1
|
Mintsa ME, Obiang CS, Choque E, Dussert E, Ravallec R, Ondo JP, Belloncle C, Kumulungui BS, Mesnard F. Antimicrobial Plants Used by Fang Populations and Phytochemical Profiling of Erismadelphus exsul. Molecules 2024; 29:3503. [PMID: 39124907 PMCID: PMC11314276 DOI: 10.3390/molecules29153503] [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: 06/25/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Gabon has a rich flora, many species of which are used in traditional medicine. However, little research has been carried out on this wealth. An ethnopharmacological survey in the Fang language was carried out among traditional practitioners to collect antimicrobial medicinal plants. Phytochemical profiling of ethanolic and methanolic extracts from Erismadelphus exsul Mildbr leaves was carried out using HPLC-ESI-Q/TOF and a molecular network approach. Antibacterial activity was assessed with disk diffusion and microdilution methods, antioxidant activity via DPPH and FRAP methods, and in vitro cell viability via Cell Counting Kit-8. A total of 21 medicinal plants were collected, grouped into 10 families, of which the Fabaceae is the most represented. Erismadelphus exsul was chosen for chemical and biological studies due to its citation frequency (RCF = 0.59) and the absence of previous phytochemical studies. These studies revealed 4 major families of natural compounds and annotated 19 compounds for the first time. The crude leaf extract showed significant antioxidant and antibacterial activity. Cytotoxicity studies showed that the leaves were not cytotoxic, unlike the bark. This study underlines the importance of preserving the ancestral knowledge of the Fang populations, while showing promising results for Erismadelphus exsul.
Collapse
Affiliation(s)
- Morel Essono Mintsa
- UMRt BioEcoAgro 1158-INRAE, BIOPI, Université de Picardie Jules Verne, 1 Rue des Louvels, 80000 Amiens, France;
- Laboratoire Innovation Matériau Bois Habitat (LIMBHA), Ecole Supérieure du Bois, 7 Rue Christian Pauc, 44306 Nantes, France;
| | - Cédric Sima Obiang
- Laboratoire de Recherches en Biochimie, Université des Sciences et Techniques de Masuku, Franceville BP 943, Gabon; (C.S.O.); (J.-P.O.)
| | - Elodie Choque
- UMRt BioEcoAgro 1158-INRAE, BIOPI, Université de Picardie Jules Verne, 1 Rue des Louvels, 80000 Amiens, France;
| | - Elodie Dussert
- UMRt BioEcoAgro 1158-INRAE, Institut Charles Violette, Université de Lille, 59655 Lille, France; (E.D.); (R.R.)
| | - Rozenn Ravallec
- UMRt BioEcoAgro 1158-INRAE, Institut Charles Violette, Université de Lille, 59655 Lille, France; (E.D.); (R.R.)
| | - Joseph-Privat Ondo
- Laboratoire de Recherches en Biochimie, Université des Sciences et Techniques de Masuku, Franceville BP 943, Gabon; (C.S.O.); (J.-P.O.)
| | - Christophe Belloncle
- Laboratoire Innovation Matériau Bois Habitat (LIMBHA), Ecole Supérieure du Bois, 7 Rue Christian Pauc, 44306 Nantes, France;
| | - Brice Serge Kumulungui
- Centre Interdisciplinaire de Recherches Médicales de Franceville, Franceville BP 769, Gabon;
| | - François Mesnard
- UMRt BioEcoAgro 1158-INRAE, BIOPI, Université de Picardie Jules Verne, 1 Rue des Louvels, 80000 Amiens, France;
| |
Collapse
|
2
|
Samadd MA, Hossain MJ, Zahan MS, Islam MM, Rashid MA. A comprehensive account on ethnobotany, phytochemistry and pharmacological insights of genus Celtis. Heliyon 2024; 10:e29707. [PMID: 38726115 PMCID: PMC11078770 DOI: 10.1016/j.heliyon.2024.e29707] [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: 12/21/2022] [Revised: 10/19/2023] [Accepted: 04/14/2024] [Indexed: 05/12/2024] Open
Abstract
The plants of Celtis L. genus have been traditionally used to cure aches, sore throats, fevers, cancer, sexually transmitted diseases, sexual weakness, diarrhea, stomach problems, amenorrhea, menstrual disorders, kidney stones, and pain. The review aims to give a comprehensive account of the current state of ethnopharmacology, phytochemistry, and biological activities of the Celtis genus, as well as to describe the potential area of future avenues. Information on the Celtis genus was obtained from internet sources such as Google Scholar, Web of Science, PubMed, ScienceDirect, and so on by using appropriate keywords, including ethnobotanical, pharmacological, pharmaceutical, bioactivity, phytochemistry, and botanical features of the Celtis genus. This review identified 14 species in the genus Celtis that have a phytopharmacological investigation, including C.africana Burm. f., C. australis L., C. occidentalis L., C. sinensis Pers., C. philippensis Blanco., C. tetrandra Roxb., C. tessmannii Rendle., C. jessoensis Koidz., C. adolfi-friderici Engl., C. iguanaea (Jacq.) Sarg., C. laevigata Wild., C. pallida Torr., C. zenkeri Engl., and C. tournefortii Lam. This genus contains many classified phytoconstituents, such as terpenoids, organic acids, flavonoids, and volatile compounds. Their extracts and pure substances have been shown to have the same anticancer, antibacterial, anti-inflammatory, antioxidant, hepatoprotective, cardioprotective, urease-inhibiting, and antidiarrheal properties as their traditional uses. In terms of current information on ethnopharmacology, phytochemicals, and pharmacological uses, the data acquired in this review could be beneficial and needed for future research. Some phytoconstituents (for instance, kaempferol, myricetin, quercetin, and eugenol) and extracts (for example, leaves, seeds, and ripe fruits extracts of C. australis) showed tremendous results in preliminary testing with promising antimicrobial, anticancer, and urease inhibitory effects. Further research and clinical investigations are needed to develop them as lead compounds and neutraceuticals, which may provide an advance over traditional medicinal systems.
Collapse
Affiliation(s)
- Md Abdus Samadd
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh
- Department of Pharmacy, School of Pharmaceutical Sciences, State University of Bangladesh, South Purbachal, Dhaka, 1461, Bangladesh
| | - Md. Jamal Hossain
- Department of Pharmacy, School of Pharmaceutical Sciences, State University of Bangladesh, South Purbachal, Dhaka, 1461, Bangladesh
| | - Miss Sharmin Zahan
- Department of Pharmacy, School of Pharmaceutical Sciences, State University of Bangladesh, South Purbachal, Dhaka, 1461, Bangladesh
| | - Md. Monirul Islam
- Department of Pharmacy, School of Pharmaceutical Sciences, State University of Bangladesh, South Purbachal, Dhaka, 1461, Bangladesh
| | - Mohammad A. Rashid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh
| |
Collapse
|
3
|
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.
Collapse
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;
| |
Collapse
|
4
|
Ojo OA, Oni AI, Grant S, Amanze J, Ojo AB, Taiwo OA, Maimako RF, Evbuomwan IO, Iyobhebhe M, Nwonuma CO, Osemwegie O, Agboola AO, Akintayo C, Asogwa NT, Aljarba NH, Alkahtani S, Mostafa-Hedeab G, Batiha GES, Adeyemi OS. Antidiabetic Activity of Elephant Grass (Cenchrus Purpureus (Schumach.) Morrone) via Activation of PI3K/AkT Signaling Pathway, Oxidative Stress Inhibition, and Apoptosis in Wistar Rats. Front Pharmacol 2022; 13:845196. [PMID: 35308202 PMCID: PMC8924541 DOI: 10.3389/fphar.2022.845196] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/15/2022] [Indexed: 01/03/2023] Open
Abstract
Ethnopharmacological Relevance: The management of diabetes over the years has involved the use of herbal plants, which are now attracting interest. We assessed the antidiabetic properties of aqueous extract of C. purpureus shoots (AECPS) and the mechanism of action on pancreatic ß-cell dysfunction. Methods: This study was conducted using Thirty-six 36) male Wistar rats. The animals were divided into six equal groups (n = 6) and treatment was performed over 14 days. To induce diabetes in the rats, a single dose of 65 mg/kg body weight of alloxan was administered intraperitoneal along with 5% glucose. HPLC analysis was carried out to identified potential compounds in the extract. In vitro tests α-amylase, and α-glucosidase were analyzed. Body weight and fasting blood glucose (FBG) were measured. Biochemical parameters, such as serum insulin, liver glycogen, hexokinase, glucose-6-phosphate (G6P), fructose-1,6-bisphosphatase (F-1,6-BP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and nuclear factor kappa B (NF-ĸB), were analyzed. Additionally, mRNA expressions of phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT), B-cell lymphoma 2 (Bcl-2), and proliferating cell nuclear antigen (PCNA) were each evaluated. Results: This in vitro study showed inhibitory potency of Cenchrus purpureus extract (AECPS) as compared with the positive controls. AECPS showed a gradual decrease in alloxan-induced increases in FBG, total cholesterol (TC), triglycerides (TG), low density lipoprotein (LDL-c), G6P, F-1,6-BP, malondialdehyde (MDA), IL-6, TNF-α, and NF-ĸB and increased alloxan-induced decreases in liver glycogen, hexokinase, and high density lipoprotein (HDL-c). The diabetic control group exhibited pancreatic dysfunction as evidenced by the reduction in serum insulin, homeostasis model assessment of ß-cell function (HOMA-β), expressions of PI3K/AKT, Bcl-2, and PCNA combined with an elevation in homeostatic model assessment of insulin resistance (HOMA-IR). High performance liquid chromatography (HPLC) revealed 3-O-rutinoside, ellagic acid, catechin, rutin, and kaempferol in AECPS. Conclusion: AECPS showed efficient ameliorative actions against alloxan-induced pancreatic dysfunction, oxidative stress suppression as well as, inflammation, and apoptosis via the activation of PI3K/AKT signaling pathways.
Collapse
Affiliation(s)
| | | | - Susan Grant
- Department of Biochemistry, Landmark University, Omu-Aran, Nigeria
| | - Jennifer Amanze
- Department of Biochemistry, Landmark University, Omu-Aran, Nigeria
| | | | | | | | | | | | | | | | | | | | | | - Nada H Aljarba
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gomaa Mostafa-Hedeab
- Department of Pharmacology and Health Research Unit, Medical College, Jouf University, Al-Jawf, Saudi Arabia.,Department of Pharmacology, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | | |
Collapse
|
5
|
Odukoya JO, Odukoya JO, Mmutlane EM, Ndinteh DT. Phytochemicals and Amino Acids Profiles of Selected sub-Saharan African Medicinal Plants' Parts Used for Cardiovascular Diseases' Treatment. Pharmaceutics 2021; 13:1367. [PMID: 34575444 PMCID: PMC8472700 DOI: 10.3390/pharmaceutics13091367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/08/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023] Open
Abstract
For years, the focus on the lipid-atherosclerosis relationship has limited the consideration of the possible contribution of other key dietary components, such as amino acids (AAs), to cardiovascular disease (CVD) development. Notwithstanding, the potential of plant-based diets, some AAs and phytochemicals to reduce CVDs' risk has been reported. Therefore, in this study, the phytochemical and AA profiles of different medicinal plants' (MPs) parts used for CVDs' treatment in sub-Saharan Africa were investigated. Fourier-transform infrared analysis confirmed the presence of hydroxyl, amino and other bioactive compounds' functional groups in the samples. In most of them, glutamic and aspartic acids were the most abundant AAs, while lysine was the most limiting. P. biglobosa leaf, had the richest total branched-chain AAs (BCAAs) level, followed by A. cepa bulb. However, A. cepa bulb had the highest total AAs content and an encouraging nutraceutical use for adults based on its amino acid score. Principal component analysis revealed no sharp distinction between the AAs composition of MPs that have found food applications and those only used medicinally. Overall, the presence of medicinally important phytochemicals and AAs levels in the selected MPs' parts support their use for CVDs treatment as they might not add to the AAs (e.g., the BCAAs) burden in the human body.
Collapse
Affiliation(s)
- Johnson Oluwaseun Odukoya
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa;
- Department of Chemistry, The Federal University of Technology, Akure PMB 704, Ondo State, Nigeria
| | - Julianah Olayemi Odukoya
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa;
- Department of Food Science and Technology, Kwara State University, Malete, Ilorin PMB 1530, Kwara State, Nigeria
| | - Edwin Mpoh Mmutlane
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa;
| | - Derek Tantoh Ndinteh
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa;
| |
Collapse
|
6
|
Odukoya JO, Odukoya JO, Ndinteh DT. Elemental measurements and health risk assessment of sub-Saharan African medicinal plants used for cardiovascular diseases' and related risk factors' treatment. J Trace Elem Med Biol 2021; 65:126725. [PMID: 33561634 DOI: 10.1016/j.jtemb.2021.126725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dietary factors have been noted to influence the development of cardiovascular diseases (CVDs) which are the number one global cause of death. In this study, the nutritional importance and human health risk of the minerals composition of 20 medicinal plants' (MPs) parts used for treating CVDs and related risk factors in sub-Saharan Africa (SSA) were assessed. METHODS Inductively coupled plasma technology was used for determining the minerals composition of the MPs while human health risk assessment was based on hazard quotients, hazard indexes and non-carcinogenic risk analysis of the studied heavy metals. RESULTS The investigation showed varied level of minerals in the studied MPs' parts with K having the highest concentration in most. Although level of some elements inM. lucida, V. amygdalina leaves, T. cacao seed and Z. officinale rhizome revealed their possibility in preventing the occurrence of atherosclerosis, unsafe levels of some trace elements were recorded in M. lucida and V. amygdalina leaves. V. amygdalina leaves and A. cepa bulb also had their Pb contents higher than the WHO/FAO Codex permitted maximum level for leafy and bulb vegetables, respectively. In spite of the desirable Na/K and Zn/Cu ratios in all the tested MPs with their Cd and Pb levels below the WHO recommended maximum levels for dried medicinal plant materials, health risk assessment showed that habitual use of almost all of the studied MPs would present an unacceptable risk of non-carcinogenic effects on health. With the exception of S. aromaticum flower bud and T. tetraptera fruit, principal component and hierarchical cluster analyses of other plants' parts (MPs' parts aside from the leaves) analysed provided a distinction between MPs which have found food applications and those solely used for medicinal purposes. CONCLUSIONS The study revealed that type of MP, plants' part, maturity stage, agricultural practice, growing environment and conditions, are among the factors determining the safety of plant materials used for CVDs' and related risk factors' treatment in SSA. To protect the lives of CVDs patients who rely on traditional medicine for treatment, government of SSA countries and relevant authorities need to set a regulatory limit for maximum acceptable concentration of minerals in MPs used in the region. Assessment of the physicochemical properties and pollution level of soil used for cultivation of these MPs is also encouraged.
Collapse
Affiliation(s)
- Johnson Oluwaseun Odukoya
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, PO Box 17011, Doornfontein, Johannesburg, South Africa; Department of Chemistry, School of Sciences, The Federal University of Technology, PMB 704, Akure, Ondo State, Nigeria.
| | - Julianah Olayemi Odukoya
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, PO Box 17011, Doornfontein, Johannesburg, South Africa; Department of Food Science and Technology, Kwara State University, PMB 1530, Malete, Ilorin, Kwara State, Nigeria.
| | - Derek Tantoh Ndinteh
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, PO Box 17011, Doornfontein, Johannesburg, South Africa.
| |
Collapse
|
7
|
Schultz F, Osuji OF, Wack B, Anywar G, Garbe LA. Antiinflammatory Medicinal Plants from the Ugandan Greater Mpigi Region Act as Potent Inhibitors in the COX-2/PGH 2 Pathway. PLANTS 2021; 10:plants10020351. [PMID: 33673238 PMCID: PMC7918315 DOI: 10.3390/plants10020351] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/28/2021] [Accepted: 02/09/2021] [Indexed: 12/11/2022]
Abstract
Our study investigates 16 medicinal plants via assessment of inhibition of proinflammatory enzymes such as cyclooxygenases (COX). The plants are used by traditional healers in the Greater Mpigi region in Uganda to treat inflammation and related disorders. We present results of diverse in vitro experiments performed with 76 different plant extracts, namely, (1) selective COX-2 and COX-1 inhibitor screening; (2) 15-LOX inhibition screening; (3) antibacterial resazurin assay against multidrug-resistant Staphylococcus aureus, Listeria innocua, Listeria monocytogenes, and Escherichia coli K12; (4) DPPH assay for antioxidant activity; and (5) determination of the total phenolic content (TPC). Results showed a high correlation between traditional use and pharmacological activity, e.g., extracts of 15 out of the 16 plant species displayed significant selective COX-2 inhibition activity in the PGH2 pathway. The most active COX-2 inhibitors (IC50 < 20 µg/mL) were nine extracts from Leucas calostachys, Solanum aculeastrum, Sesamum calycinum subsp. angustifolium, Plectranthus hadiensis, Morella kandtiana, Zanthoxylum chalybeum, and Warburgia ugandensis. There was no counteractivity between COX-2 and 15-LOX inhibition in these nine extracts. The ethyl acetate extract of Leucas calostachys showed the lowest IC50 value with 0.66 µg/mL (COX-2), as well as the most promising selectivity ratio with 0.1 (COX-2/COX-1). The TPCs and the EC50 values for DPPH radical scavenging activity showed no correlation with COX-2 inhibitory activity. This led to the assumption that the mechanisms of action are most likely not based on scavenging of reactive oxygen species and antioxidant activities. The diethyl ether extract of Harungana madagascariensis stem bark displayed the highest growth inhibition activity against S. aureus (MIC value: 13 µg/mL), L. innocua (MIC value: 40 µg/mL), and L. monocytogenes (MIC value: 150 µg/mL). This study provides further evidence for the therapeutic use of the previously identified plants used medicinally in the Greater Mpigi region.
Collapse
Affiliation(s)
- Fabien Schultz
- Institute of Biotechnology, Faculty III—Process Sciences, Technical University of Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
- Correspondence: ; Tel.: +49-395-5693-2704
| | - Ogechi Favour Osuji
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
| | - Barbara Wack
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
| | - Godwin Anywar
- Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, P.O. Box 7062 Kampala, Uganda;
| | - Leif-Alexander Garbe
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
- ZELT—Neubrandenburg Center for Nutrition and Food Technology gGmbH, Seestraße 7A, 17033 Neubrandenburg, Germany
| |
Collapse
|
8
|
Targeting ESKAPE pathogens with anti-infective medicinal plants from the Greater Mpigi region in Uganda. Sci Rep 2020; 10:11935. [PMID: 32686689 PMCID: PMC7371678 DOI: 10.1038/s41598-020-67572-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/22/2020] [Indexed: 12/13/2022] Open
Abstract
Antibiotic resistance poses one of the greatest threats to global health today; conventional drug therapies are becoming increasingly inefficacious and limited. We identified 16 medicinal plant species used by traditional healers for the treatment of infectious and inflammatory diseases in the Greater Mpigi region of Uganda. Extracts were evaluated for their ability to inhibit growth of clinical isolates of multidrug-resistant ESKAPE pathogens. Extracts were also screened for quorum quenching activity against S. aureus, including direct protein output assessment (δ-toxin), and cytotoxicity against human keratinocytes (HaCaT). Putative matches of compounds were elucidated via LC–FTMS for the best-performing extracts. These were extracts of Zanthoxylum chalybeum (Staphylococcus aureus: MIC: 16 μg/mL; Enterococcus faecium: MIC: 32 μg/mL) and Harungana madagascariensis (S. aureus: MIC: 32 μg/mL; E. faecium: MIC: 32 μg/mL) stem bark. Extracts of Solanum aculeastrum root bark and Sesamum calycinum subsp. angustifolium leaves exhibited strong quorum sensing inhibition activity against all S. aureus accessory gene regulator (agr) alleles in absence of growth inhibition (IC50 values: 1–64 μg/mL). The study provided scientific evidence for the potential therapeutic efficacy of these medicinal plants in the Greater Mpigi region used for infections and wounds, with 13 out of 16 species tested being validated with in vitro studies.
Collapse
|
9
|
Gao L, Wei N, Yang G, Zhang Z, Liu G, Cai C. Ethnomedicine study on traditional medicinal plants in the Wuliang Mountains of Jingdong, Yunnan, China. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2019; 15:41. [PMID: 31426826 PMCID: PMC6699132 DOI: 10.1186/s13002-019-0316-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 07/17/2019] [Indexed: 05/05/2023]
Abstract
BACKGROUND The Wuliang Mountains of the Jingdong region is a settlement area of the Yi community located in south-western Yunnan Province in China. Due to its unique geographical location, this area harbours abundant medicinal plant resources. The medicinal plants used by the local people have a long history and play an important role in their daily life. During the long-term mixed lifestyle, the knowledge of traditional medicinal plants in different communities has been assimilated to some extent. Therefore, this paper is based on ethnobotanical investigations to document traditional medicinal plants used by local people and discuss the differences between the Yi and Han communities in the study area. METHODS Data on traditional medicinal plants were collected from September 2016 to August 2017 in the Yi autonomous county of Jingdong. Seven townships and 16 villages were selected for the field investigations. Information was obtained through key informant interviews. A total of 44 key informants were interviewed, and all of them were herbalists or herbal sellers. RESULTS In this study, a total of 302 traditional medicinal plant species belonging to 117 families and 252 genera were investigated and documented, most of which were obtained from herbalists. Although family Asteraceae was the most prevalent, with 27 species, the most commonly utilized species were members of family Papaveraceae, Dactylicapnos scandens (D. Don) Hutch., which is used as an antipyretic drug. Herbs comprised half of the total number of species, and the whole plant is the most frequently utilized plant part. The plants were used to treat more than 93 human diseases, with antipyretic drugs being the most common form of herbal medicine. The traditional medicinal plants used in the study area possess a high ratio of being documented in the literature. According to the analysis, the Chinese Pharmacopoeia recorded 76 species and the Resources of Traditional Chinese Medicine recorded 233 species of traditional medicinal plants. By evaluating the endangered status of the traditional medicinal plants in the study area, we found good conservation status of the cited medicinal plants. Regarding the similarity between the communities, there were significant differences between the Yi and Han communities, as indicated by the Jaccard similarity index (0.232). CONCLUSIONS Medicinal plants are the embodiment of wisdom from our ancestors and play a significant role in treating various human disorders. As one of the birthplaces of Yi medicine, the study area possesses a high species diversity of traditional medicinal plants used by local people. With the rapid development of modern medicine, however, the inheritance of this valuable culture is facing enormous threats even though its potential value has not yet been fully explored. Therefore, some effective protection measures should be taken, and some modern techniques should be implemented to prove the safety and improve the scientific acceptance of the traditional medicinal plants.
Collapse
Affiliation(s)
- Lunlun Gao
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303 Yunnan China
- Huazhong Agricultural University, Wuhan, 430070 Hubei China
- University of the Chinese Academy of Science, Beijing, 100049 China
| | - Neng Wei
- University of the Chinese Academy of Science, Beijing, 100049 China
- Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 Hubei China
| | - Guoping Yang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303 Yunnan China
| | - Zhenxian Zhang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303 Yunnan China
- University of the Chinese Academy of Science, Beijing, 100049 China
| | - Guizhou Liu
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303 Yunnan China
| | - Chuantao Cai
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303 Yunnan China
| |
Collapse
|
10
|
Karasawa MMG, Mohan C. Fruits as Prospective Reserves of bioactive Compounds: A Review. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:335-346. [PMID: 30069678 PMCID: PMC6109443 DOI: 10.1007/s13659-018-0186-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/25/2018] [Indexed: 05/09/2023]
Abstract
Bioactive natural products have always played a significant role as novel therapeutical agents irrespective of their source of origin. They have a profound effect on human health by both direct and indirect means and also possess immense medicinal properties. Fruit species are largely appreciated and highly consumed throughout the world. Epidemiologic information supports the association between high intake of fruits and low risk of chronic diseases. There are several biological reasons why the consumption of fruits might reduce or prevent chronic diseases. Fruits are rich sources of nutrients and energy, have vitamins, minerals, fiber and numerous other classes of biologically active compounds. Moreover, parts of the fruit crops like fruit peels, leaves and barks also possess medicinal properties and have been included in this review. The most important activities discussed in this review include antidiabetic, anticancer, antihypertensive, neuroprotective, anti-inflammatory, antioxidant, antimicrobial, antiviral, stimulation of the immune system, cell detoxification, cholesterol synthesis, anticonvulsant and their ability to lower blood pressure. Several phytochemicals involved in this context are described with special emphasis on their structural properties and their relativity with human diseases.
Collapse
Affiliation(s)
| | - Chakravarthi Mohan
- Department of Genetics and Evolution, Federal University of São Carlos, São Carlos, SP, Brazil.
| |
Collapse
|
11
|
Ahmed Abd M. Therapeutic Effects of Parsley Extract in Streptozotocin-induced Gestational Diabetic Rats. JOURNAL OF BIOLOGICAL SCIENCES 2018; 18:364-372. [DOI: 10.3923/jbs.2018.364.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
|
12
|
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.
Collapse
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
| |
Collapse
|
13
|
Kamdem RST, Wafo P, Dawe A, Nganteng DND, Ogechukwu UB, Rasheed S, Ogechukwu OE, Makhloufi G, Ali Z, Khan IA, Choudhary MI, Janiak C, Proksch P. Bioactive chemical constituents of Duboscia macrocarpa Bocq., and X-ray diffraction study of 11β, 12β-epoxyfriedours-14-en-3α-ol. Fitoterapia 2017; 125:65-71. [PMID: 29273414 DOI: 10.1016/j.fitote.2017.12.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/12/2017] [Accepted: 12/15/2017] [Indexed: 01/18/2023]
Abstract
A new γ-lactone triterpenoid, Evodoulolide (1) and a new triterpenoid Duboscic acid B (2), along with five known compounds, maslinic acid (3), arboreic acid (4), (E)-3-(4-hydroxyphenyl)-N-[2-(4-hydroxyphenyl) ethyl] prop-2-enamide (5), (E)-heptacos-19-enoic acid (6) and 11β,12β-epoxyfriedours-14-en-3α-ol (7) were isolated from the trunk wood of Duboscia macrocarpa. Their structures were elucidated from extensive 1D- and 2D-NMR and MS and by comparison of their spectra with published data. Compounds 1, 3, 5 and 6 exhibited significant α-glucosidase inhibitory activity. Compound 5 was found to be a potent inhibitor (IC50=5.1±0.1μM) of α-glucosidase as compared to acarbose (IC50=625.0±1μM) used as standard drug. These compounds did not show anti-glycation activity using the BSA-MG glycation model or inhibition against the α-chymotrypsin enzyme. The chemotaxonomic connotation of the isolated secondary metabolites is also herein described. The single-crystal X-ray and absolute configuration diffraction analysis of 11α, 12α-epoxyfriedours-14-en-3-ol (7) is also described here for the first time.
Collapse
Affiliation(s)
- Ramsay S T Kamdem
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany; Department of Organic Chemistry, Higher Teachers Training College, the University of Yaounde I, P.O. Box 47, Yaounde, Cameroon.
| | - Pascal Wafo
- Department of Organic Chemistry, Higher Teachers Training College, the University of Yaounde I, P.O. Box 47, Yaounde, Cameroon
| | - Amadou Dawe
- Department of Chemistry, Higher Teachers Training College, the University of Maroua I, P.O. Box 47, Maroua, Cameroon
| | - Dieu Ne Dort Nganteng
- Department of Organic Chemistry, Higher Teachers Training College, the University of Yaounde I, P.O. Box 47, Yaounde, Cameroon
| | - Umeokoli Blessing Ogechukwu
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany; Department of Pharmaceutical and Medicinal Chemistry, Nnamdi Azikiwe University, Awka, Nigeria
| | - Saima Rasheed
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Omeje E Ogechukwu
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria, 410001 Nsukka, Enugu State, Nigeria
| | - Gamall Makhloufi
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, MS 38655, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, MS 38655, USA
| | - Muhammad Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Christoph Janiak
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| |
Collapse
|
14
|
Ahmed Abd Rabou M, Ahmed Eid F. Possible Protective Role of Parsley Extract on the Diabetic Pregnant Rats and Their Fetuses. Pak J Biol Sci 2017; 20:552-562. [PMID: 30187738 DOI: 10.3923/pjbs.2017.552.562] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND OBJECTIVE Gestational diabetes mellitus (GDM) is one form of diabetes. It causes obstetrical complications and affects between 5-18% of all pregnancies and leads to congenital malformations and long-term postnatal disorders. Supportive therapy in treatment of diabetes during pregnancy takes place by anti-diabetic plants such as parsley. The current study has been undertaken to investigate the possible anti-diabetic and antioxidant role of aqueous parsley extract on streptozotocin (STZ) induced gestational diabetes mellitus in rats. MATERIALS AND METHODS Fifty pregnant albino rats were categorized after mating into five groups: group C (control group), group D1 (pregnant rats injected with interperitoneally single dose of STZ (40 mg kg-1 b.wt.) in the 1st day of gestation, group D1+P: Pregnant rats were treated with parsley extract (1 m/150 g b.wt.) from the 1st to the 19th day of gestation post injection with STZ (40 mg kg-1 b.wt.), group D7: Pregnant rats were injected with STZ (40 mg kg-1 b.wt.) on day 7of gestation, group D7+P: Pregnant rats were treated with parsley extract (1 m/150 g b.wt.) from the 7th to the 19th day of gestation post injection with STZ (40 mg kg-1 b.wt.). The pregnant rats were dissected on the 19th day of pregnancy and the uterine horns were removed freshly and then photographed. Abnormalities or any morphological changes were recorded, weight of fetuses and placenta and placental index were determined. Blood samples were collected to estimate the glucose and biochemical parameters of the main kidney functions. Also, kidney samples of fetuses were taken for the histopathological study. RESULTS Fetuses of the diabetic mothers showed some developmental changes such as very thin skin, very thin muscle layer under the skin, absence of eyelid and ear pinna, exencephaly and kyphosis. On the other hand, fetuses of the diabetic mothers which were treated with parsley leaves extract showed somewhat normal morphological development. According to the biochemical histopathological observations, the parsley leaf extract succeeded to minimize the drastic changes, which were observed in the diabetic rats and their fetuses. CONCLUSION Administration of the parsley leaf extract has the ability to minimize the damage of hyperglycemia.
Collapse
|