Research Topics
| Jean Pierre LavoieSummaryCountry: Canada Publications
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Publications
Profiling of differentially expressed genes using suppression subtractive hybridization in an equine model of chronic asthmaJean Pierre Lavoie
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
PLoS ONE 7:e29440. 2012..Due to ethical considerations, there is currently limited information on the transcriptome profile of the peripheral lung tissues in asthma...
Corticosteroids and antigen avoidance decrease airway smooth muscle mass in an equine asthma modelMathilde Leclere
Department of Veterinary Clinical Sciences, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
Am J Respir Cell Mol Biol 47:589-96. 2012..Inhaled corticosteroids may accelerate the reversal of smooth muscle remodeling, even if airway inflammation is better controlled with antigen avoidance...
Neutrophilic airway inflammation in horses with heaves is characterized by a Th2-type cytokine profileJ P Lavoie
Faculte de Medecine Veterinaire, Universite de Montreal, St Hyacinthe, Quebec, Canada
Am J Respir Crit Care Med 164:1410-3. 2001..Here we show that inflammatory cells in lungs from horses with heaves display a Th2-type cytokine profile that is consistent with the hypothesis that heaves is an allergic condition with similarity to human asthma...
Lack of clinical efficacy of a phosphodiesterase-4 inhibitor for treatment of heaves in horsesJean Pierre Lavoie
Faculte de Medecine Veterinaire, Universite de Montreal, QC, Canada
J Vet Intern Med 20:175-81. 2006..These findings suggest that the PDE 4 enzyme is not a key mediator of lung inflammation in heaves...
Bronchiectasis in three adult horses with heavesJean-Pierre Lavoie
Department of Clinical Sciences, , , St. Hyacinthe, QC, Canada J2S 7C6
J Vet Intern Med 18:757-60. 2004
Bronchoalveolar lavage fluid cytology and cytokine messenger ribonucleic Acid expression of racehorses with exercise intolerance and lower airway inflammationJ P Lavoie
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, Saint Hyacinthe, QC, Canada
J Vet Intern Med 25:322-9. 2011..Thus, we evaluated the mRNA expression of selected cytokines in BAL cells in racehorses with exercise intolerance and lower airway inflammation...
Conjugates of ovalbumin and monomethoxypolyethylene glycol abolish late allergic responses and decrease IL-4 and IL-5 mRNA expression in the ratJ P Lavoie
Department de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, 3200 Sicotte CP5000, St Hyacinthe, Que, Canada J2S 7C6
Pulm Pharmacol Ther 16:361-9. 2003....
IL-4 activates equine neutrophils and induces a mixed inflammatory cytokine expression profile with enhanced neutrophil chemotactic mediator release ex vivoAnouk Lavoie-Lamoureux
Departement de Sciences Cliniques, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
Am J Physiol Lung Cell Mol Physiol 299:L472-82. 2010..Overall, results from this study add to the link between Th2-driven inflammation and neutrophilia in the equine model and further extend the characterization of IL-4 effects on neutrophils...
Effect of antigenic exposure on airway smooth muscle remodeling in an equine model of chronic asthmaMathilde Leclere
DVM, Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, 3200 Sicotte, Saint Hyacinthe, Quebec J2S 7C6, Canada
Am J Respir Cell Mol Biol 45:181-7. 2011..This increased mass is maintained in a dynamic equilibrium by an elevated cellular turnover, suggesting that targeting smooth muscle proliferation could be effective at decreasing chronic remodeling...
Thoracoscopic lung biopsies in heaves-affected horses using a bipolar tissue sealing systemFabien Relave
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, Saint Hyacinthe, QC, Canada
Vet Surg 39:839-46. 2010..To validate the use of the LigaSure™ Vessel Sealing System (LVSS) to perform thoracoscopic lung tissue biopsies in heaves-affected horses...
Effects of pentoxifylline on pulmonary function and results of cytologic examination of bronchoalveolar lavage fluid in horses with recurrent airway obstructionRenaud Leguillette
Departement des Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, QC, Canada
Am J Vet Res 63:459-63. 2002..To determine the effects of pentoxifylline (PTX) administration on lung function and results of cytologic examination of bronchoalveolar lavage fluid in horses affected by recurrent airway obstruction (RAO)...
Systemic inflammation and priming of peripheral blood leukocytes persist during clinical remission in horses with heavesAnouk Lavoie-Lamoureux
Faculte de Medecine Veterinaire, Departement de Sciences Cliniques, U of Montreal, 3200 rue Sicotte St Hyacinthe, Quebec, Canada
Vet Immunol Immunopathol 146:35-45. 2012..To compare innate immune responses of peripheral blood leukocytes from healthy and asymptomatic heaves-affected horses...
IL-4 stimulates the expression of CXCL-8, E-selectin, VEGF, and inducible nitric oxide synthase mRNA by equine pulmonary artery endothelial cellsHong Huang
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
Am J Physiol Lung Cell Mol Physiol 292:L1147-54. 2007..DXM and the iNOS inhibitors may decrease pulmonary neutrophilia due, in part, to a direct inhibition of some of these factors...
Heaves, an asthma-like disease of horsesMathilde Leclere
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, St Hyacinthe, Canada
Respirology 16:1027-46. 2011....
Evaluation of variations in bronchoalveolar lavage fluid in horses with recurrent airway obstructionDaniel Jean
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, Saint Hyacinthe, QC J2S 7C6, Canada
Am J Vet Res 72:838-42. 2011..To determine variations in cytologic counts of bronchoalveolar lavage (BAL) fluid attributable to month of collection, first and second aliquots, and left and right lung sites in horses with recurrent airway obstruction (RAO)...
Cytokine expression by peripheral blood neutrophils from heaves-affected horses before and after allergen challengePhilippe Joubert
Universite de Montreal, Faculte de Medecine Veterinaire, Departement de Sciences Cliniques, C P 5000, St Hyacinthe, Quebec, Canada J2S 7C6
Vet J 178:227-32. 2008....
Cytokine and chemokine gene expression of IL-1beta stimulated equine articular chondrocytesFlorent David
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, Saint Hyacinthe, Quebec, Canada J2S 7C6
Vet Surg 36:221-7. 2007..To evaluate mRNA expression of several proinflammatory and anti-inflammatory cytokines and chemokines in equine unstimulated and interleukin-1beta (IL-1beta)-stimulated chondrocytes...
Cytokine mRNA expression of pulmonary macrophages varies with challenge but not with disease state in horses with heaves or in controlsPhilippe Joubert
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, St Hyacinthe, QC, Canada
Vet Immunol Immunopathol 142:236-42. 2011....
Evaluation of a thoracoscopic technique using ligating loops to obtain large lung biopsies in standing healthy and heaves-affected horsesFabien Relave
Departement des Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, 3200 Sicotte, Saint Hyacinthe, Quebec, J2S 7C6, Canada
Vet Surg 37:232-40. 2008..To evaluate use of pre-tied ligating loop to perform thoracoscopic, large lung biopsy in normal and heaves-affected horses...
Effects of the bronchoalveolar lavage procedure on lung function in horses with clinical exacerbation of recurrent airway obstructionRenaud Leguillette
Department de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, St Hyacinthe, QC J2S 7C6, Canada
Am J Vet Res 67:1929-33. 2006..To evaluate whether bronchoalveolar lavage (BAL) alters respiratory mechanics of horses with recurrent airway obstruction (ie, heaves) over a 48-hour period...
Evaluation of a modified thrombelastography assay initiated with recombinant human tissue factor in clinically healthy horsesMathilde Leclere
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, QC, Canada
Vet Clin Pathol 38:462-6. 2009..TEG analysis initiated with recombinant human tissue factor (TF) has not been evaluated in clinically healthy horses...
Optimization of a procedure to accurately detect equine TNFα in serum samplesAnouk Lavoie-Lamoureux
Faculte de Medecine Veterinaire, Universite de Montreal, 3200 rue Sicotte, St Hyacinthe, J2S2M2 Québec, Canada
Vet Immunol Immunopathol 138:118-23. 2010..The specificity of TNFα detection was also assessed. Our optimized assay conditions were validated by quantifying levels of TNFα in serum samples from normal horses and horses affected with chronic pulmonary disease (heaves)...
Effects of syringe type and storage temperature on results of blood gas analysis in arterial blood of horsesValerie Picandet
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, QC, Canada
J Vet Intern Med 21:476-81. 2007..However, the acceptable delay between time of collection and analysis for equine arterial blood gas remains unknown...
Clinical application of Patlak plot CT-GFR in animals with upper urinary tract diseaseKate Alexander
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, PO Box 5000, St Hyacinthe, QC, Canada J2S 7C6
Vet Radiol Ultrasound 51:421-7. 2010..There was a significant relationship between CT-GFR and serum creatinine values, which supports the clinical potential of CT-GFR and justifies further investigation of this technique...
Transvenous pacing leads and systemic thromboemboli in patients with intracardiac shunts: a multicenter studyPaul Khairy
Adult Congenital Heart and Electrophysiology Services, Montreal Heart Institute, Montreal, Canada
Circulation 113:2391-7. 2006..The risk of systemic thromboemboli associated with transvenous leads in the presence of an intracardiac shunt is currently unknown...
[Responsibilities of elderly support: normative expectations with regard of ex-spouses and step-children]Nicolas Rousseau
Centre de recherche et d expertise de gérontologie sociale, CSSS Cavendish CAU, 5800 Boul Cavendish, Suite 600, Côte St Luc, Quebec H4W 2T5, Canada
Can J Aging 27:371-83. 2008..Where offspring are specifically concerned, expectations are strongly influenced by the given context; for this category of survey-taker, the demands of support should not interfere with their family life and career...
Genetic relatedness of recent Canadian equine influenza virus isolates with vaccine strains used in the fieldCarl A Gagnon
Groupe de Recherche sur les Maladies Infectieuses du Porc
Can Vet J 48:1028-30. 2007
Baby Boom caregivers: care in the age of individualizationNancy Guberman
School of Social Work, University of Quebec in Montreal, Montreal, Quebec, Canada
Gerontologist 52:210-8. 2012..This study examines how Baby Boomers in Quebec, Canada, perceive and play their role as caregivers and how this might differ from their parents' generation...
Formal service practitioners' views of family caregivers' responsibilities and difficultiesNancy Guberman
Ecole de Travail social, Universite du Quebec a Montreal, QC, H3C 3P8, Canada
Can J Aging 25:43-53. 2006..Our analysis offers an explanation for this apparent contradiction by examining practitioners' values with regard to family responsibility for care...
Glanzmann thrombasthenia in an Oldenbourg fillySusana Macieira
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
Vet Clin Pathol 36:204-8. 2007..The laboratory findings supported a diagnosis of Glanzmann thrombasthenia, likely caused by a mutation in the gene encoding the GPIIb subunit...
Efficacy of a psychoeducative group program for caregivers of demented persons living at home: a randomized controlled trialRéjean Hébert
Research Centre on Aging, Sherbrooke Geriatric University Institute, Quebec, Canada
J Gerontol B Psychol Sci Soc Sci 58:S58-67. 2003..To test the efficacy of a psychoeducative group program for informal caregivers of persons with dementia...
Neutrophils are not less sensitive than other blood leukocytes to the genomic effects of glucocorticoidsGaelle Hirsch
Department of Clinical Sciences, Faculty of Veterinary Medicine, Universite de Montreal, Saint Hyacinthe, Quebec, Canada
PLoS ONE 7:e44606. 2012..Few comparative studies of glucocorticoid effects in neutrophils and other leukocytes have been reported and a relative insensitivity of neutrophils to these drugs could not be ruled out...
Evaluation of athletic performance in horses with jugular vein thrombophlebitis: 91 cases (1988-2005)Peggy Moreau
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, Universite de Montreal, Saint Hyacinthe, QC, Canada
J Am Vet Med Assoc 235:1073-8. 2009..To evaluate effects of thrombophlebitis of 1 or both jugular veins on athletic performance of horses...
Development of an electrospray ionization mass spectrometric method for the quantification of theophylline in horse serumFrancis Beaudry
Department of Veterinary Biomedicine, Faculty of Veterinary Medicine, University of Montreal, St Hyacinthe, QC, Canada
Biomed Chromatogr 19:643-8. 2005..9%, respectively. This LC-ESI/MS/MS method for the determination of theophylline in horse serum has been proved to within generally accepted criteria used for bioanalytical assay and was used successfully during clinical investigation...
Comparison of effects of dexamethasone and the leukotriene D4 receptor antagonist L-708,738 on lung function and airway cytologic findings in horses with recurrent airway obstructionJean-Pierre Lavoie
Department of Clinical Sciences, , , St Hyacinthe, QC, Canada
Am J Vet Res 63:579-85. 2002..Results provide the first evidence of cysteinyl LT1 receptors in airways of horses...
IL-4, IL-5 and IFN-gamma mRNA expression in pulmonary lymphocytes in equine heavesMarie-Eve Cordeau
, , 3200 Sicotte, St-Hyacinthe, Que, Canada J2S 7C6
Vet Immunol Immunopathol 97:87-96. 2004..In this study we have shown that BAL lymphocytes of horses with heaves during clinical exacerbation have a predominant Th2-type cytokine response and that this response coincides in time with the presence of airway obstruction...
Comparison of TGF-beta 1 concentrations in bronchoalveolar fluid of horses affected with heaves and of normal controlsIsabelle Desjardins
Departement de Sciences Cliniques, Faculte de Medecine Veterinaire, University de Montreal, St. Hyacinthe, Canada J2S 7C6
Vet Immunol Immunopathol 101:133-41. 2004..Other studies are necessary for a better definition of the role of this cytokine within the lung, as our study does not establish a causal relationship between TGF-beta1 and the pathophysiology of heaves in the horse...
Chronic exacerbation of equine heaves is associated with an increased expression of interleukin-17 mRNA in bronchoalveolar lavage cellsMarie Debrue
Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, 3200 Sicotte, Saint-Hyacinthe, Que, Canada J2S7C6
Vet Immunol Immunopathol 105:25-31. 2005..These preliminary results suggest that IL-17 may contribute in the pathogenesis of horses with heaves following chronic antigen challenge...
Expression of interleukin (IL)-5 and IL-9 receptors on neutrophils of horses with heavesOday Dewachi
Meakins-Christie Laboratories, McGill University, 3650 St-Urbain, Montreal, Que, Canada
Vet Immunol Immunopathol 109:31-6. 2006..These results provide a possible mechanism by which Th2-type cytokines may activate neutrophils in equine heaves...
Families' values and attitudes regarding responsibility for the frail elderly: implications for aging policyNancy Guberman
School of Social Work, University of Quebec, Montreal, Quebec, H3C 3P8, Canada
J Aging Soc Policy 18:59-78. 2006..This article discusses these seemingly paradoxical results and their implications for aging policy...
[Evolution of bacterial resistance to certain antibacterial agents in horses in a veterinary hospital]Mathieu Peyrou
, , ,
Can Vet J 44:978-81. 2003..The adoption of "good antibiotherapy practices" is essential to guarantee a decrease in the risks of selection and dissemination of a resistant bacterial strain...
Diagnostic and epidemiological features of Lawsonia intracellularis enteropathy in 2 foalsJulie Dauvillier
, , , 3200 Sicotte, Saint-Hyacinthe,
Can Vet J 47:689-91. 2006..One foal was serologically positive 3 days after onset of clinical signs and remained positive for more than 6 months...
Comparison of four staining methods for detection of mast cells in equine bronchoalveolar lavage fluidMathilde Leclere
Department of Clinical Sciences, Faculty of Veterinary Medicine, , Saint-Hyacinthe, , Canada
J Vet Intern Med 20:377-81. 2006..In conclusion, fast Romanosky stain may be inadequate for detection of mast cells in equine BALF, whereas automated Romanowsky, May-Grünwald Giemsa, and toluidine blue stains provide metachromatic staining of mast cell granules...
Heaves, an asthma-like equine disease, involves airway smooth muscle remodelingBerenice Herszberg
Meakins Christie Laboratories, McGill University, 3626 Saint Urbain, Montreal, Quebec H2X 2P2, Canada
J Allergy Clin Immunol 118:382-8. 2006..Airway smooth muscle hyperplasia occurs in rodent models of experimental asthma, but the relevance of such finding to spontaneously occurring disease in large mammals is unknown...
Tools for the diagnosis of equine respiratory disordersMarie France Roy
Center for the Study of Host Resistance, Montreal General Hospital Research Institute, McGill University, 1650 Cedar Avenue, Room Lll 513, Montreal, Quebec H3G 1A4, Canada
Vet Clin North Am Equine Pract 19:1-17, v. 2003..Physical and endoscopic examination, radiology, diagnostic ultrasound, techniques for sampling the respiratory tract, hematology, blood gas analysis, respiratory mechanics, and some modern diagnostic tools are briefly covered...
Inflammatory airway disease of horsesLaurent L Couetil
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
J Vet Intern Med 21:356-61. 2007....
