Identification and Functional Characterization of an ABC Transporter of Haemonchus Contortus, the P-Glycoprotein 13 Marion A
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Haemonchus Contortus Infections in Alpacas and Sheep
Haemonchus contortus Infections in Alpacas and Sheep Sarah Jane Casey Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science In Biomedical and Veterinary Sciences Anne M. Zajac, Chair Stephan A. Wildeus David S. Lindsay William S. Swecker, Jr. April 30, 2014 Blacksburg, VA Keywords: Haemonchus contortus, Experimental Infection, Alpacas, Sheep Haemonchus contortus Infections in Alpacas and Sheep Sarah Jane Casey ABSTRACT The blood feeding nematode Haemonchus contortus infects the abomasum of small ruminants and compartment three (C-3) of camelids. Heavy infections may cause severe anemia and death. Alpacas were first introduced into the U.S. in the 1980s. Although not true ruminants, alpacas may become infected with H. contortus and develop the same clinical signs as sheep and goats. Even though alpacas may become infected with the parasite, prior research by Hill et al. (1993) and Green et al. (1996) indicates alpacas may be more resistant to parasitic infection because they found lower numbers of eggs in the feces of alpacas compared to small ruminants. For our research, we hypothesized that given the same exposure to experimental infection, alpacas would be less susceptible than sheep to H. contortus. Experiment 1 was conducted with adult male alpacas (23) and sheep (12) housed in pens to prevent additional exposure to H. contortus. All animals were dewormed orally with a cocktail of fenbendazole, levamisole, and ivermectin. Haemonchus contortus infective larvae were administered orally to alpacas and rams in the following groups:1) 20,000 larvae as a single dose (bolus, n=6 both alpacas and sheep), 2) 20,000 larvae in daily doses of 4,000 larvae for 5 days (trickle, n=5 for alpacas, n=6 for sheep). -
Gastrointestinal Helminthic Parasites of Habituated Wild Chimpanzees
Aus dem Institut für Parasitologie und Tropenveterinärmedizin des Fachbereichs Veterinärmedizin der Freien Universität Berlin Gastrointestinal helminthic parasites of habituated wild chimpanzees (Pan troglodytes verus) in the Taï NP, Côte d’Ivoire − including characterization of cultured helminth developmental stages using genetic markers Inaugural-Dissertation zur Erlangung des Grades eines Doktors der Veterinärmedizin an der Freien Universität Berlin vorgelegt von Sonja Metzger Tierärztin aus München Berlin 2014 Journal-Nr.: 3727 Gedruckt mit Genehmigung des Fachbereichs Veterinärmedizin der Freien Universität Berlin Dekan: Univ.-Prof. Dr. Jürgen Zentek Erster Gutachter: Univ.-Prof. Dr. Georg von Samson-Himmelstjerna Zweiter Gutachter: Univ.-Prof. Dr. Heribert Hofer Dritter Gutachter: Univ.-Prof. Dr. Achim Gruber Deskriptoren (nach CAB-Thesaurus): chimpanzees, helminths, host parasite relationships, fecal examination, characterization, developmental stages, ribosomal RNA, mitochondrial DNA Tag der Promotion: 10.06.2015 Contents I INTRODUCTION ---------------------------------------------------- 1- 4 I.1 Background 1- 3 I.2 Study objectives 4 II LITERATURE OVERVIEW --------------------------------------- 5- 37 II.1 Taï National Park 5- 7 II.1.1 Location and climate 5- 6 II.1.2 Vegetation and fauna 6 II.1.3 Human pressure and impact on the park 7 II.2 Chimpanzees 7- 12 II.2.1 Status 7 II.2.2 Group sizes and composition 7- 9 II.2.3 Territories and ranging behavior 9 II.2.4 Diet and hunting behavior 9- 10 II.2.5 Contact with humans 10 II.2.6 -
Evaluation of Resistance in a Selected Field Strain of Haemonchus Contortus to Ivermectin and Moxidectin Using the Larval Migration on Agar Test1
Pesq. Vet. Bras. 33(2):183-187, fevereiro 2013 Evaluation of resistance in a selected field strain of Haemonchus contortus to ivermectin and moxidectin using the Larval Migration on Agar Test1 Fernanda S. Fortes2*, Fernando S. Kloster2, Andressa S. Schafer3, Daniele Bier2, Andréia Buzatti2, Ursula Y. Yoshitani2 and Marcelo B. Molento2 ABSTRACT.- Fortes F.S., Kloster F.S., Schafer A.S., Bier D., Buzatti A., Yoshitani U.Y. & Molento M.B. 2013. Evaluation of resistance in selected field strain of Haemonchus contortus to ivermectin and moxidectin using the Larval Migration on Agar Test. Pesquisa Veterinária Brasileira 33(2):183-187. Laboratório de Doenças Parasitárias, Universidade Federal do Paraná, Rua dos Funcionários 1540, Curitiba, PR 80035-050, Brazil. E-mail: [email protected] Haemonchus contortus of disease in small ruminants worldwide, and the control programs of parasitic nematodes - including H. contortus - rely is one mostly of the on mostthe use common of anthelmintic and economically drugs. The significant consequence causes of the use of this, as the sole sanitary strategy to avoid parasite infections, was the reduction majorof the efficacyconcern of for all the chemotherapeutic sustainable parasite products management with a heavy on selectionfarms. The for objective resistance. of Thethis researchwidespread was of to anthelmintic determine and resistance compare and the theivermectin difficulty (IVM) of its and early moxidectin diagnosis (MOX) has been effect a H. contortus with a known resistance status, using the in vitro larval migration on agar test (LMAT). Third stage larvae of the selected isolate were obtai- nedin a fromselected faecal field cultures strain of experimentally infected sheep and incubated in eleven increa- sing diluted concentrations of IVM and MOX (6, 12, 24, 48, 96, 192, 384, 768, 1536, 3072 and 6144µg/mL). -
Parasites of South African Wildlife. XIX. the Prevalence of Helminths in Some Common Antelopes, Warthogs and a Bushpig in the Limpopo Province, South Africa
Page 1 of 11 Original Research Parasites of South African wildlife. XIX. The prevalence of helminths in some common antelopes, warthogs and a bushpig in the Limpopo province, South Africa Authors: Little work has been conducted on the helminth parasites of artiodactylids in the northern 1 Ilana C. van Wyk and western parts of the Limpopo province, which is considerably drier than the rest of the Joop Boomker1 province. The aim of this study was to determine the kinds and numbers of helminth that Affiliations: occur in different wildlife hosts in the area as well as whether any zoonotic helminths were 1Department of Veterinary present. Ten impalas (Aepyceros melampus), eight kudus (Tragelaphus strepsiceros), four blue Tropical Diseases, University wildebeest (Connochaetes taurinus), two black wildebeest (Connochaetes gnou), three gemsbok of Pretoria, South Africa (Oryx gazella), one nyala (Tragelaphus angasii), one bushbuck (Tragelaphus scriptus), one Correspondence to: waterbuck (Kobus ellipsiprymnus), six warthogs (Phacochoerus aethiopicus) and a single bushpig Ilana van Wyk (Potamochoerus porcus) were sampled from various localities in the semi-arid northern and western areas of the Limpopo province. Email: [email protected] New host–parasite associations included Trichostrongylus deflexus from blue wildebeest, Postal address: Agriostomum gorgonis from black wildebeest, Stilesia globipunctata from the waterbuck and Private bag X04, Fasciola hepatica in a kudu. The mean helminth burden, including extra-gastrointestinal Onderstepoort 0110, South Africa helminths, was 592 in impalas, 407 in kudus and blue wildebeest, 588 in black wildebeest, 184 in gemsbok, and 2150 in the waterbuck. Excluding Probstmayria vivipara, the mean helminth Dates: burden in warthogs was 2228 and the total nematode burden in the bushpig was 80. -
The Identification of Haemonchus Species and Diagnosis of Haemonchosis
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DigitalCommons@University of Nebraska University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Department of Agriculture: Agricultural Publications from USDA-ARS / UNL Faculty Research Service, Lincoln, Nebraska 2016 The Identification of Haemonchus Species and Diagnosis of Haemonchosis Dante Zarlenga E.P. Hoberg W. Tuo Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. CHAPTER FIVE The Identification of Haemonchus Species and Diagnosis of Haemonchosis D.S. Zarlenga1, E.P. Hoberg, W. Tuo USDA, Agricultural Research Service, Beltsville, MD, United States 1Corresponding author: E-mail: [email protected] Contents 1. Introduction 146 2. Morphological Approaches for Identifying Haemonchus contortus 147 2.1 Morphology; the gold standard 147 2.1.1 Identification of adult worms 148 2.1.2 Identification of infective third-stage larvae 150 2.1.3 Identification of parasitic fourth-stage larvae 152 2.1.4 Identification of eggs 152 3. Molecular Methods for Identifying Haemonchus 155 3.1 Haemonchus contortus, Haemonchus placei or both? 155 3.2 Traditional PCR 157 3.3 Real-time PCR 159 3.4 The next generation 162 3.4.1 Loop-mediated isothermal amplification 162 3.4.2 Metagenomics and pyrosequencing 163 4. -
Anthelmintic Resistance of Ostertagia Ostertagi and Cooperia Oncophora to Macrocyclic Lactones in Cattle from the Western United States
Veterinary Parasitology 170 (2010) 224–229 Contents lists available at ScienceDirect Veterinary Parasitology journal homepage: www.elsevier.com/locate/vetpar Anthelmintic resistance of Ostertagia ostertagi and Cooperia oncophora to macrocyclic lactones in cattle from the western United States M.D. Edmonds, E.G. Johnson, J.D. Edmonds ∗ Johnson Research LLC, 24007 Highway 20-26, Parma, ID, 83660, USA article info abstract Article history: In June 2008, 122 yearling heifers with a history of anthelmintic resistance were obtained Received 15 October 2009 from pastures in northern California and transported to a dry lot facility in southwest- Received in revised form 28 January 2010 ern Idaho, USA. Fifty heifers with the highest fecal egg counts were selected for study Accepted 24 February 2010 enrollment. Candidates were equally randomized to treatment with either injectable iver- mectin (Ivomec®, Merial, 0.2 mg kg−1 BW), injectable moxidectin (Cydectin®, Fort Dodge, Keywords: 0.2 mg kg−1 BW), oral fenbendazole (Safe-Guard®, Intervet, 5.0 mg kg−1 BW), oral oxfenda- Anthelmintic resistance zole (Synanthic®, Fort Dodge, 4.5 mg kg−1 BW), or saline. At 14 days post-treatment, Cattle Bovine nematodes were recovered from the abomasum, small intestine, and large intestine. Par- Nematodes asitism was confirmed in the control group when 10/10 animals were infected with Efficacy adult Ostertagia ostertagi and 9/10 animals with both developing and early L4 stages of Cooperia O. ostertagi. Similarly, 9/10 animals were parasitized with adult Cooperia spp. Fenbenda- Ostertagia zole and oxfendazole efficacy verses controls were >90% against adult Cooperia spp., while moxidectin caused an 88% parasite reduction post-treatment (P < 0.05). -
Evolution and Biogeography of Haemonchus Contortus: Linking Faunal Dynamics in Space and Time
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DigitalCommons@University of Nebraska University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Department of Agriculture: Agricultural Publications from USDA-ARS / UNL Faculty Research Service, Lincoln, Nebraska 2016 Evolution and Biogeography of Haemonchus contortus: Linking Faunal Dynamics in Space and Time Eric P. Hoberg Agricultural Research Service, USDA, [email protected] D.S. Zarlenga Agricultural Research Service, USDA Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub Hoberg, Eric P. and Zarlenga, D.S., "Evolution and Biogeography of Haemonchus contortus: Linking Faunal Dynamics in Space and Time" (2016). Publications from USDA-ARS / UNL Faculty. 2243. https://digitalcommons.unl.edu/usdaarsfacpub/2243 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. CHAPTER ONE Evolution and Biogeography of Haemonchus contortus: Linking Faunal Dynamics in Space and Time E.P. Hoberg*,1, D.S. Zarlengax *US National Parasite Collection and Animal Parasitic Disease Laboratory, Agricultural Research Service, USDA, Beltsville, MD, United States x Animal Parasitic Disease Laboratory, Agricultural Research Service, USDA, Beltsville, MD, United States 1Corresponding author: E-mail: [email protected] Contents 1. Introduction 2 2. Haemonchus: History and Biodiversity 3 3. Phylogeny and Biogeography: Out of Africa 4 4. Domestication, Geographical Expansion and Invasion 7 5. -
Vitro Exposure to Ivermectin and Levamisole on the Expression Patterns of ABC Transporters in Haemonchus Contortus Larvae
International Journal for Parasitology: Drugs and Drug Resistance 6 (2016) 103e115 Contents lists available at ScienceDirect International Journal for Parasitology: Drugs and Drug Resistance journal homepage: www.elsevier.com/locate/ijppaw Effects of in vitro exposure to ivermectin and levamisole on the expression patterns of ABC transporters in Haemonchus contortus larvae * Ali Raza a, b, Steven R. Kopp b, Neil H. Bagnall a, Abdul Jabbar c, Andrew C. Kotze a, a CSIRO Agriculture, Queensland Bioscience Precinct, University of Queensland, Brisbane, Australia b School of Veterinary Science, University of Queensland, Gatton, Australia c Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria, Australia article info abstract Article history: This study investigated the interaction of ATP binding cassette (ABC) transport proteins with ivermectin Received 15 October 2015 (IVM) and levamisole (LEV) in larvae of susceptible and resistant isolates of Haemonchus contortus in vitro Received in revised form by measuring transcription patterns following exposure to these anthelmintics. Furthermore, we studied 21 March 2016 the consequences of drug exposure by measuring the sensitivity of L to subsequent exposure to higher Accepted 22 March 2016 3 drug concentrations using larval migration assays. The most highly transcribed transporter genes in both Available online 23 March 2016 susceptible and resistant L3 were pgp-9.3, abcf-1, mrp-5, abcf-2, pgp-3, and pgp-10. The resistant isolate showed significantly higher transcription of pgp-1, pgp-9.1 and pgp-9.2 compared to the susceptible Keywords: fi ABC transporters isolate. Five P-gp genes and the haf-6 gene showed signi cantly higher transcription (up to 12.6-fold) fi Anthelmintics after 3 h exposure to IVM in the resistant isolate. -
Ostertagia Ostertagi Excretory-Secretory Products
Academic Year 2007-2008 Laboratory for Parasitology Department of Virology, Parasitology and Immunology Ghent University – Faculty of Veterinary Medicine Study of Ostertagia ostertagi excretory-secretory products Heidi Saverwyns Proefschrift voorgelegd aan de faculteit Diergeneeskunde tot het behalen van de graad van Doctor in de Diergeneeskundige Wetenschappen Promotoren: Prof. Dr. E. Claerebout en Dr. P. Geldhof Het heeft wel eventjes geduurd, maar nu is het zover. Veel mensen hebben de afgelopen jaren direct of indirect hun medewerking verleend aan het tot stand komen van dit proefschrift. Een aantal van hen wil ik hier persoonlijk bedanken. In eerste instantie wens ik Prof dr. Jozef Vercuysse en mijn promotor Prof. Dr. Edwin Claerebout te bedanken omdat jullie mij de kans boden om op het labo Parasitologie te doctoreren. Jullie deur stond altijd open zowel in goede tijden als in slechte tijden. Bedankt voor alles!! Peter, nog maar pas terug uit Moredun en vervolgens gebombardeerd tot mijn promotor. Jouw hulp was onmisbaar bij het vervolledigen van dit proefschrift. Hopelijk heb je niet te veel fietsuren moeten missen door de ontelbare corrigeersessies. Denk vooral aan die ‘oh zo leuke bureau momenten’ wanneer we samen neurieden op mijn nieuwste ringtone. Dr. Marc Fransen, bedankt voor alle hulp en goede tips wanneer mijn fagen niet deden wat van hen verwacht werd. Natuurlijk wil ik u ook bedanken voor het gedetailleerd en supersnel nalezen van dit proefschrift! Isabel, jouw hersenspinsels (neergepend in een FWO aanvraag) betekenden het startsignaal van een wilde rit op het faagdisplay rad. Je hebt ons reeds enkele jaren geleden verlaten, desalniettemin was je direct bereid om in mijn leescommissie te zetelen. -
Nematodirus Spathiger of Small Ruminants Guang-Hui Zhao1*†, Yan-Qing Jia1†, Wen-Yu Cheng1, Wen Zhao1, Qing-Qing Bian1 and Guo-Hua Liu2*
Zhao et al. Parasites & Vectors 2014, 7:319 http://www.parasitesandvectors.com/content/7/1/319 RESEARCH Open Access Characterization of the complete mitochondrial genomes of Nematodirus oiratianus and Nematodirus spathiger of small ruminants Guang-Hui Zhao1*†, Yan-Qing Jia1†, Wen-Yu Cheng1, Wen Zhao1, Qing-Qing Bian1 and Guo-Hua Liu2* Abstract Background: Nematodirus spp. are among the most common nematodes of ruminants worldwide. N. oiratianus and N. spathiger are distributed worldwide as highly prevalent gastrointestinal nematodes, which cause emerging health problems and economic losses. Accurate identification of Nematodirus species is essential to develop effective control strategies for Nematodirus infection in ruminants. Mitochondrial DNA (mtDNA) could provide powerful genetic markers for identifying these closely related species and resolving phylogenetic relationships at different taxonomic levels. Methods: In the present study, the complete mitochondrial (mt) genomes of N. oiratianus and N. spathiger from small ruminants in China were obtained using Long-range PCR and sequencing. Results: The complete mt genomes of N. oiratianus and N. spathiger were 13,765 bp and 13,519 bp in length, respectively. Both mt genomes were circular and consisted of 36 genes, including 12 genes encoding proteins, 2 genes encoding rRNA, and 22 genes encoding tRNA. Phylogenetic analyses based on the concatenated amino acid sequence data of all 12 protein-coding genes by Bayesian inference (BI), Maximum likelihood (ML) and Maximum parsimony (MP) showed that the two Nematodirus species (Molineidae) were closely related to Dictyocaulidae. Conclusions: The availability of the complete mtDNA sequences of N. oiratianus and N. spathiger not only provides new mtDNA sources for a better understanding of nematode mt genomics and phylogeny, but also provides novel and useful genetic markers for studying diagnosis, population genetics and molecular epidemiology of Nematodirus spp. -
The Role of Carbon Dioxide in Nematode Behaviour and Physiology Cambridge.Org/Par
Parasitology The role of carbon dioxide in nematode behaviour and physiology cambridge.org/par Navonil Banerjee and Elissa A. Hallem Review Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA, USA Cite this article: Banerjee N, Hallem EA Abstract (2020). The role of carbon dioxide in nematode behaviour and physiology. Parasitology 147, Carbon dioxide (CO2) is an important sensory cue for many animals, including both parasitic 841–854. https://doi.org/10.1017/ and free-living nematodes. Many nematodes show context-dependent, experience-dependent S0031182019001422 and/or life-stage-dependent behavioural responses to CO2, suggesting that CO2 plays crucial roles throughout the nematode life cycle in multiple ethological contexts. Nematodes also Received: 11 July 2019 show a wide range of physiological responses to CO . Here, we review the diverse responses Revised: 4 September 2019 2 Accepted: 16 September 2019 of parasitic and free-living nematodes to CO2. We also discuss the molecular, cellular and First published online: 11 October 2019 neural circuit mechanisms that mediate CO2 detection in nematodes, and that drive con- text-dependent and experience-dependent responses of nematodes to CO2. Key words: Carbon dioxide; chemotaxis; C. elegans; hookworms; nematodes; parasitic nematodes; sensory behaviour; Strongyloides Introduction Author for correspondence: Carbon dioxide (CO2) is an important sensory cue for animals across diverse phyla, including Elissa A. Hallem, E-mail: [email protected] Nematoda (Lahiri and Forster, 2003; Shusterman and Avila, 2003; Bensafi et al., 2007; Smallegange et al., 2011; Carrillo and Hallem, 2015). While the CO2 concentration in ambient air is approximately 0.038% (Scott, 2011), many nematodes encounter much higher levels of CO2 in their microenvironment during the course of their life cycles. -
P-Glycoprotein Drug Transporters in the Parasitic Nematodes Toxocara Canis and Parascaris
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2019 P-glycoprotein drug transporters in the parasitic nematodes Toxocara canis and Parascaris Jeba Rose Jennifer Jesudoss Chelladurai Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Parasitology Commons, and the Veterinary Medicine Commons Recommended Citation Jesudoss Chelladurai, Jeba Rose Jennifer, "P-glycoprotein drug transporters in the parasitic nematodes Toxocara canis and Parascaris" (2019). Graduate Theses and Dissertations. 17707. https://lib.dr.iastate.edu/etd/17707 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. P-glycoprotein drug transporters in the parasitic nematodes Toxocara canis and Parascaris by Jeba Rose Jennifer Jesudoss Chelladurai A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Veterinary Pathology (Veterinary Parasitology) Program of Study Committee: Matthew T. Brewer, Major Professor Douglas E. Jones Richard J. Martin Jodi D. Smith Tomislav Jelesijevic The student author, whose presentation of the scholarship herein was approved by the program of study committee, is solely responsible for the content of this dissertation. The Graduate College will ensure this dissertation is globally accessible and will not permit alterations after a degree is conferred. Iowa State University Ames, Iowa 2019 Copyright © Jeba Rose Jennifer Jesudoss Chelladurai, 2019.