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Kantati YT, Kodjo MK, Lefranc B, Basille-Dugay M, Hupin S, Schmitz I, Leprince J, Gbeassor M, Vaudry D. Neuroprotective Effect of Sterculia setigera Leaves Hydroethanolic Extract. J Mol Neurosci 2024; 74:44. [PMID: 38630337 DOI: 10.1007/s12031-024-02222-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 04/06/2024] [Indexed: 04/19/2024]
Abstract
Plants are a valuable source of information for pharmacological research and new drug discovery. The present study aimed to evaluate the neuroprotective potential of the leaves of the medicinal plant Sterculia setigera. In vitro, the effect of Sterculia setigera leaves dry hydroethanolic extract (SSE) was tested on cultured cerebellar granule neurons (CGN) survival when exposed to hydrogen peroxide (H2O2) or 6-hydroxydopamine (6-OHDA), using the viability probe fluorescein diacetate (FDA), a lactate dehydrogenase (LDH) activity assay, an immunocytochemical staining against Gap 43, and the quantification of the expression of genes involved in apoptosis, necrosis, or oxidative stress. In vivo, the effect of intraperitoneal (ip) injection of SSE was assessed on the developing brain of 8-day-old Wistar rats exposed to ethanol neurotoxicity by measuring caspase-3 activity on cerebellum homogenates, the expression of some genes in tissue extracts, the thickness of cerebellar cortical layers and motor coordination. In vitro, SSE protected CGN against H2O2 and 6-OHDA-induced cell death at a dose of 10 µg/mL, inhibited the expression of genes Casp3 and Bad, and upregulated the expression of Cat and Gpx7. In vivo, SSE significantly blocked the deleterious effect of ethanol by reducing the activity of caspase-3, inhibiting the expression of Bax and Tp53, preventing the reduction of the thickness of the internal granule cell layer of the cerebellar cortex, and restoring motor functions. Sterculia setigera exerts neuroactive functions as claimed by traditional medicine and should be a good candidate for the development of a neuroprotective treatment against neurodegenerative diseases.
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Affiliation(s)
- Yendubé T Kantati
- Univ Rouen Normandie, Normandie Univ, NorDiC UMR 1239, 76000, Inserm, Rouen, France
- Laboratory of Physiology/Pharmacology, Physiopathology Bioactive Substances and Innocuity Research Unit (PBSI), Faculty of Sciences, of Lomé, Lomé, Togo, 01BP 1515
| | - Magloire K Kodjo
- Laboratory of Physiology/Pharmacology, Physiopathology Bioactive Substances and Innocuity Research Unit (PBSI), Faculty of Sciences, of Lomé, Lomé, Togo, 01BP 1515
| | - Benjamin Lefranc
- Univ Rouen Normandie, Normandie Univ, NorDiC UMR 1239, 76000, Inserm, Rouen, France
- Univ Rouen Normandie, CNRS, Normandie Univ, HeRacLeS US 51 UAR 2026, 76000, Inserm, Rouen, France
| | - Magali Basille-Dugay
- Univ Rouen Normandie, Normandie Univ, NorDiC UMR 1239, 76000, Inserm, Rouen, France
| | - Sébastien Hupin
- UMR 6014, Normandie Université, COBRA, Université de Rouen, INSA de Rouen-Normandie, CNRS, IRCOF, 3038, Mont Saint Aignan Cedex, FR, France
| | - Isabelle Schmitz
- UMR 6014, Normandie Université, COBRA, Université de Rouen, INSA de Rouen-Normandie, CNRS, IRCOF, 3038, Mont Saint Aignan Cedex, FR, France
- UMR 6270, Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, 76000, Rouen, France
| | - Jérôme Leprince
- Univ Rouen Normandie, Normandie Univ, NorDiC UMR 1239, 76000, Inserm, Rouen, France
- Univ Rouen Normandie, CNRS, Normandie Univ, HeRacLeS US 51 UAR 2026, 76000, Inserm, Rouen, France
| | - Messanvi Gbeassor
- Laboratory of Physiology/Pharmacology, Physiopathology Bioactive Substances and Innocuity Research Unit (PBSI), Faculty of Sciences, of Lomé, Lomé, Togo, 01BP 1515
| | - David Vaudry
- Univ Rouen Normandie, CNRS, Normandie Univ, HeRacLeS US 51 UAR 2026, 76000, Inserm, Rouen, France.
- UMR 1245, Laboratory of Cancer and Brain Genomics, Univ Rouen Normandie, Normandie Univ, 76000, Inserm, Rouen, France.
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Ohouko OFH, Koudouvo K, Dougnon TJ, Agbonon A, Karim IYA, Farougou S, Gbeassor M. African swine fever in Benin and prevalence of the disease in Southern Benin: A retrospective study (2014-2018). J Adv Vet Anim Res 2020; 7:464-470. [PMID: 33005672 PMCID: PMC7521817 DOI: 10.5455/javar.2020.g442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE This study aimed to assess the prevalence and risk factors of African swine fever (ASF) disease in Benin. MATERIALS AND METHODS A retrospective study was conducted on 70 pig farms from the Departement of Atlantique and Ouémé and also by using the data available from the Directorate of Livestock on the spread of ASF in Benin from 2014 to 2018. The prevalence of ASF was assessed with 106 nasal swabs from apparently healthy domestic pigs and 15 organ samples from dead ASF-suspected pigs. ASF virus detection was carried out by conventional polymerase chain reaction using Qiagen Kit for DNA extraction. Data recorded were processed with SAS software (2006). RESULTS It appears that ASF is an endemic disease in Benin with the Department of Ouémé as the hotspot of dissemination of the virus in the country. The losses due to ASF recorded from 2014 to 2018 are evaluated to 884,850,000 CFA Franc by estimating the average cost of a pig at 25,000 FCFA. A prevalence of 1.89% (CI at 95%, 0.71-3.49) was recorded for live animals with a positive result in organs from all dead pigs suspected of ASF. Breeding practices related to the sharing of breeding males, scavenging pigs, and non-compliance with biosecurity measures were the risk factors identified. CONCLUSION The present study sheds light on the areas prone to the ASF virus in Benin. Moreover, the cross-sectional data recorded on the prevalence of ASF will help to better rule on the spread of the disease. It would be interesting for the Beninese Republic to increase its efforts for ASF control.
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Affiliation(s)
- Okri Fréjus Hans Ohouko
- Research Unit in Applied Microbiology and Pharmacology of Natural Substances URMAPha, Laboratory of Research in Applied Biology LARBA, University of Abomey-Calavi, Cotonou, Benin
- Centre of Training and Research in Medicinal Plant CERFOPLAM, Laboratory of Physiology and Pharmacology of Natural Substances, Faculty of Science, University of Lome, Lome, Togo
| | - Koffi Koudouvo
- Centre of Training and Research in Medicinal Plant CERFOPLAM, Laboratory of Physiology and Pharmacology of Natural Substances, Faculty of Science, University of Lome, Lome, Togo
| | - Tossou Jacques Dougnon
- Research Unit in Applied Microbiology and Pharmacology of Natural Substances URMAPha, Laboratory of Research in Applied Biology LARBA, University of Abomey-Calavi, Cotonou, Benin
| | - Amegnona Agbonon
- Centre of Training and Research in Medicinal Plant CERFOPLAM, Laboratory of Physiology and Pharmacology of Natural Substances, Faculty of Science, University of Lome, Lome, Togo
| | - Issaka Youssao Abdou Karim
- Laboratory of Animal Biotechnology and Meat Technology LBATV, Department of Animal Health and Production, Polytechnic School of Abomey Calavi, University of Abomey-Calavi, Cotonou, Benin
| | - Souaïbou Farougou
- Department of Animal Health and Production, Research Unit on Communicable Diseases URMAT, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
| | - Messanvi Gbeassor
- Centre of Training and Research in Medicinal Plant CERFOPLAM, Laboratory of Physiology and Pharmacology of Natural Substances, Faculty of Science, University of Lome, Lome, Togo
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Nideou D, N`nanle O, Kouame Y, Chrysostom C, Gbeassor M, Decuypere E, Tona K. Effect of High Temperature During First and Second Halves of Incubation on Layer Chicken Embryo Physiology. ACTA ACUST UNITED AC 2019. [DOI: 10.3923/ijps.2019.626.633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tété-Bénissan A, Dégbé M, Maman H, Banla AK, Balogou A, Aklikokou K, Gbeassor M. Seroprevalence and Risk Factors of Toxoplasmosis in Togo. ACTA ACUST UNITED AC 2018. [DOI: 10.19044/esj.2018.v14n33p56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objectives: Toxoplasmosis is caused by Toxoplasma gondii. 50 to 70% of African are contaminated and 60% to 80% in Togo. This parasitic infection involves disorders in immunocompromised persons and pregnant women. The purpose of this study is to evaluate the seroprevalence of toxoplasmosis and the risk factors of contamination in the Togolese population. Methods: Prospective studies from January 2012 to December 2015 concerned 7076 patients. A survey on the risk factors for Toxoplasma gondii contamination has done. The seroprevalence was monitored by examining serological antibodies IgG and IgM using ELISA method. Sampling of 200 excreta of domestic cats were analyzed by coproscopy examinations Results: The average age was 32.61±6.80 years old. The seroprevalence of IgM was 2.85%; and for IgG 59.7%. IgG were high in men (67.0% vs. 58.6%, p<0.0001); IgM were high in women (2.81% vs. 1.85%, p<0.01). In this study, we observed 57.49% immunized subjects. Regarding potential risk factors for contamination, the survey revealed that 80.5% of subjects consume raw garden produce, 65.4% non-potable and 8.3% undercooked meat. In cats, 20.5% of them excreted oocysts of Toxoplasma gondii. Conclusion: The prevalence of the toxoplasmosis was high in the Togolese population because the risks factors were variable and the level of contamination were high too. The country’s health authorities, especially for the pregnant women, should install sensitization and prevention programs on the risks of the contamination of toxoplasmosis. The high proportion of the young subjects affected constitutes a socio-economical danger for the country.
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Kpegba K, Kondo ET, Simalou O, Togbenou K, Boyode P, Toundou O, Gbandjaba NY, Agbonon A, Gbeassor M. A significant antihypertensive effect of Holarrhena floribunda supported by an exploratory phytochemical study. J Herbmed Pharmacol 2018. [DOI: 10.15171/jhp.2018.27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Pakoussi T, Mouzou AP, Metowogo K, Aklikokou KA, Gbeassor M. How do Spondias mombin L ( Anacardiaceae) leaves extract increase uterine smooth muscle contractions to facilitate child birth in parturient women? Afr Health Sci 2018; 18:235-243. [PMID: 30602948 PMCID: PMC6306990 DOI: 10.4314/ahs.v18i2.6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background Spondias mombin L. (Anacardiaceae) leaves were used in Togolese folk to treat dystocia, expel placenta and manage post-partum hemorrhage during child birth. Objectives This study aimed to establish how the extract of S. mombin leaves increase uterine smooth muscle contractions relevant to its traditional use to facilitate child birth. Methods Tests were performed on uterus muscle strips from Sprague-Dawley rats. Central portion of uterine horns were dissected, cleaned of surrounding fat and loose connective tissue, and cut longitudinally into strips which were placed in the organ bath for isometric tension record in presence of different substances. Results S. mombin leaves extract increased uterine spontaneous contractions. This effect was reduced by indomethacin (2 × 10-6 M), yohimbine (2 × 10-6 M) and 2-aminoethoxydiphenyl borate (2-APB) (5 × 10-5 M), but not by atropine (3.45 × 10-8 M) and cholesterol (2.5 mg/ml). Conclusion The pharmacological justification for the traditional use of S. mombin leaves to treat dystocia and expel placenta was that its hydro-ethanolic extract induced prostaglandins release, α2-adrenoceptors stimulation, calcium release from internal stores and lifted inhibitory effect of cholesterol on uterine contractions in order to increase uterine smooth muscle contractions.
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Affiliation(s)
- Tcha Pakoussi
- Laboratory of Physiology/Pharmacology, Faculty of Sciences, University of Lomé-Togo
| | - Aklesso P Mouzou
- Laboratory of Physiology/Pharmacology, Faculty of Sciences, University of Lomé-Togo
| | - Kossi Metowogo
- Laboratory of Physiology/Pharmacology, Faculty of Sciences, University of Lomé-Togo
| | - Kodjo A Aklikokou
- Laboratory of Physiology/Pharmacology, Faculty of Sciences, University of Lomé-Togo
- Research and Formation Center on Medicinal Plants (CERFOPLAM), University of Lomé-Togo
| | - Messanvi Gbeassor
- Laboratory of Physiology/Pharmacology, Faculty of Sciences, University of Lomé-Togo
- Research and Formation Center on Medicinal Plants (CERFOPLAM), University of Lomé-Togo
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Dégbé M, Debierre-Grockiego F, Tété-Bénissan A, Débare H, Aklikokou K, Dimier-Poisson I, Gbeassor M. Extracts of Tectona grandis and Vernonia amygdalina have anti-Toxoplasma and pro-inflammatory properties in vitro. ACTA ACUST UNITED AC 2018. [PMID: 29533762 PMCID: PMC5849417 DOI: 10.1051/parasite/2018014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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] [Indexed: 11/14/2022]
Abstract
Tectona grandis (teak) and Vernonia amygdalina (bitter leaf) are plants used in traditional medicine in West Africa. In this study, we tested ethanolic and hydro-ethanolic extracts of bark and leaves of T. grandis and ethanolic extract of leaves of V. amygdalina for their inhibitory effect on Toxoplasma gondii, a protozoan parasite responsible for toxoplasmosis. Ethanolic extract of V. amygdalina leaves had proportional contents of phenols, tannins, flavonoids, and polysaccharides. This extract presented the highest efficacy against T. gondii, the lowest cytotoxicity to mammalian cells, but moderate anti-oxidant activity compared to other plant extracts. Ethanolic extract of T. grandis bark also had elevated anti-T. gondii activity, low cytotoxicity on mammalian cells, and one of the highest anti-oxidant activities. However, the phytochemical content of this extract was not very different from the hydro-ethanolic extract, which had no anti-T. gondii activity. In addition, ethanolic extract of V. amygdalina leaves, but not of T. grandis bark, significantly increased the production of TNF-α and NO by antigen-presenting cells. Both extracts had the tendency to decrease expression of major histocompatibility complex molecules at the surface of antigen-presenting cells, while they did not modulate the percentage of apoptotic cells. A study of signalling pathways would help to determine the mechanisms of action of these plant extracts.
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Affiliation(s)
- Mlatovi Dégbé
- Laboratoire de Physiologie et de Pharmacologie des Substances Naturelles, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé 01, Togo
| | | | - Amivi Tété-Bénissan
- Laboratoire de Physiologie et de Pharmacologie des Substances Naturelles, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé 01, Togo
| | | | - Kodjo Aklikokou
- Laboratoire de Physiologie et de Pharmacologie des Substances Naturelles, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé 01, Togo
| | | | - Messanvi Gbeassor
- Laboratoire de Physiologie et de Pharmacologie des Substances Naturelles, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé 01, Togo
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Agbonon A, Idoh K, Dosseh K, Kpatcha T, Gbeassor M. Protective effect of Combretum Hypopilinum diels: Root bark extract against CCl4-Induced hepatotoxicity in wistar rats. Pharmacognosy Res 2018. [DOI: 10.4103/pr.pr_27_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Bouassi T, Ameyapoh Y, Van Hamme V, Anani K, Adjrah Y, Decuypere E, Gbeassor M, Tona K. Effect of Mixing ACIDAL® with Drinking Water for Laying Hens on Production Performance. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/ijps.2016.365.372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Introduction In the traditional sports like the fight, natural products from minerals, animals and plants are used to increase physical resistance and performance. For a better understanding of this practice, an ethnopharmacological survey was carried out in kabyè land, North of Togo, to identify current plants used as foods plants during traditional wrestling. Methods Ethnopharmacological data were collected through semi-structured method and personal interviewsin the Kabyè locality during traditional wrestling. At least, twelve villages were surveyed in the study. Results Results indicated that 57 plants are widely used by local people as food plants generally during wrestling time. These plants are used traditionally for many others purposes. Conclusion We concluded that these plants may serve as sources for pharmacological investigations in physical performance improvement.
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Affiliation(s)
- Tchazou Kpatcha
- Laboratoire de Physiologie/Pharmacologie, Faculté des Sciences, Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé BP 1515 Lomé, Togo
| | - Amegnona Agbonon
- Laboratoire de Physiologie/Pharmacologie, Faculté des Sciences, Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé BP 1515 Lomé, Togo
| | - Messanvi Gbeassor
- Laboratoire de Physiologie/Pharmacologie, Faculté des Sciences, Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé BP 1515 Lomé, Togo
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Idoh K, Agbonon A, Potchoo Y, Gbeassor M. Toxicological assessment of the hydroethanolic leaf extract of clerodendrum capitatum in Wistar rats. Pan Afr Med J 2016; 24:66. [PMID: 27642406 PMCID: PMC5012807 DOI: 10.11604/pamj.2016.24.66.8771] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 02/09/2016] [Indexed: 11/16/2022] Open
Abstract
Introduction Clerodendrum capitatum (Willd) Schumach. & Thonn (Lamiaceae) is used in African traditional medicine for the treatment of malaria, hypertension, obesity, jaundice and diabetes however there is lack of experimental data on its possible toxicity. This study investigated the acute and 28 days sub-chronic toxicity of C. capitatum in Wistar rats. Methods In acute toxicity tests, a single administration of the hydroethanolic C. capitatum leaf extract (5 g/kg) was given orally to 5 female rats. The general behavior, adverse effects and mortality were recorded for up to 14 days post treatment. On the 15th day, the rats were weighed and euthanized for necropsy. In sub-chronic toxicity tests, the extract (4, 8 and 16 g/kg/day) was given orally to both male and female rats for 28 days. The animal body weight was recorded throughout the experiment, while hematological and biochemical parameters of blood and relative organs weights were evaluated on the 29th day. Results Clerodendrum Capitatum did not cause any death or any hazardous symptoms of acute toxicity, showing an LD50 higher than 5 g/kg. Sub-chronic administration of C. capitatum resulted in no noticeable changes in weight gain and water or food consumption. White blood cells and hemoglobin increased while urea concentration, liver enzymes, total cholesterol and glucose concentrations significantly decreased in treated animals. No changes in macroscopical aspect of organs were observed in the animals. Conclusion These results showed that acute or sub-chronic oral administration of the hydroethanolic leaf extract of Clerodendrum capitatum may be considered as relatively free of toxicity.
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Affiliation(s)
- Kokou Idoh
- Laboratory of Physiology, Pharmacology and Toxicology, Faculty of Sciences, University of Lomé, Lomé, Togo
| | - Amegnona Agbonon
- Laboratory of Physiology, Pharmacology and Toxicology, Faculty of Sciences, University of Lomé, Lomé, Togo
| | - Yao Potchoo
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Health Sciences, University of Lomé, Lomé, Togo
| | - Messanvi Gbeassor
- Laboratory of Physiology, Pharmacology and Toxicology, Faculty of Sciences, University of Lomé, Lomé, Togo
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Tessou Kadébé Z, Metowogo K, Bakoma B, Poevi Lawson-Evi S, Eklu-Gadegbeku K, Aklikokou K, Gbeassor M. Antidiabetic Activity of Plumeria Alba Linn (Apocynaceae) Root Extract and Fractions in Streptozotocin-Induced Diabetic Rats. TROP J PHARM RES 2016. [DOI: 10.4314/tjpr.v15i1.12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Agbodeka K, Gbekley HE, Karou SD, Anani K, Agbonon A, Tchacondo T, Batawila K, Simpore J, Gbeassor M. Ethnobotanical Study of Medicinal Plants Used for the Treatment of Malaria in the Plateau Region, Togo. Pharmacognosy Res 2016; 8:S12-8. [PMID: 27114686 PMCID: PMC4821101 DOI: 10.4103/0974-8490.178646] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND In Togo, malaria constitutes a major public health problem but, until now, the population still mostly relies on herbal medicine for healing. This study aimed to document medicinal plants used for malaria therapy in the Plateau region of the country. METHODOLOGY Semi-structured questionnaire interviews were used to gather ethnobotanical and sociodemographic data from traditional healers of the study area. RESULTS A total of 61 plants species belonging to 33 families were found to be in use for malaria therapy in the Plateau region. Caesalpiniaceae were the most represented family with 7 species, followed by Euphorbiaceae and Poaceae with 4 species each. According to the relative frequency of citation (RFC), Newbouldia laevis Seem. (RFC =0.52), Sarcocephalus latifolius (Sm.) E.A. Bruce (RFC =0.48), Acanthospermum hispidum DC. (RFC =0.43), and Senna siamea (Lam.) H.S. Irwin and Barneby (RFC =0.40) were the most cited in the treatment of malaria in the traditional medicine in the Plateau region. The parts of plants used could either be the barks, roots, leaves, or whole plants. The recipes also could be a combination of various species of plants or plant parts. CONCLUSION This study highlights the potential sources for the development of new antimalarial drugs from indigenous medicinal plants found in the Plateau region of Togo. Such results could be a starting point for in vitro antimalarial screenings. SUMMARY 61 plants species from 33 families are use for malaria therapy in the Plateau region of TogoThe main families are Caesalpiniaceae Euphorbiaceae and PoaceaeThe most used species are Newbouldia laevis Seem. (RFC = 0.52), Sarcocephalus latifolius (Sm.) E.A. Bruce (RFC = 0.48), Acanthospermum hispidum DC. (RFC = 0.43), and Senna siamea (Lam.) H.S. Irwin and Barneby (RFC = 0.40) Abbreviations Used: RFC: Relative frequency of citation, FC: Frequency of citation, Dec: Decoction, Orl: Oral route, Mac: Maceration, Jui: Juice, Inf: Infusion, Sau: Sauce, Kne: Kneading, Le: Leaves, Rt: Roots, Wp: Whole plant, St: Stem, Stb: Stem bark, Rh: Rhizome, Fr: Fruits, Pf: Plasmodium falciparum, IC50: Concentration of extract killing 50% parasites.
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Affiliation(s)
- Kodjovi Agbodeka
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Holaly E Gbekley
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Simplice D Karou
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo; Centre de Recherche Biomoléculaire Pietro Annigoni, Ouagadougou, Burkina Faso
| | - Kokou Anani
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Amegnona Agbonon
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Tchadjobo Tchacondo
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Komlan Batawila
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Jacques Simpore
- Centre de Recherche Biomoléculaire Pietro Annigoni, Ouagadougou, Burkina Faso
| | - Messanvi Gbeassor
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
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Kantati YT, Kodjo KM, Dogbeavou KS, Vaudry D, Leprince J, Gbeassor M. Ethnopharmacological survey of plant species used in folk medicine against central nervous system disorders in Togo. J Ethnopharmacol 2016; 181:214-220. [PMID: 26869544 DOI: 10.1016/j.jep.2016.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 02/04/2016] [Accepted: 02/06/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Neurological diseases are rising all around the world. In a developing country such as Togo, although plant-based medicines are the only means, still very little is known regarding the nature and efficiency of medicinal plants used by indigenous people to manage central nervous system (CNS) disorders. AIM OF THE STUDY This study, an ethnobotanical survey, aimed to report plant species used in traditional medicine (TM) for the management of various CNS disorders in Togo. MATERIALS AND METHODS 52 traditional actors (TA) including 33 traditional healers (TH) and 19 medicinal plant sellers (MPS) were interviewed, using a questionnaire mentioning informants' general data and uses of medicinal plants. RESULTS The present study reports 44 medicinal plant species distributed into 26 families, mentioning scientific and common local names, plant organs used, preparation method, root of administration and putative applications. CONCLUSION It appears that there is a real knowledge on medicinal plants used for traditional treatment of CNS disorders in Togo and that the local flora abounds of potentially neuroactive plants which could be useful for the discovery of antipsychotic or neuroprotective molecules.
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Affiliation(s)
- Yendube T Kantati
- Laboratory of Physiology/Pharmacology, University of Lomé, Po Box: 1515 Lomé, Togo.
| | - K Magloire Kodjo
- Laboratory of Physiology/Pharmacology, University of Lomé, Po Box: 1515 Lomé, Togo
| | - Koffi S Dogbeavou
- Laboratory of Physiology/Pharmacology, University of Lomé, Po Box: 1515 Lomé, Togo
| | - David Vaudry
- INSERM U982, Neurotrophic Factors and Neuronal Differentiation Team, University of Rouen, Place E. Blondel, 76821 Mont-Saint-Aignan, France
| | - Jérôme Leprince
- INSERM U982, Neurotrophic Factors and Neuronal Differentiation Team, University of Rouen, Place E. Blondel, 76821 Mont-Saint-Aignan, France
| | - Messanvi Gbeassor
- Laboratory of Physiology/Pharmacology, University of Lomé, Po Box: 1515 Lomé, Togo
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Anani K, Adjrah Y, Améyapoh Y, Karou SD, Agbonon A, de Souza C, Gbeassor M. Antimicrobial, Anti-inflammatory and Antioxidant Activities of Jatropha multifida L. (Euphorbiaceae). Pharmacognosy Res 2016; 8:142-6. [PMID: 27034606 PMCID: PMC4780141 DOI: 10.4103/0974-8490.172657] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Jatropha multifida is used in Togolease folk medicine for the healing of chronic wounds. OBJECTIVE This study aims to investigate antibacterial, anti-inflammatory and antioxidant activities of the leaves ethanolic extract. MATERIALS AND METHODS The antimicrobial activity was assayed by National Committee for Clinical Laboratory Standards broth microdilution method on strains of Staphylococcus aureus and Pseudomoas aeruginosa isolated from wounds, whereas the anti-inflammatory activity was performed by carrageenan and histamine induced paw edema method in rat modele. The 2, 2-diphenyl-1picrylhydrazyl (DPPH) free radical scavenging and ferric reducing antioxidant power (FRAP) were used for the antioxidant activity. RESULTS The antibacterial assay showed an in vitro growth inhibition of P. aeruginosa and S. aureus in dose-dependent manner, with minimum inhibitory concentration values ranging from 2.5 to 3.12 mg/mL for S. aureus and from 6.25 to 12.5 mg/mL for P. aeruginosa. The maximum paw anti-inflammatory effect occurred after 3 and 5 h administration of histamine and carrageenan, respectively. The DPPH radical scavenging and the FRAP assays yielded weak antioxidant activity. CONCLUSION J. multifida possesses antibacterial and anti-inflammatory activities that could justify the use of the plant for the treatment of wounds in the folk medicine. SUMMARY Antibacterial on germs isolated from wound, anti-inflammatory and antioxidant activities of Jatropha multifida were assayed by NCCLS broth method, carrageenan and histamine, DPPH and FRAP respectively. The results indicated that Jatropha multifida possesses antibacterial and anti-inflammatory and weak antioxidant activities that could justify its use for the treatment of wounds in the folk medicine.
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Affiliation(s)
- Kokou Anani
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires (LAMICODA), Togo; Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Togo
| | - Yao Adjrah
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires (LAMICODA), Togo; Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Togo
| | - Yaovi Améyapoh
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires (LAMICODA), Togo; Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo
| | - Simplice Damintoti Karou
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires (LAMICODA), Togo; Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Togo
| | - Amegnona Agbonon
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo; Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé, Togo
| | - Comlan de Souza
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires (LAMICODA), Togo; Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo
| | - Messanvi Gbeassor
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Togo; Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences, Université de Lomé, B.P. 1515, Lomé, Togo
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Hoekou YP, Tchacondo T, Karou SD, Koudouvo K, Atakpama W, Pissang P, Gbogbo AK, Woegan AY, Batawila K, Akpagana K, Gbeassor M. Ethnobotanical Study of Latex Plants in the Maritime Region of Togo. Pharmacognosy Res 2016; 8:128-34. [PMID: 27034604 PMCID: PMC4780139 DOI: 10.4103/0974-8490.175613] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background: In Togo, a little is known about latex plants of the flora used for medicinal purposes. Objective: The aim of this study was to identify the latex plant species and their medicinal uses in the Maritime Region of Togo. Materials and Methods: The methodology was based on ethnobotanical semi-structural individual interviews of 220 informants. Quantitative ethnobotanical index was used to analyze the data. Results: A total of 33 latex plants species were recorded, from 12 botanical families and 24 genera. The most represented families were Euphorbiaceae and Moraceae with eight species each. The relative importance (RI) value of each species and the informant consensus factor (ICF) of the ailments categories showed that Pergularia daemia (Forssk.) Chiov. (RI = 2.00) and Euphorbia hirta L. (RI = 1.91) were the most versatile in relation to their uses, and infectious diseases (ICF = 0.922) were the category with the greatest consensus among 17 categories. Conclusion: These latex plants of Togolese flora are variously used in traditional medicine and it would be important to undertake further investigations in phytochemistry, pharmacology, and toxicology to validate their uses. Abbreviations Used: UV: use value ICF: informant consensus factor RI: relative importance PP: pharmacological properties attributed to a species for a specific ailments AC: ailment categories treated by a given species
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Affiliation(s)
- Yao Patrick Hoekou
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo; Laboratoire de Botanique et Ecologie Végétale, Université de Lomé, BP 1515, Lomé, Togo
| | - Tchadjobo Tchacondo
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo
| | - Simplice Damintoti Karou
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo
| | - Koffi Koudouvo
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo
| | - Wouyo Atakpama
- Laboratoire de Botanique et Ecologie Végétale, Université de Lomé, BP 1515, Lomé, Togo
| | - Passimna Pissang
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo
| | - Apeti Koffi Gbogbo
- Laboratoire de Botanique et Ecologie Végétale, Université de Lomé, BP 1515, Lomé, Togo
| | | | - Komlan Batawila
- Laboratoire de Botanique et Ecologie Végétale, Université de Lomé, BP 1515, Lomé, Togo
| | - Koffi Akpagana
- Laboratoire de Botanique et Ecologie Végétale, Université de Lomé, BP 1515, Lomé, Togo
| | - Messanvi Gbeassor
- Centre de Recherche et de Formation Sur Les Plantes Médicinales, Université de Lomé, BP 1515, Lomé, Togo
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Dougnon TJ, Gbeassor M. Evaluation of the effects of the powder of Capsicum frutescens on glycemia in growing rabbits. Vet World 2016; 9:281-6. [PMID: 27057112 PMCID: PMC4823289 DOI: 10.14202/vetworld.2016.281-286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 01/16/2016] [Accepted: 01/25/2016] [Indexed: 01/10/2023] Open
Abstract
AIM The present study aims to evaluate zootechnic parameters and blood sugar in rabbits submitted to diets containing different levels of pepper (Capsicum frutescens). MATERIALS AND METHODS To this end, 30 rabbits weighing on average 1252±35 g at the beginning of the experiment were subjected to five rations with three repetitions for 56 days: The food R0 (or control) which is floury provender contains 0% of C. frutescens; R5, R10, R15, and R20 provender containing, respectively, 0.5%, 1%, 1.5%, and 2% of C. frutescens fruits' powder. Rabbits consumed on average from 75.47 to 80.97 g dry matter. RESULTS Digestibility ranged from 52.39% to 61.01%. The average daily gain and feed consumption index were similar for all diets. Blood glucose was amended by the various servings is 0.98 g/L and 0.88 g/L, respectively, for doses. CONCLUSION It appears from this study that rabbits consumed well diets containing C. frutescens. However, C. frutescens' effect on the growth performances of rabbits is not noticeable. Furthers experiments will be useful to evaluate C. frutescens' mechanism of action on blood sugar.
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Affiliation(s)
- Tossou Jacques Dougnon
- Laboratory of Research in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, 01 BP 2009 Abomey-Calavi, Benin
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Agbodeka K, Gbekley HE, Karou SD, Anani K, Agbonon A, Tchacondo T, Batawila K, Simpore J, Gbeassor M. Ethnobotanical Study of Medicinal Plants Used for the Treatment of Malaria in the Plateau Region, Togo. Pharmacognosy Res 2016. [PMID: 27114686 DOI: 10.4103/0974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND In Togo, malaria constitutes a major public health problem but, until now, the population still mostly relies on herbal medicine for healing. This study aimed to document medicinal plants used for malaria therapy in the Plateau region of the country. METHODOLOGY Semi-structured questionnaire interviews were used to gather ethnobotanical and sociodemographic data from traditional healers of the study area. RESULTS A total of 61 plants species belonging to 33 families were found to be in use for malaria therapy in the Plateau region. Caesalpiniaceae were the most represented family with 7 species, followed by Euphorbiaceae and Poaceae with 4 species each. According to the relative frequency of citation (RFC), Newbouldia laevis Seem. (RFC =0.52), Sarcocephalus latifolius (Sm.) E.A. Bruce (RFC =0.48), Acanthospermum hispidum DC. (RFC =0.43), and Senna siamea (Lam.) H.S. Irwin and Barneby (RFC =0.40) were the most cited in the treatment of malaria in the traditional medicine in the Plateau region. The parts of plants used could either be the barks, roots, leaves, or whole plants. The recipes also could be a combination of various species of plants or plant parts. CONCLUSION This study highlights the potential sources for the development of new antimalarial drugs from indigenous medicinal plants found in the Plateau region of Togo. Such results could be a starting point for in vitro antimalarial screenings. SUMMARY 61 plants species from 33 families are use for malaria therapy in the Plateau region of TogoThe main families are Caesalpiniaceae Euphorbiaceae and PoaceaeThe most used species are Newbouldia laevis Seem. (RFC = 0.52), Sarcocephalus latifolius (Sm.) E.A. Bruce (RFC = 0.48), Acanthospermum hispidum DC. (RFC = 0.43), and Senna siamea (Lam.) H.S. Irwin and Barneby (RFC = 0.40) Abbreviations Used: RFC: Relative frequency of citation, FC: Frequency of citation, Dec: Decoction, Orl: Oral route, Mac: Maceration, Jui: Juice, Inf: Infusion, Sau: Sauce, Kne: Kneading, Le: Leaves, Rt: Roots, Wp: Whole plant, St: Stem, Stb: Stem bark, Rh: Rhizome, Fr: Fruits, Pf: Plasmodium falciparum, IC50: Concentration of extract killing 50% parasites.
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Affiliation(s)
- Kodjovi Agbodeka
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Holaly E Gbekley
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Simplice D Karou
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo; Centre de Recherche Biomoléculaire Pietro Annigoni, Ouagadougou, Burkina Faso
| | - Kokou Anani
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Amegnona Agbonon
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Tchadjobo Tchacondo
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Komlan Batawila
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
| | - Jacques Simpore
- Centre de Recherche Biomoléculaire Pietro Annigoni, Ouagadougou, Burkina Faso
| | - Messanvi Gbeassor
- Centre de recherche et de Formation sur les Plantes Médicinales, Université de Lomé, Togo
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Kpodar MS, Lawson-Evi P, Bakoma B, Eklu-Gadegbeku K, Agbonon A, Aklikokou K, Gbeassor M. Ethnopharmacological survey of plants used in the treatment of diabetes mellitus in south of Togo (Maritime Region). J Herb Med 2015. [DOI: 10.1016/j.hermed.2015.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Anani K, Adjrah Y, Ameyapoh Y, Karou SD, Agbonon A, de Souza C, Gbeassor M. Effects of hydroethanolic extracts of Balanites aegyptiaca (L.) Delile (Balanitaceae) on some resistant pathogens bacteria isolated from wounds. J Ethnopharmacol 2015; 164:16-21. [PMID: 25666430 DOI: 10.1016/j.jep.2015.01.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 01/27/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND The bark of Balanites aegyptiaca (L.) Delile (Balanitaceae) is widely used in the Togolese folk medicine for the treatment of wounds, malaria and skin diseases. This study aimed to evaluate the antioxidant properties and the activity of the bark extract of this plant against some resistant bacteria isolated from wounds. MATERIALS AND METHODS The antimicrobial activity was assayed using the NCCLS microdilution while the DPPH free radical scavenging and ferric reducing antioxidant power (FRAP) were used for the antioxidant activity. The susceptibility to conventional antibiotics of bacteria was assessed by an agar disk diffusion method using commercial disk. Phenolics were quantified using spectrophotometric methods. RESULTS The hydroethanolic extracts of the bark inhibited in vitro the growth of Pseudomonas aeruginosa and Staphylococcus aureus in a dose-dependent manner. Bacteriostatic effects were observed on 15 (33%) and 21 (47%) strains of Staphylococcus aureus and Pseudomonas aeruginosa respectively. The MICs and MBCs against Staphylococcus aureus strains ranged respectively from 2.5 to 12.5 µg/mL and 2.5 to 50 µg/mL. Concerning Pseudomonas aeruginosa, these values were equal (12.5 µg/mL). Multidrug resistance was 95% against six antibiotics for Pseudomonas aeruginosa and 91% against five antibiotics for Staphylococcus aureus. The DPPH radical scavenging and the FRAP assays yielded weak antioxidant activity, closely linked with the total phenolic contents. CONCLUSION This study indicated that the bark extract of Balanites aegyptiaca possess bioactive compounds implicated in the free radical scavenging and antibacterial activities, justifying the use of the plant in the traditional medicines.
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Affiliation(s)
- Kokou Anani
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires - Université de Lomé, B.P. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Lomé,Togo
| | - Yao Adjrah
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires - Université de Lomé, B.P. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Lomé,Togo.
| | - Yaovi Ameyapoh
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires - Université de Lomé, B.P. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Simplice Damintoti Karou
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires - Université de Lomé, B.P. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo; Centre de Recherche en Agriculture Biologique et Substances Naturelles (CRABISNA), Lomé,Togo
| | - Amegnona Agbonon
- Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences - Université de Lomé, BP. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Comlan de Souza
- Laboratoire de Microbiologie et de Contrôle de Qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires - Université de Lomé, B.P. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Messanvi Gbeassor
- Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences - Université de Lomé, BP. 1515 Lomé, Togo; Centre de Formation et de Recherche sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
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Edorh MS, Agbere S, Osei-Safo D, Adam Z, Agbonon A, Karou DS, Agbere RA, Gbeassor M. Toxicological screening of Daouri, a polyherbal formulation used in children in the Central Region of Togo. J Ethnopharmacol 2015; 164:30-34. [PMID: 25666428 DOI: 10.1016/j.jep.2015.01.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/12/2014] [Accepted: 01/14/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Daouri, a combination of several plants, is an old African Traditional Medicine based on ancestral knowledge transmitted from generation to generation and is used by the Kotokoli Community in Togo. The combination of several plants may potentiate or attenuate the toxicity of individual plants. The present investigation aims to study the composition and potential toxicity of Daouri used in children in the Kotokoli community. MATERIALS AND METHODS Surveys were performed using a semi-structured questionnaire to determine the composition of Daouri. On the basis of these data collected, Standard Daouri was formulated, and its aqueous extract was orally administered at 300, 600 and 1200mg/kg to rats for 28 days. On the 29th day, the rats were sacrificed and their serum were analysed to evaluate hepatic and renal toxicities. RESULTS Four categories of Daouri were collected. The plant combinations used in each Daouri formulation varied according to the pathological conditions, including the age of the children and the availability of each plant. The most plants cited in the four Daouri were Khaya senegalensis (Desv.) A. Juss, Odina acida (A. Rich.) Oliv.,Lophira lanceolata Tiegh, Paullinia pinnata L. and Pteleopsis suberosa Engl. & Diels. Although there was an increase in the alkaline phosphatase concentration, different doses of the aqueous extract of Standard Daouri were not toxic after 28 days of administration. In addition, the concentrations of alanine transaminase, creatinine and urea were not different between the Daouri-treated and control groups. CONCLUSION Daouri is plant combination used in children in the Kotokoli community as a part of African Traditional Medicine. Standard Daouri is not toxic in rats.
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Affiliation(s)
- Mawutodji S Edorh
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Sadikou Agbere
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Dorcas Osei-Safo
- Department of Chemistry, University of Ghana, Legon, Accra.P. O. Box LG56, Accra, Ghana
| | - Zakilatou Adam
- Faulté des Sciences de la Santé, Université de Lomé, Togo
| | - Amegnona Agbonon
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo.
| | - Damintoti S Karou
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
| | - Rahamane A Agbere
- Faulté des Sciences de la Santé, Université de Lomé, Togo; Service de Pédiatrie du CHU Sylvanus Olympio, Lomé, Togo
| | - Messanvi Gbeassor
- Centre de Recherche et de Formation sur les Plantes Médicinales (CERFOPLAM), Université de Lomé, Togo
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Diallo A, Eklu-Gadegbeku K, Amegbor K, Agbonon A, Aklikokou K, Creppy E, Gbeassor M. In vivo and in vitro toxicological evaluation of the hydroalcoholic leaf extract of Ageratum conyzoides L. (Asteraceae). J Ethnopharmacol 2014; 155:1214-1218. [PMID: 25048610 DOI: 10.1016/j.jep.2014.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 06/03/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In African traditional medicine, Ageratum conyzoides has been used as purgative, febrifuge, anti-ulcer and wound dressing. To date there is no safety information about long term use of Ageratum conyzoides which contains pyrrolizidine alkaloids, a class of hepatotoxic and carcinogenic phytochemicals. This study aims to evaluate the 90 days subchronic toxicity and in vitro toxicity of Ageratum conyzoides. MATERIALS AND METHODS Three groups of 8 rats (4 males and 4 females) received distilled water (control), 500 and 1000 mg/kg of the extract daily for 90 consecutive days by oral gavage. The animals were observed daily for abnormal clinical signs and death. Body weight, relative organ weight, haematological and biochemical parameters of blood as well as heart, kidney, liver and spleen tissues histology were evaluated. RESULTS After 90 days administration, Ageratum conyzoides increased significantly (p<0.05) the relative weight of the liver, the spleen and kidney as compared to control group. Ageratum conyzoides increased also significantly (p<0.05) ALP, ALT, AST and blood glucose. Furthermore, an increase in the number of platelets associated with a normocytic and normochromic anaemia was observed. The cytotoxicity, determined by the MTT test and neutral red assay, has shown that the cytotoxicity of hydroalcoholic extract of Ageratum conyzoides and its total alkaloids was very close. CONCLUSIONS Our results have shown that Ageratum conyzoides at 500 and 1000 mg/kg can induce liver, kidney and haematological disorders. These toxics effects can be attributed to its total alkaloids especially to pyrrolizidine alkaloids which are present in this plant.
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Affiliation(s)
- Aboudoulatif Diallo
- Department of Toxicology, Faculty of Health Sciences, University of Lome, P.O. Box 216 Lomé 05, Lomé, Togo.
| | | | - Koffi Amegbor
- Department of Anatomical-Pathology, Faculty of Health Sciences, University of Lome, Togo
| | - Amegnona Agbonon
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
| | - Kodjo Aklikokou
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
| | - Edmond Creppy
- Department of Toxicology, Laboratory of Toxicology and Applied Hygiene, University Bordeaux 2, Bordeaux, France
| | - Messanvi Gbeassor
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
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Adambounou K, Adjenou V, Salam AP, Farin F, N'Dakena KG, Gbeassor M, Arbeille P. A low-cost tele-imaging platform for developing countries. Front Public Health 2014; 2:135. [PMID: 25250306 PMCID: PMC4155785 DOI: 10.3389/fpubh.2014.00135] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 08/20/2014] [Indexed: 11/13/2022] Open
Abstract
PURPOSE To design a "low-cost" tele-imaging method allowing real-time tele-ultrasound expertise, delayed tele-ultrasound diagnosis, and tele-radiology between remote peripherals hospitals and clinics (patient centers) and university hospital centers (expert center). MATERIALS AND METHODS A system of communication via internet (IP camera and remote access software) enabling transfer of ultrasound videos and images between two centers allows a real-time tele-radiology expertise in the presence of a junior sonographer or radiologist at the patient center. In the absence of a sonographer or radiologist at the patient center, a 3D reconstruction program allows a delayed tele-ultrasound diagnosis with images acquired by a lay operator (e.g., midwife, nurse, technician). The system was tested both with high and low bandwidth. The system can further accommodate non-ultrasound tele-radiology (conventional radiography, mammography, and computer tomography for example). The system was tested on 50 patients between CHR Tsevie in Togo (40 km from Lomé-Togo and 4500 km from Tours-France) and CHU Campus at Lomé and CHU Trousseau in Tours. RESULTS A real-time tele-expertise was successfully performed with a delay of approximately 1.5 s with an internet bandwidth of around 1 Mbps (IP Camera) and 512 kbps (remote access software). A delayed tele-ultrasound diagnosis was also performed with satisfactory results. The transmission of radiological images from the patient center to the expert center was of adequate quality. Delayed tele-ultrasound and tele-radiology was possible even in the presence of a low-bandwidth internet connection. CONCLUSION This tele-imaging method, requiring nothing by readily available and inexpensive technology and equipment, offers a major opportunity for telemedicine in developing countries.
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Affiliation(s)
- Kokou Adambounou
- Unité de Télémédecine du Centre Hospitalier Universitaire Campus, Université de Lomé , Lomé , Togo ; Unité de Médecine et Physiologie Spatiales (UMPS-CERCOM), Centre Hospitalier Universitaire Trousseau de Tours , Tours , France
| | - Victor Adjenou
- Unité de Télémédecine du Centre Hospitalier Universitaire Campus, Université de Lomé , Lomé , Togo
| | | | - Fabien Farin
- Unité de Médecine et Physiologie Spatiales (UMPS-CERCOM), Centre Hospitalier Universitaire Trousseau de Tours , Tours , France
| | - Koffi Gilbert N'Dakena
- Unité de Télémédecine du Centre Hospitalier Universitaire Campus, Université de Lomé , Lomé , Togo
| | - Messanvi Gbeassor
- Unité de Télémédecine du Centre Hospitalier Universitaire Campus, Université de Lomé , Lomé , Togo
| | - Philippe Arbeille
- Unité de Médecine et Physiologie Spatiales (UMPS-CERCOM), Centre Hospitalier Universitaire Trousseau de Tours , Tours , France
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Bakoma B, Berké B, Eklu-Gadegbeku K, Agbonon A, Aklikokou K, Gbeassor M, Moore N. Effect of Bridelia ferruginea Benth (Euphorbiaceae) ethyl acetate and acetone fractions on insulin resistance in fructose drinking mice. J Ethnopharmacol 2014; 153:896-899. [PMID: 24704594 DOI: 10.1016/j.jep.2014.03.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 02/18/2014] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The root of Bridelia ferruginea is traditionally used as a treatment for type 2 diabetes. The present study was investigated to evaluate the effect of Bridelia ferruginea root bark fractions on some markers of type 2 diabetes on fructose drinking mice. MATERIALS AND METHODS Mice received a solution of fructose 15% during 42 days ad libitum; at the 15th day to the 42nd day, they received distilled water for fructose drinking control group, metformin 50 mg/kg per day or fractions 50 mg/kg per day for treatment groups. The normal control group received only distilled water during the experiment. After 6 weeks of experiment, OGTT, fasting blood glucose, plasma insulin, triglycerides (TG), total cholesterol, AST and ALT levels were measured. RESULTS Fructose drinking control group (F) showed significant (p<0.001) increase of glucose tolerance, plasma levels of total cholesterol, triglycerides and insulin index for insulin resistance (Homeostasis Model Assessment ratio HOMA-IR) as compared to normal control mice. In treated groups, there was a significant reduction of glucose intolerance respectively 74% (p<0.001), 25% (p<0.5) and 92% (p<0.001) for ethyl acetate fraction, acetone fraction and metformin at the same dose of 50 mg/kg per day during 4 weeks administration. In ethyl acetate fraction and metformin treated groups, biochemical parameters and insulin index were significantly (p<0.001) lower than that of fructose drinking control group. CONCLUSIONS This indicates that Bridelia ferruginea root bark ethyl acetate fraction improved insulin resistance as metformin significantly in type 2 diabetes.
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Affiliation(s)
- Batomayena Bakoma
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo; Department of Pharmacology, University of Bordeaux Segalen, 33076 Bordeaux, France.
| | - Bénédicte Berké
- Department of Pharmacology, University of Bordeaux Segalen, 33076 Bordeaux, France
| | | | - Amegnona Agbonon
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
| | - Kodjo Aklikokou
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
| | - Messanvi Gbeassor
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Togo
| | - Nicholas Moore
- Department of Pharmacology, University of Bordeaux Segalen, 33076 Bordeaux, France
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Tessou KZ, Lawson-Evi P, Metowogo K, Diallo A, Eklu-Gadegkeku K, Aklikokou K, Gbeassor M. Acute and Sub-Acute Toxicity Studies of Plumeria alba Linn. (Apocynaceae) Hydroalcoholic Extract in Rat. Int J Biomed Sci 2013; 9:255-9. [PMID: 24711763 PMCID: PMC3884797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/09/2013] [Indexed: 11/03/2022]
Abstract
Plumeria alba Linn (Apocynaceae) is used in Togolese traditional medicine to treat diabetes mellitus and wounds. The present investigation was carried out to evaluate the toxicity of hydroalcoholic extract of Plumeria alba roots in Sprague Dawley rats. The acute toxicity test was conducted by administering orally dose of 5 g/Kg. General behavior and mortality were examined for up to 14 days. The sub-acute toxicity test was performed by daily gavage at 250, 500 and 1000 mg/Kg for 28 days. Body weight and blood glucose were measured weekly. Hematological and biochemical parameters, relative organ weight were determined at the end of the 28 days administration. In acute study, no adverse effect of the extract was observed at 5.0 g/Kg. Sub-acute oral administration of the extract at the dose up to 1000 mg/Kg did not induce death or significant changes in body weight, relative weight of vital organs, hematological parameters and was not associated with liver and kidney toxicity.
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Tona K, Everaert N, Willemsen H, Gbeassor M, Decuypere E, Buyse J. Effects of interaction of incubator CO2levels and mixing hatching eggs of different embryo growth trajectory on embryo physiological and hatching parameters. Br Poult Sci 2013; 54:545-51. [DOI: 10.1080/00071668.2013.807907] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Teteh A, Lawson E, Tona K, Decuypere E, Gbeassor M. Moringa Oleifera Leave: Hydro-Alcoholic Extract and Effects on Growth Performance of Broilers. ACTA ACUST UNITED AC 2013. [DOI: 10.3923/ijps.2013.401.405] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Adambounou K, Farin F, Adjenou V, N’dakena K, Gbeassor M, Tossou A, Akohin L, Decker K, Arbeille P. Plateforme de télémédecine moindre coût pour les pays en développement. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.eurtel.2013.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tete-Benissan A, Quashie MLA, Lawson-Evi K, Gnandi K, Kokou K, Gbeassor M. Influence of Moringa oleifera leaves on atherogenic lipids and glycaemia evolution in HIV-infected and uninfected malnourished patients. ACTA ACUST UNITED AC 2013. [DOI: 10.4314/jab.v62i0.86072] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Adjrah Y, Dovlo A, Karou SD, Eklu-Gadegbeku K, Agbonon A, de Souza C, Gbeassor M. Survey of pesticide application on vegetables in the Littoral area of Togo. Ann Agric Environ Med 2013; 20:715-720. [PMID: 24364441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Vegetable production in Togo is seriously affected by pests attack. To reduce damage, farmers indiscriminately use pesticides. Various studies have reported high concentrations of pesticide residues more than acceptable limits in vegetables and other edible food. The aim of the presented study is to study the attitudes and practices developed by vegetable growers about pesticides applications. A standardized questionnaires which included socio-professional factors, provisions and operations concerning the use of varieties of pesticides were addressed to 150 growers in vegetable farms along the Littoral of Togo. In order to complete data concerning pesticides, seven runoff private companies and agents of the 'Direction de la Protection des Végétaux' were interviewed. Data were statistical treated using Sphinx Plus. The survey showed that vegetable growers have an acceptable educational level (36% have more than 7 years of formal education) to exploit instructions concerning pesticide use, but more than 97% do not use recommended tools. Only 21% of them received training for pesticide use. Moreover, 84% of them did not usually wear gloves, and less than 30% used oro-nasal masks. Failure to observe minimum intervals between pesticide application and sale is worrying because extremely hazardous (Carbofuran and Cadusaphos) or moderately toxic (Cypermethrin, Dimethoate, Endosulfan, Chlorpyrifos-ethyl, Fipronil) are the products currently used. The presented study indicates that pesticides application in the survey area represents a potential risk for the environment, farmers and consumers. More investigations are needed to quantify pesticides residues on the vegetables currently con,umed and moreover, to determine the potential effect of those products on human and animals health.
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Affiliation(s)
- Yao Adjrah
- Laboratoire de Microbiologie et de Contrôle de qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires (ESTBA), Université de Lomé, Lomé - Togo
| | - Agbéko Dovlo
- Société phytopharmaceutique mega recoltes, Lomé - Togo
| | - Simplice D Karou
- Laboratoire de Microbiologie et de Contrôle de qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires (ESTBA), Université de Lomé, Lomé - Togo
| | - Kwashie Eklu-Gadegbeku
- Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences, Université de Lomé, Lomé - Togo
| | - Amégnona Agbonon
- Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences, Université de Lomé, Lomé - Togo
| | - Comlan de Souza
- Laboratoire de Microbiologie et de Contrôle de qualité des Denrées Alimentaires, Ecole Supérieure des Techniques Biologiques et Alimentaires (ESTBA), Université de Lomé, Lomé - Togo
| | - Messanvi Gbeassor
- Laboratoire de Physiologie et de Pharmacologie, Faculté des Sciences, Université de Lomé, Lomé - Togo
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Bakoma B, Berké B, Eklu-Gadegbeku K, Agbonon A, Aklikokou K, Gbeassor M, Creppy EE, Moore N. Acute and sub-chronic (28days) oral toxicity evaluation of hydroethanolic extract of Bridelia ferruginea Benth root bark in male rodent animals. Food Chem Toxicol 2012. [PMID: 23201452 DOI: 10.1016/j.fct.2012.11.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The present investigation was carried out to evaluate the safety of hydro-ethanol extract of Bridelia ferruginea Benth (Euphorbiaceae) root bark. For acute toxicity study, a single dose of 2000 and 5000 mg/kg of the B. ferruginea root bark extract was given orally to healthy male Wistar rats and Balb/c mice. The animals were observed for mortality and clinical signs for 3 h and then daily for 14 days. In the sub-chronic toxicity study, the extract was administered orally at doses of 250, 500 and 1000 mg/kg/day for 28 days to male Wistar rats. Animals were sacrificed to examine their organs, and urine and blood serum were analyzed. In the acute toxicity study, B. ferruginea root bark extract caused neither significant visible signs of toxicity, nor mortality in Wistar rats and Balb/c mice. In sub-chronic toxicity study, administration of the B. ferruginea root bark extract at 250, 500, and 1000 mg/kg for 28 consecutive days to Wistar rats did not produce mortality. No significant differences were found in relative organ weights, biochemical studied parameters in treated groups compared to control group. No obvious histological changes were observed in organs of B. ferruginea extract treated animals compared to controls.
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Affiliation(s)
- Batomayena Bakoma
- Department of Animal Physiology, Faculty of Sciences, University of Lome, Lome, Togo.
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Atakpama W, Batawila K, Dourma M, Pereki H, Wala K, Dimobe K, Akpagana K, Gbeassor M. Ethnobotanical Knowledge of Sterculia setigera Del. in the Sudanian Zone of Togo (West Africa). ACTA ACUST UNITED AC 2012. [DOI: 10.5402/2012/723157] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ethnobotanical knowledge is useful in development of management and conservation of plant genetic resources. In this study, ethnobotanical investigations were conducted in Sudanian zone of Togo to identify use values knowledge of Sterculia setigera tree. Information was obtained with the aid of semistructured interviews. Three (3) ethnic groups: Bassar, Moba, and Konkomba belonging to ten (10) localities were investigated. Use knowledge of Sterculia setigera through these ethnic groups was assessed using four use indices: reported use (RU), plant part value (PPV), specific reported use (SU), and intraspecific use value (IUV). Sixty (60) informants of 43 years old were interviewed. The plant parts values and specific uses are raised more in the Moba's ethnic group. The main quoted uses are medicinal, religious, food, and cosmetic. Thus, fourteen (14) treatments of ailments are assigned to it. Considering the various uses, it is crucial to validate scientifically the therapeutic uses and safety of these plants through phytochemical screening, different biological activity tests, and toxicological studies.
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Affiliation(s)
- Wouyo Atakpama
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Komlan Batawila
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Marra Dourma
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Hodabalo Pereki
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Kpérkouma Wala
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Kangbéni Dimobe
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Koffi Akpagana
- Laboratory of Botany and Plant Ecology, Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
| | - Messanvi Gbeassor
- Laboratory of Pharmacology/Physiology Faculty of Sciences, University of Lomé, P.O. Box 1515, Lome, Togo
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Amegbor K, Metowogo K, Eklu-Gadegbeku K, Agbonon A, Aklikokou KA, Napo-Koura G, Gbeassor M. Preliminary evaluation of the wound healing effect of Vitex doniana sweet (Verbenaceae) in mice. Afr J Tradit Complement Altern Med 2012; 9:584-90. [PMID: 23983395 PMCID: PMC3746653 DOI: 10.4314/ajtcam.v9i4.16] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Vitex doniana is traditionally used in Togo to treat various diseases including wounds. The aim of this work was to evaluate the efficiency of Vitex doniana on cutaneous wound healing. Wounds were induced in ICR mice divided into four groups as following: Group I received carbopol 974P NF empty gel, Groups II and III were treated topically with carbopol gel containing 2.5% and 5% of Vitex doniana extract. Group IV received Betadine® 10% as standard drug. The efficacy of treatment was evaluated by planimetry and histological analysis. We secondary used the gel containing Vitex doniana at 2.5% and the pure extract at 10 mg/ml on the model of ear edema induced by xylene. Skin toxicity test was performed with the gel containing Vitex doniana at 5% and the pure extract at 30 mg/ml. Vitex doniana at 5% and 2.5% provided better wound contraction (91.14% and 86.38%) at day 12 post-excision when compared to control (51.15%). The results of histological evaluation supported the outcome of excision wound model. Moreover Vitex doniana inhibited significantly edema induced by xylene when compared to control (p< 0.05). In skin toxicity test, no abnormal symptoms were developed over 14 day-time period. Vitex doniana inhibits the topical inflammation and accelerate cutaneous wound repair.
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Affiliation(s)
- K Amegbor
- Laboratoire d'Anatomie et Cytologie Pathologiques, Faculté Mixte de Médecine et de Pharmacie, Université de Lomé, Togo
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Adambounou K, Farin F, Boucher A, Adjenou KV, Gbeassor M, N'dakena K, Vincent N, Arbeille P. Preliminary experience with tele-sonography and tele-mammography in Togo. Diagn Interv Imaging 2012; 93:639-42. [PMID: 22683232 DOI: 10.1016/j.diii.2012.03.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Many medical centres are equipped with a sonograph. However, a sonographist is not always present or is not trained in all of the specialised domains of sonography. . A sonogram is not always possible due to a lack of physicians. This situation has given rise to the concept of remote-controlled sonography: tele-sonography, a medical procedure used in remote sonographic diagnosis in real time or deferred time. Tele-sonography can now be carried out in real time by the transmission of the expert's procedure (robotic system) or by the use of a 3D sonograph in real time. These modes of real time tele-sonography rely on expensive technologies requiring budgets and an infrastructure that is not always possible in developing countries where the needs in tele-medicine are increasing. This paper aimed to present a preliminary evaluation of a "low cost" system of sonographic tele-expertise in real time and the deferred sonographic telediagnosis accompanied by a tele-mammography between expert sites (university hospitals) and isolated sites (peripheral hospitals, dispensaries).
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Affiliation(s)
- K Adambounou
- UMPS-CERCOM, service de médecine nucléaire et ultrasons, CHU Trousseau, avenue de la République à Chambray-les-Tours, Tours cedex 9, France.
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Bakoma B, Berke B, Eklu-Gadeg K, Diallo A, Agbonon A, Aklikokou K, Gbeassor M, Moore N. Total Phenolic Content, Antioxidant Activity and in vitro Inhibitory Potential against Key Enzymes Relevant for Hyperglycemia of Bridelia ferruginea Extracts. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/rjphyto.2012.120.126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ognatan K, Adi K, Lamboni C, Damorou JM, Aklikokou KA, Gbeassor M, Guilland JC. Effect of Dietary Intake of Fermented Seeds of Parkia biglobosa (Jacq) Benth (African Locust Bean) on Hypertension in Bogou and Goumou-kope Areas of Togo. TROP J PHARM RES 2011. [DOI: 10.4314/tjpr.v10i5.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Tete-Benissan A, Gbeassor M. Phénotypes de l’alpha-1-antitrypsine dans la population togolaise : mise en évidence d’une fréquence élevée de l’allèle rare PiF dans une ethnie isolat. ACTA ACUST UNITED AC 2011; 59:269-74. [DOI: 10.1016/j.patbio.2009.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 10/13/2009] [Indexed: 01/15/2023]
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Kagone TS, Hien H, Meda N, Diagbouga PS, Sawadogo A, Drabo J, Peeters M, Vergne L, Delaporte E, De Souza C, Gbeassor M, Simpore J. Characterization of HIV-1 genotypes and antiretroviral drug-resistance mutations among patients in Burkina Faso. Pak J Biol Sci 2011; 14:392-8. [PMID: 21902063 DOI: 10.3923/pjbs.2011.392.398] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The purposes of this study were: (1) to describe the genetic variability of HIV strains found in Burkina Faso, (2) to characterize non-B HIV strains mutation profiles selected by ARVs and (3) to detect possible resistances induced by ARV drugs. From 30 October 2002 to 20 November 2003, 132 HIV 1-positive patients taking Highly Active Antiretroviral Therapy (HAART) for more than one year in Bobo-Dioulasso and Ouagadougou were included. T-CD4+ lymphocytes count was done using Dynabeads technique while genotypic test and ARV-resistance tests were conducted using Pol sequencing that codes for reverse transcriptase reverse, integrase and protease. Due to undetectable viremia, 86 samples out of 132 could not be characterized. Whereas in the 46 others that had a viral load exceeding 1000 copies mL(-1), the following HIV-1 subtypes were identified: CRF06 (54,55%); CRF02(38,63%); CRF01 (4,55%) and subtype A (2,27%). In addition, several mutations related to PI, NRTI and NNRTI resistance were isolated in 27 samples. This study found a huge genetic HIV-1 polymorphism in Burkina Faso. The level of acquired resistance to ARV after one year of treatment amounted 20.4%. These results clearly show that there is imperative need to set up an ARV resistance surveillance network in Burkina Faso to guide treatment strategies and follow the extension of the phenomenon in the country.
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Affiliation(s)
- T S Kagone
- Centre MURAZ Bobo-Dioulasso, Burkina Faso
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Missebukpo A, Metowogo K, Agbonon A, Eklu-Gadeg K, Aklikokou K, Gbeassor M. Evaluation of Anti-asthmatic Activities of Ixora coccinea Linn (Rubiaceae). ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jpt.2011.559.570] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lawson-Evi P, Eklu-Gadeg K, Agbonon A, Aklikokou K, Creppy E, Gbeassor M. Antidiabetic Activity of Phyllanthus amarus Schum and Thonn (Euphorbiaceae) on Alloxan Induced Diabetes in Male Wistar Rats. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jas.2011.2968.2973] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kpegba K, Agbonon A, Petrovic AG, Amouzou E, Gbeassor M, Proni G, Nesnas N. Epiafzelechin from the root bark of Cassia sieberiana: detection by DART mass spectrometry, spectroscopic characterization, and antioxidant properties. J Nat Prod 2011; 74:455-459. [PMID: 21070009 DOI: 10.1021/np100090e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The root bark of Cassia sieberiana was analyzed using direct analysis in real time mass spectrometry, and a main flavonoid component with an [M + H](+) mass of 275 was identified. The flavonoid, epiafzelechin, was isolated and fully characterized with the concerted use of NMR spectroscopy, circular dichroism, and optical rotation. Electronic circular dichroism and optical rotation TDDFT calculations were also performed, and their agreement with the experimental results confirmed the enantiomeric identity of the isolated natural product. The antioxidant activity of the compound was also investigated.
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Affiliation(s)
- Kafui Kpegba
- Bioorganic Laboratory, Department of Chemistry, Florida Institute of Technology, Melbourne, Florida 32901, United States
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Koudouvo K, Karou DS, Kokou K, Essien K, Aklikokou K, Glitho IA, Simpore J, Sanogo R, De Souza C, Gbeassor M. An ethnobotanical study of antimalarial plants in Togo Maritime Region. J Ethnopharmacol 2011; 134:183-90. [PMID: 21167269 DOI: 10.1016/j.jep.2010.12.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 11/15/2010] [Accepted: 12/05/2010] [Indexed: 05/21/2023]
Abstract
BACKGROUND Malaria continues to be of great concern in Togo, as it accounts for high mortality rates, principally in children. Although plant-based medicines are the only means in major malarious regions of the country, still very little is known about the medicinal plants and medical practices of the indigenous people. OBJECTIVE The present study aimed to document the indigenous medicinal plant utilization for the management of malaria and related symptoms in Togo Maritime Region. METHODOLOGY Fifty Traditional Healers (TH) were selected with the help leaders of Togolese Traditional Healers Associations and information on their knowledge on the use of plants for malaria therapeutic purposes was gathered using a semi-structured interviews. RESULTS After enquiries, 52 plant species belonging to 49 genera and 29 families were recorded. The most represented families were Rubiaceae and Rutaceae with four species each. Traditional healers agreed more in the treatment of malaria (ICF=0.70), fever (ICF=0.33) and anemia (ICF=0.20). For the treatment of malaria, 38.46% (20/52) of the species cited in the study were of high fidelity level (FL=100%). The leaves (58.22%), leafy stem (33.78%) and fruits (8.52%) were the most used parts in concoctions. The main mode of preparation was decoction (69%) and the administration was essentially by oral route (79%) and body-bath (14%). CONCLUSION The issue of the study showed that Togo Maritime Region TH have a good knowledge of antimalarial plants. However the study must be extend to the whole country to lead to innovative strategies in malaria control. Such results could be a starting point for in vitro antimalarial screenings.
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Affiliation(s)
- K Koudouvo
- Centre de Recherche et de Formation sur les Plantes médicinales (CERFOPLAM), Université de Lomé, Togo
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Metowogo K, Eklu-Gadegbeku K, Agbonon A, A. Aklikokou K, Gbeassor M. Gastroprotective Effect of Hydroalcoholic Extract of Aloe buettneri. Iran J Pharm Res 2011; 10:69-74. [PMID: 24363683 PMCID: PMC3869586] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aloe buettneri A. Berger is commonly used in traditional Togolese medicine to treat inflammatory and gastric ulcers. The present study examined the gastro-protection effect of the hydro-alcoholic extract of A. buettneri on mucus production and gastric pH. A gastric ulcer is induced by ethanol 95° alone (1 mL/kg body weight), after pre-treatment with indomethacin (300 mg/kg) or by utilising L-NAME (40 mg/kg IV). In addition gastric mucus was removed by scraping and subsequently weighed. The experiment focused entirely on rats that had been subjected to fasting. The hydro-alcoholic extract of A. buettneri (500 mg/kg) significantly inhibited ulcers that were induced by ethanol, indomethacin or L-NAME pre-treatment. A. buettneri was shown to increase the production of gastric mucus. Furthermore L-arginine significantly decreased the size of the induced ulcers. The results achieved in the study carried out suggest that A. buettneri posses gastro-protective properties.
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Diallo A, Eklu-Gadegkeku K, Agbono A, Aklikokou K, Creppy EE, Gbeassor M. Acute and Sub-chronic (28-day) Oral Toxicity Studies of Hydroalcohol Leaf Extract of Ageratum conyzoides L (Asteraceae). TROP J PHARM RES 2010. [DOI: 10.4314/tjpr.v9i5.61059] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Diallo A, Eklu-Gadeg K, Agbonon A, Aklikokou K, Creppy E, Gbeassor M. Acute and Subchronic (28-Day) Oral Toxicity Studies of Hydroalcoholic Extract of Lannea kerstingii Engl. And K. Krause (Anacardiaceae) Stem Bark. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/jpt.2010.343.349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gaglo-Disse A, Tona K, Aliou S, Debonne M, Aklikokou K, Gbeassor M, Decuypere E. Effect of delayed feed access on production and blood parameters of layer-type chicks. Acta Vet Hung 2010; 58:211-9. [PMID: 20460220 DOI: 10.1556/avet.58.2010.2.7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A total of 684 Hisex Brown day-old chicks were studied. The chicks were randomly assigned into three groups as follows: (1) chicks with immediate feed access; (2) chicks with 48 h delay in feed access, and (3) chicks with 72 h delay in feed access. For each group, chicks were assigned into 4 replications of 57 birds each. Prior to feed access, the chicks were weighed. Samples of chicks were used to weigh yolk sac at 1, 3 and 7 days and to collect blood at 1, 3, 7, 14 and 56 days. Also, reared chicks were weighed weekly. The results indicated that chick weights decreased during the holding period. Yolk sac utilisation was similar between groups, while morbidity and mortality increased linearly with the duration of delay in feed access. At 56 days, chicks having delayed access to feed were lighter than those without delay in feed access. Serum concentration of glucose up to 14 days and of total protein and triglycerides until 56 days decreased with the increasing duration of delay in feed access. It can be concluded that delayed feed access is detrimental to the juvenile performance of layer-type chicks and has a negative age-related effect on the serum concentrations of glucose, triglycerides and total protein.
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Affiliation(s)
- Adjovi Gaglo-Disse
- 1 University of Lome Laboratory of Poultry Sciences, Faculty of Sciences B. P. 1515 Lome Togo
| | - Kokou Tona
- 1 University of Lome Laboratory of Poultry Sciences, Faculty of Sciences B. P. 1515 Lome Togo
| | | | - Marian Debonne
- 2 University of Lome Laboratory of Pharmacology of Natural Substances, Faculty of Sciences Lome Togo
| | - Kodjo Aklikokou
- 2 University of Lome Laboratory of Pharmacology of Natural Substances, Faculty of Sciences Lome Togo
| | - Messanvi Gbeassor
- 1 University of Lome Laboratory of Poultry Sciences, Faculty of Sciences B. P. 1515 Lome Togo
| | - Eddy Decuypere
- 3 Department of Biosystems Laboratory for Physiology and Immunology of Domestic Animals K. U. Leuven Belgium
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Karou SD, Nadembega MCW, Zeba B, Ilboudo DP, Ouermi D, Pignatelli S, Pietra V, Gbeassor M, De Souza C, Simpore J. [Evolution of antibiotic-resistance Staphylococcus aureus in Saint Camille Medical Centre in Ouagadougou]. Med Trop (Mars) 2010; 70:241-244. [PMID: 20734590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Monitoring the antibiotic resistance of microorganisms in a specific geographic area can be useful in developing new approaches to first-intention antibiotherapy. OBJECTIVE The purpose of this study was to describe the evolution of resistance of Staphylococcus aureus to antibiotics routinely used at Saint Camille Medical Centre in Ouagadougou, Burkina Faso from 1996 to 2006. METHOD Strains of S. aureus, isolated from various pathologic sources were tested to determine their susceptibility to antibiotics. Sensitivity tests were performed in accordance with the guidelines of the Antibiogram Committee of the French Society for Microbiology (version 2007). RESULTS During the study period, 1160 staphylococci strains were isolated including 73.45% identified as S. aureus. Susceptibility tests demonstrated a significant increase in resistance to beta-lactam antibiotics. The proportion of strains showing resistance to ampicillin reached 58.29% in 2000. Resistance to these antibiotics regressed significantly from 2000 to 2006. Resistance to pristinamycin and erythromycin showed a tendency to increase while resistance to gentamicin and oleandomycin showed no statistically significant change. CONCLUSION This study demonstrated that S. aureus was the most common Staphylococcus genus present at the center and that it was resistant to several antibiotics. Reducing use of beta-lactam probably accounted for the significant decline in resistance to this type of antibiotic. Care should also be given to the use of other antibiotics such as pristinamycin and erythromycin since resistance appears to be increasing.
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Affiliation(s)
- S D Karou
- Centre de Recherche Biomoléculaire Pietro Annigoni (CERBA), Ouagadougou, Burkina Faso.
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Agbonon A, Eklu-Gadegbeku K, Aklikokou K, Gbeassor M, Akpagana K, Tam TW, Arnason JT, Foster BC. In vitro inhibitory effect of West African medicinal and food plants on human cytochrome P450 3A subfamily. J Ethnopharmacol 2010; 128:390-394. [PMID: 20109542 DOI: 10.1016/j.jep.2010.01.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 01/12/2010] [Accepted: 01/12/2010] [Indexed: 05/28/2023]
Abstract
AIM OF THE STUDY In Africa, medicinal plants are used intensively and concomitantly with allopathic medicines in the treatment of opportunity diseases by many patients or by healthy person to prevent diseases. However, there is little information about the interactions between medicines and botanical products used currently in West Africa area. Therefore, the aim of the present investigation is to study the effect of some plant products on CYP3A4, CYP3A5 and CYP3A7, three individual enzymes of CYP3A subfamily, in vitro. MATERIALS AND METHODS Teas and ethanolic extracts of medicinal, food and co-administered plants were evaluated on CYP3A4, CYP3A5 and CYP3A7 individual enzymes in vitro using fluorometric assays. RESULTS Extracts of adjuvant plants such as Aframomum cuspidatum, and Aframomum melegueta, as well as one medicinal plant (Harrisonia abyssinica) inhibited CYP3A4, CYP3A5 and CYP3A7 activity more than 90%. Phyllanthus amarus showed high inhibition of CYP3A5 and CYP3A7. Food plants (Solanum macrocarpon and Talinum triangulare) inhibited CYP3A4 and CYP3A5 less than 20%. CONCLUSION These results indicate that plants tested in this study affect in vitro the activity of the main three CYP3A subfamily enzymes. These active plants could interfere with the metabolism at phase I of conventional drugs in vivo as well act as pharmacoenhancers in herbal mixtures.
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Affiliation(s)
- Amegnona Agbonon
- Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Ontario, Canada
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Diallo A, Eklu-Gadeg K, Mobio T, Moukha S, Agbonon A, Aklikokou K, Creppy E, Gbeassor M. Protective Effect of Moringa oleifera Lam. and Lannea kerstingii Extracts Against Cadmium and Ethanol-induced Lipid Peroxidation. ACTA ACUST UNITED AC 2009. [DOI: 10.3923/jpt.2009.160.166] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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