F.M.); (F.P.); Tel.: +237-222-314-527 (P.F.M.); +39-059-2058565 (F.P.)
| | - Maria Paola Costi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Correspondence: (P.F.M.); (F.P.); Tel.: +237-222-314-527 (P.F.M.); +39-059-2058565 (F.P.)
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Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2413-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Bading Taika B, Bouckandou M, Souza A, Bourobou Bourobou HP, MacKenzie LS, Lione L. An overview of anti-diabetic plants used in Gabon: Pharmacology and toxicology. JOURNAL OF ETHNOPHARMACOLOGY 2018; 216:203-228. [PMID: 29305175 DOI: 10.1016/j.jep.2017.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 12/24/2017] [Accepted: 12/25/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The management of diabetes mellitus management in African communities, especially in Gabon, is not well established as more than 60% of population rely on traditional treatments as primary healthcare. The aim of this review was to collect and present the scientific evidence for the use of medicinal plants that are in currect by Gabonese traditional healers to manage diabetes or hyperglycaemia based here on the pharmacological and toxicological profiles of plants with anti-diabetic activity. There are presented in order to promote their therapeutic value, ensure a safer use by population and provide some bases for further study on high potential plants reviewed. MATERIALS AND METHODS Ethnobotanical studies were sourced using databases such as Online Wiley library, Pubmed, Google Scholar, PROTA, books and unpublished data including Ph.D. and Master thesis, African and Asian journals. Keywords including 'Diabetes', 'Gabon', 'Toxicity', 'Constituents', 'hyperglycaemia' were used. RESULTS A total of 69 plants currently used in Gabon with potential anti-diabetic activity have been identified in the literature, all of which have been used in in vivo or in vitro studies. Most of the plants have been studied in human or animal models for their ability to reduce blood glucose, stimulate insulin secretion or inhibit carbohydrates enzymes. Active substances have been identified in 12 out of 69 plants outlined in this review, these include Allium cepa and Tabernanthe iboga. Only eight plants have their active substances tested for anti-diabetic activity and are suitables for further investigation. Toxicological data is scarce and is dose-related to the functional parameters of major organs such as kidney and liver. CONCLUSION An in-depth understanding on the pharmacology and toxicology of Gabonese anti-diabetic plants is lacking yet there is a great scope for new treatments. With further research, the use of Gabonese anti-diabetic plants is important to ensure the safety of the diabetic patients in Gabon.
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Affiliation(s)
- B Bading Taika
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK; IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon.
| | - M Bouckandou
- IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon
| | - A Souza
- Institut National Supérieur d'Agronomie et de Biotechnologies (INSAB), Franceville, Gabon
| | - H P Bourobou Bourobou
- IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon
| | - L S MacKenzie
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK
| | - L Lione
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK
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Mbosso Teinkela JE, Assob Nguedia JC, Meyer F, Vouffo Donfack E, Lenta Ndjakou B, Ngouela S, Tsamo E, Adiogo D, Guy Blaise Azebaze A, Wintjens R. In vitro antimicrobial and anti-proliferative activities of plant extracts from Spathodea campanulata, Ficus bubu, and Carica papaya. PHARMACEUTICAL BIOLOGY 2016; 54:1086-95. [PMID: 26799575 PMCID: PMC11132909 DOI: 10.3109/13880209.2015.1103273] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 07/24/2015] [Accepted: 09/25/2015] [Indexed: 06/05/2023]
Abstract
CONTEXT African medicinal plants represent a prominent source of new active substances. In this context, three plants were selected for biological investigations based on their traditional uses. OBJECTIVE The antimicrobial and anti-proliferative features of three plants used for medicinal purpose were evaluated. MATERIALS AND METHODS The antimicrobial activities of methanol extracts of Ficus bubu Warb. (Moraceae) stem bark and leaves, of Spathodea campanulata P. Beauv. (Bignoniaceae) flowers, as well as those of Carica papaya Linn. (Caricaceae) latex, were determined using the microbroth dilution method against a set of bacteria and fungi pathogens including: Enterococcus faecalis, Staphylococcus aureus, S. saprophyticus, S. epidermididis, Escherichia coli, Klebsiella pneumonia, Salmonella typhimurium, Candida albicans, and Trichophyton rubrum. The tested concentrations of extracts ranged from 2500.0 to 2.4 μg/mL and MIC values were evaluated after 24 h incubation at 37 °C. Subsequently, MTT assay was used to estimate anti-proliferative activity of these methanol extracts and of F. bubu latex on three human cancer cell lines (U373 glioblastoma, A549 NSCLC, and SKMEL-28 melanoma). RESULTS The methanol extract of F. bubu stem bark exhibited the highest antimicrobial activity against C. albicans with a MIC value of 9.8 μg/mL, while the F. bubu latex and the methanol extract of F. bubu leaves induced significant anti-proliferative activity against lung (IC50 values of 10 and 14 μg/mL, respectively) and glioma (IC50 values of 13 and 16 μg/mL, respectively) cancer cells. CONCLUSION These results indicate that effective drugs could be derived from the three studied plants.
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Affiliation(s)
- Jean Emmanuel Mbosso Teinkela
- Département Des Sciences Biologiques, Faculté De Médecine Et Des Sciences Pharmaceutiques (FMSP), Université De Douala, Douala, Cameroun
- Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté De Pharmacie, Université Libre De Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard Du Triomphe, Brussels, Belgium
- Laboratoire De Chimie Bio-Organique, Analytique Et Structurale, Département De Chimie, Faculté Des Sciences, Université De Douala, Douala, Cameroun
| | | | - Franck Meyer
- Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté De Pharmacie, Université Libre De Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard Du Triomphe, Brussels, Belgium
| | - Erik Vouffo Donfack
- Laboratoire De Substances Naturelles Et Synthèse Organique, Département De Chimie Organique, Faculté Des Sciences, Université De Yaoundé I, Yaoundé, Cameroun
| | - Bruno Lenta Ndjakou
- Department of Chemistry, Higher Teachers’ Training College, University of Yaoundé 1, P.O. Box 47, Yaoundé, Cameroun
| | - Silvère Ngouela
- Laboratoire De Substances Naturelles Et Synthèse Organique, Département De Chimie Organique, Faculté Des Sciences, Université De Yaoundé I, Yaoundé, Cameroun
| | - Etienne Tsamo
- Laboratoire De Substances Naturelles Et Synthèse Organique, Département De Chimie Organique, Faculté Des Sciences, Université De Yaoundé I, Yaoundé, Cameroun
| | - Dieudonné Adiogo
- Département Des Sciences Biologiques, Faculté De Médecine Et Des Sciences Pharmaceutiques (FMSP), Université De Douala, Douala, Cameroun
| | - Anatole Guy Blaise Azebaze
- Laboratoire De Chimie Bio-Organique, Analytique Et Structurale, Département De Chimie, Faculté Des Sciences, Université De Douala, Douala, Cameroun
| | - René Wintjens
- Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté De Pharmacie, Université Libre De Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard Du Triomphe, Brussels, Belgium
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Update on Medicinal Plants with Potency on Mycobacterium ulcerans. BIOMED RESEARCH INTERNATIONAL 2015; 2015:917086. [PMID: 26779539 PMCID: PMC4686629 DOI: 10.1155/2015/917086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 11/17/2015] [Indexed: 11/17/2022]
Abstract
Mycobacterium ulcerans disease has been a serious threat for people living in rural remote areas. Due to poverty or availability of traditional medicine these populations rely on herbal remedies. Currently, data on the anti-Mycobacterium ulcerans activity of plants, so far considered community-based knowledge, have been scientifically confirmed, concomitantly with some medicinal plants used to treat infectious diseases in general. Products derived from plants usually responsible for the biological properties may potentially control Mycobacterium ulcerans disease; numerous studies have aimed to describe the chemical composition of these plant antimicrobials. Thus, the present work provides the first compilation of medicinal plants that demonstrated inhibitory potential on Mycobacterium ulcerans. This work shows that the natural products represent potential alternatives to standard therapies for use as curative medicine for Mycobacterium ulcerans disease.
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Tsouh Fokou PV, Nyarko AK, Appiah-Opong R, Tchokouaha Yamthe LR, Addo P, Asante IK, Boyom FF. Ethnopharmacological reports on anti-Buruli ulcer medicinal plants in three West African countries. JOURNAL OF ETHNOPHARMACOLOGY 2015; 172:297-311. [PMID: 26099634 DOI: 10.1016/j.jep.2015.06.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 06/12/2015] [Accepted: 06/14/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Buruli ulcer (BU) is the third most common mycobacterial infection in the world, after tuberculosis and leprosy and has recently been recognized as an important emerging disease. This disease is common in West Africa where more than 99% of the burden is felt and where most affected people live in remote areas with traditional medicine as primary or only option. Reports indicate that the ethnopharmacological control approach of the disease in such settings has shown promise. However, no or very few compilations of traditional knowledge in using medicinal plants to treat BU have been attempted so far. This review aimed to record medicinal plants used traditionally against BU in three countries in West Africa: Ivory Coast, Ghana and Benin and for which ethnopharmacological knowledge supported by pharmacological investigations has been reported. The information recorded in this review will support further pharmacological research to develop appropriate drugs for a better BU control. MATERIAL AND METHODS A systematic review of the literature on ethnobotanical use and anti-BU activity of plants reported for BU treatment was performed. The approach consisted to search several resources, including Technical Reports, Books, Theses, Conference proceedings, web-based scientific databases such as publications on PubMed, Science direct, Springer, ACS, Scielo, PROTA, Google and Google scholar reporting ethnobotanical surveys and screening of natural products against Mycobacterium ulcerans. This study was limited to papers and documents published either in English or French reporting ethnopharmacological knowledge in BU treatment or pharmacological potency in vitro. This review covered the available literature up to December 2014. RESULTS The majority of reports originated from the three most affected West African countries (Cote d'Ivoire, Ghana and Benin). Though, 98 plant species belonging to 48 families have been identified as having anti-BU use, many have received no or little attention. Most of the pharmacological studies were performed only on 54 species. To a lesser extent, ethnopharmacological knowledge was validated in vitro for only 13 species. Of those, seven species including Ricinus comminus, Cyperus cyperoides (cited as Mariscus alternifolius), Nicotiana tabacum, Mangifera indica, Solanum rugosum, Carica papaya, and Moringa oleifera demonstrated efficacy in hospitalised BU patients. Four isolated and characterized compounds were reported to have moderate bioactivity in vitro against M. ulcerans. CONCLUSIONS This review compiles for the first time ethnopharmacologically useful plants against BU. The phamacological potential of 13 of them has been demonstrated in vitro and support BU evidence-based traditional medicines. In addition, 7 species showed activity in BU patients and have emerged as a promising source of the traditional medicine for treatment of BU. Yet, further safety and efficacy study should be initiated prior any approval as alternative therapy. Overall, a huge gap in knowledge appeared, suggesting further well-planned and detailed investigations of the in vitro, in vivo, and safety properties of the claimed anti-BU plants. Therefore, plants with medicinal potential should be scrutinized for biologically active compounds, using bioassay-guided fractionation approach to provide new insights to find novel therapeutics for BU control.
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Affiliation(s)
- Patrick Valere Tsouh Fokou
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, PO Box LG 581, Accra, Ghana; Antimicrobial Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé 1, PO 812, Yaoundé, Cameroon.
| | - Alexander Kwadwo Nyarko
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, PO Box LG 581, Accra, Ghana; Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43, Legon, Ghana
| | - Regina Appiah-Opong
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, PO Box LG 581, Accra, Ghana
| | - Lauve Rachel Tchokouaha Yamthe
- Antimicrobial Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé 1, PO 812, Yaoundé, Cameroon; Institute of Medical Research and Medicinal Plants Studies (IMPM), PO Box 6163, Yaoundé, Cameroon
| | - Phyllis Addo
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, PO Box LG 581, Accra, Ghana
| | - Isaac K Asante
- Department of Botany, Faculty of Science, University of Ghana, PO Box LG 55, Legon, Ghana
| | - Fabrice Fekam Boyom
- Antimicrobial Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé 1, PO 812, Yaoundé, Cameroon
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