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See detailFeline panleukopenia virus in cerebral neurons of young and adult cats.
Garigliany, Mutien-Marie ULg; Gilliaux, Gautier ULg; Jolly, Sandra et al

in BMC veterinary research (2016), 12(1), 28

BACKGROUND: Perinatal infections with feline panleukopenia virus (FPV) have long been known to be associated with cerebellar hypoplasia in kittens due to productive infection of dividing neuroblasts. FPV ... [more ▼]

BACKGROUND: Perinatal infections with feline panleukopenia virus (FPV) have long been known to be associated with cerebellar hypoplasia in kittens due to productive infection of dividing neuroblasts. FPV, like other parvoviruses, requires dividing cells to replicate which explains the usual tropism of the virus for the digestive tract, lymphoid tissues and bone marrow in older animals. RESULTS: In this study, the necropsy and histopathological analyses of a series of 28 cats which died from parvovirus infection in 2013 were performed. Infections were confirmed by real time PCR and immunohistochemistry in several organs. Strikingly, while none of these cats showed cerebellar atrophy or cerebellar positive immunostaining, some of them, including one adult, showed a bright positive immunostaining for viral antigens in cerebral neurons (diencephalon). Furthermore, infected neurons were negative by immunostaining for p27(Kip1), a cell cycle regulatory protein, while neighboring, uninfected, neurons were positive, suggesting a possible re-entry of infected neurons into the mitotic cycle. Next-Generation Sequencing and PCR analyses showed that the virus infecting cat brains was FPV and presented a unique substitution in NS1 protein sequence. Given the role played by this protein in the control of cell cycle and apoptosis in other parvoviral species, it is tempting to hypothesize that a cause-to-effect between this NS1 mutation and the capacity of this FPV strain to infect neurons in adult cats might exist. CONCLUSIONS: This study provides the first evidence of infection of cerebral neurons by feline panleukopenia virus in cats, including an adult. A possible re-entry into the cell cycle by infected neurons has been observed. A mutation in the NS1 protein sequence of the FPV strain involved could be related to its unusual cellular tropism. Further research is needed to clarify this point. [less ▲]

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See detailFirst report of a fatal autochthonous canine Angiostrongylus vasorum infection in Belgium
Jolly, Sandra ULg; Poncelet, Luc; Lempereur, Laetitia ULg et al

in Parasitology International (2014)

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See detailIdentification of feline panleukopenia virus proteins expressed in Purkinje cell nuclei of cats with cerebellar hypoplasia
Poncelet, Luc; Héraud, Céline; Springinsfeld, Marie et al

in The Veterinary Journal (2013), 196(3), 381-387

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See detailDetection of antigenic heterogeneity in feline coronavirus nucleocapsid in feline pyogranulomatous meningoencephalitis.
Poncelet, Luc; Coppens, Angélique; Peeters, Dominique ULg et al

in Veterinary Pathology (2008), 45(2)

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See detailLaryngeal paralysis-polyneuropathy complex in young related Pyrenean Mountain dogs.
Gabriel, Alexandra; Poncelet, Luc; Van Ham, Luc et al

in Journal of Small Animal Practice (2006), 47(3)

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See detailSyndrome cérébelleux paradoxal provoqué par un méningiome chez une vache
Danlois, F.; Poncelet, Luc; Rollin, Frédéric ULg

in Annales de Médecine Vétérinaire (2002), 146

A paradoxical vestibular syndrome caused by a fibroblastic meningioma is described in a 20 month-old Holstein heifer. Clinical signs included head tilt, jerking movements of the head and neck, circling to ... [more ▼]

A paradoxical vestibular syndrome caused by a fibroblastic meningioma is described in a 20 month-old Holstein heifer. Clinical signs included head tilt, jerking movements of the head and neck, circling to the left, and also abducted and hypermetric right limbs. The animal was culled and the forebrain therefore was unavailable for histopathological study. The tumour was found on the right side, adherent to the dura mater at the level of the pontomedullary junction. The paradoxical vestibular signs were explained by the presence of the mass causing a loss of cerebellar inhibition over homolateral vestibular nuclei resulting in hyperactivity on the same side as the tumour and simulating a contralateral functional loss. The jerking head and neck movements might be caused by the same lesion although a concurrent forebrain lesion could not be excluded. [less ▲]

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See detailLaryngeal paralysis-polyneuropathy complex in a litter of Pyrenean Mountain dogs.
Peeters, Dominique ULg; Clercx, Cécile ULg; Vanham, Luc et al

in Proceedings of the 10th Annual Congress of the ESVIM (2000)

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See detailStudy of Spinal Cord Evoked Injury Potential by Use of Computer Modeling and in Dogs with Naturally Acquired Thoracolumbar Spinal Cord Compression
Poncelet, Luc; Michaux, Charles ULg; Grauwels, Magda ULg

in American Journal of Veterinary Research (1998), 59(3), 300-6

OBJECTIVE: To add objective measurements of the characteristics of evoked injury potentials (EIP) and their relations to clinical severity in dogs with thoracolumbar spinal cord damage. ANIMALS: 25 dogs ... [more ▼]

OBJECTIVE: To add objective measurements of the characteristics of evoked injury potentials (EIP) and their relations to clinical severity in dogs with thoracolumbar spinal cord damage. ANIMALS: 25 dogs with naturally acquired spinal cord compression attributable to disk extrusion or vertebral fracture at the level of the thoracolumbar junction and with various degrees of paresis/paralysis. PROCEDURE: Spinal cord potentials evoked by tibial nerve stimulation were recorded every 5 to 10 mm at the lamina level in the vicinity of the cord compression. This allowed an EIP to be recorded even in the least handicapped dogs. A computer model yielded information about the waveform changes of the EIP in the vicinity of conduction blocks. RESULTS: The EIP waveform changed from biphasic to monophasic a short distance caudad to the location of spinal cord compression. Location of a maximal conduction block was measured in relation to position of the electrodes recording this waveform change. The distance between the assumed conduction block and the actual spinal cord compression was larger in the most affected dogs. The amplitude of the EIP was not related to severity of the clinical picture; however, the proximity of the recording electrode to the spine influenced the amplitude and the waveform of the EIP. CONCLUSION AND CLINICAL RELEVANCE: Change in the EIP waveform from biphasic to monophasic makes it possible to estimate the conduction block location along the spinal cord. A large distance between the assumed conduction block and site of actual cord compression could be an objective argument to confirm severity of a lesion. [less ▲]

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See detailMéningo-encéphalite granulomateuse à Aspergillus sp. chez une chienne Airedale Terrier de un an
Poncelet, Luc; Belayat, F.; Losson, Bertrand ULg et al

in Annales de Médecine Vétérinaire (1998)

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See detailMRI of a presumptive trigeminal nerve tumor in a seven years old husky dog : a case report and review of the litterature
Saunders, J.; Clercx, Cécile ULg; Poncelet, Luc et al

in Veterinary Radiology & Ultrasound (1998), 39

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See detailAcute Polymyopathy after Carbamate Poisoning in a Dog
Mc Entee, Kathleen ULg; Poncelet, Luc; Clercx, Cécile ULg et al

in Veterinary Record : Journal of the British Veterinary Association (1994), 135(4), 88-90

The acute polymyopathy in a seven-year-old German shepherd dog was attributed to the muscular hypertonia, tremors and seizures which developed during the acute phase of carbamate poisoning. After two days ... [more ▼]

The acute polymyopathy in a seven-year-old German shepherd dog was attributed to the muscular hypertonia, tremors and seizures which developed during the acute phase of carbamate poisoning. After two days of generalised muscular rigidity, the dog adopted a characteristic fetal position which could be explained by the imbalance between the injuries to the extensor and flexor muscles. The polymyopathy resolved gradually over the course of a week. [less ▲]

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See detailDisseminated aspergillosis and candosis ina dog
Clercx, Cécile ULg; Mc Entee, Kaleline; Snaps, Frédéric ULg et al

in Journal of Veterinary Internal Medicine (1994)

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See detailSuccessful removal of an intramedullary spinal paraganglioma from a dog
Poncelet, Luc; Snaps, Frédéric ULg; Jacobovitz, D. et al

in Journal of the American Animal Hospital Association (1994), 30(3), 213-216

An 11-year-old, mixed-breed dog suffering progressive asymmetric hind limb ataxia was diagnosed as having spinal cord compression at the L1 spinal level. An intramedullary, encapsulated tumor was ... [more ▼]

An 11-year-old, mixed-breed dog suffering progressive asymmetric hind limb ataxia was diagnosed as having spinal cord compression at the L1 spinal level. An intramedullary, encapsulated tumor was surgically removed. Tumor microscopic features, positive neuron-specific enolase (NSE) immunostaining, and Grimelius staining led to the diagnosis of paraganglioma. The dog was free from any neuroloaic signs 12 days after surgery. [less ▲]

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See detailSWIMMING PUPPY SYNDROME IN A LITTER OF BOUVIER-DES-FLANDRES
Poncelet, Luc; Gilbert, S.; Jauniaux, Thierry ULg et al

in Annales de Médecine Vétérinaire (1994), 138(2), 121-123

This paper describes the clinical, serologic, electrophysiologic and pathologic findings in three Bouvier des Flandres puppies exhibiting the swiming puppy syndrome. The puppies had no antibodies against ... [more ▼]

This paper describes the clinical, serologic, electrophysiologic and pathologic findings in three Bouvier des Flandres puppies exhibiting the swiming puppy syndrome. The puppies had no antibodies against distemper virus, T. gondii and N. caninum. A myopathy was suspected because spontaneous activities were disclosed in all muscle groups and muscles enzymes were elevated. However the pathologic findings were unable to confirm this hypothesis. [less ▲]

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See detailInfluence of body size on tibial nerve somato sensory evoked potentials in dogs
Poncelet, Luc; Michaux, Charles; Balligand, Marc ULg

in American Journal of Veterinary Research (1993)

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See detailSomatosensory potentials in dogs suffering naturally-acquired thoraco-lumbar spinal cord disease
Poncelet, Luc; Michaux, Ch.; Balligand, Marc ULg

in American Journal of Veterinary Research (1993)

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See detailEffect of bilateral stimulation on spinal evoked potentials in dogs
Poncelet, Luc; Delauche, A.; Vinals, C. et al

in American Journal of Veterinary Research (1992)

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See detailA regional curare test evaluation of myotonia in dogs
Poncelet, Luc; Gilbert, S.; Snaps, Frédéric ULg et al

in Journal of Small Animal Practice (1992), 33

This paper describes a regional curare test performed in a dog suffering from myotonia and hyperadrenocorticism. The test prevented innervation to the pronator teres muscle of the left limb and allowed ... [more ▼]

This paper describes a regional curare test performed in a dog suffering from myotonia and hyperadrenocorticism. The test prevented innervation to the pronator teres muscle of the left limb and allowed electrical activity to be observed in the muscle without the need for a general neuromuscular blockade; various types of spontaneous activity other than myotonic discharges were also observed. Details of the method are given and its usefulness in the evaluation of myopathies is discussed. [less ▲]

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See detailNature of the late potentials and F-ratio values in dogs
Poncelet, Luc; Balligand, Marc ULg

in Research in Veterinary Science (1991)

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See detailInfestation de chiots par Neospora Canis en Belgique et en France
Poncelet, Luc; Coignoul, Freddy ULg; Fontaine, Jacques ULg et al

in Annales de Médecine Vétérinaire (1990), (134), 167-171

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