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8 results on '"Brett Tennent-Brown"'

1. Egg reappearance periods of anthelmintics against equine cyathostomins: The state of play revisited

Author

Stephanie L. Macdonald, Ghazanfar Abbas, Abdul Ghafar, Charles G. Gauci, Jenni Bauquier, Charles El-Hage, Brett Tennent-Brown, Edwina J.A. Wilkes, Anne Beasley, Caroline Jacobson, Lucy Cudmore, Peter Carrigan, John Hurley, Ian Beveridge, Kristopher J. Hughes, Martin K. Nielsen, and Abdul Jabbar

Subjects
Pharmacology, Regular article, Infectious Diseases, Pharmacology (medical), Parasitology
Abstract

Cyathostomins are the most common and highly prevalent parasites of horses worldwide. Historically, the control of cyathostomins has mainly relied on the routine use of anthelmintic products. Increasing reports on anthelmintic resistance (AR) in cyathostomins are concerning. A potential method proposed for detecting emerging AR in cyathostomins has been estimating the egg reappearance period (ERP). This paper reviews the data available for the ERP of cyathostomins against the three major classes of anthelmintics, macrocyclic lactones, tetrahydropyrimidines, and benzimidazoles. Published peer-reviewed original research articles were obtained from three databases (PubMed, CAB Direct and Web of Science) and were evaluated for their inclusion in a systematic review. Subsets of articles were then subjected to a review of ERP data. A total of 54 (of 134) studies published between 1972 and 2022 met the criteria for inclusion in the systematic review. Until the beginning of 2022, there was no agreed definition of the ERP; eight definitions of ERP were identified in the literature, complicating the comparison between studies. Additionally, potential risk factors for the shortening of the ERP, including previous anthelmintic use and climate, were frequently not described. Reports of shortened ERP for moxidectin and ivermectin are frequent: 20 studies that used comparable ERP definitions reported shortened moxidectin and ivermectin ERPs of 35 and 28 days, respectively. It is unclear whether the ERPs of these anthelmintics reduced to such levels are due to the development of AR or some biological factors related to horses, cyathostomin species, and/or the environment. The ERPs for other anthelmintics, such as fenbendazole and pyrantel, were frequently not reported due to established resistance against these drugs. Future research in horses is required to understand the mechanism(s) behind the shortening of ERP for cyathostomins. Based on this systematic review, we propose recommendations for future ERP studies.

Published
2023

2. Molecular diagnostics for gastrointestinal helminths in equids: Past, present and future

Author

Abdul Ghafar, Ghazanfar Abbas, Anne Beasley, Jenni Bauquier, Edwina J.A. Wilkes, Caroline Jacobson, Emma McConnell, Charles El-Hage, Peter Carrigan, Lucy Cudmore, Brett Tennent-Brown, John Hurley, Martin K. Nielsen, Charles G. Gauci, Ian Beveridge, Kristopher J. Hughes, and Abdul Jabbar

Subjects
Anthelmintics, Strongyloidea, Strongylus, General Veterinary, Helminths, Animals, Parasitology, Horse Diseases, General Medicine, Horses, Pathology, Molecular
Abstract

This review is aimed to (i) appraise the literature on the use of molecular techniques for the detection, quantification and differentiation of gastrointestinal helminths (GIH) of equids, (ii) identify the knowledge gaps and, (iii) discuss diagnostic prospects in equine parasitology. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for systematic reviews, we retrieved 54 studies (horses: 50/54; donkeys and zebras: 4/54) from four databases. Polymerase chain reaction (PCR) was employed in all of the studies whereas PCR amplicons were sequenced in only 18 of them. Other techniques used (including modifications of PCR) were reverse line blot, quantitative (q)PCR, restriction fragment length polymorphism, nested-PCR, PCR-directed next-generation sequencing, Southern blotting, single strand conformation polymorphism, PCR-enzyme linked immunosorbent assay, matrix-assisted laser desorption/ionisation-time of flight and random amplification of polymorphic DNA. Most of the studies (53/54) used nuclear ribosomal RNA (including the internal transcribed spacers, intergenic spacer, 5.8 S, 18 S, 28 S and 12 S) as target loci while cytochrome c oxidase subunit 1 and random genomic regions were targeted in only three and one studies, respectively. Overall, to date, the majority of molecular studies have focused on the diagnosis and identification of GIHs of equids (i.e. species of Anoplocephala, Craterostomum, cyathostomins, Oesophagodontus, Parascaris, Strongylus, Strongyloides and Triodontophorus), with a recent shift towards investigations on anthelmintic resistance and the use of high-throughput nemabiome metabarcoding. With the increasing reports of anthelmintic resistance in equid GIHs, it is crucial to develop and apply techniques such as advanced metabarcoding for surveillance of parasite populations in order to gain detailed insights into their diversity and sustainable control. To the best of our knowledge, this is the first systematic review that evaluates molecular investigations published on the diagnosis and quantification of equid GIHs and provides useful insights into important knowledge gaps and future research directions in equid molecular parasitology.

Published
2022

3. Diseases of the Respiratory System

Author

Pamela A. Wilkins, Kara M. Lascola, Amelia R. Woolums, Daniela Bedenice, Steeve Giguère, Ashley G. Boyle, Bettina Dunkel, Kurt J. Williams, Gabriele A. Landolt, Scott M. Austin, Dorothy M. Ainsworth, Faisal Ghazi Habasha, Kenneth W. Hinchcliff, Fabio Del Piero, John R. Pascoe, Safia Z. Barakzai, Santiago D. Gutierrez-NIbeyro, Padraic Martin Dixon, Ben Buchanan, Brett Tennent-Brown, Peggy S. Marsh, W. Ray Waters, Jeanne Lofstedt, Emily John, Dwight D. Bowman, Allison Jean Stewart, Andrew W. Van Eps, Melissa Mazan, and Gretchen P. Grissett

Published
2020

4. Contributors

Author

Dorothy M. Ainsworth, Monica Aleman, John A. Angelos, Luis G. Arroyo, Scott M. Austin, Jane E. Axon, Lora Rickard Ballweber, Danika L. Bannasch, Safia Z. Barakzai, Emily A. Barrell, George M. Barrington, Michelle H. Barton, Dale E. Bauman, Erin McConachie Beasley, Daniela Bedenice, Catherine J. Benson, Dionne Benson, Caroline M. Betbeze, Danelle A. Bickett-Weddle, Anthony T. Blikslager, Andrea A. Bohn, Angela I. Bordin, Dwight D. Bowman, Ashley G. Boyle, Rana Bozorgmanesh, Barry J. Bradford, Babetta Breuhaus, Steven P. Brinsko, Nimet Browne, Ben Buchanan, Sébastien Buczinski, Alexandra J. Burton, Erin N. Burton, Stacey R. Byers, Barbara A. Byrne, David P. Byrne, Robert J. Callan, Canaan Whitfield Cargile, Gary P. Carlson, Elizabeth A. Carr, Renee T. Carter, Stan W. Casteel, M. Keith Chaffin, Berkley Chesen, Munashe Chigerwe, Bruce W. Christensen, Gemma Chuck, Kristin A. Clothier, Johann (Hans) F. Coetzee, Michelle C. Coleman, Robert J. Collier, Victor S. Cortese, Lais R. Costa, Beate M. Crossley, Jennifer L. Davis, Melody Anne de Laat, Fabio Del Piero, André Desrochers, Padraic Martin Dixon, Charles C. Dodd, Brandon J. Dominguez, Vincent Dore, Gerald E. Duhamel, Bettina Dunkel, Jack Easley, Kari J. Ekenstedt, John A. Ellis, Pablo Espinosa-Mur, Ronald J. Erskine, Krista E. Estell, Timothy J. Evans, Darien Feary, Gilles Fecteau, Marie-Eve Fecteau, M. Julia B. Felippe, C. Langdon Fielding, Carrie J. Finno, Sherrill A. Fleming, David Francoz, Nicholas Frank, Robert W. Fulton, Lisa E. Fultz, Tam Garland, Franklyn Garry, Anne J. Gemensky-Metzler, Philippa Gibbons, Steeve Giguère, Sandra Godden, Jesse Paul Goff, Kathleen Casey Gonda, Liara M. Gonzalez, Gretchen P. Grissett, Alison A. Gunn, Santiago D. Gutierrez-Nibeyro, Faisal Ghazi Habasha, Tiffany L. Hall, Spring K. Halland, Gayle D. Hallowell, Joanne Hardy, Kelsey A. Hart, Amanda K. Hartnack, Daniel A. Heinrich, Meera Heller, Troy Herthel, Sharon K. Hietala, Kenneth W. Hinchcliff, Melissa T. Hines, John K. House, Lynn R. Hovda, Angela M. Hughes, Pamela J. Hullinger, Alexandra Hund, David J. Hurley, Robert E. James, Emily John, Jennifer L. Johns, Philip J. Johnson, Meredyth L. Jones, Samuel L. Jones, Will C. Jordan, Carter E. Judy, Scott A. Katzman, Claudia Klein, Amanda J. Kreuder, Jeffrey Lakritz, Benjamin Landers, Gabriele A. Landolt, Kara M. Lascola, Mary Elizabeth Lassaline, Richard Andrew LeCouteur, Guy D. Lester, Christian M. Leutenegger, Michelle Linton, Jeanne Lofstedt, Ricardo Loinaz, Evelyn MacKay, Robert J. MacKay, N. James Maclachlan, John E. Madigan, K. Gary Magdesian, Muhammad Muzafar Makhdoomi, John B. Malone, Peggy S. Marsh, John F. Marshall, Krysta Martin, Christie E. Mayo, Melissa Mazan, Jessica A. McArt, Craig McConnel, Karen McDowell, Dianne McFarlane, Jodi L. McGill, Cathy McGowan, Sheila M. McGuirk, Bret R. McNabb, John R. Middleton, Suzanne T. Millman, Paul S. Morley, Derek A. Mosier, Michelle Mostrom, T.G. Nagaraja, Sylvain Nichols, Martin K. Nielsen, Tracy E. Norman, Jeffrey W. Norris, Daryl Nydam, Olimpo Oliver-Espinosa, Steven M. Parish, John R. Pascoe, Michael Payne, Caryn E. Plummer, Paul J. Plummer, Robert H. Poppenga, Shannon E. Pratt-Philips, Birgit Puschner, Nicola Pusterla, Virginia B. Reef, David G. Renter, Sarah M. Reuss, James P. Reynolds, Juan E. Romano, Sr., Pamela L. Ruegg, Robert Bascom Sager, Sarah N. Sampson, Chris Sanchez, Montague N. Saulez, Harold C. Schott, Leslie C. Sharkey, Jan K. Shearer, JoAnn Slack, Bradford P. Smith, Geoffrey W. Smith, Rachael L. Smith, Sharon Jane Spier, Brett A. Sponseller, Henry Stämpfli, Guy St. Jean, Allison Jean Stewart, Raymond W. Sweeney, Tamara M. Swor, Jared D. Taylor, Lisa A. Tell, Brett Tennent-Brown, Ronald L. Terra, Alain P. Théon, Joy E. Tomlinson, Ramiro E. Toribio, Mats H.T. Troedsson, Travis M. Tull, Francisco A. Uzal, Stephanie J. Valberg, Sarel R. Van Amstel, Andrew W. Van Eps, David C. Van Metre, Dickson D. Varner, Meredith L. Voyles, Kristina R. Vygantas, Paul Walz, Kevin Washburn, W. Ray Waters, Jeffrey P. Watkins, Johanna L. Watson, Ashlee E. Watts, J. Scott Weese, Maurice Edward White, Stephen D. White, Pamela A. Wilkins, Jarred Williams, Kurt J. Williams, W. David Wilson, Elizabeth M. Woodward, Amelia R. Woolums, and Kathryn L. Wotman

Published
2020

5. Contributors

Author

Katie S. Amend, C. Scott Bailey, Heidi Banse, Robert M. Baratt, Anne Barger, Michelle Henry Barton, Lance H. Bassage, Brenda T. Beerntsen, Alicia L. Bertone, Eric K. Birks, Karyn Bischoff, Karen Blissitt, John D. Bonagura, Melissa Bourgeois, Jennifer A. Brown, Jason W. Brumitt, Jeffrey N. Bryan, Rikke Buhl, Daniel J. Burke, Melinda S. Camus, Igor Frederico Canisso, Kelly L. Carlson, James L. Carmalt, Leeah R. Chew, Cameon M. Childers, Michelle Cora, Lais R.R. Costa, Marco A. Coutinho da Silva, Gabriel Borges Couto, Laura C. Cregar, Antonio M. Cruz, John J. Dascanio, Elizabeth J. Davidson, Heather Davis, Mary S. DeLorey, Catherine A. DeLuca, Shane F. DeWitt, Monica Dias Figueiredo, Mouhamadou K. Diaw, Roberta Di Terlizzi, Patricia M. Dowling, Norm G. Ducharme, Ghislaine Dujovne, Mary M. Durando, Steven Duren, Edward T. Earley, Sarah E. Eaton, Randy Eggleston, Johanna Elfenbein, Steve Ensley, Kira L. Epstein, Tim J. Evans, Kelly Farnsworth, Maria S. Ferrer, Ryan A. Ferris, Janean L. Fidel, José M. García-López, Bridget C. Garner, Cynthia L. Gaskill, Mathew P. Gerard, Liberty M. Getman, Brian C. Gilger, Lyndi L. Gilliam, Shir Gilor, Elizabeth A. Giuliano, Sara Gomez-Ibanez, Patty Graham-Thiers, François-Xavier Grand, Britton Grasperge, Tanya M. Grondin, Erin S. Groover, Alisha M. Gruntman, Sharon Gwaltney-Brant, R. Reid Hanson, Kelsey A. Hart, Kevin K. Haussler, Jan F. Hawkins, Shelby Hayden, Jonathan Hayles, Don Henneke, Christina Hewes, Sara A. Hill, Melissa T. Hines, Siddra Hines, Brent Hoff, Andrew M. Hoffmann, Rhonda M. Hoffman, Gilbert Reed Holyoak, Amanda Martabano House, Samuel D.A. Hurcombe, Paula M. Imerman, Florien Jenner, Sophy A. Jesty, Aime K. Johnson, Philip J. Johnson, Kelly L. Kalf, Andris J. Kaneps, Chris Kawcak, Kevin Keegan, Alana King, Anthony P. Knight, Joanne Kramer, Paula M. Krimer, Laura V. Lane, Kara M. Lascola, Laurie M. Lawrence, Rejean Cléophas Lefebvre, Alfredo Sanchez Londoño, Maureen T. Long, Charles C. Love, Tim Mair, Chelsea Makloski, John S. Mattoon, Melissa R. Mazan, Hernán J. Montilla, Sandra E. Morgan, Peter R. Morresey, Michelle S. Mostrom, Amelia Munsterman, Lisa A. Murphy, Mike Murphy, Dana A. Neelis, Rose Nolen-Walston, Joan Norton, Yvette S. Nout, Nicole H. Passler, Julia A. Paxson, Erwin G. Pearson, Lisa K. Pearson, Alessandra Pellegrini-Masini, Annette Petersen, Nelson I. Pinto, Ida Piperisova, Tracy Plough, Sarah M. Puchalski, Birgit Puschner, Ignacio Raggio, Merl F. Raisbeck, Stephen M. Reed, Thomas J. Reilly, Janelle S. Renschler, Theresa E. Rizzi, Gregory D. Roberts, Jacobo S. Rodriguez, Angela B. Royal, Juan C. Samper, Francesca Sampieri, Elizabeth M. Santschi, Maria Clara Sardoy, Swanand R. Sathe, Susan Schommer, John Schumacher, Colin C. Schwarzwald, Olga Seco Diaz, Kathy K. Seino, Debra C. Sellon, Kim A. Selting, David Senter, Ceri Sherlock, Paul D. Siciliano, Phoebe A. Smith, Laura Ann Snyder, Ted S. Stashak, Allison J. Stewart, Carolyn L. Stull, Kenneth E Sullins, W. Wesley Sutter, Jennifer Taintor, Patricia A. Talcott, Brett Tennent-Brown, Christine Théorêt, Ahmed Tibary, Peter J. Timoney, Ian Tizard, Ramiro E. Toribio, Chelsea D. Tripp, Mats H.T. Troedsson, Beth A. Valentine, Gunther van Loon, Karsten Velde, Dawna L. Voelkl, Bryan M. Waldridge, Lori K. Warren, Kimberly Weber, Marlyn S. Whitney, Charles Wiedmeyer, Robyn R. Wilborn, Pamela Wilkins, Tom Wilkinson, Carey A. Williams, Jarred Williams, Christine L. Wimer, L. Nicki Wise, and Lesley E. Young

Published
2012

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