|
1
|
Vahekeni N, Brillatz T, Rahmaty M, Cal M, Keller-Maerki S, Rocchetti R, Kaiser M, Sax S, Mattli K, Wolfram E, Marcourt L, Queiroz EF, Wolfender JL, Mäser P. Antiprotozoal Activity of Plants Used in the Management of Sleeping Sickness in Angola and Bioactivity-Guided Fractionation of Brasenia schreberi J.F.Gmel and Nymphaea lotus L. Active against T. b. rhodesiense. Molecules 2024; 29:1611. [PMID: 38611890 PMCID: PMC11013945 DOI: 10.3390/molecules29071611] [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: 01/15/2024] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Folk medicine is widely used in Angola, even for human African trypanosomiasis (sleeping sickness) in spite of the fact that the reference treatment is available for free. Aiming to validate herbal remedies in use, we selected nine medicinal plants and assessed their antitrypanosomal activity. A total of 122 extracts were prepared using different plant parts and solvents. A total of 15 extracts from seven different plants exhibited in vitro activity (>70% at 20 µg/mL) against Trypanosoma brucei rhodesiense bloodstream forms. The dichloromethane extract of Nymphaea lotus (leaves and leaflets) and the ethanolic extract of Brasenia schreberi (leaves) had IC50 values ≤ 10 µg/mL. These two aquatic plants are of particular interest. They are being co-applied in the form of a decoction of leaves because they are considered by local healers as male and female of the same species, the ethnotaxon "longa dia simbi". Bioassay-guided fractionation led to the identification of eight active molecules: gallic acid (IC50 0.5 µg/mL), methyl gallate (IC50 1.1 µg/mL), 2,3,4,6-tetragalloyl-glucopyranoside, ethyl gallate (IC50 0.5 µg/mL), 1,2,3,4,6-pentagalloyl-β-glucopyranoside (IC50 20 µg/mL), gossypetin-7-O-β-glucopyranoside (IC50 5.5 µg/mL), and hypolaetin-7-O-glucoside (IC50 5.7 µg/mL) in B. schreberi, and 5-[(8Z,11Z,14Z)-heptadeca-8,11,14-trienyl] resorcinol (IC50 5.3 µg/mL) not described to date in N. lotus. Five of these active constituents were detected in the traditional preparation. This work provides the first evidence for the ethnomedicinal use of these plants in the management of sleeping sickness in Angola.
Collapse
Affiliation(s)
- Nina Vahekeni
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Théo Brillatz
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1211 Geneva, Switzerland; (T.B.); (L.M.); (E.F.Q.); (J.-L.W.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, 1211 Geneva, Switzerland
| | - Marjan Rahmaty
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1211 Geneva, Switzerland; (T.B.); (L.M.); (E.F.Q.); (J.-L.W.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, 1211 Geneva, Switzerland
| | - Monica Cal
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Sonja Keller-Maerki
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Romina Rocchetti
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Marcel Kaiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Sibylle Sax
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| | - Kevin Mattli
- Phytopharmacy & Natural Products, Institute of Chemistry and Biotechnology, Zürich University of Applied Sciences (ZHAW), 8820 Wädenswil, Switzerland (E.W.)
| | - Evelyn Wolfram
- Phytopharmacy & Natural Products, Institute of Chemistry and Biotechnology, Zürich University of Applied Sciences (ZHAW), 8820 Wädenswil, Switzerland (E.W.)
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1211 Geneva, Switzerland; (T.B.); (L.M.); (E.F.Q.); (J.-L.W.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, 1211 Geneva, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1211 Geneva, Switzerland; (T.B.); (L.M.); (E.F.Q.); (J.-L.W.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, 1211 Geneva, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, CMU, 1211 Geneva, Switzerland; (T.B.); (L.M.); (E.F.Q.); (J.-L.W.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, 1211 Geneva, Switzerland
| | - Pascal Mäser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; (M.C.); (S.K.-M.); (R.R.); (M.K.); (S.S.); (P.M.)
- Faculty of Science, University of Basel, 4002 Basel, Switzerland
| |
Collapse
|
|
2
|
Amang à Ngnoung GA, Nganso Ditchou YO, Leutcha PB, Dize D, Tatsimo SJN, Tchokouaha LRY, Kowa TK, Tembeni B, Mamoudou H, Poka M, Demana PH, Siwe Noundou X, Fekam Boyom F, Meli Lannang A. Antiplasmodial and Antileishmanial Activities of a New Limonoid and Other Constituents from the Stem Bark of Khaya senegalensis. Molecules 2023; 28:7227. [PMID: 37894704 PMCID: PMC10609173 DOI: 10.3390/molecules28207227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/19/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Plasmodium falciparum and Leishmania sp. resistance to antiparasitic drugs has become a major concern in malaria and leishmaniasis control. These diseases are public health problems with significant socioeconomic impacts, and mostly affect disadvantaged populations living in remote tropical areas. This challenge emphasizes the need to search for new chemical scaffolds that preferably possess novel modes of action to contribute to antimalarial and antileishmanial research programs. This study aimed to investigate the antimalarial and antileishmanial properties of a methanol extract (KS-MeOH) of the stem bark of the Cameroonian medicinal plant Khaya senegalensis and its isolated compounds. The purification of KS-MeOH led to the isolation of a new ordered limonoid derivative, 21β-hydroxybourjotinolone A (1a), together with 15 known compounds (1bc-14) using a repeated column chromatography. Compound 1a was obtained in an epimeric mixture of 21α-melianodiol (1b) and 21β-melianodiol (1c). Structural characterization of the isolated compounds was achieved with HRMS, and 1D- and 2D-NMR analyses. The extracts and compounds were screened using pre-established in vitro methods against synchronized ring stage cultures of the multidrug-resistant Dd2 and chloroquine-sensitive/sulfadoxine-resistant 3D7 strains of Plasmodium falciparum and the promastigote form of Leishmania donovani (1S(MHOM/SD/62/1S). In addition, the samples were tested for cytotoxicity against RAW 264.7 macrophages. Positive controls consisted of artemisinin and chloroquine for P. falciparum, amphotericin B for L. donovani, and podophyllotoxin for cytotoxicity against RAW 264.7 cells. The extract and fractions exhibited moderate to potent antileishmanial activity with 50% inhibitory concentrations (IC50) ranging from 5.99 ± 0.77 to 2.68 ± 0.42 μg/mL, while compounds displayed IC50 values ranging from 81.73 ± 0.12 to 6.43 ± 0.06 μg/mL. They were weakly active against the chloroquine-sensitive/sulfadoxine-resistant Pf3D7 strain but highly potent toward the multidrug-resistant PfDd2 (extracts, IC50 2.50 ± 0.12 to 4.78 ± 0.36 μg/mL; compounds IC50 2.93 ± 0.02 to 50.97 ± 0.37 μg/mL) with selectivity indices greater than 10 (SIDd2 > 10) for the extract and fractions and most of the derived compounds. Of note, the limonoid mixture [21β-hydroxylbourjotinolone A (1a) + 21α-melianodiol (1b) + 21β-melianodiol (1c)] exhibited moderate activity against P. falciparum and L. donovani. This novel antiplasmodial and antileishmanial chemical scaffold qualifies as a promising starting point for further medicinal chemistry-driven development of a dually active agent against two major infectious diseases affecting humans in Africa.
Collapse
Affiliation(s)
- Gabrielle Ange Amang à Ngnoung
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua P.O. Box 814, Cameroon; (G.A.A.à.N.); (P.B.L.)
| | - Yves Oscar Nganso Ditchou
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua P.O. Box 814, Cameroon; (G.A.A.à.N.); (P.B.L.)
| | - Peron Bosco Leutcha
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua P.O. Box 814, Cameroon; (G.A.A.à.N.); (P.B.L.)
- Natural Product and Environmental Chemistry Group (NAPEC), Department of Chemistry, Higher Teachers’ Training College, University of Maroua, Maroua P.O. Box 55, Cameroon; (S.J.N.T.); (A.M.L.)
| | - Darline Dize
- Antimicrobial and Biocontrol Agents Unit (AmBcAU), Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon; (D.D.); (F.F.B.)
| | - Simplice Joël Ndendoung Tatsimo
- Natural Product and Environmental Chemistry Group (NAPEC), Department of Chemistry, Higher Teachers’ Training College, University of Maroua, Maroua P.O. Box 55, Cameroon; (S.J.N.T.); (A.M.L.)
| | - Lauve Rachel Yamthe Tchokouaha
- Laboratory of Pharmacology, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaoundé P.O. Box 13033, Cameroon;
| | - Theodora Kopa Kowa
- Laboratory of Phytochemistry, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaoundé P.O. Box 13033, Cameroon;
| | - Babalwa Tembeni
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa; (B.T.); (M.P.); (P.H.D.)
| | - Hamadou Mamoudou
- Department of Biological Sciences, Faculty of Science, University of Maroua, Maroua P.O. Box 814, Cameroon;
| | - Madan Poka
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa; (B.T.); (M.P.); (P.H.D.)
| | - Patrick Hulisani Demana
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa; (B.T.); (M.P.); (P.H.D.)
| | - Xavier Siwe Noundou
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa; (B.T.); (M.P.); (P.H.D.)
| | - Fabrice Fekam Boyom
- Antimicrobial and Biocontrol Agents Unit (AmBcAU), Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon; (D.D.); (F.F.B.)
- Laboratory of Pharmacology, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaoundé P.O. Box 13033, Cameroon;
- Advanced Research and Health Innovation Hub (ARHIH), Yaoundé P.O. Box 20133, Cameroon
| | - Alain Meli Lannang
- Natural Product and Environmental Chemistry Group (NAPEC), Department of Chemistry, Higher Teachers’ Training College, University of Maroua, Maroua P.O. Box 55, Cameroon; (S.J.N.T.); (A.M.L.)
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere P.O. Box 454, Cameroon
| |
Collapse
|
|
3
|
Rufa’i FA, Baecker D, Mukhtar MD. Phytochemical Screening, GC-MS Analysis, and Evaluating In Vivo Antitrypanosomal Effects of a Methanolic Extract of Garcinia kola Nuts on Rats. Antibiotics (Basel) 2023; 12:antibiotics12040713. [PMID: 37107074 PMCID: PMC10135259 DOI: 10.3390/antibiotics12040713] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/01/2023] [Accepted: 04/04/2023] [Indexed: 04/09/2023] Open
Abstract
Trypanosomiasis is a serious disease that affects both humans and animals, causing social and economic losses. Efforts to find new therapeutic approaches are warranted to improve treatment options. Therefore, the purpose of this communication includes the phytochemical screening of a methanolic extract of Garcinia kola nuts and the in vivo evaluation of its biological activity against rats infected with Trypanosoma brucei brucei and treated with 4 different concentrations of the extract (0.01, 0.1, 1, and 10 mg/kg). Treatment with suramin served as a positive control, while the negative control received no drug. Since the general toxicity of the extract could be ruled out, efficacy was evaluated based on physiological changes, such as induction of trypanosome parasitemia, influence on body temperature, and body weight. Survival was assessed during this study. Physical parameters, behavioral characteristics, and various hematological indices were also monitored. Based on the (patho)physiological and behavioral parameters (e.g., no parasitemia, no increase in body temperature, an increase in body weight, no loss of condition, no alopecia, and no gangrene), the efficacy of the extract was evident, which was also confirmed by 100% survival, while in the negative control, all rats died during the observation period. Since overall very similar results were obtained as a result of treatment with the established suramin, the in vivo antitrypanosomal activity of a methanolic extract of G. kola nuts on rats can be demonstrated in this communication. This opens the way, for example, for further development of drug formulations based on this methanolic extract.
Collapse
Affiliation(s)
- Fatihu Ahmad Rufa’i
- Department of Microbiology, Faculty of Life Sciences, Bayero University, Kano PMB 3011, Nigeria
- Kano Liaison Office, Nigerian Institute for Trypanosomiasis (and Onchocerciasis) Research, Kaduna PMB 2077, Nigeria
| | - Daniel Baecker
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
| | - Muhammad Dauda Mukhtar
- Department of Microbiology, Faculty of Life Sciences, Bayero University, Kano PMB 3011, Nigeria
| |
Collapse
|
|
4
|
Hegazy MM, Afifi WM, Metwaly AM, Radwan MM, Abd-Elraouf M, Mehany ABM, Ahmed E, Enany S, Ezzeldin S, Ibrahim AE, El Deeb S, Mostafa AE. Antitrypanosomal, Antitopoisomerase-I, and Cytotoxic Biological Evaluation of Some African Plants Belonging to Crassulaceae; Chemical Profiling of Extract Using UHPLC/QTOF-MS/MS. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248809. [PMID: 36557948 PMCID: PMC9785725 DOI: 10.3390/molecules27248809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
In our continuous study for some African plants as a source for antitrypanosomally and cytotoxic active drugs, nine different plants belonging to the Crassulaceae family have been selected for the present study. Sedum sieboldii leaves extract showed an antitrypanosomal activity against Trypanosoma brucei with an IC50 value of 8.5 µg/mL. In addition, they have cytotoxic activities against (HCT-116), (HEPG-2) and (MCF-7), with IC50 values of 28.18 ± 0.24, 22.05 ± 0.66, and 26.47 ± 0.85 µg/mL, respectively. Furthermore, the extract displayed inhibition against Topoisomerase-1 with an IC50 value of 1.31 µg/mL. It showed the highest phenolics and flavonoids content among the other plants' extracts. In order to identify the secondary metabolites which may be responsible for such activities, profiling of the polar secondary metabolites of S. sieboldii extract via Ultra-Performance Liquid Chromatography coupled to High-Resolution QTOF-MS operated in negative and positive ionization modes, which revealed the presence of 46 metabolites, including flavonoids, phenolic acids, anthocyanidins, coumarin, and other metabolites.
Collapse
Affiliation(s)
- Mostafa M. Hegazy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Wael M. Afifi
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Sinai University—Kantara Branch, Ismailia 41636, Egypt
| | - Ahmed M. Metwaly
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Muhamad Abd-Elraouf
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Ahmed B. M. Mehany
- Zoology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Eman Ahmed
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
- Proteomics and Metabolomics Research Program, Department of Basic Research, Children’s Cancer Hospital 57357, Cairo 11441, Egypt
| | - Shymaa Enany
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Shahd Ezzeldin
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Adel E. Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
- Correspondence:
| | - Ahmad E. Mostafa
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| |
Collapse
|
|
5
|
Antitrypanosomal and Anthelminthic Properties of Ethanol Extracts of Carica papaya Linn. and Ceiba pentandra (L) Gaertn. J CHEM-NY 2022. [DOI: 10.1155/2022/5251930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The most common diseases that affect low-income countries are helminthosis and trypanosomosis. In Ghana, and in many other African countries, herbal treatment of various diseases is still common. In the present study, we sought to determine the antitrypanosomal and anthelminthic activities of Carica papaya and Ceiba pentandra. The ethanol extracts of Carica papaya stem bark (PPSe) and leaves (PPLe) and ethanol extracts of Ceiba pentandra stem bark (CPSe) and leaves (CPLe) were screened against Trypanosoma brucei brucei and Pheretima posthuma worms in vitro. CPSe exhibited strong antitrypanosomal activity, while the other extracts exhibited moderate activity against T. b. brucei. All the extracts showed weak selective indices (SI) when tested on Jurkat cell lines, which is indicative of a potential toxic effect. When the extracts were screened against P. posthuma worms, only PPSe and CPSe were able to kill the worms after the exposure time at concentrations of 2.5, 5, and 10 mg/mL. PPSe was again the only extract that potentiated the anthelminthic activity of albendazole against P. posthuma worms. Preliminary phytochemical screening and GC-MS analysis revealed the presence of compounds with antitrypanosomal and anthelminthic properties. The results confirmed the potential of C. papaya and C. pentandra as remedies for trypanosomosis and helminthosis and also gives credence to their folkloric use.
Collapse
|
|
6
|
Abdeta D, Abay SM, Giday M, Kebede N, Terefe G. Antitrypanosomal Effect of Hydromethanolic Extract of Solanum anguivi Lam on Field Isolates of Trypanosoma congolense Infected Mice. J Parasitol Res 2021; 2021:1239379. [PMID: 35003787 PMCID: PMC8731266 DOI: 10.1155/2021/1239379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Trypanosomiasis is one of the world's most serious infectious diseases caused by Trypanosoma parasites. Concern about resistance to conventional antitrypanosomal drugs, mosquito vector resistance to existing insecticide side effects of existing antitrypanosomal drugs justifies the urgent need for more effective, tolerable, and affordable drugs. OBJECTIVE The present study is aimed at determining the in vivo antitrypanosomal effect of the hydromethanolic extracts of Solanum anguivi fruit extracts against the field isolates of T. congolense. METHODS The 80% methanol extracts of S. anguivi fruits were prepared by cold maceration technique. In vivo curative tests were done to check the effect of plant extract against T. congolense in Swiss albino mice. Plant extracts were administered at doses of 100, 200, and 400 mg/kg/body weight. Acute toxicity of the extracts at 2000 mg/kg was performed according to OECD guidelines. Data obtained from the experiment were analyzed using one-way ANOVA followed by Tukey test. RESULTS This study indicated that extract did not exhibit any sign of acute toxicity up to 2000 mg/kg/body weight. In curative test, extracts reduced parasitemia, preventing the drop in packed cell volume and body weight significantly (p < 0.05), compared to control. Groups provided with the extract before infection got prolonged incubation period with chemoprophylactic effect at the doses of 100, 200, and 400 mg/kg. Phytochemical analysis showed presence of flavonoids, steroids, triterpens, saponins, glycosides, tannins, and alkaloids. CONCLUSION The extract showed promising curative. Further effort is required to isolate and purify specific compounds responsible for antitrypanosomal activity of studied plant.
Collapse
Affiliation(s)
- Debela Abdeta
- School of Veterinary Medicine, Wollega University, Nekemte, Ethiopia
| | | | - Mirutse Giday
- Akililu Lama Institutes of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Nigatu Kebede
- Akililu Lama Institutes of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Getechew Terefe
- Department of Parasitology, Addis Ababa University, Bishoftu, Ethiopia
| |
Collapse
|
|
7
|
Ibezim A, Onuku RS, Ibezim A, Ntie-Kang F, Nwodo NJ, Adikwu MU. Structure-based virtual screening and molecular dynamics simulation studies to discover new SARS-CoV-2 main protease inhibitors. SCIENTIFIC AFRICAN 2021; 14:e00970. [PMID: 34541426 PMCID: PMC8438860 DOI: 10.1016/j.sciaf.2021.e00970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/13/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022] Open
Abstract
Computational methods were used to filter two datasets (> 8,000 compounds) based on two criteria: higher binding affinity for MPRO than cocrystallized inhibitor and binding interactions with MPRO catalytic dyad (Cys145 and His41). After virtual screening involving ranking and reranking, eleven compounds were identified to satisfy these criteria and analysis of their structures revealed an unparallel common features among them which could be critical for their interactions with MPRO. However, only the topmost scoring compound (AV-203: Ki = 0.31 µM) exhibited relatively stable binding interaction during the period of 50 ns MD simulation and thus is a suitable template for drug development.
Collapse
Affiliation(s)
- A Ibezim
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Nigeria
| | - R S Onuku
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Nigeria
| | - A Ibezim
- Information and Communication Technology Unit, University of Nigeria, Nsukka, Nigeria
| | - F Ntie-Kang
- Department of Chemistry, Faculty of Science, University of Buea, P. O. Box 63, Buea, Cameroon.,Institute for Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany.,Institute of Botany, Technical University of Dresden, Zellescher Weg 20b, 01217 Dresden, Germany
| | - N J Nwodo
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Nigeria
| | - M U Adikwu
- Department of Pharmaceutical Microbiology and Biopharmaceutics, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Nigeria
| |
Collapse
|
|
8
|
Saleh MSM, Jalil J, Zainalabidin S, Asmadi AY, Mustafa NH, Kamisah Y. Genus Parkia: Phytochemical, Medicinal Uses, and Pharmacological Properties. Int J Mol Sci 2021; 22:ijms22020618. [PMID: 33435507 PMCID: PMC7827335 DOI: 10.3390/ijms22020618] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 12/12/2022] Open
Abstract
The genus Parkia (Fabaceae, Subfamily, Mimosoideae) comprises about 34 species of mostly evergreen trees widely distributed across neotropics, Asia, and Africa. This review aims to provide an overview of the current status of the species from the genus Parkia in terms of its relationship between its phytochemistry and medical uses. Comprehensive information on Parkia species was retrieved from electronic databases, which were Web of Science, ScienceDirect, PubMed, and Google Scholar. This review identified nine species from genus Parkia with properties of medicinal use. They are used traditionally to treat several ailments, such as diabetes, diarrhea, wounds, hypertension, cough, chronic piles, conjunctivitis, and measles. The most common species studied are P. biglobosa, P. speciosa, P. javanica, P. bicolor, P. biglandulosa, P. filicoidea, and P. clappertoniana. A considerable number of secondary metabolites, such as terpenoids, phenolic acids, flavonoids (aglycone and glycosides), and numerous volatile compounds have been identified in this genus, which are responsible for their diverse pharmacological activities. Their extracts, pure compounds and seed lectins have been reported for their anticancer, antimicrobial, antihypertensive, antiulcer, antidiabetic, anti-inflammatory, antioxidant, antimalarial, hepatoprotective, and antidiarrheal activities. The information gathered in this review might be of help for future studies in terms of the current knowledge on the link between the phytochemical components and medicinal uses. This could facilitate more discoveries on its potentials particularly in the pharmacological characteristics and potential to be developed into modern medicines.
Collapse
Affiliation(s)
- Mohammed S. M. Saleh
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Juriyati Jalil
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (J.J.); (N.H.M.)
| | - Satirah Zainalabidin
- Program of Biomedical Science, Centre of Toxicology and Health Risk Study, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia;
| | - Ahmad Yusof Asmadi
- Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia;
| | - Nor Hidayah Mustafa
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (J.J.); (N.H.M.)
| | - Yusof Kamisah
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
- Correspondence: ; Tel.: +603-91459575; Fax: +603-91459547
| |
Collapse
|
|
9
|
Ungogo MA, Ebiloma GU, Ichoron N, Igoli JO, de Koning HP, Balogun EO. A Review of the Antimalarial, Antitrypanosomal, and Antileishmanial Activities of Natural Compounds Isolated From Nigerian Flora. Front Chem 2020; 8:617448. [PMID: 33425860 PMCID: PMC7786139 DOI: 10.3389/fchem.2020.617448] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/03/2020] [Indexed: 12/16/2022] Open
Abstract
The West African country Nigeria features highly diverse vegetation and climatic conditions that range from rain forest bordering the Atlantic Ocean in the South to the Desert (Sahara) at the Northern extreme. Based on data from the World Conservation Monitoring Center of the United Nations Environmental Protection, Nigeria, with ~5,000 documented vascular plants, ranks amongst the top 50 countries in terms of biodiversity. Such a rich biodiversity implies that the country is rich in diverse secondary metabolites-natural products/unique chemicals produced by the plant kingdom to confer selective advantages to them. Like many tropical countries, Nigeria is also endemic to numerous infectious diseases particularly those caused by parasitic pathogens. These phytochemicals have been exploited for the treatment of diseases and as a result, a new branch of chemistry, natural product chemistry, has evolved, to try to reproduce and improve the therapeutic qualities of particular phytochemicals. In this review, we have compiled a compendium of natural products, isolated from Nigerian flora, that have been reported to be effective against certain protozoan parasites with the aim that it will stimulate interests for further investigations, and give impetus to the development of the natural products into registered drugs. In total 93 structurally characterized natural compounds have been identified with various levels of anti-parasite activity mainly from Nigerian plants. The synthesis protocol and molecular target for some of these natural anti-parasite agents have been established. For instance, the anti-plasmodial compound fagaronine (7), a benzophenanthridine alkaloid from Fagara zanthoxyloides has been successfully synthesized in the laboratory, and the anti-trypanosomal compound azaanthraquinone (55) elicits its effect by inhibiting mitochondrial electron transfer in trypanosomes. This review also discusses the barriers to developing approved drugs from phytochemicals, and the steps that should be taken in order to accelerate the development of new antiparasitics from the highlighted compounds.
Collapse
Affiliation(s)
- Marzuq A. Ungogo
- Department of Veterinary Pharmacology and Toxicology, Ahmadu Bello University, Zaria, Nigeria
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Godwin U. Ebiloma
- School of Health and Life Sciences, Teesside University, Middlesbrough, United Kingdom
| | - Nahandoo Ichoron
- Phytochemistry Research Group, Department of Chemistry, University of Agriculture, Makurdi, Nigeria
| | - John O. Igoli
- Phytochemistry Research Group, Department of Chemistry, University of Agriculture, Makurdi, Nigeria
| | - Harry P. de Koning
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Emmanuel O. Balogun
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology (ACENTDFB), Ahmadu Bello University, Zaria, Nigeria
| |
Collapse
|
|
10
|
Rani R, Kumar S, Dilbaghi N, Kumar R. Nanotechnology enabled the enhancement of antitrypanosomal activity of piperine against Trypanosoma evansi. Exp Parasitol 2020; 219:108018. [DOI: 10.1016/j.exppara.2020.108018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 09/30/2020] [Accepted: 10/09/2020] [Indexed: 10/23/2022]
|
|
11
|
Vahekeni N, Neto PM, Kayimbo MK, Mäser P, Josenando T, da Costa E, Falquet J, van Eeuwijk P. Use of herbal remedies in the management of sleeping sickness in four northern provinces of Angola. JOURNAL OF ETHNOPHARMACOLOGY 2020; 256:112382. [PMID: 31743767 DOI: 10.1016/j.jep.2019.112382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 11/02/2019] [Accepted: 11/10/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE This study reports for the first time on the use of folk medicine to treat sleeping sickness and its symptoms in four endemic provinces in northern Angola. By interviewing both traditional practitioners and confirmed patients, it highlights reasons to recourse to folk medicine, the plant species used for this affection as well as arises awareness about the use of particular plants showing potential risks. AIM OF THE STUDY The aims of this explorative study were three-fold. Firstly, it informed on access to, and use of plant-based medicine as first-choice treatment by infected persons. Secondly, it aimed at collecting comprehensive data from patients and traditional healers on herbal remedies in order to identify plant species used in the management of the disease. Thirdly, it served as contribution for primary indication of potential risk of use associated with the studied plants and their preparation. MATERIALS AND METHODS The study was conducted in 4 endemic provinces of Angola, namely Bengo, Zaire, Kwanza Norte and Uíge. We explored the use of herbal remedies by conducting structured and semi-structured interviews within two distinct study populations. The first group comprises 30 patients who had been diagnosed for trypanosomiasis and treated by the reference treatment. The second group included 9 traditional practitioners who had already treated sleeping sickness. The plants that were cited during the interviews were collected during field walks under supervision of a traditional healer, then authenticated and deposited at the National Herbarium in Luanda. RESULTS Of the 30 included patients, 12 (40%) had turned to folk medicine in the management of trypanosomiasis and related symptoms. 7 medicinal plants were reported by this group. Considering the key motivation to consult a traditional practitioner, two main factors accounted for half of the cases: "past experience with folk medicine" and "family habit". Out of 9 traditional practitioners' interviewees, 26 medicinal plants were cited. Roots and leaves were the most used plant parts, and decoction was the common mode of preparation. Evidence for antitrypanosomal activity in the scientific literature was found for 56% (17 of 30) of the identified plant species. The most cited plant was Crossopteryx febrifuga (UR = 6). Some of the cited plants, as for example Aristolochia gigantea, raised concern about potential toxicity. CONCLUSIONS With 40% of infected persons having turned first to folk medicine before consulting a medical doctor, this explorative study points out that plant-based medicines play an important role in local dynamics of health care. It highlights the need for primary assessment of potential risk of use related to the herbal recipes, and for reporting it to the concerned population. This first ethnobotanical study on trypanosomiasis in endemic provinces of Angola provides information on 30 plants, of which some had been identified as promising for further pharmacological research. Our results provide a first step towards the validation and valorization of Angolan herbal remedies for sleeping sickness.
Collapse
Affiliation(s)
- Nina Vahekeni
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstr. 53, 4051, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland; Nacional Center of Scientific Investigation (CNIC), Luanda, Angola.
| | - Pedro Menezes Neto
- Centro de Estudos e Investigação Científica de Botânica, Universidade Agostinho Neto, Luanda, Angola.
| | | | - Pascal Mäser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstr. 53, 4051, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland.
| | - Théophile Josenando
- Instituto de Combate e Controlo das Tripanossomíasses (ICCT), Luanda, Angola.
| | - Esperança da Costa
- Centro de Estudos e Investigação Científica de Botânica, Universidade Agostinho Neto, Luanda, Angola.
| | | | - Peter van Eeuwijk
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstr. 53, 4051, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland; Institute of Social Anthropology, University of Basel, Münsterplatz 19, 4051, Basel, Switzerland.
| |
Collapse
|
|
12
|
Mbosso Teinkela JE, Siwe Noundou X, Zeh Mimba JE, Meyer F, Tabouguia OM, Assob Nguedia JC, Hoppe HC, Krause RWM, Wintjens R, Azebaze GAB. Compound isolation and biological activities of Piptadeniastrum africanum (hook.f.) Brennan roots. JOURNAL OF ETHNOPHARMACOLOGY 2020; 255:112716. [PMID: 32151754 DOI: 10.1016/j.jep.2020.112716] [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: 12/14/2019] [Revised: 02/08/2020] [Accepted: 02/23/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The dicotyledonous plant Piptadeniastrum africanum (hook.f.) Brennan (Fabaceae) is used in traditional medicine to treat various human complaints including bronchitis, coughing, urino-genital ailments, meningitis, abdominal pain, treatment of wounds, malaria and gastrointestinal ailments, and is used as a purgative and worm expeller. AIM OF THE STUDY The present study describes the phytochemical investigation and the determination of the antimicrobial, antiplasmodial and antitrypanosomal activities of crude extract, fractions and compounds extracted from Piptadeniastrum africanum roots. MATERIALS AND METHODS Isolated compounds were obtained using several chromatographic techniques. The structures of all compounds were determined by comprehensive spectroscopic analyses (1D and 2D NMR) and by comparing their NMR data with those found in literature. In vitro antimicrobial activity of samples was evaluated using the microdilution method on bacterial (Escherichia coli, Proteus mirabilis, Staphylococcus aureus) and fungal (Candida krusei) strains, while in vitro cell-growth inhibition activities were assessed against two parasites (Trypanosoma brucei brucei and Plasmodium falciparum strain 3D7). The cytotoxicity properties of samples were assayed against HeLa human cervical carcinoma. RESULTS Five compounds were isolated and identified as: tricosanol 1, 5α-stigmasta-7,22-dien-3-β-ol 2, betulinic acid 3, oleanolic acid 4 and piptadenamide 5. This is the first report of the isolation of these five compounds from the roots of P. africanum. The (Hex:EtOAc 50:50) fraction exhibited moderate antibacterial activity against P. mirabilis (MIC 250 μg/mL), while the other fractions and isolated compounds had weak antimicrobial activities. Only the EtOAc fraction presented a moderate antimalarial activity with an IC50 of 16.5 μg/mL. The MeOH crude extract and three fractions (Hexane, Hexane-EtOAc 25% and EtOAc-MeOH 25%) exhibited significant trypanocidal activity with IC50 values of 3.0, 37.5, 3.8 and 9.5 μg/mL, respectively. CONCLUSION These results demonstrated a scientific rational of the traditional uses of P. africanum and indicate that this plant should be further investigated to identify some of the chemical components that exhibited the activities reported in this study and therefore may constitute new lead candidates in parasiticidal drug discovery.
Collapse
Affiliation(s)
- Jean Emmanuel Mbosso Teinkela
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Department RD3, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Belgium; Department of Biological Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Cameroon; Department of Chemistry, Faculty of Science, University of Douala, Douala, Cameroon.
| | - Xavier Siwe Noundou
- University Institute of Wood Technology of Mbalmayo, University of Yaoundé 1, Cameroon; Nanomaterials and Medicinal Organic Chemistry Laboratory, Department of Chemistry, Faculty of Science, Rhodes University, South Africa; Department of Biochemistry and Microbiology, Rhodes University, South Africa
| | | | - Franck Meyer
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Department RD3, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Belgium
| | | | | | - Heinrich C Hoppe
- Department of Biochemistry and Microbiology, Rhodes University, South Africa
| | - Rui Werner Maçedo Krause
- Nanomaterials and Medicinal Organic Chemistry Laboratory, Department of Chemistry, Faculty of Science, Rhodes University, South Africa
| | - René Wintjens
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Department RD3, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Belgium
| | | |
Collapse
|
|
13
|
Eze FI, Siwe Noundou X, Osadebe PO, Krause RWM. Phytochemical, anti-inflammatory and anti-trypanosomal properties of Anthocleista vogelii Planch (Loganiaceae) stem bark. JOURNAL OF ETHNOPHARMACOLOGY 2019; 238:111851. [PMID: 30978458 DOI: 10.1016/j.jep.2019.111851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 03/23/2019] [Accepted: 03/31/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Anthocleista vogelii Planch (Loganiaceae) is used in African Traditional Medicine for the treatment of pain and inflammatory disorders as well as sleeping sickness. AIM OF THE STUDY To determine the in vivo anti-inflammatory and in vitro anti-trypanosomal activities of the extracts of A. vogelii stem bark and identify the phytochemical classes of the fractions responsible for the activities. MATERIALS AND METHODS The in vivo anti-inflammatory activity of the extracts was evaluated using the egg albumin-induced rat paw oedema model while the in vitro anti-trypanosomal activity was assessed on Trypanosoma brucei brucei. The in vitro cytotoxicity was assessed on HeLa (human cervix adenocarcinoma) cell line. RESULTS The methanolic extract of A. vogelii stem bark, with 11.2% yield, gave LD50 > 5000 mg/kg. The n-hexane fraction of the extract contains steroids, terpenes and fatty acids and yielded non-cytotoxic terpenoidal column fraction with anti-trypanosomal IC50 of 3.0 μg/mL. The ethylacetate fraction at 100 mg/kg dose significantly (p < 0.05) provoked 37.8, 62.5 and 69.7% inhibition of oedema induced by egg-albumin at the second, fourth and sixth hours respectively. CONCLUSION The study demonstrated that the anti-inflammatory and anti-trypanosomal activities of A. vogelii are probably due to non-cytotoxic terpenoids and validated the traditional use of A. vogelii in the treatment of inflammation and sleeping sickness.
Collapse
Affiliation(s)
- Fabian Ifeanyi Eze
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria Nsukka, 410001, Nigeria; Medicinal Organic Chemistry Laboratory, Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa.
| | - Xavier Siwe Noundou
- Medicinal Organic Chemistry Laboratory, Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa; Marine Natural Products Chemistry Laboratory, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Patience O Osadebe
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria Nsukka, 410001, Nigeria.
| | - Rui W M Krause
- Medicinal Organic Chemistry Laboratory, Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa; Marine Natural Products Chemistry Laboratory, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| |
Collapse
|
|
14
|
Malgwi SA, Zango MK, Mbaya AW, Dennis G, Kyari F, Sanda KA, Balami SB, Bwala AD. Anti-trypanosomal activity of crude root extract of Leptadenia hastata (Pers) decne in Wistar rats infected with Trypanosoma brucei brucei and associated hematological changes. J Adv Vet Anim Res 2019; 6:241-246. [PMID: 31453198 PMCID: PMC6702882 DOI: 10.5455/javar.2019.f339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 11/10/2022] Open
Abstract
Objective: An in vivo study was carried out to evaluate the possible anti-trypanosomal activity of Leptadenia hastata crude root extract with also its associated hematological changes particularly the packed cell volume (PCV) in experimental Trypanosoma brucei brucei infection using Wistar rats. Materials and Methods: Thirty Wistar rats comprising of both males and females were categorized into six separate groups starting from A to F. Wistar placed in Group A and Group B were inoculated with T. brucei brucei and administered crude root extract of L. hastata at 100 and 200 mg/kg, respectively, as the treatment. Group C was infected with the parasite but untreated, while Group D was not infected with the parasite and was not treated. The remaining Groups E and F were inoculated with the parasite using diminazene diaceturate at 3.5 and 7.0 mg/kg, respectively. The extract was administered enterally when parasitemia was detected. Standard laboratory techniques were employed to determine parasitemia and PCV after collection of blood samples every 2 days via the tail vein. Results: Infected Groups (A, B, C, E, and F) showed a pre-patent period 2 days post infection (P.I) with mean parasitic counts of 3.93 ± 2.38, 2.46 ± 2.20, 0.67 ± 0.77, 4.60 ± 4.45, and 1.53 ± 1.44, respectively, which continued unabated in groups treated with the extract.The pack cell volume did not decline significantly in the in Groups A and B. Acute toxicity study revealed the absence of any clinical or behavioral changes suggesting toxicity. Conclusion: There was no effect on parasitemia of Wistar rats infected with the parasite after administration of 100 and 200 mg, respectively, using the extract as the treatment. PCV of the groups infected remained fairly constant with the control groups throughout the study with the extract being non-toxic.
Collapse
Affiliation(s)
- Samson Anjikwi Malgwi
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Mohammed Kyari Zango
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Albert Wulari Mbaya
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Gamgong Dennis
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Falmata Kyari
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Kyari Abba Sanda
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Stephen Bitrus Balami
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Abwari David Bwala
- Department of Biological Science, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria
| |
Collapse
|
|
15
|
Obbo CJD, Kariuki ST, Gathirwa JW, Olaho-Mukani W, Cheplogoi PK, Mwangi EM. In vitro antiplasmodial, antitrypanosomal and antileishmanial activities of selected medicinal plants from Ugandan flora: Refocusing into multi-component potentials. JOURNAL OF ETHNOPHARMACOLOGY 2019; 229:127-136. [PMID: 30273736 DOI: 10.1016/j.jep.2018.09.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Seven medicinal plants from Ugandan flora, namely Entada abyssinica, Khaya anthotheca, Vernonia amygdalina, Baccharoides adoensis, Schkuhria pinnata, Entandropragma utile and Momordica foetida, were selected in this study. They are used to treat conditions and infections ranging from inflammations, pains and fevers to viruses, bacteria, protozoans and parasites. Two of the plants, V. amygdalina and M. foetida, are also used as human food or relish, while others are important in ethnoveterinary practices and in zoopharmacognosy in the wild. The aim of this study was to evaluate the in vitro antiplasmodial, antitrypanosomal and antileishmanial activities, along with cytotoxicity of the multi-component extracts of these plants. MATERIALS AND METHODS Different parts of the plants were prepared and serially extracted with hexane, petroleum ether, dichloromethane, ethyl acetate, methanol and double distilled water. Solvent free extracts were assayed for in vitro inhibition against four reference parasite strains, Plasmodium falciparum (K1), Trypanosoma brucei rhodesiense (STIB 900), Trypanosoma cruzi (Talahuen C2C4) and Leishmania donovani (MHOM-ET-67/L82) using standard methods. Toxicity was assessed against L6 skeletal fibroblast and mouse peritoneal macrophage (J774) cells and selectivity indices (SIs) calculated for the most active extracts. RESULTS The strongest activities, demonstrating median inhibitory concentration (IC50) values ≤ 2 μg/ml, were observed for the dichloromethane and petroleum ether extracts of K. anthotheca, B. adoensis and S. pinnata. Overall, IC50 values ranged from < 1 μg/ml to > 90 μg/ml. Out of 22 extracts demonstrating IC50s < 20 μg/ml, seven were against T. b. rhodesiense (IC50: 1.6-16.2 μg/ml), six against T. cruzi (IC50: 2.1-18.57 μg/ml), none against L. donovani (IC50: falling > 3.3 and >10 μg/ml), and nine against P. falciparum (IC50: 0.96 μg/ml to 4.69 μg/ml). Selectivity indices (SI) calculated for the most active extracts ranged from <1.00 to 94.24. However, the B. adoensis leaf dichloromethane extract (a) was equipotent (IC50 = 3.3 μg/ml) against L. donovani and L6 cells respectively, indicating non-specific selection. Trypanosome and Plasmodium parasites were comparatively more sensitive to the test extracts. CONCLUSIONS The benefits achieved from the seven tested plant species as traditional ethnomedicinal and ethnoveterinary therapies or in zoopharmacognosy against infections and conditions of animals in the wild are strongly supported by results of this study. The synergy of plant extracts, so achieved by concerted actions of the ligands, produces adequate perturbation of targets in the four parasite genera, resulting in the strong potencies exhibited by low IC50 values. The total inhibitory effect, achieved as a sum of perturbations contributed by each participating compound in the extract, minimises toxic effects of the compounds as seen in the high SI's obtained with some extracts. Those extracts demonstrating SI ≥ 4 form promising candidates for further cell-based and system pharmacology studies.
Collapse
Affiliation(s)
- C J D Obbo
- Department of Biological Sciences, Egerton University, P.O. Box 536-20115, Egerton, Njoro, Kenya; Department of Biological Sciences, Kyambogo University, Post Box 1, Kyambogo, Kampala, Uganda.
| | - S T Kariuki
- Department of Biological Sciences, Egerton University, P.O. Box 536-20115, Egerton, Njoro, Kenya
| | - J W Gathirwa
- Kenya Medical Research Institute (KEMRI), P.O. Box 54840, Nairobi 00200, Kenya
| | - W Olaho-Mukani
- African Union-Interafrican Bureau for Animal Resources, P.O. Box 30786, Nairobi, Kenya
| | - P K Cheplogoi
- Department of Chemistry, Egerton University, P.O. Box 536-20115, Egerton, Njoro, Kenya.
| | - E M Mwangi
- Department of Chemistry, Egerton University, P.O. Box 536-20115, Egerton, Njoro, Kenya
| |
Collapse
|
|
16
|
Gumbo M, Beteck RM, Mandizvo T, Seldon R, Warner DF, Hoppe HC, Isaacs M, Laming D, Tam CC, Cheng LW, Liu N, Land KM, Khanye SD. Cinnamoyl-Oxaborole Amides: Synthesis and Their in Vitro Biological Activity. Molecules 2018; 23:E2038. [PMID: 30111695 PMCID: PMC6222898 DOI: 10.3390/molecules23082038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/06/2018] [Accepted: 08/07/2018] [Indexed: 11/19/2022] Open
Abstract
Due to the increased interest in their application in the treatment of infectious diseases, boron-containing compounds have received a significant coverage in the literature. Herein, a small set of novel cinnamoly-oxaborole amides were synthesized and screened against nagana Trypanosoma brucei brucei for antitrypanosomal activity. Compound 5g emerged as a new hit with an in vitro IC50 value of 0.086 μM against T. b. brucei without obvious inhibitory activity against HeLa cell lines. The same series was also screened against other human pathogens, including Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), for which moderate to weak activity (10 to >125 μM) was observed. Similarly, these compounds exhibited moderate activity against the human protozoal pathogen Trichomonas vaginalis with no observed effect on common microbiome bacterial species. The cross-species inhibitory activity presents the possibility of these compounds serving as broad-spectrum antibiotics for these prevalent three human pathogens.
Collapse
Affiliation(s)
- Maureen Gumbo
- Faculty of Science, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
| | - Richard M Beteck
- Faculty of Science, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
| | - Tawanda Mandizvo
- Faculty of Science, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
| | - Ronnett Seldon
- Drug Discovery and Development Centre (H3-D), Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa.
| | - Digby F Warner
- MRC/NHLS/UCT Molecular Mycobacteriology Research Unit, Department of Pathology, University of Cape Town, Rondebosch 7701, South Africa.
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa.
| | - Heinrich C Hoppe
- Faculty of Science, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown 6140, South Africa.
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Grahamstown 6140, South Africa.
| | - Michelle Isaacs
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Grahamstown 6140, South Africa.
| | - Dustin Laming
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Grahamstown 6140, South Africa.
| | - Christina C Tam
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA.
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA.
| | - Nicole Liu
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA.
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA.
| | - Setshaba D Khanye
- Faculty of Science, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Grahamstown 6140, South Africa.
| |
Collapse
|
|
17
|
Simoben CV, Ntie-Kang F, Akone SH, Sippl W. Compounds from African Medicinal Plants with Activities Against Selected Parasitic Diseases: Schistosomiasis, Trypanosomiasis and Leishmaniasis. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:151-169. [PMID: 29744736 PMCID: PMC5971035 DOI: 10.1007/s13659-018-0165-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/26/2018] [Indexed: 05/10/2023]
Abstract
Parasitic diseases continue to represent a threat on a global scale, particularly among the poorest countries in the world. This is particularly because of the absence of vaccines, and in some cases, resistance against available drugs, currently being used for their treatment. In this review emphasis is laid on natural products and scaffolds from African medicinal plants (AMPs) for lead drug discovery and possible further development of drugs for the treatment of parasitic diseases. In the discussion, emphasis has been laid on alkaloids, terpenoids, quinones, flavonoids and narrower compound classes of compounds with micromolar range activities against Schistosoma, Trypanosoma and Leishmania species. In each subparagraph, emphasis is laid on the compound subclasses with most promising in vitro and/or in vivo activities of plant extracts and isolated compounds. Suggestions for future drug development from African medicinal plants have also been provided. This review covering 167 references, including 82 compounds, provides information published within two decades (1997-2017).
Collapse
Affiliation(s)
- Conrad V Simoben
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Fidele Ntie-Kang
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany.
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, 00237, Cameroon.
| | - Sergi H Akone
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse1, Geb. 26.23, Duesseldorf, 40225, Germany
- Department of Chemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, 00237, Cameroon
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| |
Collapse
|
|
18
|
Discovery of Trypanocidal Bioactive Leads by Docking Study, Molecular Dynamic Simulation and In Vivo Screening. ChemistrySelect 2018. [DOI: 10.1002/slct.201702972] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
|
19
|
Trypanocidal Effects of Cisplatin alone and in Combination with Nigella sativa Oil on Experimentally Infected Mice with Trypanosoma evansi. IRANIAN JOURNAL OF PARASITOLOGY 2018; 13:89-99. [PMID: 29963090 PMCID: PMC6019580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
BACKGROUND Due to the limited number of the available drugs for the treatment of trypanosomiasis, this study was designed to evaluate the trypanocidal effects of cisplatin or/and Nigella sativa oil (NSO) in experimentally infected mice with T. evansi. METHODS During 2015 at the Parasitology Department, Menoufia University, Menoufia, Egypt, sixty Swiss albino mice were divided into six groups: normal control (I), infected control (II); cisplatin-treated (III); NSO-treated (IV); combined cisplatin + NSO-treated (V) and diminazene-treated (VI). The tested drugs were evaluated by the assessment of parasitaemia, measurement of aspartate aminotransferase (AST), alanine aminotransferase (ALT), urea, creatinine, serum IgM and a histopathological study. RESULTS NSO showed a trypanocidal effect, however; it was not as effective as cisplatin or diminazene. There were significant increases of AST, ALT, urea, and creatinine in group II and III, which were significantly reduced in cisplatin + NSO-treated group (V). Moreover, there were significant reductions in serum IgM and the pathological changes of the examined organs of group V when they were compared with other treated groups. CONCLUSION Cisplatin combined with NSO showed a trypanocidal effect against T. evansi with preservation of vital organs functions and architecture.
Collapse
|
|
20
|
Mwangi VI, Mumo RM, Nyachieo A, Onkoba N. Herbal medicine in the treatment of poverty associated parasitic diseases: A case of sub-Saharan Africa. J Herb Med 2017. [DOI: 10.1016/j.hermed.2017.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
|
21
|
Animal African Trypanosomiasis in Nigeria: A long way from elimination/eradication. Acta Trop 2017; 176:323-331. [PMID: 28870536 DOI: 10.1016/j.actatropica.2017.08.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/18/2017] [Accepted: 08/26/2017] [Indexed: 11/21/2022]
Abstract
Animal African Trypanosomiasis (AAT) is a disease of livestock that directly hinders livestock production and therefore impedes the socio-economic development of sub-Saharan Africa. The establishment of the Pan-African Tsetse and Trypanosomiasis Eradication Campaign (PATTEC) was to enhance the goal of elimination and eradication of tsetse flies and AAT from endemic countries in Africa. In order to achieve AAT eradication, a five-step progressive control pathway (PCP) model has been proposed. The data presented in this report demonstrates that Nigeria is highly endemic of AAT and that it is yet to comprehensively approach the process of eradication as it is at the infancy stage of data gathering and processing. This review is thus presented to serve as a wake-up call to all relevant stakeholders to intensify efforts in approaching the painstaking process of AAT eradication in Nigeria.
Collapse
|
|
22
|
Das A, Das MC, Das N, Bhattacharjee S. Evaluation of the antileishmanial potency, toxicity and phytochemical constituents of methanol bark extract of Sterculia villosa. PHARMACEUTICAL BIOLOGY 2017; 55:998-1009. [PMID: 28173714 PMCID: PMC6130613 DOI: 10.1080/13880209.2017.1285946] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 12/06/2016] [Accepted: 01/19/2017] [Indexed: 06/06/2023]
Abstract
CONTEXT Visceral leishmaniasis is a protozoan disease caused by Leishmania donovani parasite. The genus Sterculia (Malvaceae) possesses ethnobotanical potential against this protozoan infection. OBJECTIVE Determining the potential role of methanol bark extracts from Sterculia villosa Roxb (SVE) and its phytoconstituents against Leishmania donovani promastigotes. MATERIALS AND METHODS SVE was analysed by TLC, UV-Vis, IR spectroscopy and biochemical assays. Antileishmanial potential of SVE (0.5-130 μg/mL for 72 h) was characterized by MTT assay. Fluorescent microscopy was performed to validate the IC50 dose. To determine the effect of SVE on promastigotes, reactive oxygen species (ROS) and superoxide generation, lipid peroxidation and DNA fragmentation assays were performed. Molecular aggregation of compounds was determined by atomic force microscopy (AFM). Extent of cytotoxicity of SVE at IC50 dose was determined against RAW 264.7 macrophages, peritoneal macrophages and murine RBCs. In vivo cytotoxicity of SVE was evaluated in BALB/c mice. RESULT SVE exhibited reverse dose dependent antileishmanial activity when 130-0 μg/mL doses were tested against promastigotes. The IC50 and IC70 values were found to be 17.5 and 10 μg/mL, respectively. SVE at IC50 dose demonstrated elevated level of ROS, superoxide, lipid peroxidation and DNA fragmentation against promastigotes with no cytotoxicity. AFM analysis suggested increasing size of molecular aggregation (31.3 nm < 35.2 nm < 2.93 μm) with increase in concentration (10 μg < 17.5 μg < 130 μg). DISCUSSION AND CONCLUSIONS The study elucidates the antileishmanial potential of SVE against Leishmania donovani promastigotes by exerting oxidative stress and DNA damage. In sum, SVE can be explored as an immunotherapeutic candidate against leishmaniasis and other infectious diseases.
Collapse
MESH Headings
- Animals
- Antiprotozoal Agents/isolation & purification
- Antiprotozoal Agents/pharmacology
- Antiprotozoal Agents/toxicity
- Chromatography, Thin Layer
- DNA Fragmentation
- Dose-Response Relationship, Drug
- Leishmania donovani/drug effects
- Leishmania donovani/genetics
- Leishmania donovani/growth & development
- Leishmania donovani/metabolism
- Leishmaniasis, Visceral/drug therapy
- Leishmaniasis, Visceral/metabolism
- Leishmaniasis, Visceral/parasitology
- Lethal Dose 50
- Lipid Peroxidation/drug effects
- Macrophages, Peritoneal/drug effects
- Macrophages, Peritoneal/pathology
- Methanol/chemistry
- Mice
- Mice, Inbred BALB C
- Microscopy, Fluorescence
- Oxidative Stress/drug effects
- Parasitic Sensitivity Tests
- Phytochemicals/isolation & purification
- Phytochemicals/pharmacology
- Phytochemicals/toxicity
- Phytotherapy
- Plant Bark/chemistry
- Plant Extracts/isolation & purification
- Plant Extracts/pharmacology
- Plant Extracts/toxicity
- Plants, Medicinal
- RAW 264.7 Cells
- Solvents/chemistry
- Spectrophotometry, Ultraviolet
- Spectroscopy, Fourier Transform Infrared
- Sterculia/chemistry
- Superoxides/metabolism
- Time Factors
Collapse
Affiliation(s)
- Antu Das
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, India
| | - Manash C. Das
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, India
| | - Niranjan Das
- Department of Chemistry, Netaji Shubhas Mahavidyalaya, Udaipur, India
| | - Surajit Bhattacharjee
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, India
| |
Collapse
|
|
23
|
Das A, Jawed JJ, Das MC, Sandhu P, De UC, Dinda B, Akhter Y, Bhattacharjee S. Antileishmanial and immunomodulatory activities of lupeol, a triterpene compound isolated from Sterculia villosa. Int J Antimicrob Agents 2017; 50:512-522. [DOI: 10.1016/j.ijantimicag.2017.04.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/08/2017] [Accepted: 04/12/2017] [Indexed: 10/19/2022]
|
|
24
|
Mbosso Teinkela JE, Siwe Noundou X, Nguemfo EL, Meyer F, Wintjens R, Isaacs M, Mpondo Mpondo AE, Hoppe HC, Krause RWM, Azebaze AGB. Biological activities of plant extracts from Ficus elastica and Selaginella vogelli: An antimalarial, antitrypanosomal and cytotoxity evaluation. Saudi J Biol Sci 2017; 25:117-122. [PMID: 29379367 PMCID: PMC5775106 DOI: 10.1016/j.sjbs.2017.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/26/2017] [Accepted: 07/15/2017] [Indexed: 02/05/2023] Open
Abstract
The cytotoxic, antiplasmodial, and antitrypanosomal activities of two medicinal plants traditionally used in Cameroon were evaluated. Wood of Ficus elastica Roxb. ex Hornem. aerial roots (Moraceae) and Selaginella vogelii Spring (Selaginellaceae) leaves were collected from two different sites in Cameroon. In vitro cell-growth inhibition activities were assessed on methanol extract of plant materials against Plasmodium falciparum strain 3D7 and Trypanosoma brucei brucei, as well as against HeLa human cervical carcinoma cells. Criteria for activity were an IC50 value < 10 μg/mL. The extract of S. vogelii did not significantly reduce the viability of P. falciparum at a concentration of 25 μg/mL but dramatically affected the trypanosome growth with an IC50 of 2.4 μg/mL. In contrast, at the same concentration, the extract of F. elastica exhibited plasmodiacidal activity (IC50 value of 9.5 μg/mL) and trypanocidal (IC50 value of 0.9 μg/mL) activity. Both extracts presented low cytotoxic effects on HeLa cancer cell line. These results indicate that the selected medicinal plants could be further investigated for identifying compounds that may be responsible for the observed activities and that may represent new leads in parasitical drug discovery.
Collapse
Affiliation(s)
- Jean Emmanuel Mbosso Teinkela
- Département des Sciences Biologiques, Faculté de Médecine et des Sciences Pharmaceutiques (FMSP), Université de Douala, BP 2701 Douala, Cameroon.,Department of Chemistry, Faculty of Science, University of Douala, P.O. Box. 24157, Douala, Cameroon.,Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Xavier Siwe Noundou
- Nanomaterials and Medicinal Organic Chemistry Laboratory, Department of Chemistry, Faculty of Science, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
| | - Edwige Laure Nguemfo
- Département des Sciences Biologiques, Faculté de Médecine et des Sciences Pharmaceutiques (FMSP), Université de Douala, BP 2701 Douala, Cameroon
| | - Franck Meyer
- Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Rene Wintjens
- Laboratory of Biopolymers and Supramolecular Nanomaterials, Faculté de Pharmacie, Université Libre de Bruxelles (ULB), Campus Plaine (CP 206/4), Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Michelle Isaacs
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown 6140, South Africa
| | - Albert Emmanuel Mpondo Mpondo
- Département de Pharmacie, Faculté de Médecine et des Sciences Pharmaceutiques (FMSP), Université de Douala, BP 2701 Douala, Cameroon
| | - Heinrich C Hoppe
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown 6140, South Africa
| | - Rui Werner Maçedo Krause
- Nanomaterials and Medicinal Organic Chemistry Laboratory, Department of Chemistry, Faculty of Science, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
| | | |
Collapse
|
|
25
|
Kinda PT, Zerbo P, Guenné S, Compaoré M, Ciobica A, Kiendrebeogo M. Medicinal Plants Used for Neuropsychiatric Disorders Treatment in the Hauts Bassins Region of Burkina Faso. MEDICINES 2017; 4:medicines4020032. [PMID: 28930246 PMCID: PMC5590068 DOI: 10.3390/medicines4020032] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 05/11/2017] [Accepted: 05/15/2017] [Indexed: 01/29/2023]
Abstract
Background: In Burkina Faso, phytotherapy is the main medical alternative used by populations to manage various diseases that affect the nervous system. The aim of the present study was to report medicinal plants with psychoactive properties used to treat neuropsychiatric disorders in the Hauts Bassins region, in the western zone of Burkina Faso. Methods: Through an ethnobotanical survey using structured questionnaire, 53 traditional healers (TH) were interviewed about neuropsychiatric disorders, medicinal plants and medical practices used to treat them. The survey was carried out over a period of three months. Results: The results report 66 plant species used to treat neuropsychiatric pathologies. Roots (36.2%) and leaves (29%) were the main plant parts used. Alone or associated, these parts were used to prepare drugs using mainly the decoction and the trituration methods. Remedies were administered via drink, fumigation and external applications. Conclusions: It appears from this study a real knowledge of neuropsychiatric disorders in the traditional medicine of Hauts Bassins area. The therapeutic remedies suggested in this work are a real interest in the fight against psychiatric and neurological diseases. In the future, identified plants could be used for searching antipsychotic or neuroprotective compounds.
Collapse
Affiliation(s)
- Prosper T Kinda
- Laboratoire de Biochimie et Chimie Appliquées, Université Ouaga I-Pr Joseph KI-ZERBO, 03 PB 7021 Ouagadougou 03, Burkina Faso.
| | - Patrice Zerbo
- Laboratoire de Biologie et écologie végétale, Université Ouaga I-Pr Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso.
| | - Samson Guenné
- Laboratoire de Biochimie et Chimie Appliquées, Université Ouaga I-Pr Joseph KI-ZERBO, 03 PB 7021 Ouagadougou 03, Burkina Faso.
| | - Moussa Compaoré
- Laboratoire de Biochimie et Chimie Appliquées, Université Ouaga I-Pr Joseph KI-ZERBO, 03 PB 7021 Ouagadougou 03, Burkina Faso.
| | - Alin Ciobica
- "Alexandru Ioan Cuza" University of Iasi, Faculty of Biology, Department of Research, Carol I Avenue, No. 20A, Iasi 700505, Romania.
| | - Martin Kiendrebeogo
- Laboratoire de Biochimie et Chimie Appliquées, Université Ouaga I-Pr Joseph KI-ZERBO, 03 PB 7021 Ouagadougou 03, Burkina Faso.
| |
Collapse
|
|
26
|
Stigmasterol retards the proliferation and pathological features of Trypanosoma congolense infection in rats and inhibits trypanosomal sialidase in vitro and in silico. Biomed Pharmacother 2017; 89:482-489. [DOI: 10.1016/j.biopha.2017.02.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 02/11/2017] [Accepted: 02/20/2017] [Indexed: 11/18/2022] Open
|
|
27
|
Ebiloma GU, Igoli JO, Katsoulis E, Donachie AM, Eze A, Gray AI, de Koning HP. Bioassay-guided isolation of active principles from Nigerian medicinal plants identifies new trypanocides with low toxicity and no cross-resistance to diamidines and arsenicals. JOURNAL OF ETHNOPHARMACOLOGY 2017; 202:256-264. [PMID: 28336470 DOI: 10.1016/j.jep.2017.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/19/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaves from the plant species studied herein are traditionally used in northern Nigeria against various protozoan infections. However, none of these herbal preparations have been standardized, nor have their toxicity to mammalian cells been investigated. In search of improved and non-toxic active antiprotozoal principles that are not cross-resistant with current anti-parasitics, we here report the results of the in vitro screening of extracts from seven selected medicinal plant species (Centrosema pubescens, Moringa oleifera, Tridax procumbens, Polyalthia longifolia, Newbouldia laevis, Eucalyptus maculate, Jathropha tanjorensis), used traditionally to treat kinetoplastid infections in Nigeria, and the isolation of their bioactive principles. AIM OF THE STUDY To investigate the efficacies of medicinal plant extracts, and of compounds isolated therefrom, against kinetoplastid parasites, assess cross-resistance to existing chemotherapy, and assay their toxicity against mammalian cells in vitro. MATERIAL AND METHODS Plants were extracted with hexane, ethyl acetate and methanol. Active principles were isolated by bioassay-led fractionation, testing for trypanocidal activity, and identified using NMR and mass spectrometry. EC50 values for their activity against wild-type and multi-drug resistant Trypanosoma brucei were obtained using the viability indicator dye resazurin. RESULTS Seven medicinal plants were evaluated for activity against selected kinetoplastid parasites. The result shows that crude extracts and isolated active compounds from Polyalthia longifolia and Eucalyptus maculata, in particular, display promising activity against drug-sensitive and multi-drug resistant Trypanosoma brucei. The EC50 value of a clerodane (16α-hydroxy-cleroda-3,13(14)-Z-dien-15,16-olide) isolated from Polyalthia longifolia was as low as 0.38µg/mL, while a triterpenoid (3β,13β-dihydroxy-urs-11-en-28-oic acid) isolated from Eucalyptus maculata displayed an EC50 of 1.58µg/mL. None of the isolated compounds displayed toxicity towards Human Embryonic Kidney cells at concentrations up to 400µg/mL. In addition, the isolated compounds were active against Leishmania mexicana, as well as against T. congolense. CONCLUSION We have isolated a clerodane compound from Polyalthia longifolia that shows low toxicity, no cross-resistance with current treatments, and promising activity against both human-infective and veterinary Trypanosoma species.
Collapse
Affiliation(s)
- Godwin Unekwuojo Ebiloma
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom; Department of Biochemistry, Faculty of Natural Sciences, Kogi State University, Nigeria
| | - John Ogbaji Igoli
- Department of Chemistry, College of Science, University of Agriculture, Makurdi, Nigeria; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Evangelos Katsoulis
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom
| | - Anne-Marie Donachie
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom
| | - Anthonius Eze
- Department of Biochemistry, College of Health sciences, University of Nigeria, Nigeria
| | - Alexander Ian Gray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Harry P de Koning
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom.
| |
Collapse
|
|
28
|
Basharat Z, Zaib S, Yasmin A. Computational study of some amoebicidal phytochemicals against heat shock protein of Naegleria fowleri. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2016.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
|
29
|
Binding of anti-Trypanosoma natural products from African flora against selected drug targets: a docking study. Med Chem Res 2017. [DOI: 10.1007/s00044-016-1764-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
|
30
|
Ntie-Kang F, Njume LE, Malange YI, Günther S, Sippl W, Yong JN. The Chemistry and Biological Activities of Natural Products from Northern African Plant Families: From Taccaceae to Zygophyllaceae. NATURAL PRODUCTS AND BIOPROSPECTING 2016; 6:63-96. [PMID: 26931529 PMCID: PMC4805656 DOI: 10.1007/s13659-016-0091-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/15/2016] [Indexed: 05/14/2023]
Abstract
Traditional medicinal practices have a profound influence on the daily lives of people living in developing countries, particularly in Africa, since the populations cannot generally afford the cost of Western medicines. We have undertaken to investigate the correlation between the uses of plants in Traditional African medicine and the biological activities of the derived natural products, with the aim to validate the use of traditional medicine in Northern African communities. The literature is covered for the period 1959-2015 and part III of this review series focuses on plant families with names beginning with letters T to Z. The authors have focused on curating data from journals in natural products and phytomedicine. Within each journal home page, a query search based on country name was conducted. All articles "hits" were then verified, one at a time, that the species was harvested within the Northern African geographical regions. The current data partly constitutes the bases for the development of the Northern African natural compounds database. The review discusses 284 plant-based natural compounds from 34 species and 11 families. It was observed that the ethnobotanical uses of less than 40 % of the plant species surveyed correlated with the bioactivities of compounds identified.
Collapse
Affiliation(s)
- Fidele Ntie-Kang
- />Department of Pharmaceutical Chemistry, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
- />Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Leonel E. Njume
- />Department of Chemistry, Faculty of Science, Chemical and Bioactivity Information Centre, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Yvette I. Malange
- />Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Stefan Günther
- />Institute of Pharmaceutical Sciences, Research Group Pharmaceutical Bioinformatics, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Strasse 9, 79104 Freiburg, Germany
| | - Wolfgang Sippl
- />Department of Pharmaceutical Chemistry, Martin-Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Joseph N. Yong
- />Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| |
Collapse
|