World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
32
Citations
4088
World Ranking
2118
National Ranking
10

Overview

Guillermo Virkel is affiliated with the National University of Central Buenos Aires in Argentina. Their research primarily spans the fields of Agricultural and Biological Sciences and Veterinary science, with a particular focus on parasitology and small animal studies.

The scientist has contributed extensively to the understanding and control of helminth infections and parasite-host interactions. Their work encompasses pharmacogenetics and drug metabolism, parasite biology with host interactions, animal nutrition and physiology, pesticide exposure and toxicity, and insect and pesticide research.

Frequent publication venues for their research include Veterinary Parasitology, Animals, Research in Veterinary Science, Ticks and Tick-borne Diseases, and Frontiers in Veterinary Science.

Guillermo Virkel has collaborated extensively with several co-authors, including A. Lifschitz, María Victoria Miró, Carlos Lanusse, Paula Ichinose, and Karen Larsen.

Representative recent papers authored by or involving the scientist include:

  • Combination of cypermethrin and thymol for control of Rhipicephalus microplus: Efficacy evaluation and description of an action mechanism (2021), published in Ticks and Tick-borne Diseases
  • Combination of bioactive phytochemicals and synthetic anthelmintics: In vivo and in vitro assessment of the albendazole-thymol association (2020), published in Veterinary Parasitology
  • Plant-Derived Compounds as a Tool for the Control of Gastrointestinal Nematodes: Modulation of Abamectin Pharmacological Action by Carvone (2020), published in Frontiers in Veterinary Science
  • Combined moxidectin-levamisole treatment against multidrug-resistant gastrointestinal nematodes: A four-year efficacy monitoring in lambs (2021), published in Veterinary Parasitology
  • Phytochemicals in Gastrointestinal Nematode Control: Pharmacokinetic-Pharmacodynamic Evaluation of the Ivermectin plus Carvone Combination (2023), published in Animals

Best Publications

  • Comparative plasma disposition kinetics of ivermectin, moxidectin and doramectin in cattle

    C Lanusse;A Lifschitz;G Virkel;L Alvarez

  • Understanding triclabendazole resistance.

    G. P. Brennan;I. Fairweather;A. Trudgett;E. Hoey

  • Comparative distribution of ivermectin and doramectin to parasite location tissues in cattle.

    A Lifschitz;G Virkel;J Sallovitz;J.F Sutra

  • Combined use of ivermectin and triclabendazole in sheep: In vitro and in vivo characterisation of their pharmacological interaction

    Adrian Luis Lifschitz;Guillermo Leon Virkel;Guillermo Leon Virkel;Mariana Ballent;Mariana Ballent;Juan Manuel Sallovitz

  • Ivermectin disposition kinetics after subcutaneous and intramuscular administration of an oil-based formulation to cattle.

    A. Lifschitz;G. Virkel;A. Pis;F. Imperiale

  • Effects of sub-lethal exposure of rats to the herbicide glyphosate in drinking water: glutathione transferase enzyme activities, levels of reduced glutathione and lipid peroxidation in liver, kidneys and small intestine.

    Karen Elizabeth Larsen;Roberto Najle;Adrian Luis Lifschitz;Guillermo Leon Virkel

  • Strategies to Optimize the Efficacy of Anthelmintic Drugs in Ruminants

    Carlos Lanusse;Candela Canton;Guillermo Virkel;Luis Alvarez

  • Altered drug influx/efflux and enhanced metabolic activity in triclabendazole-resistant liver flukes.

    L. I. Alvarez;H. D. Solana;M. L. Mottier;G. L. Virkel

  • MODULATION OF THE P-GLYCOPROTEIN-MEDIATED INTESTINAL SECRETION OF IVERMECTIN: IN VITRO AND IN VIVO ASSESSMENTS

    Mariana Ballent;Adrian Luis Lifschitz;Guillermo Leon Virkel;Juan Manuel Sallovitz

  • Comparative tissue pharmacokinetics and efficacy of moxidectin, abamectin and ivermectin in lambs infected with resistant nematodes: Impact of drug treatments on parasite P-glycoprotein expression

    Mercedes Lloberas;Luis Alvarez;Carlos Entrocasso;Guillermo Virkel

  • Persistence of ivermectin in plasma and faeces following administration of a sustained-release bolus to cattle.

    M Alvinerie;J.F Sutra;P Galtier;A Lifschitz

  • Ivermectin (3.15%) long-acting formulations in cattle: Absorption pattern and pharmacokinetic considerations

    Adrian Lifschitz;Guillermo Virkel;M. Ballent;Juan Manuel Sallovitz

  • COMPARATIVE HEPATIC AND EXTRAHEPATIC ENANTIOSELECTIVE SULFOXIDATION OF ALBENDAZOLE AND FENBENDAZOLE IN SHEEP AND CATTLE

    G. Virkel;A. Lifschitz;J. Sallovitz;A. Pis

  • Moxidectin in cattle: correlation between plasma and target tissues disposition.

    A Lifschitz;G Virkel;F Imperiale;J F Sutra

  • Clinical efficacy assessment of the albendazole-ivermectin combination in lambs parasitized with resistant nematodes.

    C. Entrocasso;L. Alvarez;L. Alvarez;J. Manazza;A. Lifschitz;A. Lifschitz

  • Bioequivalence of ivermectin formulations in pigs and cattle

    A Lifschitz;A Pis;L Alvarez;G Virkel

  • Measurement of ivermectin concentrations in target worms and host gastrointestinal tissues: influence of the route of administration on the activity against resistant Haemonchus contortus in lambs

    Maria Mercedes Lloberas;Luis Ignacio Alvarez;Carlos Entrocasso;Guillermo Leon Virkel

  • Breed differences on the plasma availability of moxidectin administered pour-on to calves.

    J. Sallovitz;A. Lifschitz;F. Imperiale;A. Pis

  • Interference with P-glycoprotein improves ivermectin activity against adult resistant nematodes in sheep

    A. Lifschitz;C. Entrocasso;L. Alvarez;M. Lloberas

  • Assessment of the main metabolism pathways for the flukicidal compound triclabendazole in sheep

    Guillermo Leon Virkel;Adrian Luis Lifschitz;Juan Manuel Sallovitz;Alejandra Pis

Frequent Co-Authors

Carlos Lanusse
Carlos Lanusse National University of Central Buenos Aires
Adrian Lifschitz
Adrian Lifschitz National University of Central Buenos Aires
Luis Alvarez
Luis Alvarez National University of Central Buenos Aires
J. Sallovitz
J. Sallovitz National Scientific and Technical Research Council
Michel Alvinerie
Michel Alvinerie INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Ian Fairweather
Ian Fairweather Queen's University Belfast
Jean-François Sutra
Jean-François Sutra INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Alan Trudgett
Alan Trudgett Queen's University Belfast
Anne Lespine
Anne Lespine Federal University of Toulouse Midi-Pyrénées
Timothy G. Geary
Timothy G. Geary McGill University

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