References of "Gabriel, Annick"
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See detailPhysiology of reproduction and endocrinology in cervids. A review
Drion, Pierre ULg; Hanzen, Christian ULg; Wirth, Delphine - in memoriam et al

in Annales de Médecine Vétérinaire (2003), 147(5), 291-313

Knowledge about cervids are rapidly growing. This work aims to present the more recent scientific information on reproductive physiology and endocrinology of the cervids: anatomy of the genital tract ... [more ▼]

Knowledge about cervids are rapidly growing. This work aims to present the more recent scientific information on reproductive physiology and endocrinology of the cervids: anatomy of the genital tract, length of breeding season, parameters and endocrinology of the reproductive cycle, endocrinology of pregnancy. It also aims to highlight differences between cervids and domestic ruminants such as embryonic diapause observed in Capreolus capreolus. [less ▲]

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See detailThe course of some bone remodelling plasma metabolites in healthy horses and in horses offered a calcium-deficient diet.
de Behr, V.; Daron, D.; Gabriel, Annick ULg et al

in Journal of Animal Physiology & Animal Nutrition (2003), 87(3-4), 149-59

An inquiry was carried out to assess the concentrations of plasma metabolites related to bone remodelling in 21 saddle horses of Warmblood breed aged 4-26 years, five draught horses of Ardennes breed aged ... [more ▼]

An inquiry was carried out to assess the concentrations of plasma metabolites related to bone remodelling in 21 saddle horses of Warmblood breed aged 4-26 years, five draught horses of Ardennes breed aged 4-10 years, and 10 Ardennes foals aged 9-11 months. They were fed according to normal feeding practice in Belgium. The changes in some bone remodelling plasma metabolite concentrations were studied when an unbalanced diet was offered and later corrected for four Warmblood horses. Bone formation was evaluated by bone alkaline phosphatase (BALP), total alkaline phosphatase (TALP) and osteocalcin (bone gla-protein, OC). Bone resorption was assessed by hydroxyproline (HYP). Total calcium, ionized calcium, phosphorus (P) and 25-hydroxyvitamin D3 [25-(OH)D] concentrations were more or less constant. The comparison of four bone remodelling factors between the Ardennes and Warmblood horses showed higher concentrations in the Ardennes breed. Bone marker concentrations decreased according to age. The correction of the unbalanced Ca : P diet induced inconsistent effects at plasma level. The interpretation of the different bone parameters appeared to be difficult if not associated with other parameters such as a complete anamnesis and clinical examination of the animal in addition to dietary evaluation. [less ▲]

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See detailPrélèvement de l’isthme encéphalique pour la recherche de l’encéphalopathie spongiforme transmissible chez le mouton
Gabriel, Annick ULg; Jacobs, Christine ULg; Simoens, P.

in Annales de Médecine Vétérinaire (2002), 146(5), 295-300

Depuis le premier avril 2002, une directive de l'Union Européenne contraint la Belgique à tester les chèvres et les moutons, en plus des bovins, dans le cadre de la recherche d'encéphalopathie spongiforme ... [more ▼]

Depuis le premier avril 2002, une directive de l'Union Européenne contraint la Belgique à tester les chèvres et les moutons, en plus des bovins, dans le cadre de la recherche d'encéphalopathie spongiforme transmissible. Comme chez les bovins, le diagnostic est réalisé à partir d'un prélèvement de l'isthme encéphalique au niveau de l'obex. Des différences morphologiques entre l'isthme encéphalique des moutons et chèvres et celui des bovins ont nécessité quelques ajustements de la méthode de prélèvement. Dans cette étude, les particularités techniques du prélèvement et certaines caractéristiques morphologiques du cerveau ovin sont décrites. Les différences majeures, par rapport aux bovins, sont d'une part les dimensions plus petites, et d'autre part le rétrécissement caudal très marqué de l'isthme encéphalique. [less ▲]

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See detailStaalname van de hersenstam voor TSE-Onderzoek bij het schaap
Jacobs, C.; Gabriel, Annick ULg; Simoens, P.

in Vlaams Diergeneeskundig Tijdschrift (2002), 71

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See detailIngestion and metabolic profile in horses offered lucerne or chalk as a source of calcium
de Behr, V.; Daron, D.; Gabriel, Annick ULg et al

in Proceedings of the British Society of Animal Science (2002)

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See detailLooking for human therapeutic intervention in the healing of fractures
Udrescu, M.; Gabriel, Annick ULg

Poster (2002)

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See detailLatency and Reactivation of a Glycoprotein E Negative Bovine Herpesvirus Type 1 Vaccine: Influence of Virus Load and Effect of Specific Maternal Antibodies
Lemaire, Mylène; Schynts, Frédéric; Meyer, Gilles et al

in Vaccine (2001), 19(32), 4795-804

The effects of the vaccination of neonatal calves with a glycoprotein E (gE)-negative bovine herpesvirus type 1 (BHV-1) were investigated in naive and passively immunised calves either with the ... [more ▼]

The effects of the vaccination of neonatal calves with a glycoprotein E (gE)-negative bovine herpesvirus type 1 (BHV-1) were investigated in naive and passively immunised calves either with the recommended dose or a 5-fold concentrated one. After inoculation (PI), all calves excreted the virus vaccine except three passively immunised calves inoculated with the lower titre. No antibody response could be detected in passively immunised calves, whatever the dose used, and they all became BHV-1 seronegative and remained so after dexamethasone treatment (PDT). Nevertheless, as shown by a gamma-interferon assay, all calves that excreted the vaccine PI developed a cell-mediated immune response and a booster response was observed PDT, suggesting viral reactivation. The vaccine virus was recovered PDT from nasal secretions in two calves and BHV-1 DNA were detected in trigeminal ganglia from five calves belonging to all inoculated groups. The results show that the BHV-1 gE-negative vaccine can establish latency not only in naive but also in passively immunised neonatal calves after a single intranasal inoculation. Moreover, this study shows for the first time that the gE-negative vaccine, when used in passively immunised calves, can lead to seronegative vaccine virus carriers. [less ▲]

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See detailComparative Pathogenesis of Acute and Latent Infections of Calves with Bovine Herpesvirus Types 1 and 5
Meyer, Gilles; Lemaire, Mylène; Ros, C. et al

in Archives of Virology (2001), 146(4), 633-52

This study was conducted to compare the pathogenesis of acute and latent infections with closely related bovine herpesvirus types 1 (BHV-1) and 5 (BHV-5) in their natural host. Two groups of eight calves ... [more ▼]

This study was conducted to compare the pathogenesis of acute and latent infections with closely related bovine herpesvirus types 1 (BHV-1) and 5 (BHV-5) in their natural host. Two groups of eight calves were inoculated intranasally with BHV-1 or BHV-5. Although BHV-1 and BHV-5 similarly replicate in the nasal mucosa after inoculation, both viruses differ markedly in their ability to cause disease, BHV-5 being responsible of some fatal encephalitis while BHV-1 inducing rhinotracheitis. Virus isolation and immunohistochemistry demonstrated that BHV-5 replicates extensively in neurons of the central nervous system (CNS) and in respiratory cells of lungs, tracheal and nasal mucosae. Invasion of the CNS likely occurs through the trigeminal and olfactory pathways. Both groups developed cross-neutralising antibodies during this experiment suggesting partial clinical cross-protection afforded by the two infections. Three months after primary infection, experimental reactivation showed that BHV-5 was able to establish latency in the trigeminal ganglia but also the CNS of surviving calves. Moreover, laboratory findings suggested that BHV-5 could also persist in the tracheal and nasal mucosae. These results indicate that, after primary infection, BHV-1 and BHV-5 displayed similar biological features and consequently need to be considered together for the control of BHV-1 infection. [less ▲]

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See detailAspects physiologiques de la sécrétion laitière par la mamelle bovine
Dosogne, H; Arendt, J; Gabriel, Annick ULg et al

in Annales de Médecine Vétérinaire (2000), 144

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See detailUltrasonography of back and pelvis in the horse.
Busoni, Valeria ULg; Gabriel, Annick ULg; Lacroix, S. et al

Conference (2000)

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See detailMorphometrical study of the equine navicular bone: age-related changes and influence of exercise
Gabriel, Annick ULg; Detilleux, Johann ULg; Jolly, Sandra ULg et al

in Veterinary Research Communications (1999), 23(1), 15-40

Navicular bones from the four limbs of 95 horses, classified in 9 categories, were studied. The effects of age on navicular bone morphometry and histomorphometry were estimated, after adjustment of the ... [more ▼]

Navicular bones from the four limbs of 95 horses, classified in 9 categories, were studied. The effects of age on navicular bone morphometry and histomorphometry were estimated, after adjustment of the data to even out the effects of front and rear limbs, morphometrical type, sex, weight, and size. All the external measurements of the navicular bone decreased significantly with increasing age. From the histomorphometrical data, cortical bone volume decreased with age in most horses, whereas cancellous bone volume and, in particular, the marrow spaces increased. The increase in the cancellous bone volume could have resulted from tunnelling of the internal part of the cortex, which converted it progressively into a porous trabecular-like structure. Trabecular bone volume also decreased with age and the trabecular lattice changed dramatically to become disconnected in aged horses. These observations corresponded closely to those reported for ageing of the skeletal system in humans. However, in sporting horses, the navicular cortical bone volume increased with age and the cancellous bone volume decreased. Exercise appeared to have decreased bone resorption and increased bone formation at the endocortical junction. The cancellous bone architecture was also improved. in that the trabecular lattice and trabecular bone volume remained unchanged in aged sporting horses. Our findings confirmed that exercise may be good practice to prevent age-related bone loss. [less ▲]

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See detailIncreasing incidence of equine motor neurone disease in Belgium
Christmann, U; Noppe, E; Cassart, Dominique ULg et al

in Journal of Equine Veterinary Science (1999), 19

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See detailGrass sickness: a Belgian reality
Christmann, U; Cassart, Dominique ULg; Gabriel, Annick ULg et al

in Proceedings of the 38th Annual Congress of the British Equine Veterinary Association (BEVA) (1999)

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See detailMorphométrie du pied du cheval et maladie naviculaire
Collin, B.; Gabriel, Annick ULg

in Bulletin de l'Académie Vétérinaire de France (1999), 72

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See detailDetection of Tryptase in Bovine Mast Cells: Comparison of Enzyme- and Immuno-Histochemistry
Jolly, Sandra ULg; Coignoul, Freddy ULg; Gabriel, Annick ULg et al

in Journal of Comparative Pathology (1999), 120(3), 269-79

Mast cell (MC) phenotypes may vary with respect to tissue site, sensitivity to degranulating agents, dependency on T lymphocytes and, above all, the composition of their granules. Proteinases (either ... [more ▼]

Mast cell (MC) phenotypes may vary with respect to tissue site, sensitivity to degranulating agents, dependency on T lymphocytes and, above all, the composition of their granules. Proteinases (either trypsin-like or chymotrypsin-like) are granule constituents which provide an important means of distinguishing subtypes of MCs in man and rodents. The purpose of this study was to compare the distribution of MC trypsin-like protease (tryptase) in a variety of bovine tissues with the aim of examining MC heterogeneity. Tryptase was found in MCs regardless of their location within tissues. With respect to tryptase content, bovine MC distribution resembled more that of human and canine tissues than that of mice and rats. Comparison of the results yielded by enzyme- and immuno-histochemical staining suggested that a tryptase-negative, dual-specific chymase-positive MC subset occurred, at least in duodenal lamina propria, around bronchioles and within alveolar septa. The study also suggested that monoclonal antibodies raised against human tryptase can be used for quantitation of bovine tryptase in biological fluids; this offers a promising tool for evaluating the role of MC activation in disease. [less ▲]

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See detailMorphometric Study of the Equine Navicular Bone: Variations with Breeds and Types of Horse and Influence of Exercise
Gabriel, Annick ULg; Jolly, Sandra ULg; Detilleux, Johann ULg et al

in Journal of Anatomy (1998), 193((Pt 4)), 535-49

Navicular bones from the 4 limbs of 95 horses, classified in 9 categories, were studied. The anatomical bases were established for the morphometry of the navicular bone and its variations according to the ... [more ▼]

Navicular bones from the 4 limbs of 95 horses, classified in 9 categories, were studied. The anatomical bases were established for the morphometry of the navicular bone and its variations according to the category of horse, after corrections were made for front or rear limb, sex, weight, size and age. In ponies, navicular bone measurements were smallest for light ponies and regularly increased with body size, but in horses, navicular bone dimensions were smallest for the athletic halfbred, intermediate for draft horse, thoroughbreds and sedentary halfbreds and largest for heavy halfbreds. The athletic halfbred thus showed reduced bone dimensions when compared with other horse types. Navicular bones from 61 horses were studied histomorphometrically. Light horses and ponies possessed larger amounts of cancellous bone and less cortical bone. Draft horses and heavy ponies showed marked thickening of cortical bone with minimum intracortical porosity, and a decrease in marrow spaces associated with more trabecular bone. Two distinct zones were observed for the flexor surface cortex: an external zone composed mainly of poorly remodelled lamellar bone, disposed in a distoproximal oblique direction, and an internal zone composed mainly of secondary bone, with a lateromedial direction for haversian canals. Flexor cortex external zone tended to be smaller for heavy ponies than for the light ponies. It was the opposite for horses, with the largest amount of external zone registered for draft horses. In athletic horses, we observed an increase in the amount of cortical bone at the expense of cancellous bone which could be the result of reduced resorption and increased formation at the corticoendosteal junction. Cancellous bone was reduced for the athletic horses but the number of trabeculae and their specific surfaces were larger. Increased bone formation and reduced resorption could also account for these differences. [less ▲]

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See detailEtude radiologique de l’os naviculaire normal. Partie 1: que penser des canaux sésamoïdiens du bord distal
Gabriel, Annick ULg; Jolly, S.; Detilleux, Johann ULg et al

in Annales de Médecine Vétérinaire (1998), 142

The scoring system based on the different types of navicular distal border canals is a good method to quantify and relativise the anomalies in number, shape and localisation of the canals. The distal ... [more ▼]

The scoring system based on the different types of navicular distal border canals is a good method to quantify and relativise the anomalies in number, shape and localisation of the canals. The distal border score varies significantly with the limb (fore or rear), the morphological type, the gender and the age of the horse. These anatomical variations are of importance and must be taken into account when examining a suspect bone. The score is larger for the fore navicular bone than for the rear. It could be interesting to compare both scores: rear navicular bone score is generally equal to half (or slight less) that of the fore. The score is larger for heavy types of horses and ponies (drafthorse, heavy halfbreds and Fjords). This phenomenon could be related to a larger pressure within the distal interphalangeal joint. The score is lower for the athletic half bred than for other halfbreds. This could be the result of the changes in bone architecture induced by exercise and particularly bone densification. The score is lower for the female than for the male. We think that navicular bone quality is better for the female and this idea corroborates that of other authors that consider that the risk to develop navicular disease is smaller for the female than for the male. The score increases with age. it is particularly small in young horses less than two years old and then increases strongly. This phenomenon is to be related to the progressive development, in the first year of life, of the groove between articular cartilage and distal impar ligament, canals developping only later one. In athletic horses, the score is higher between 7 and 12 years of age. During this time, we also observe more degenerative changes within the navicular bone, which could mean that bone is of lesser quality. [less ▲]

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