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Moussavi N, van der Ent W, Diallo D, Sanogo R, Malterud KE, Esguerra CV, Wangensteen H. Inhibition of Seizure-Like Paroxysms and Toxicity Effects of Securidaca longepedunculata Extracts and Constituents in Zebrafish Danio rerio. ACS Chem Neurosci 2024; 15:617-628. [PMID: 38270158 PMCID: PMC10853935 DOI: 10.1021/acschemneuro.3c00642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/08/2024] [Accepted: 01/15/2024] [Indexed: 01/26/2024] Open
Abstract
Plants used in traditional medicine in the management of epilepsy could potentially yield novel drug compounds with antiepileptic properties. The medicinal plant Securidaca longepedunculata is widely used in traditional medicine in the African continent, and epilepsy is among several indications. Limited knowledge is available on its toxicity and medicinal effects, such as anticonvulsant activities. This study explores the potential in vivo inhibition of seizure-like paroxysms and toxicity effects of dichloromethane (DCM) and ethanol (EtOH) extracts, as well as isolated xanthones and benzoates of S. longepedunculata. Ten phenolic compounds were isolated from the DCM extract. All of the substances were identified by nuclear magnetic resonance spectroscopy. Assays for toxicity and inhibition of pentylenetetrazole (PTZ)-induced seizure-like paroxysms were performed in zebrafish larvae. Among the compounds assessed in the assay for maximum tolerated concentration (MTC), benzyl-2-hydroxy-6-methoxy-benzoate (MTC 12.5 μM), 4,8-dihydroxy-1,2,3,5,6-pentamethoxyxanthone (MTC 25 μM), and 1,7-dihydroxy-4-methoxyxanthone (MTC 6.25 μM) were the most toxic. The DCM extract, 1,7-dihydroxy-4-methoxyxanthone and 2-hydroxy-1,7-dimethoxyxanthone displayed the most significant inhibition of paroxysms by altering the locomotor behavior in GABAA receptor antagonist, PTZ, which induced seizures in larval zebrafish. The EtOH extract, benzyl benzoate, and benzyl-2-hydroxy-6-methoxy-benzoate unexpectedly increased locomotor activity in treated larval zebrafish and decreased locomotor activity in nontreated larval zebrafish, seemingly due to paradoxical excitation. The results reveal promising medicinal activities of this plant, contributing to our understanding of its use as an antiepileptic drug. It also shows us the presence of potentially new lead compounds for future drug development.
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Affiliation(s)
- Nastaran Moussavi
- Section
for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Oslo 0316, Norway
| | - Wietske van der Ent
- NCMM,
Chemical Neuroscience Group, Centre for Molecular Medicine Norway,
Faculty of Medicine, University of Oslo, Oslo 0349, Norway
| | - Drissa Diallo
- Department
of Traditional Medicine, National Institute
of Public Health, PB, Bamako 1746, Mali
- Faculty
of Pharmacy, University of Sciences, Techniques
and Technologies of Bamako (USTTB), Bamako 1746, Mali
| | - Rokia Sanogo
- Department
of Traditional Medicine, National Institute
of Public Health, PB, Bamako 1746, Mali
- Faculty
of Pharmacy, University of Sciences, Techniques
and Technologies of Bamako (USTTB), Bamako 1746, Mali
| | - Karl E. Malterud
- Section
for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Oslo 0316, Norway
| | - Camila V. Esguerra
- Section
for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, P.O.
Box 1068, Oslo 0316, Norway
| | - Helle Wangensteen
- Section
for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Oslo 0316, Norway
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Moussavi N, Mounkoro PP, Dembele SM, Ballo NN, Togola A, Diallo D, Sanogo R, Wangensteen H, Paulsen BS. Polyherbal Combinations Used by Traditional Health Practitioners against Mental Illnesses in Bamako, Mali, West Africa. Plants (Basel) 2024; 13:454. [PMID: 38337987 PMCID: PMC10857219 DOI: 10.3390/plants13030454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
This study explores the traditional knowledge of plants used by traditional health practitioners (THPs) in the treatment of symptoms or syndromes related to mental illnesses in the district of Bamako in Mali, along with the identification of affiliated traditional treating methods. An exploratory and cross-sectional ethnopharmacological survey was conducted in the district of Bamako. The Malian Federation of Associations of Therapists and Herbalists (FEMATH) assisted in the identification and inclusion of the THPs. Data sampling included semi-structured interviews, questionnaires, and in-depth interviews. Quantitative data were evaluated by analysing reports of the use of different medicinal plants and the number of participants. Fifteen THPs belonging to the district of Bamako participated. In total, 43 medicinal plants belonging to 22 plant families were used by the THPs. The most cited plant species was Securidaca longepedunculata (violet tree), followed by Khaya senegalensis (African mahogany) and Boscia integrifolia (rough-leaved shepherds tree). A great number of herbal combinations, preparation methods, and administration routes were used, often with honey as an adjuvant. To our knowledge, this is the first ethnobotanical survey on the use of medicinal plants in the treatment of all types of mental disorders in Bamako.
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Affiliation(s)
- Nastaran Moussavi
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway; (H.W.); (B.S.P.)
| | - Pierre Pakuy Mounkoro
- Faculty of Medicine and Odonto-Stomatology, University of Sciences, Techniques and Technologies of Bamako (USTTB), Bamako BP1805, Mali
| | - Seydou Mamadou Dembele
- Department of Traditional Medicine, National Institute of Public Health, Bamako PB1746, Mali; (S.M.D.); (N.N.B.); (A.T.); (R.S.)
| | - Nfla Ngolo Ballo
- Department of Traditional Medicine, National Institute of Public Health, Bamako PB1746, Mali; (S.M.D.); (N.N.B.); (A.T.); (R.S.)
| | - Adiaratou Togola
- Department of Traditional Medicine, National Institute of Public Health, Bamako PB1746, Mali; (S.M.D.); (N.N.B.); (A.T.); (R.S.)
- Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako (USTTB), Bamako BP1805, Mali
| | - Drissa Diallo
- Department of Traditional Medicine, National Institute of Public Health, Bamako PB1746, Mali; (S.M.D.); (N.N.B.); (A.T.); (R.S.)
- Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako (USTTB), Bamako BP1805, Mali
| | - Rokia Sanogo
- Department of Traditional Medicine, National Institute of Public Health, Bamako PB1746, Mali; (S.M.D.); (N.N.B.); (A.T.); (R.S.)
- Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako (USTTB), Bamako BP1805, Mali
| | - Helle Wangensteen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway; (H.W.); (B.S.P.)
| | - Berit Smestad Paulsen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway; (H.W.); (B.S.P.)
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Dénou A, Togola A, Inngjerdingen KT, Moussavi N, Rise F, Zou YF, Dafam DG, Nep EI, Ahmed A, Alemika TE, Diallo D, Sanogo R, Paulsen BS. Isolation, characterisation and complement fixation activity of acidic polysaccharides from Argemone mexicana used as antimalarials in Mali. Pharm Biol 2022; 60:1278-1285. [PMID: 35797701 PMCID: PMC9272928 DOI: 10.1080/13880209.2022.2089691] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/13/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Global studies on Argemone mexicana L. (Papaveraceae) traditionally used against malaria in Mali are limited to its low-mass compounds activities, and little information on its bioactive polysaccharides is available. OBJECTIVE This study determines the structure and the immunomodulatory activity of polysaccharides from aerial parts of A. mexicana. MATERIALS AND METHODS Acidic polysaccharides from this plant material named HMAmA1 and HMAmA2 were isolated from water extracts. Their monosaccharide composition was determined by gas chromatography. Glycosidic linkages were determined using GC-MS. NMR was also applied. The polymers were tested for effects on the human complement system in vitro at different doses. RESULTS The monosaccharide composition showed that the two polysaccharides contained in different amounts the following monomers: arabinose, rhamnose, galactose, and galacturonic acid. Overall structural analysis showed the presence of a low ratio of 1,2-linked rhamnose compared to 1,4-linked galacturonic acid with arabinogalactans substituted on position 4 of rhamnose. NMR data showed the presence of galacturonans alternated by rhamnogalacturonans bearing arabinose and galactose units. α-Linkages were found for l-arabinose, l-rhamnose and d-galacturonic acid, while β-linkages were found for d-galactose. The two polysaccharides exhibited strong complement fixation activities, with HMAmA1 being the highest potent fraction. ICH50 value of HMAmA1 was 5 µg/mL, compared to the control BPII being 15.9 µg/mL. DISCUSSION AND CONCLUSIONS Polysaccharides form A. mexicana presented a complement fixation effect. The complement system is an important part of the immune defense, and compounds acting on the cascade are of interest. Therefore, these polymers may be useful as immunodulatory agents.
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Affiliation(s)
- Adama Dénou
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
- Department of Pharmacognosy and Traditional Medicine, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Adiaratou Togola
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | | | - Nastaran Moussavi
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Frode Rise
- Department of Chemistry, University of Oslo, Oslo, Norway
| | - Yuan Feng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, P.R. China
| | - Dalen G. Dafam
- Department of Pharmacognosy and Traditional Medicine, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Elijah I. Nep
- Department of Pharmacognosy and Traditional Medicine, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Abubakar Ahmed
- Department of Pharmacognosy and Traditional Medicine, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Taiwo E. Alemika
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Drissa Diallo
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | - Rokia Sanogo
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | - Berit Smestad Paulsen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, Oslo, Norway
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Moussavi N, Azizullah H, Malterud KE, Inngjerdingen KT, Wangensteen H. Immunomodulating polyphenols from Sideritis scardica. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Moussavi N, Malterud KE, Mikolo B, Dawes D, Chandre F, Corbel V, Massamba D, Overgaard HJ, Wangensteen H. Identification of chemical constituents of Zanthoxylum heitzii stem bark and their insecticidal activity against the malaria mosquito Anopheles gambiae. Parasit Vectors 2015; 8:503. [PMID: 26427956 PMCID: PMC4591583 DOI: 10.1186/s13071-015-1113-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/24/2015] [Indexed: 02/08/2023] Open
Abstract
Background Zanthoxylum heitzii bark extracts have insecticidal properties and have been reported to be used against malaria in Western Africa. Previously, it has been shown that a hexane extract of the bark is toxic to adult females of the mosquito Anopheles gambiae, a malaria vector. As part of our project on the control of malaria vectors using plant extracts, the phytochemistry of Z. heitzii bark hexane extract has been investigated with the aim to identify the major components with adulticidal and larvicidal effects on An. gambiae. Methods Z. heitzii stem bark was extracted with hexane, and the extract was fractionated to isolate major components from the bark, identified by NMR spectroscopy. Isolated compounds were tested for toxicity towards adult female An. gambiae mosquitoes and for larvicidal effects towards An. gambiae. Results The alkaloid dihydronitidine, the sesquiterpenoid caryophyllene oxide, the amide pellitorine and the lignan sesamin were identified as the major constituents in Z. heitzii bark. Pellitorine was toxic to both adult insects (LD50 50 ng/mg insect) and larvae (LD50 13 μg/ml). None of the other compounds were toxic to adults, but caryophyllene oxide and sesamin exhibited moderate larvicidal effects (LD50 > 150 μg/ml). A mixture of the four compounds in the same ratio as in the hexane extract showed higher toxicity (LD50 34 ng/mg insect) towards adult insects than the pure compounds. Conclusion The toxicity of Z. heitzii bark hexane extract to An. gambiae is mostly due to pellitorine, although interactions between pellitorine and other, inactive constituents may enhance the activity of the extract.
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Affiliation(s)
- Nastaran Moussavi
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Karl Egil Malterud
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Bertin Mikolo
- National Polytechnic High School, Marien Ngouabi University, BP 69, Brazzaville, Republic of Congo.
| | - Dag Dawes
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Fabrice Chandre
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France.
| | - Vincent Corbel
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France.
| | - Daniel Massamba
- National Polytechnic High School, Marien Ngouabi University, BP 69, Brazzaville, Republic of Congo.
| | - Hans J Overgaard
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France. .,Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, P.O. Box 5003, Ås, Norway. .,Department of Entomology, Kasetsart University, Bangkok, Thailand.
| | - Helle Wangensteen
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
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Moussavi N, Renier G, Roussin A, Mamputu JC, Buithieu J, Serri O. Lack of concordance between plasma markers of cardiovascular risk and intima-media thickness in patients with type 2 diabetes. Diabetes Obes Metab 2004; 6:69-77. [PMID: 14686966 DOI: 10.1111/j.1463-1326.2004.00319.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM Endothelial dysfunction, oxidative stress and systemic inflammation play an important role in the enhanced cardiovascular risk in diabetes. Carotid intima-media thickness (IMT), a widely accepted marker of subclinical atherosclerosis, is known to be increased in patients with type 2 diabetes. The relationships between plasma markers of cardiac risk and carotid IMT are not well known. We therefore studied a group of patients with type 2 diabetes to evaluate the relationships between plasma markers of cardiac risk and carotid IMT. DESIGN AND PATIENTS We measured carotid IMT and the levels of soluble endothelial adhesion molecules [sE-selectin, intercellular cell adhesion molecule-1 (sICAM-1) and vascular cell adhesion molecule-1 (sVCAM-1)], C-reactive protein (CRP) and 8-isoprostane in 40 patients with type 2 diabetes without clinical macrovascular complications (HbA1c<10%, duration of diabetes<12 years) and 25 healthy subjects. We then examined the correlations between these plasma markers, carotid IMT and various clinical and biochemical parameters. RESULTS Diabetic patients had higher plasma sE-selectin (p=0.03), sICAM-1 (p=0.05), CRP (p=0.047) and 8-isoprostane (p=0.001) concentrations than control subjects. Mean IMT values were identical (0.63 +/- 0.02 mm) in diabetic (range, 0.40-0.92 mm) and healthy subjects (range, 0.45-0.85 mm). In diabetic patients, stepwise multivariate analysis showed that HbA1c and plasma glucose were independent predictors of sE-selectin (r2=0.19 and r2=0.17, p<0.01, respectively), whereas waist circumference and body mass index (BMI) were predictors of sICAM-1 (r2=0.27, p=0.001 and r2=0.22, p=0.002, respectively). Waist circumference was the only predictor of CRP (r2=0.2, p<0.01), and systolic blood pressure was the only predictor of 8-isoprostane (r2=0.19, p=0.006). In control subjects, similar analysis showed that plasma glucose and waist circumference were predictors of sE-selectin and sICAM-1, respectively (r2=0.2, p<0.05). CONCLUSIONS These results indicate that some well-controlled type 2 diabetic patients free of clinical macrovascular complications have elevated plasma markers of cardiovascular risk without having increased IMT. The elevation of plasma markers of endothelial cell activation (sE-selectin and s-ICAM-1) or inflammation (CRP) and oxidative stress (8-isoprostane) in diabetics vs. controls is distinct from and cannot be explained simply by differences in the burden of atherosclerosis as assessed by carotid IMT.
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Affiliation(s)
- N Moussavi
- Research Centre, CHUM, Notre-Dame Hospital and Department of Nutrition, University of Montreal, Montreal, Canada
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Affiliation(s)
- T K Bajwa
- Department of Medicine, University of Wisconsin Medical School-Milwaukee Clinical Campus, Milwaukee Heart Institute of Sinai Samaritan Medical Center, USA
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