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Florin F, Bonneau B, Briseño-Roa L, Bessereau JL, Jospin M. Calcineurin-Dependent Homeostatic Response of C. elegans Muscle Cells upon Prolonged Activation of Acetylcholine Receptors. Cells 2023; 12:2201. [PMID: 37681933 PMCID: PMC10486475 DOI: 10.3390/cells12172201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023] Open
Abstract
Pharmacological adaptation is a common phenomenon observed during prolonged drug exposure and often leads to drug resistance. Understanding the cellular events involved in adaptation could provide new strategies to circumvent this resistance issue. We used the nematode Caenorhabditis elegans to analyze the adaptation to levamisole, an ionotropic acetylcholine receptor agonist, used for decades to treat nematode parasitic infections. Genetic screens in C. elegans identified "adapting mutants" that initially paralyze upon exposure to levamisole as the wild type (WT), but recover locomotion after a few hours whereas WT remain paralyzed. Here, we show that levamisole induces a sustained increase in cytosolic calcium concentration in the muscle cells of adapting mutants, lasting several hours and preceding a decrease in levamisole-sensitive acetylcholine receptors (L-AChR) at the muscle plasma membrane. This decrease correlated with a drop in calcium concentration, a relaxation of the animal's body and a resumption of locomotion. The decrease in calcium and L-AChR content depends on calcineurin activation in muscle cells. We also showed that levamisole adaptation triggers homeostatic mechanisms in muscle cells including mitochondria remodeling, lysosomal tubulation and an increase in autophagic activity. Levamisole adaptation thus provides a new experimental paradigm for studying how cells cope with calcium stress.
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Affiliation(s)
- Franklin Florin
- Institut NeuroMyoGène, CNRS UMR-5284, INSERM U-1314, MeLiS, Université Lyon, Université Claude Bernard Lyon 1, F-69008 Lyon, France (B.B.); (J.-L.B.)
| | - Benjamin Bonneau
- Institut NeuroMyoGène, CNRS UMR-5284, INSERM U-1314, MeLiS, Université Lyon, Université Claude Bernard Lyon 1, F-69008 Lyon, France (B.B.); (J.-L.B.)
- Institut Curie, CNRS UMR3347, INSERM U1021, Université Paris-Saclay, F-91405 Orsay, France
| | - Luis Briseño-Roa
- Institut NeuroMyoGène, CNRS UMR-5284, INSERM U-1314, MeLiS, Université Lyon, Université Claude Bernard Lyon 1, F-69008 Lyon, France (B.B.); (J.-L.B.)
- Medetia Pharmaceuticals, Institut Imagine, F-75015 Paris, France
| | - Jean-Louis Bessereau
- Institut NeuroMyoGène, CNRS UMR-5284, INSERM U-1314, MeLiS, Université Lyon, Université Claude Bernard Lyon 1, F-69008 Lyon, France (B.B.); (J.-L.B.)
| | - Maëlle Jospin
- Institut NeuroMyoGène, CNRS UMR-5284, INSERM U-1314, MeLiS, Université Lyon, Université Claude Bernard Lyon 1, F-69008 Lyon, France (B.B.); (J.-L.B.)
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Voigt K, Geiger M, Jäger M. [Five past twelve - the resistance situation in small ruminant gastrointestinal nematodes in Germany]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2023; 51:153-159. [PMID: 37567194 DOI: 10.1055/a-2097-9361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Anthelmintic resistance has reached alarming levels worldwide and already seriously threatens pasture-based small ruminant production in certain geographic regions. The situation in Europe has also dramatically deteriorated in the last decade. This review provides an overview of the occurrence of anthelmintic resistance in small ruminants with a particular focus on Germany and its neighbouring countries. It also covers mechanisms leading to the development and spread of anthelmintic resistance, and recommendations for a responsible use of anthelmintics in veterinary practice.
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Affiliation(s)
- Katja Voigt
- Klinik für Wiederkäuer mit Ambulanz und Bestandsbetreuung, Ludwig-Maximilians-Universität München
| | - Maximilian Geiger
- Klinik für Wiederkäuer mit Ambulanz und Bestandsbetreuung, Ludwig-Maximilians-Universität München
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Signs of multiple anthelmintic resistance in sheep gastrointestinal nematodes in Sweden. Vet Parasitol Reg Stud Reports 2022; 36:100789. [PMID: 36436900 DOI: 10.1016/j.vprsr.2022.100789] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/31/2022] [Accepted: 09/27/2022] [Indexed: 01/14/2023]
Abstract
Gastrointestinal nematodes in small ruminants are clinically and economically important parasites that often are controlled with anthelmintics. In this study, we compiled information on the anthelmintic efficacy collected on sheep farms according to routines established by Farm & Animal Health in Sweden. The efficacies of benzimidazoles (i.e. albendazole or fenbendazole, n = 30), ivermectin (n = 47), levamisole (n = 2) or moxidectin (n = 2) were examined between 2015 and 2021 in 81 treatment groups on 49 non-randomly selected farms in south-central Sweden. Drug efficacies were estimated with the faecal egg count reduction test. In addition, efficacy data were in most cases supplemented with data on the abundance of the three most common nematode genera in sheep by performing droplet digital (dd) PCR on coprocultures. Efficacies of <95% for benzimidazoles or ivermectin were identified in 37% and 77% of the tested groups, respectively. In addition, on 27 (55%) of the 49 farms where both benzimidazoles and ivermectin were tested, multiple resistance was found on 8 (30%). In contrast, on each of the two farms tested for levamisole and moxidectin both drugs proved to be 100% effective. However, because post-sampling was performed earlier than recommended in several susceptible groups (benzimidazoles = 15, and ivermectin = 10 groups), this could have underestimated the severity of the situation. Mainly larvae from the genus Haemonchus were detected in post-treatment coprocultures, in all groups with declared resistance, suggesting that this parasite was primarily associated with anthelmintic resistance. Unexpectedly, the DNA of larvae, which survived treatment, was also detected on farms declared as susceptible. Taken together, this indicates that the situation regarding the anthelmintic efficacy has deteriorated compared with the latest nationwide study on Swedish sheep farms conducted more than a decade ago. Unlike the previous study, the farm selection here was not strictly randomized but rather opportunistic i.e., only farms with a recognized parasite problem were included. Thus, there is a need for a truly randomized study to get an update on the extent of the situation of anthelmintic resistance at a national level, as well as to identify risk factors involved in the resistance selection. Research is also required to establish the optimal intervals for sampling post-treatment.
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Costa-Junior LM, Chaudhry UN, Skuce PJ, Stack S, Sargison ND. A loop-mediated isothermal amplification (LAMP) assay to identify isotype 1 β-tubulin locus SNPs in synthetic double-stranded Haemonchus contortus DNA. J Parasit Dis 2021; 46:47-55. [PMID: 35295940 PMCID: PMC8901900 DOI: 10.1007/s12639-021-01414-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/21/2021] [Indexed: 11/27/2022] Open
Abstract
Development of sustainable gastrointestinal nematode (GIN) control strategies depends on the ability to identify the frequencies of drug-susceptible and resistant genotypes in GIN populations arising from management practices undertaken on individual farms. Resistance to BZ drugs in GINs has been shown to be conferred by the presence of defined SNPs in the isotype 1 β-tubulin locus. Loop-mediated isothermal amplification (LAMP) assays are amenable to use on a range of DNA templates and are potentially adaptable to use in practical, cost-effective, pen-side diagnostic platforms that are needed to detect anthelmintic resistance in the field. In this study, we designed primers and examined LAMP assays to detect each of the three major isotype 1 β-tubulin SNPs conferring genetic susceptibility to BZ drugs. We used artificial pools of synthetic DNA, containing different proportions of susceptible and resistant SNPs to determine reproducibility of the assays. We demonstrated the detection of each of the isotype 1 β-tubulin SNPs conferring susceptibility to BZ drugs using the optimal LAMP assay. Isotype 1 β-tubulin SNP typing was effective in detecting BZ susceptibility, but the accuracy was reduced in samples with less than 60 % susceptible DNA. Our results show the potential for LAMP SNP typing to detect genetic susceptibility or resistance to anthelmintic drugs in livestock GINs, and some of the limitations in our approach that will need to be overcome in order to evaluate this assay using field samples.
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Affiliation(s)
| | - Umer N. Chaudhry
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Roslin, Midlothian, EH25 9RG UK
| | - Philip J. Skuce
- Moredun Research Institute, Pentlands Science Park, Edinburgh, Midlothian, EH26 0PZ Scotland, UK
| | - Seamus Stack
- Mast Group, Mast House, Derby Road, Bootle Merseyside, L20 1EA UK
| | - Neil D. Sargison
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Roslin, Midlothian, EH25 9RG UK
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Mooney D, Richards KG, Danaher M, Grant J, Gill L, Mellander PE, Coxon CE. An analysis of the spatio-temporal occurrence of anthelmintic veterinary drug residues in groundwater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144804. [PMID: 33485200 DOI: 10.1016/j.scitotenv.2020.144804] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/16/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Anthelmintics are antiparasitic drugs used to control helminthic parasites such as nematodes and trematodes in animals, particularly those exposed through pasture-based production systems. Even though anthelmintics have been shown to be excreted into the environment in relatively high amounts as unmetabolized drug or transformation products (TPs), there is still only limited information available on their environmental occurrence, particularly in groundwater, which has resulted in them being considered as potential emerging contaminants of concern. A comprehensive study was carried out to investigate the occurrence of 40 anthelmintic residues (including 13 TPs) in groundwaters (and associated surface waters) throughout the Republic of Ireland. The study focused on investigating the occurrence of these contaminants in karst and fractured bedrock aquifers, with a total of 106 sites (88 groundwaters and 18 surface waters) samples during spring 2017. Seventeen anthelmintic compounds consisting of eight parent drugs and nine TPs were detected at 22% of sites at concentrations up to 41 ng L-1. Albendazole and its TPs were most frequently detected residues, found at 8% of groundwater sites and 28% of surface water sites. Multivariate statistical analysis identified several source and pathway factors as being significantly related to the occurrence of anthelmintics in groundwater, however there was an evident localised effect which requires further investigation. An investigation of the temporal variations in occurrence over a 13 month period indicated a higher frequency and concentration of anthelmintics during February/March and again later during August/September 2018, which coincided with periods of increased usage and intensive meteorological events. This work presents the first detections of these contaminants in Irish groundwater and it contributes to broadening our understanding of anthelmintics in the environment. It also provides insight to seasonal trends in occurrence, which is critical for assessing potential future effects and implications of climate change.
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Affiliation(s)
- D Mooney
- Geology Department/Trinity Centre for the Environment, School of Natural Sciences, Trinity College Dublin, Ireland; Food Safety Department, Teagasc, Ashtown Food Research Centre, Ashtown, Dublin 15, Ireland; Irish Centre for Research in Applied Geosciences (iCRAG), Ireland.
| | - K G Richards
- Irish Centre for Research in Applied Geosciences (iCRAG), Ireland; Environment, Soils and Land-Use Department, Environment Research Centre, Teagasc, Johnstown Castle, Wexford, Ireland
| | - M Danaher
- Food Safety Department, Teagasc, Ashtown Food Research Centre, Ashtown, Dublin 15, Ireland
| | - J Grant
- Statistics and Applied Physics, Research Operations Group, Teagasc, Ashtown, Dublin 15, Ireland
| | - L Gill
- Irish Centre for Research in Applied Geosciences (iCRAG), Ireland; Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Ireland
| | - P-E Mellander
- Environment, Soils and Land-Use Department, Environment Research Centre, Teagasc, Johnstown Castle, Wexford, Ireland
| | - C E Coxon
- Geology Department/Trinity Centre for the Environment, School of Natural Sciences, Trinity College Dublin, Ireland; Irish Centre for Research in Applied Geosciences (iCRAG), Ireland
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Rose Vineer H, Morgan ER, Hertzberg H, Bartley DJ, Bosco A, Charlier J, Chartier C, Claerebout E, de Waal T, Hendrickx G, Hinney B, Höglund J, Ježek J, Kašný M, Keane OM, Martínez-Valladares M, Mateus TL, McIntyre J, Mickiewicz M, Munoz AM, Phythian CJ, Ploeger HW, Rataj AV, Skuce PJ, Simin S, Sotiraki S, Spinu M, Stuen S, Thamsborg SM, Vadlejch J, Varady M, von Samson-Himmelstjerna G, Rinaldi L. Increasing importance of anthelmintic resistance in European livestock: creation and meta-analysis of an open database. Parasite 2020; 27:69. [PMID: 33277891 PMCID: PMC7718593 DOI: 10.1051/parasite/2020062] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/02/2020] [Indexed: 11/15/2022] Open
Abstract
Helminth infections are ubiquitous in grazing ruminant production systems, and are responsible for significant costs and production losses. Anthelmintic Resistance (AR) in parasites is now widespread throughout Europe, although there are still gaps in our knowledge in some regions and countries. AR is a major threat to the sustainability of modern ruminant livestock production, resulting in reduced productivity, compromised animal health and welfare, and increased greenhouse gas emissions through increased parasitism and farm inputs. A better understanding of the extent of AR in Europe is needed to develop and advocate more sustainable parasite control approaches. A database of European published and unpublished AR research on gastrointestinal nematodes (GIN) and liver fluke (Fasciola hepatica) was collated by members of the European COST Action "COMBAR" (Combatting Anthelmintic Resistance in Ruminants), and combined with data from a previous systematic review of AR in GIN. A total of 197 publications on AR in GIN were available for analysis, representing 535 studies in 22 countries and spanning the period 1980-2020. Reports of AR were present throughout the European continent and some reports indicated high within-country prevalence. Heuristic sample size-weighted estimates of European AR prevalence over the whole study period, stratified by anthelmintic class, varied between 0 and 48%. Estimated regional (country) prevalence was highly heterogeneous, ranging between 0% and 100% depending on livestock sector and anthelmintic class, and generally increased with increasing research effort in a country. In the few countries with adequate longitudinal data, there was a tendency towards increasing AR over time for all anthelmintic classes in GIN: aggregated results in sheep and goats since 2010 reveal an average prevalence of resistance to benzimidazoles (BZ) of 86%, macrocyclic lactones except moxidectin (ML) 52%, levamisole (LEV) 48%, and moxidectin (MOX) 21%. All major GIN genera survived treatment in various studies. In cattle, prevalence of AR varied between anthelmintic classes from 0-100% (BZ and ML), 0-17% (LEV) and 0-73% (MOX), and both Cooperia and Ostertagia survived treatment. Suspected AR in F. hepatica was reported in 21 studies spanning 6 countries. For GIN and particularly F. hepatica, there was a bias towards preferential sampling of individual farms with suspected AR, and research effort was biased towards Western Europe and particularly the United Kingdom. Ongoing capture of future results in the live database, efforts to avoid bias in farm recruitment, more accurate tests for AR, and stronger appreciation of the importance of AR among the agricultural industry and policy makers, will support more sophisticated analyses of factors contributing to AR and effective strategies to slow its spread.
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Affiliation(s)
- Hannah Rose Vineer
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool Neston, Cheshire CH64 7TE UK
| | - Eric R. Morgan
- Institute for Global Food Security, Queen’s University Belfast, Biological Sciences 19 Chlorine Gardens Belfast BT9 5DL UK
| | | | - David J. Bartley
- Disease Control, Moredun Research Institute, Pentlands Science Park, Bush Loan Penicuik, Edinburgh EH26 0PZ UK
| | - Antonio Bosco
- University of Naples Federico II, Unit of Parasitology and Parasitic Diseases, Department of Veterinary Medicine and Animal Production, CREMOPAR Via Delpino, 1 80137 Napoli Italy
| | | | | | - Edwin Claerebout
- Laboratory for Parasitology, Faculty of Veterinary Medicine, Ghent University B9820 Merelbeke Belgium
| | - Theo de Waal
- School of Veterinary Medicine, University College Dublin Dublin D04 W6F6 Ireland
| | | | - Barbara Hinney
- Institute of Parasitology, Department of Pathobiology, Vetmeduni Vienna Veterinärplatz 1 1210 Vienna Austria
| | - Johan Höglund
- Swedish University of Agricultural Sciences, Department of Veterinary Public Health, Section for Parasitology P.O. Box 7036 Uppsala Sweden
| | - Jožica Ježek
- Clinic for Reproduction and Large Animals, Veterinary faculty, University of Ljubljana Gerbičeva 60 1000 Ljubljana Slovenia
| | - Martin Kašný
- Department of Botany and Zoology, Faculty of Science, Masaryk University Brno 611 37 Czech Republic
| | - Orla M. Keane
- Animal Bioscience Department, Teagasc Grange, Dunsany, Co. Meath C15 PW93 Ireland
| | | | - Teresa Letra Mateus
- CISAS – Centre for Research and Development in Agrifood Systems and Sustainability, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Àlvares 4900-347 Viana do Castelo Portugal
- EpiUnit – Instituto de Saúde Pública da Universidade do Porto Rua das Taipas, nº 135 4050-091 Porto Portugal
| | - Jennifer McIntyre
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Garscube Estate Glasgow G61 1QH UK
| | - Marcin Mickiewicz
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences Nowoursynowska 159c 02-776 Warsaw Poland
| | - Ana Maria Munoz
- Faculdade de Medicina Veterinária – Universidade Lusófona de Humanidades e Tecnologias Av. Campo Grande 376 1749-024 Lisbon Portugal
| | - Clare Joan Phythian
- Institute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences Sandnes 4325 Norway
| | - Harm W. Ploeger
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University Yalelaan 1 3584 CL Utrecht The Netherlands
| | - Aleksandra Vergles Rataj
- Institute for Microbiology and Parasitology, Veterinary Faculty, University of Ljubljana Gerbičeva 60 1000 Ljubljana Slovenia
| | - Philip J. Skuce
- Disease Control, Moredun Research Institute, Pentlands Science Park, Bush Loan Penicuik, Edinburgh EH26 0PZ UK
| | - Stanislav Simin
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad 21101 Novi Sad Republic of Serbia
| | - Smaragda Sotiraki
- Veterinary Research Institute, Section for Parasitology, HAO-DEMETER, Thermi 57001 Thessaloniki Greece
| | - Marina Spinu
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca 400372 Romania
| | - Snorre Stuen
- Institute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences Sandnes 4325 Norway
| | - Stig Milan Thamsborg
- Section for Parasitology and Aquatic Pathobiology, Department of Veterinary and Animal Sciences, University of Copenhagen DK-1870 Frederiksberg C Denmark
| | - Jaroslav Vadlejch
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague Kamycka 129 165 00 Prague Suchdol Czech Republic
| | - Marian Varady
- Institute of Parasitology of the Slovak Academy of Sciences Kosice 040 01 Slovakia
| | - Georg von Samson-Himmelstjerna
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin Robert-von-Ostertag-Str. 7–13 14163 Berlin Germany
| | - Laura Rinaldi
- University of Naples Federico II, Unit of Parasitology and Parasitic Diseases, Department of Veterinary Medicine and Animal Production, CREMOPAR Via Delpino, 1 80137 Napoli Italy
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Silva LP, Debiage RR, Bronzel-JÚnior JL, Silva RMGDA, -Peixoto ECTM. In vitro anthelmintic activity of Psidium guajava hydroalcoholic extract against gastro-intestinal sheep nematodes. AN ACAD BRAS CIENC 2020; 92:e20190074. [PMID: 33084758 DOI: 10.1590/0001-3765202020190074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/17/2019] [Indexed: 01/20/2023] Open
Abstract
Tanniferous plants have been used for ruminants verminosis control and represent a possibility to minimize the pharmacological resistance against conventional antiparasitics. This study aimed to evaluate the antihelminthic activity of the hydroalcoholic extract of stem bark of guava tree (PgHA). It was performed the hatchability and larval migration inhibition assays to evaluate PgHA at the following concentrations 0.62, 1.25, 2.5 and 5.0 mg mL-1 and the control treatments. The total polyphenol, flavonoid and tannin contents were determined by phytochemical analysis, high performance liquid chromatography coupled to mass spectrometry. The antioxidant activity was evaluated by 1,1-diphenyl-2-picrylhydrazyl, ferric reducing antioxidant power and thiobarbituric acid reactive substances tests. It was also determinated total protein, intracellular H2O2 and antioxidant activity of enzimes: glutathione S-transferase and superoxide dismutase. PgHA was able to inhibit both hatchability and larval migration, but only hatchability inhibition presented dose-dependent pattern. The antioxidant activity was demonstrated by linear regression with IC50 corresponding to 534.02 μg mL-1. The antiparasitic mechanism occurred through pro-oxidative activity by the increase of total proteins, intracellular H2O2 and the lipid peroxidation products, as well as the increase of the enzymes above related. Thus, the PgHA showed antiparasitic activity in vitro.
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Affiliation(s)
- Luciana P Silva
- Universidade Estadual do Norte do Paraná (UENP), Departamento de Produção Animal, Laboratório de Controle Parasitológico Animal em Agroecológico e Sistemas Orgânicos de Produção, s / n, Rodovia BR - 369, 86360-000 Bandeirantes, PR, Brazil
| | - Rafael R Debiage
- Universidade Estadual do Norte do Paraná (UENP), Departamento de Produção Animal, Laboratório de Controle Parasitológico Animal em Agroecológico e Sistemas Orgânicos de Produção, s / n, Rodovia BR - 369, 86360-000 Bandeirantes, PR, Brazil
| | - JoÃo L Bronzel-JÚnior
- Universidade Estadual Paulista (UNESP), Instituto de Química, Av. Prof. Francisco Degni, 55, Jardim Quitandinha, 14800-900 Araraquara, São Paulo, Brazil
| | - Regildo M G DA Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências e Línguas de Assis, Departamento de Biotecnologia, Laboratório de Fitoterapia e Produtos Naturais, Av. Dom Antônio, 2100, 19806-900 Assis, SP, Brazil
| | - Erika C T Mello -Peixoto
- Universidade Estadual do Norte do Paraná (UENP), Departamento de Produção Animal, Laboratório de Controle Parasitológico Animal em Agroecológico e Sistemas Orgânicos de Produção, s / n, Rodovia BR - 369, 86360-000 Bandeirantes, PR, Brazil
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Kelleher AC, Good B, de Waal T, Keane OM. Anthelmintic resistance among gastrointestinal nematodes of cattle on dairy calf to beef farms in Ireland. Ir Vet J 2020; 73:12. [PMID: 32637072 PMCID: PMC7331193 DOI: 10.1186/s13620-020-00167-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 06/26/2020] [Indexed: 01/30/2023] Open
Abstract
Background The control of gastrointestinal nematodes (GIN) of cattle in pasture-based production systems such as Ireland is highly dependent on the availability of efficacious anthelmintics. There is very little information available on the efficacy of the broad-spectrum anthelmintics against GIN of cattle in Ireland and the aim of this study was to determine the prevalence of anthelmintic resistance on dairy calf to beef farms. Results GIN burden was monitored on thirty-six recruited farms by performing herd level faecal egg counts (FEC) every 2 weeks. Of these, nine farms were lost from the study as calves were treated with an anthelmintic for Dictyocaulus viviparus, two were lost as they treated for GIN, one dropped out of the study and on one the herd FEC did not reach the threshold for carrying out the Faecal Egg Count Reduction Test (FECRT). On the remaining 23 farms, once the herd FEC reached 100 eggs per gram, a FECRT was carried out. Pre and post-treatment larval cultures were also performed to identify the GIN to genus level. The efficacy of fenbendazole, levamisole, ivermectin and moxidectin was evaluated on 15, 11, 16 and 11 farms respectively. Resistance to fenbendazole was identified on 9 farms (60%) with resistance suspected on a further farm. Resistance to levamisole, ivermectin and moxidectin was detected on 2 (18%), 16 (100%) and 8 (73%) farms respectively. The predominant genera detected pre and post-treatment were Cooperia and Ostertagia with both genera detected post-treatment with fenbendazole and ivermectin. Due to the low proportion of Ostertagia spp. pre-treatment, the efficacy of levamisole or moxidectin against this genus could not be reliably established. Conclusions Anthelmintic resistance was widespread on the sampled dairy calf to beef farms in Ireland with resistance to benzimidazole, levamisole, ivermectin and moxidectin detected.
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Affiliation(s)
- Anne C Kelleher
- Animal & Bioscience Department, Teagasc Grange, Dunsany, Co. Meath Ireland.,School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 Ireland
| | - Barbara Good
- Animal & Bioscience Department, Teagasc Mellows Campus, Athenry, Co. Galway Ireland
| | - Theo de Waal
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 Ireland
| | - Orla M Keane
- Animal & Bioscience Department, Teagasc Grange, Dunsany, Co. Meath Ireland
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9
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Cell grazing and Haemonchus contortus control in sheep: lessons from a two-year study in temperate Western Europe. Sci Rep 2019; 9:12699. [PMID: 31481719 PMCID: PMC6722091 DOI: 10.1038/s41598-019-49034-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/06/2019] [Indexed: 01/18/2023] Open
Abstract
Managing infections of sheep with anthelmintic resistant gastrointestinal nematodes (GIN) is a major challenge for sheep producers in Western Europe. New methods of grazing management have been poorly explored as a component of an integrated and sustainable control of these parasites. Therefore, the purpose of this study was to evaluate the effect of two different types of grazing systems of sheep (intensive cell grazing versus conventional rotational grazing) on GIN infections over two years in a farm located in a temperate environment of Western France. When considering the whole study, the type of grazing system did not influence significantly the intensity of egg excretions of adult ewes even if the proportion of ewes excreting high numbers of GIN eggs was higher in cell grazing system than in rotational grazing system. The most striking result of this survey was the effect of grazing system on the GIN species composition harbored by ewes and by their lambs: with time, the proportions of H. contortus infections were lower in cell grazing system than in rotational grazing system. In conclusion, the cell grazing system, as implemented in this study, could limit the importance of this highly pathogenic nematode species in sheep.
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Bohan A, Shalloo L, Creighton P, Berry D, Boland T, O'Brien A, Pabiou T, Wall E, McDermott K, McHugh N. Deriving economic values for national sheep breeding objectives using a bio-economic model. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.05.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Keegan JD, Good B, Hanrahan JP, Lynch C, de Waal T, Keane OM. Live weight as a basis for targeted selective treatment of lambs post-weaning. Vet Parasitol 2018; 258:8-13. [DOI: 10.1016/j.vetpar.2018.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 06/01/2018] [Accepted: 06/02/2018] [Indexed: 11/27/2022]
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Muchiut SM, Fernández AS, Steffan PE, Riva E, Fiel CA. Anthelmintic resistance: Management of parasite refugia for Haemonchus contortus through the replacement of resistant with susceptible populations. Vet Parasitol 2018; 254:43-48. [DOI: 10.1016/j.vetpar.2018.03.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 03/01/2018] [Accepted: 03/03/2018] [Indexed: 11/17/2022]
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In Vitro Lethal Activity of the Nematophagous Fungus Clonostachys rosea (Ascomycota: Hypocreales) against Nematodes of Five Different Taxa. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3501827. [PMID: 29750150 PMCID: PMC5884226 DOI: 10.1155/2018/3501827] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 01/18/2018] [Accepted: 02/04/2018] [Indexed: 12/20/2022]
Abstract
This study was aimed to evaluate the in vitro lethal activity of the nematophagous fungi Clonostachys rosea against 5 nematodes species belonging to different taxa. Two groups of 35 Petri dishes (PD) each were divided into 5 series of 7 (PD). Group 1 (series 1, 2, 3, 4, and 5) contained only water agar; meanwhile group 2 plates (series 6, 7, 8, 9, and 10) contained C. rosea cultures growth on water agar. Every plate from the two groups was added with 500 nematodes corresponding to the following genera/specie: Haemonchus contortus, Caenorhabditis elegans, Rhabditis sp., Panagrellus redivivus, and Butlerius sp. After 5-day incubation at room temperature, free (nontrapped) larvae were recovered from plates using the Baermann funnel technique. Recovered nematodes were counted and compared with their proper controls. Results shown an important reduction percentage of the nematode population attributed to the fungal lethal activity as follows: H. contortus (L3) 87.7%; C. elegans 94.7%; Rhabditis sp. 71.9%; P. redivivus 92.7%; and Butlerius sp. 100% (p ≤ 0.05). The activity showed by C. rosea against the H. contortus can be crucial for further studies focused to the biological control of sheep haemonchosis, although the environmental impact against beneficial nematodes should be evaluated.
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McMahon C, Edgar HWJ, Barley JP, Hanna REB, Brennan GP, Fairweather I. Control of Nematodirus spp. infection by sheep flock owners in Northern Ireland. Ir Vet J 2017; 70:31. [PMID: 29075480 PMCID: PMC5649088 DOI: 10.1186/s13620-017-0109-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 10/10/2017] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND To address a lack of information on the control of ovine helminth parasites in Northern Ireland (NI), a number of research projects have been undertaken, dealing with gastrointestinal nematodes, tapeworms and liver fluke. This investigation concerns Nematodirus and concentrates on three aspects of disease: farm management strategies for its control, derived from the results of a Questionnaire; the efficacy of treatment used by farmers, as determined by a coprological survey; and the hatching requirements of Nematodirus eggs, that is, whether prolonged chilling is a pre-requisite for hatching. RESULTS A Questionnaire was sent to 252 sheep farmers in NI in March 2012 (covering the years 2009-2012) and replies were received from 228 farmers. Under-dosing, inaccurate calibration of equipment and inappropriate product choice were poor practices identified. Following this survey, the efficacy of treatment of Nematodirus spp. in sheep flocks was evaluated in April and May 2012. Sampling kits were sent to 51 flock owners, all of whom returned pre- and post-anthelmintic dosing faecal samples to the laboratory for analysis. At the time of treatment, 41 flocks were positive for Nematodirus (as diagnosed by the presence of eggs). Reduced benzimidazole efficacy was detected in 35.7% of flocks tested (n = 28). Although only involving a small number of flocks, reduced efficacy of levamisole treatment was detected in 50%, of avermectins in 33% and of moxidectin in 75% of flocks tested (n = 2, 6 and 4, respectively). In the egg hatch experiment, carried out under "chilled" and "non-chilled" conditions, 43% of the eggs in the "non-chilled" group were able to hatch, compared to 100% in the "chilled" group. CONCLUSIONS The identification of inefficient control strategies argues for continued education of stockholders, in order to improve their management programmes. This is particularly important where the practices might impact on the development of anthelmintic resistance, which has been shown to exist on NI farms. The appropriate choice of anthelmintic is a vital part of this plan. The ability of eggs to hatch under non-chilled conditions demonstrates a flexibility in hatching behaviour. This may represent an adaptation to climate change and account for the recent emergence of a second, autumnal peak of infection.
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Affiliation(s)
- Connor McMahon
- Parasite Therapeutics Research Group, School of Biological Sciences, Medical Biology Centre, The Queen’s University of Belfast, 97 Lisburn Road, Belfast, BT9 7BL UK
| | - Hillary W. J. Edgar
- Veterinary Sciences Division, Agri-Food and Biosciences Institute (AFBI) Stormont, Belfast, BT4 3SD UK
| | - Jason P. Barley
- Veterinary Sciences Division, Agri-Food and Biosciences Institute (AFBI) Stormont, Belfast, BT4 3SD UK
| | - Robert E. B. Hanna
- Veterinary Sciences Division, Agri-Food and Biosciences Institute (AFBI) Stormont, Belfast, BT4 3SD UK
| | - Gerard P. Brennan
- Parasite Therapeutics Research Group, School of Biological Sciences, Medical Biology Centre, The Queen’s University of Belfast, 97 Lisburn Road, Belfast, BT9 7BL UK
| | - Ian Fairweather
- Parasite Therapeutics Research Group, School of Biological Sciences, Medical Biology Centre, The Queen’s University of Belfast, 97 Lisburn Road, Belfast, BT9 7BL UK
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Seyoum Z, Demessie Y, Bogale B, Melaku A. Field evaluation of the efficacy of common anthelmintics used in the control of gastrointestinal nematodes of sheep in Dabat district, Northwest Ethiopia. Ir Vet J 2017; 70:18. [PMID: 28596826 PMCID: PMC5461779 DOI: 10.1186/s13620-017-0097-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 06/01/2017] [Indexed: 11/24/2022] Open
Abstract
Background Gastrointestinal nematode (GIN) infections are the main impediments that restrict the welfare and productivity of small ruminant in the world. Effective management of GINs in grazing sheep relies heavily on the use of highly efficacious anthelmintic drugs. However, anthelmintic resistance is becoming a significant concern in the world, and this phenomenon severely threatens the potential utilisation of this control strategy. Therefore, this study was conducted 1) to evaluate the efficacy of commonly used anthelmintic on GINs in naturally infected sheep and 2) to assess the farmers’ perception on anthelmintics utilisation practices in Dabat district, Northwest Ethiopia. Methods One hundred twenty nematode infected sheep were used in this study. Sheep were selected based on the egg count (≥150 eggs per gram of faeces). The animals were allocated randomly into four groups (30 animals per group). Group-I, II and III were treated with Albendazole, Tetramisole, and Ivermectin, respectively. The 4th group was left untreated (as control). Faecal samples were collected on day 0 (before treatment), on day 3, 7, 10 and 14 (post-treatment). The modified McMaster technique was used for quantifying the eggs. Faecal egg count reduction test (FECRT) was applied to determine the efficacy of anthelmintic at day 14 (post-treatment). In addition, a questionnaire survey was conducted on 100 randomly selected sheep owners. Results All anthelmintics tested revealed significant (P < 0.05) reduction in nematode egg excretion in the sheep post-treatment. Faecal egg count reduction (FECR) levels for Albendazole, Tetramisole, and Ivermectin were 97.2, 98.9 and 97.7%, respectively. Post-treatment egg counts and percentage reduction of egg counts were not significantly different (P > 0.05) among the treatment groups. The nematode genera identified before treatment were Haemonchus, Trichostrongylus, Cooperia, Trichuris, Teladorsagia, Bunostomum, and Strongyloides. Haemonchus and Trichostrongylus were detected after treatment with Albendazole and Ivermectin. The questionnaire survey revealed that Albendazole was the most commonly (90%) used anthelmintic to treat nematodes in sheep, followed by Tetramisole (36%) and Tetraclozan (Tetramisole-Oxyclozanide combination) (20%). Respondents expressed that anthelmintic selection was made based on veterinarian prescription (84%), colour (27%), efficacy (4%), price affordability (1%) and availability (1%). Conclusion This study demonstrated that the tested anthelmintics had an acceptable level of efficacy against GINs of sheep.
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Affiliation(s)
- Zewdu Seyoum
- College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Amhara Ethiopia
| | - Yitayew Demessie
- College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Amhara Ethiopia
| | - Basazinew Bogale
- College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Amhara Ethiopia
| | - Achenef Melaku
- College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Amhara Ethiopia
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