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Amin DH, Sayed HAE, Elissawy AM, EL-Ghwas DE, Singab ANB. Antimicrobial Profile of Actinomycin D Analogs Secreted by Egyptian Desert Streptomyces sp. DH7. Antibiotics (Basel) 2021; 10:antibiotics10101264. [PMID: 34680844 PMCID: PMC8532959 DOI: 10.3390/antibiotics10101264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/18/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022] Open
Abstract
Egyptian deserts are an underexplored ecological niche, especially the Sinai Peninsula. In our recent study, we explored this extreme environment and shed light on the bioactive capabilities of desert Actinobacteria isolated from Sinai. Fifty desert Actinobacteria were isolated from the Sinai desert using mineral salt media, basal media, and starch casein media. The filtrate of Streptomyces sp. DH 7 displayed a high inhibitory effect against multidrug-resistant Staphylococcus aureus (MRSA) strains. The 16S rDNA sequencing confirmed that isolate DH7 belongs to the genus Streptomyces. The NJ phylogenetic tree showed relatedness to the Streptomyces flavofuscus strain NRRL B-2594 and Streptomyces pratensis strain ch24. The minimum inhibitory concentrations against MRSA were 16 and 32 μg/μL. Chemical investigation of the ethyl acetate extract of Streptomyces sp. DH7 led to the isolation and purification of natural products 1-4. Structure elucidation of the purified compounds was performed using detailed spectroscopic analysis including 1 and 2D NMR, and ESI-MS spectrometry. To the best of our knowledge, this is the first report for the isolation of compounds 1-4 from a natural source, while synthetic analogs were previously reported in the literature. Compounds 3-4 were identified as actinomycin D analogues and this is the first report for the production of actinomycin D analogs from the Sinai desert with an inhibitory effect against MRSA. We indorse further study for this analog that can develop enhanced antimicrobial activities. We confirm that the desert ecosystems in Egypt are rich sources of antibiotic-producing Actinobacteria.
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Affiliation(s)
- Dina H. Amin
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt;
- Correspondence:
| | - Hayam A. E. Sayed
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt;
| | - Ahmed M. Elissawy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; (A.M.E.); (A.N.B.S.)
- Center of Drug Discovery Research and Development, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Dina E. EL-Ghwas
- Pharmaceutical Industries Researches Division, Department of Chemistry of Natural and Microbial Products, National Research Centre, Giza 12622, Egypt;
| | - Abdel Nasser B. Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; (A.M.E.); (A.N.B.S.)
- Center of Drug Discovery Research and Development, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
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Moffo F, Mouiche MMM, Djomgang HK, Tombe P, Wade A, Kochivi FL, Dongmo JB, Mbah CK, Mapiefou NP, Ngogang MP, Awah-Ndukum J. Poultry Litter Contamination by Escherichia coli Resistant to Critically Important Antimicrobials for Human and Animal Use and Risk for Public Health in Cameroon. Antibiotics (Basel) 2021; 10:402. [PMID: 33917678 PMCID: PMC8067999 DOI: 10.3390/antibiotics10040402] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 11/16/2022] Open
Abstract
Residues of antimicrobials used in farm can exert selective pressure and accelerate the occurrence of multidrug resistant bacteria in litter. This study aimed to investigate the resistance profile of Escherichia coli isolated from poultry litter. A total of 101 E. coli strains was isolated from 229 litter samples collected and stored for two months in the laboratory at room temperature. Antimicrobial susceptibility testing was performed using the disk diffusion method. An overall resistance prevalence of 58.4% (95% CI: 48.8-68.0) was obtained with 59 E. coli strains resistant to various antimicrobial agents. High levels of resistance were observed with ciprofloxacin (21/59: 36%), imipenem (27/59: 45%), norfloxacin (44/59: 74%), ceftriaxone (44/59: 74%), and levofloxacin (44/59: 75%). These antimicrobials classified under the Watch group by WHO are indicators of the high AMR risk to public health in Cameroon. Multivariable logistic regression analysis revealed that a greater probability of high level of E. coli multidrug resistance was associated with lack of training in poultry farming (OR = 0.13, p = 0.01), less experience in poultry farming (OR = 11.66 p = 0.04), and the high frequency of digestive tract disease (OR = 0.10; p = 0.001). This study revealed that poultry litter constitutes a potential source of dissemination of resistant germs from farm animals to the environment and humans.
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Affiliation(s)
- Frédéric Moffo
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
- Laboratory of Animal Physiology and Health, Department of Animal Science, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang 479, Cameroon;
| | - Mohamed Moctar Mouliom Mouiche
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Hervé Kapnang Djomgang
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Patchely Tombe
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Abel Wade
- National Veterinary Laboratory (LANAVET), Garoua 503, Cameroon;
| | - Fabrice Landjekpo Kochivi
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Jarvis Bouna Dongmo
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Cleophas Kahtita Mbah
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Nabilah Pemi Mapiefou
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundere 454, Cameroon; (M.M.M.M.); (H.K.D.); (P.T.); (F.L.K.); (J.B.D.); (C.K.M.); (N.P.M.)
| | - Marie Paule Ngogang
- Laboratoire de Recherche et d’Expertise Biomédicale (LABOREB), Yaoundé 35262, Cameroon;
| | - Julius Awah-Ndukum
- Laboratory of Animal Physiology and Health, Department of Animal Science, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang 479, Cameroon;
- Department of Animal Production Technology, College of Technology, University of Bamenda, Bambili 39, Cameroon
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Frumence G, Mboera LEG, Sindato C, Katale BZ, Kimera S, Metta E, Durrance-Bagale A, Jung AS, Mshana SE, Clark TG, Rweyemamu M, Legido-Quigley H, Matee MIN. The Governance and Implementation of the National Action Plan on Antimicrobial Resistance in Tanzania: A Qualitative Study. Antibiotics (Basel) 2021; 10:273. [PMID: 33803077 PMCID: PMC7998560 DOI: 10.3390/antibiotics10030273] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 12/17/2022] Open
Abstract
Tanzania launched its first National Action Plan (NAP) on antimicrobial resistance (AMR) in 2017 to reduce the burden of AMR in the country and contribute to the global response. We aimed to analyze the implementation of the NAP on AMR in Tanzania using the governance framework. In-depth interviews were conducted with human and animal health practitioners and national-level policy actors. We adapted Chua's AMR governance framework to analyze the development and implementation of the NAP in Tanzania. Implementation of the NAP has realized several achievements, including: (i) the establishment of a functioning Multi-Sectoral Coordinating Committee for coordinating the implementation of AMR activities; (ii) existence of governance structure; (iii) establishment of human and animal surveillance sites; (iv) creation of AMR awareness in the community and (v) availability of guidelines at the health facility level to ensure AMR stewardship. However, some dimensions of the governance areas, including reporting and feedback mechanisms, accountability, transparency and sustainability of AMR plans, are not effectively implemented. Addressing these challenges should involve strengthening the collaboration of the different sectors involved at different NAP implementation levels by careful planning and coordination, and provision of adequate resources to ensure sustainability.
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Affiliation(s)
- Gasto Frumence
- Muhimbili University of Health and Allied Sciences, Dar es Salaam 65001, Tanzania; (E.M.); (M.I.N.M.)
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
| | - Leonard E. G. Mboera
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
| | - Calvin Sindato
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
- Tabora Research Centre, National Institute for Medical Research, Tabora 45026, Tanzania
| | - Bugwesa Z. Katale
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
- Tanzania Commission for Science and Technology, Dar es Salaam 4302, Tanzania
| | - Sharadhuli Kimera
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
- Sokoine University of Agriculture, Morogoro 3019, Tanzania
| | - Emmy Metta
- Muhimbili University of Health and Allied Sciences, Dar es Salaam 65001, Tanzania; (E.M.); (M.I.N.M.)
| | - Anna Durrance-Bagale
- London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK; (A.D.-B.); (A.-S.J.); (T.G.C.); (H.L.-Q.)
| | - Anne-Sophie Jung
- London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK; (A.D.-B.); (A.-S.J.); (T.G.C.); (H.L.-Q.)
| | - Stephen E. Mshana
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
- Catholic University of Health and Allied Sciences, Mwanza 33109, Tanzania
| | - Taane G. Clark
- London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK; (A.D.-B.); (A.-S.J.); (T.G.C.); (H.L.-Q.)
| | - Mark Rweyemamu
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
- SACIDS Foundation for One Health, Sokoine University of Agriculture, Morogoro 3019, Tanzania
| | - Helena Legido-Quigley
- London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK; (A.D.-B.); (A.-S.J.); (T.G.C.); (H.L.-Q.)
| | - Mecky I. N. Matee
- Muhimbili University of Health and Allied Sciences, Dar es Salaam 65001, Tanzania; (E.M.); (M.I.N.M.)
- Eastern and Southern Africa Centers of Excellence for Infectious Diseases of Humans and Animals (SACIDS-ACE), Morogoro 3019, Tanzania; (L.E.G.M.); (C.S.); (B.Z.K.); (S.K.); (S.E.M.); (M.R.)
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Mouiche MMM, Moffo F, Betsama JDB, Mapiefou NP, Mbah CK, Mpouam SE, Penda RE, Ciake SAC, Feussom JMK, Kamnga ZF, Awah-Ndukum J. Challenges of antimicrobial consumption surveillance in food-producing animals in sub-Saharan African countries: Patterns of antimicrobials imported in Cameroon from 2014 to 2019. J Glob Antimicrob Resist 2020; 22:771-778. [PMID: 32645443 DOI: 10.1016/j.jgar.2020.06.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE Antimicrobial consumption surveillance is a useful tool for planning antimicrobial resistance control strategies and risk analysis. The present study was carried out to evaluate the consumption trends of antimicrobials for veterinary use in food-producing animals in Cameroon from 2014 to 2019. METHODS Data on quantities of classes of active substances were collected from the records of the technical authorization to import veterinary drugs of suppliers' invoices at the Ministry of Livestock (MINEPIA); animal population data were collected from the FAO-Stat database. RESULTS The study revealed that 217.67tonnes of antimicrobials (by weight of active substance) were imported during the 6-year period, with an average of 36.28±10.11tonnes per year. Tetracyclines (31.71%), sulfonamides (23.84%), quinolones (11.11%) and β-lactams (10.17%) were the most commonly imported classes of antimicrobials. With regard to the importance of veterinary antimicrobials to human medicine, critically important antimicrobial (34.3%), reserve (4.6%) and watch (25.5%) groups as classified by the WHO AWaRe categorization were recorded. Overall, a mean of 5.24±1.40mg/PCU (population correction unit) was used in all food-producing animals during the 6-year period. However, the mean quantity of antimicrobials adjusted by animal biomass was highest in poultry (213.32±50.26mg/kg), followed by pigs (63.04±18.87mg/kg), cattle (4.11±2.20mg/kg), sheep (0.83±0.43mg/kg) and goats (0.47±0.24mg/kg). CONCLUSION Strict surveillance systems of antimicrobial consumption in the country are vital to optimize control strategies. Monitoring importation data of veterinary antimicrobial products could be useful for sub-Saharan African countries to quantify consumption and estimate trends for antimicrobial usage effectively.
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Affiliation(s)
- Mohamed Moctar Mouliom Mouiche
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon.
| | - Frédéric Moffo
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon; Laboratory of Animal Physiology and Health, Department of Zootechnics, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
| | - Jean Daniel Betsama Betsama
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon
| | - Nabilah Pemi Mapiefou
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon
| | - Cleophas Kahtita Mbah
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon
| | - Serge Eugene Mpouam
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon
| | - Rose Eliane Penda
- Ministry of Livestock, Fisheries and Animal Industries (MINEPIA), Yaounde, Cameroon
| | | | - Jean Marc Kameni Feussom
- Ministry of Livestock, Fisheries and Animal Industries (MINEPIA), Yaounde, Cameroon; Epidemiology-Public Health-Veterinary Association (ESPV), Yaounde, Cameroon
| | | | - Julius Awah-Ndukum
- Department of Pharmacy, Pharmacology and Toxicology, School of Veterinary Medicine and Sciences, University of Ngaoundéré, Yaounde, Cameroon; Laboratory of Animal Physiology and Health, Department of Zootechnics, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon; College of Technology, University of Bamenda, Bambili, Cameroon
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