Researchers

Researchers

YChorfiYounes Chorfi, DV, MSc., PhD.

Professeur adjoint en nutrition, alimentation et de productions animales
Université de Montréal
Département de biomédecine vétérinaire
3200 Sicotte, St-Hyacinthe, Qc
J2S 2M2
This email address is being protected from spambots. You need JavaScript enabled to view it.
Telephone: 450-773-8521 extension 8299

 

University training :

DV. (IAV Rabat, 1994)

MSc. sciences vétérinaires, microbiologie (Montréal, 1999),

PhD. Sciences vétérinaires, pathologie (Montréal, 2005).

 

Professionnal activities :

▪    Membre du Réseau Québecois en Reproduction (RQR) et du Centre de Recherche en Reproduction Animale (CRRA)

▪    Membre de Groupe de Recherche en Pharmacologie Animale du Québec (GREPAQ)

▪    Membre du Réseau d'innovation sur les grains (Innovagrains)

▪    Membre associé au Centre de Recherche en Infectiologie Porcine (CRIP)

▪    Responsable des analyses du profil métabolique, du sélénium, des vitamines et des mycotoxines chez les animaux domestiques

 

Research interests  

▪    Biomarqueurs de l’exposition aux mycotoxines des animaux domestiques.

▪    Maitrise de l’effet des mycotoxines sur la santé et les performances des animaux domestiques, sur le système immunitaire et la susceptibilité aux infections.

▪    Amélioration de la santé animale par une nutrition/alimentation ciblée.

 

Laboratory members, position and email address: 

  • Vicente Pinilla, M.Sc., This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Yassin Najid, M.Sc., This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Marie-Claude Gendron, Technician, This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

 

 


Martin Frasch, MD, PhD

Assistant Research Professor
CHU Sainte-Justine
3175 Chemin de la Cote
Saint-Catherine
Montréal, Qc, H3T 1C5
514-345-4931 #4048
This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Titles

  • Assistant Research Professor, Department of Obstetrics-Gynecology, Faculty of Medicine, University of Montreal, CHU Sainte-Justine Research Center.
  • Member, Centre de recherche en reproduction animale (CRRA), Faculty of Veterinary Medicine, University of Montreal
  • Adjunct Scientist, Lawson Health Research Institute, London, Ontario.

Research Topics and Interests

  • Antenatal brain development under normal and stress conditions. Focus on autonomic nervous system responses to inflammation (fetal neuroimmunology). Fetal cholinergic anti-inflammatory pathway;
  • Monitoring fetal and neonatal well-being using computer-aided EEG and ECG (HRV) analyses;
  • Postnatal consequences of prenatal stress (fetal programming of adult diseases). I am also interested in how methods derived from the theory of nonlinear dynamics can be used to estimate neuronal complexity and to improve prediction of the physiological and pathophysiological behavior mentioned above.

 

Training

Postdoctoral Fellow

  • Department of Obstetrics and Gynaecology, Children Health Research Institute, Lawson Health Research Institute, University of Western Ontario, Canada, 2009.
  • Research Topics and Interests
    • Effects of chronic hypoxia without progressive acidemia as might be seen in the human fetus antenatally on brain development and inflammatory response;
    • Effects of acute hypoxia with progressive acidemia as might be seen during labor on fetal electrical brain activity (ECoG, EEG) and systemic and brain inflammatory responses;
    • Developmental changes in fetal electrocortical activity (sleep states) due to chronic hypoxia in the last pregnancy trimester.

Residency and Research

  • Department of Neurology, School of Medicine, Friedrich Schiller University, Jena, Germany. Research on fetal asphyxia and programming of adult diseases (Principal Investigator: Matthias Schwab, Prof. Dr. med. habil.), 2006.
  • Research Topics and Interests
    • Acute and chronic effects of hypoxia with and without acute or long-term effects of betamethasone administration on fetal heart rate variability as well as fetal electrical spontaneous (ECoG) and evoked (SEP, AEP) brain activity and cerebral blood flow;
    • Acute and subacute alterations in autonomic nervous system activity in adult patients with ischemic stroke.

Doctorate in Neurosciences (summa cum laude)

  • Institute for Pathophysiology (School of Medicine), Friedrich Schiller University, Jena, Germany. Advisor: Prof. Ulrich Zwiener, Dr. med. habil., PhD. Thesis: Investigating complex coordination of neurovegetative and brain electrical activities in sleep and anesthesia using nonlinear signal analysis. Awarded October 4, 2004.
  • Research Topics and Interests
    • By studying the coupling between heart rate variability and respiratory movements, I was able to retrospectively discriminate human neonates at low and normal risk for adverse outcomes during the first year of life. I also characterized information flow in reticulo-thalamo-cortical communication in an animal model of propofol sedation using analysis of linear and complexity properties of cortical and thalamic electrical activity.

Doctor of Medicine

  • Friedrich Schiller University, Jena, Germany, 2001.

Recent Presentations

    • Fetal heart rate variability monitoring. Montebello Round Table. Complexity and Variability at the Bedside. Montebello, QC, Canada, October 2010.
    • Effects of acute and chronic hypoxia on neuroinflammatory activity. Does gender matter? CHU Sainte-Justine Research Center, University of Montreal, February 2009.
    • What can we learn about autonomic nervous control in near term foetal sheep from the analysis of heart rate variability? Department of Physiology, University College London, London, UK, April 2006.
    • Mechanisms and manipulation of fetal neuroimmune responses to inflammation. NeuroDevNet Brain Development Conference 2011. June 19-21, Vancouver, BC, Canada.

    Awards and Distinctions

    Grants

    • NeuroDevNet - MITACS Accelerate Internship Program (MITACS Inc), 04/2011-09/2011.
    • Junior 1 Research Scholar, Fonds de la recherche en santé du Québec, 2011-2015.
    • Operating grant, Canadian Institutes of Health Research: Reproductive and Child Health (Start-up Grant), 2011-2012.
    • Operating Grant, Molly Towell Perinatal Research Foundation, 2010-2012.
    • Internal Research Fund, Lawson Health Research Institute. Provided molecular evidence of fetal brain cholinergic anti-inflammatory pathway, 2009-2011.
    • Proof of Principle Phase II Grant, Ontario Research & Commercialization Program (ORCP). Tested the fetal EEG/FHR electrode for intrapartum fetal health monitoring, 2008-2010.
    • Proof of Principle Research Grant, Western Innovation Fund. Developed fetal EEG/FHR electrode for intrapartum fetal health monitoring, 2008-2009.

    Scholarships

    • Post-doctoral Scholarship, Strategic Training Initiative in Research in the Reproductive Health Sciences, Canadian Institutes of Health Research (CIHR)/Association of Professors of Obstetrics and Gynaecology of Canada, 2008-2009.
    • E-Fellows Award, industry-sponsored mentorship program awarded for academic excellence and extracurricular activities (e-fellows.net), 1999-2004.
    • Scholarship Award, Friedrich-Naumann Foundation, for academic excellence and social engagement, 1997-2001.

    Prizes (selected)

    • Travel Award, Child Health Research Institute, Ontario, 2010.
    • SGI/Wyeth President’s Presenter Award, 2009.
    • Travel Award, CIHR Institute of Human Development, Child and Youth, 2009.
    • Travel Award, Child Health Research Institute, Ontario, 2007-2008.
    • Travel Award, CIHR Institute of Human Development, Child and Youth, 2007.
    • Young Investigator Travel Award, National Institutes of Health, USA, 2007.
    • "The Michael Smith Foundation for Health Research (MSFHR) Young Investigator Award, 2011"

       Most Important Publications Selected by the Researcher

      Frasch M, Keen AE, Gagnon R, Ross MG, Richardson BS,
      Monitoring fetal electrocortical activity during labour for predicting worsening acidemia: a prospective study in the ovine fetus near term
      PLoS ONE 2011  e22100.     
            
      Prout AP, Frasch M, Veldhuizen RA, Hammond R, Ross MG, Richardson BS,
      Systemic and cerebral inflammatory response to umbilical cord occlusions with worsening acidosis in the ovine fetus
      Am J Obstet Gynecol 2010  82.e1-9.     
            
      Frasch M, Müller T, Hoyer D, Weiss C, Schubert H, Schwab M,
      Nonlinear properties of vagal and sympathetic modulations of heart rate variability in ovine fetus near term
      Am J Physiol Regul Integr Comp Physiol 2009  R702-707.     
            
      Frasch M, Müller T, Weiss C, Schwab K, Schubert H, Schwab M,
      Heart rate variability analysis allows early asphyxia detection in ovine fetus
      Reprod Sci 2009  509-517.     
            
      Frasch M, Walter B, Friedrich H, Hoyer D, Eiselt M, Bauer R,
      Detecting the signature of reticulothalamocortical communication in cerebrocortical electrical activity
      Clin Neurophysiol 2007  1969-1979.

       

       

      Jean Sirois

       smith

      Lawrence C. Smith, DMV, Ph.D

      professor
      Université de Montréal
      Faculté de médicine vétérinaire, CRRA
      3200 Sicotte,
      St-Hyacinthe, Qc
      J2S 2M2 Canada
      This email address is being protected from spambots. You need JavaScript enabled to view it.
      Phone: 450-773-8521 ext 1-8463
      Fax: 450-778-8103

       

      Research Interests:  

       

      • Control epigenitic of the embryo development
      • Mitochondrial DNA heritage in the ovules and embryos
      • Mecanisms of derivation of embryonic stem cells
      • Reproductive and therapeutic cloning  

       

      Summary of Results:

      Translation to come

      • Production de clones transgéniques par transfert nucléaire chez le bovin à partir de cellules somatiques transfectées in vitro;
      • Naissance de Starbuck II (septembre 2000).  Clone bovin issu de fibroblastes sous-cutanés prélevées chez Hanoverhill Stabuck, un taureau de haute valeur, 2 ans avant son décès;
      • Production de clones interspécifiques avec le transfert de noyau Bos inducus dans des ovules Bos taurus.
      • Dérivation des cellules souches embryonnaires putatives chez le rat  avec contribution aux tissues extra-embryonnaires;  

      Le docteur Smith a obtenu sa maîtrise en génétique animale de l'Université d'Édimbourg en Écosse. Son PhD en embryologie mammalienne s'est déroulé à l'Institut Roslin. La technique originale de transfert nucléaire a d'ailleurs été mise au point par le docteur Smith à l'Institut Roslin, sous la direction du Dr Ian Wilmut. Rappelons que Lawrence Smith a participé aux travaux qui ont éventuellement mené à la naissance de Dolly, le premier animal à être cloné à partir d'une lignée cellulaire adulte. Une fois au CRRA, le docteur Smith a mis au point la technique de transfert nucléaire chez le bovin, technique qu'il a depuis appliquée, en association avec d'autres biotechnologies de l'embryon, à l'étude de questions fondamentales et appliquées. Le programme de recherche du docteur Smith comporte deux axes principaux. Le premier a trait aux interactions nucléocytoplasmiques, qui jouent un rôle crucial dans la reprogrammation epigénétique de la chromatine et dans le succès de la technique de transfert nucléaire utilisée dans le clonage. Le deuxième est la production d'animaux porteurs de deux génotypes mitochondriaux à la suite de transferts nucléaire et cytoplasmique. Outre ses travaux de recherche fondamentale, Lawrence Smith a réalisé des projets de recherche appliquée avec, entre autres, Clonagen, Alliance-Boviteq et Nexia Biotechnologies, des partenaires de longue date du docteur Smith dans le domaine des biotechnologies de l'embryon. Il a reçu le prix d'excellence Pfizer 1998 pour la recherche en santé animale et la Chaire de recherche du Canada en Clonage Animale et Biotechnologies de l’embryon. Dr Smith a également déposé une demande de brevet pour une technique de transfert nucléaire différente de celle qui est employée par les autres groupe de recherche, dont l'équipe du Roslin Institute. Enfin, Lawrence C. Smith est régulièrement sollicité dans le monde à titre de conférencier invité.  

       

      Lab Members: 

      •  Jacinthe Therrien, Research professional, This email address is being protected from spambots. You need JavaScript enabled to view it.
      • France Filion, Research professional, This email address is being protected from spambots. You need JavaScript enabled to view it.
      • Mikhael Poirier, M.Sc., This email address is being protected from spambots. You need JavaScript enabled to view it.
      • Olivia Smith, M.Sc., This email address is being protected from spambots. You need JavaScript enabled to view it.

       

      List of Publications: 

      Meirelles, F.V., Bordignon, V., Watanabe, Y., Watanabe, M., Dayan, A., Lôbo, R. and Smith, L.C. (2001) Complete replacement of the mitochondrial genotype in a Bos indicus calf reconstructed by nuclear transfer to a Bos taurus oocyte. Genetics 158: 351-356;

      Betts, D.H., Bordignon, V., Hill, J.R., Winger, Q., Westhusin, M.E., Smith, L.C., King, W.A. (2001) Reprogramming of telomerase activity and rebuilding of telomere length in cloned cattle. Proc. Natl. Acad. Sci. USA 98: 1077-1082;

      Lucifero, D., Suzuki, J., Bordignon V., Vigneault, C., Therrien J., Filion, F., Smith, L.C., and Trasler J. (2006) Snrpn methylation is conserved in bovine embryos and abnormal in clones. Biol Reprod 75: 531-530. 

      Demers, S.P., Yoo, J.G., Li, L., Therien J., and Smith, L.C. (2007) Rat embryonic stem-like (ES-like) cells can contribute to extraembryonic tissues in vivo. Cloning and Stem Cells 9: 512-522; 

      Mastromonaco, G.F., Smith, L.C., Filion, F., Favetta, L.A. and King, W.A. (2007) The influence of nuclear content on developmental competence of Gaur x cattle hybrid and SCNT embryos. Biol Reprod 76 : 514-23.

       

       

      David W. Silversides

      Additional information