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Abstract

Infections in cattle with the gastric nematode Ostertagia ostertagi are associated with decreased acid secretion and profound physio-morphological changes of the gastric mucosa. The purpose of the current study was to investigate the mechanisms triggering these pathophysiological changes. O....

Author(s)
Mihi, B.; Meulder, F. van; Rinaldi, M.; Coppernolle, S. van; Chiers, K.; Broeck, W. van den; Goddeeris, B.; Vercruysse, J.; Claerebout, E.; Geldhof, P.
Publisher
BioMed Central Ltd, London, UK
Citation
Veterinary Research, 2013, 44, 121, pp (11 December 2013)
Abstract

In this study, we isolated and analysed a small heat shock protein (HSP) of Ostertagia ostertagi (Oo-HSP18). Oo-hsp18 is encoded by a single-copy gene and the full-length cDNA represents an 18-kDa protein. The expression of Oo-hsp18 is highly stage specific and restricted to the adult stage. The...

Author(s)
Vercauteren, I.; Maere, V. de; Vercruysse, J.; Stevens, M.; Gevaert, K.; Claerebout, E.
Publisher
American Society of Parasitologists, Lawrence, USA
Citation
Journal of Parasitology, 2006, 92, 6, pp 1244-1250
Abstract

Protease inhibitors are thought to protect intestinal parasitic nematodes from their hostile proteolytic environment. In a previous study, screening of Ostertagia ostertagi cDNA libraries with local antibody probes of the abomasal lymph nodes and mucus revealed a (28 kDa) aspartyl protease...

Author(s)
Maere, V. de; Vercauteren, I.; Gevaert, K.; Vercruysse, J.; Claerebout, E.
Publisher
Elsevier, Oxford, UK
Citation
Molecular and Biochemical Parasitology, 2005, 141, 1, pp 81-88
Abstract

Host tissue penetration, feeding and immune evasion by helminth parasites may be mediated by both mechanical processes and histolytic products released by the parasite. To investigate potential histolytic products released during in vitro maintenance of exsheathed 3rd (L3) and 4th (L4) stage larvae ...

Author(s)
Geldhof, P.; Claerebout, E.; Knox, D. P.; Agneessens, J.; Vercruysse, J.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Parasitology, 2000, 121, 6, pp 639-647
Abstract

Two group of calves, 36 Holstein cross-bred bull and 36 heifer calves (aged 6-8 months) were each divided into 6 groups of 6, in Belgium [date not given]. In both main groups, calves in the first control group (C1) and first treated group (T1) received a daily infection of 200 L3 of O. ostertagi...

Author(s)
Vercruysse, J.; Claerebout, E.; Dorny, P.; Demeulenaere, D.; Agneessens, J.; Smets, K.
Citation
Veterinary Record, 1998, 143, 16, pp 443-446
Abstract

The importance of L3, L4 and adult stages of Mecistocirrus digitatus in inducing resistance to reinfection was examined in 3 groups of 5 calves (A, B, C) which were immunized for 2 consecutive days with a daily dose of 20 000 M. digitatus infective larvae. Group A was treated with ivermectin at 7...

Author(s)
Aken, D. van; Vercruysse, J.; Dargantes, A.; Valdez, L.; Flores, A.; Shaw, D. J.
Citation
Parasitology, 1998, 117, 1, pp 83-87
Abstract

The relative contribution of the 3rd (L3), 4th (L4) and adult stages of O. ostertagi to the development of immunity was assessed in calves which were either continuously infected during 21 weeks or subjected to infections truncated by anthelmintic treatment at the L3 or L4 stage. A 4th group...

Author(s)
Claerebout, E.; Hilderson, H.; Meeus, P.; Marez, T. de; Behnke, J.; Huntley, J.; Vercruysse, J.
Citation
Veterinary Parasitology, 1996, 66, 3/4, pp 225-239
Abstract

Antigenic differences between the developmental stages of O. ostertagi were studied by SDS-PAGE and Western blotting. Gel electrophoresis showed a complex protein pattern different for every stage with the O. ostertagi fourth stage larvae (L4) showing an intermediate protein pattern between the...

Author(s)
Hilderson, H.; Graaf, D. C. de; Vercruysse, J.; Berghen, P.
Citation
Research in Veterinary Science, 1993, 55, 2, pp 203-208
Abstract

The influence of different levels of infection with O. ostertagi on the development of a protective immune response in calves was investigated. Four groups of calves were infected with either 5000 (Group A), 10 000 (Group B), 20 000 (Group C) or 40 000 (Group D) infective larvae (O. ostertagi L3)...

Author(s)
Hilderson, H.; Vercruysse, J.; Graaf, D. C. de; Bastiaensen, P.; Fransen, J.; Berghen, P.
Citation
Veterinary Parasitology, 1993, 47, 3-4, pp 255-266
Abstract

The antigenic differences among the life cycle stages of C. oncophora were studied by SDS-gel electrophoresis and Western blotting. Sodium dodecylsulphate polyacrylamide gel electrophoresis of the different life cycle stage of C. oncophora revealed a complex protein pattern with a decreasing number ...

Author(s)
Graaf, D. C. de; Hilderson, H.; Berghen, P.; Vercruysse, J.
Citation
Research in Veterinary Science, 1992, 53, 3, pp 390-392

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