Isabella Nicola, DMV, PhD, Dipl. ECBHM

16 Apr 2025

Contact information

Research interests

  • Reproductive system diseases in cattle
  • Metabolic diseases of cattle
  • Calf health

My research interests include several areas of bovine health, notably uterine diseases and their impact on reproductive performance, as well as metabolic disorders affecting herd-level outcomes. I am also interested in calf health and infectious diseases in cattle.

Members of the laboratory

Nadir Maamri, DMV
MSc student
nadir.maamri@umontreal.ca

Jairo Alberto Penago Wilches, DMV
IPSAV Intern
jairo.alberto.penagos.wilches@umontreal.ca

Publications

Isabelle Gilbert

Isabelle Gilbert, PhD

31 Jan 2025

Contact information

  • 418-656-2131, Ext. 408358
  • Isabelle.gilbert@fsaa.ulaval.ca
  • Université Laval
    Département des sciences animales
    Pavillon Paul Comtois, local 4207
    2425 rue de l’Agriculture
    Québec, Qc
    G1V 0A6

Research interests

  • Epigenetics
  • Genetics / genomics
  • Reproduction and epigenetics in domestic animals

My research interests focus on male reproductive functions and epigenetics in livestock species. One of my primary objectives will be to study the sources of genetic instability transmitted by the male gamete and their modulation by environmental factors. The central hypothesis of this work is based on the idea that sperm parameters and chromatin reorganization are key indicators of fertility in livestock animals. More specifically, my projects aim to:

  • Map the chromatin landscape of sperm to better understand its role in fertility.
  • Identify the links between epigenetic marks transmitted by the male gamete and reproductive performance.
  • Apply this knowledge to develop strategies to improve fertility in livestock species.
  • Propose innovative solutions to optimize semen preservation techniques.

This research will generate fundamental knowledge about the molecular processes regarding male reproduction while providing practical applications in the agricultural sector.

Members of the laboratory

Amy Sarazen

MSc candidate

amy.sarazen.1@ulaval.ca

Publications

Karina Gutierrez, BSc, MSc, PhD

20 Dec 2024

Contact information

Research interests

  • Developmental biology – embryo development
  • Gene editing
  • Embryo metabolism

Embryo development
Pigs are valuable animals for both agriculture and biomedical research. Our laboratory uses pigs as models to study proper embryo development. With the use of gene editing tools such as CRISP/Cas, we modulate genes to understand their roles in embryo development. Recently, our laboratory started to use non-human primates as models for embryo development and the generation of biomedical animal models.

Lipid metabolism
Porcine oocytes and embryos are characterized by high lipid content, which accounts for their markedly dark coloration. In addition to serve as energy source, lipids have other important functions on cell proliferation and differentiation, hormone production, and cell signaling. Our research goal is to understand the lipid metabolic regulation in porcine embryos. This will help replicate in vitro the metabolic changes necessary for proper embryo development, ultimately improving fertility and cryopreservation success.

Members of the laboratory

Publications

Werner Giehl Glanzner, DVM, MSc, PhD

3 Dec 2024

Contact information

Research interests

  • Biotechnology and embryo development
  • Embryo epigenetic and molecular regulation
  • Gene and epigenome editing

Epigenetic regulation of early embryo development:
Epigenetic regulation has a vital role for successful embryo development regulating aspects related to embryo genome activation and cell lineage specification. Our research aims to unravel the epigenetic regulators that participate control the embryo outcomes. Nevertheless, we are also focused in understanding the connection between epigenetics and metabolic and oxidative status during early embryo development.

miRNAs and DNA methylation and its connection with oocyte to embryo transition (OET)
The role of miRNAs and DNA methylation in promoting the OET and the interconnection with other epigenetic regulators are not clearly understood. Therefore, we aim to explore the connection between miRNAs and DNA methylation with epigenetic regulators that together contribute to the embryo genome activation and transcriptional activity during early embryo development.

Genome and epigenome editing
Our lab is using gene and epigenome editing tools for generation of animal models for both biomedical field and agricultural purposes. The animal models include the pig and non-human primates, more specifically the Common marmoset.

Members of the laboratory

Liam Socransky
MSc student
liam.socransky@mail.mcgill.ca

Sabrina Roy
Honours student
sabrina.roy2@mail.mcgill.ca

Publications

Anthony Estienne, PhD

22 Jul 2024

Contact information

Research interests

  • Ovarian physiology
  • Folliculogenesis regulation
  • Follicular health and intercellular communication

My expertise revolves around reproductive function in general and ovarian function in particular. My early research focused on the study of terminal ovarian folliculogenesis, more specifically the regulation of the Anti-Müllerian Hormone (AMH) system by Bone Morphogenetics Proteins (BMPs) and its consequence on ovarian phenotype in several study models. Subsequently, I became interested in processes such as follicular atresia and ovulation. Finally, my most recent research projects have focused on the relationship between metabolism and reproduction, particularly in the hen and human species. I have also studied the effects of certain phytosanitary products (herbicides) on reproduction in the above-mentioned species. Understanding the function of reproduction and its physiology have dictated my academic and professional choices throughout my career.

Our laboratory’s long-term research program will take place in the context of the difficulties encountered by the dairy industry, and in particular the problems of cow reproduction. Cows have been selected solely on the basis of milk production performance, to the detriment of other traits such as fertility. Indeed, the success rate of first artificial inseminations (AI) leading to pregnancy has steadily decreased over the last few decades, necessitating the multiplication of AIs and thus lengthening the time between two pregnancies and therefore two lactation periods. Efforts are now being made to overcome these problems, but reproductive biotechnologies, and more specifically the production of female gametes in vitro, could provide additional solutions. Even if assisted reproduction techniques in production animals are well mastered, the cultivation and reconstitution of reproductive organs in vitro could make it possible to reduce herd sizes and thus the number of animals, leading to a reduction in production costs and environmental impact, while maintaining high embryo quality productivity.

Members of the laboratory

Salma Ramzi
Master student
salma.ramzi@umontreal.ca

Mizanur Rahman Sharker
Master’s student
mizanur.rahman.sharker@umontreal.ca

Publications

Simon Dufour, DMV, PhD

19 Jul 2024

Contact information

Research interests

  • Diagnostic tests
  • Pregnancy-associated glycoprotein
  • IBR-BVD vaccination

Simon Dufour is a professor of veterinary epidemiology at the Faculty of Veterinary Medicine at the Université de Montréal. He currently leads the Op+lait FRQ-NT research group and is co-director of the Dairy Production Biosecurity Chair. He is passionate about the epidemiology of bovine diseases and the monitoring of antimicrobial use in dairy animals. His research also focuses on the use of vaccination to prevent various bovine diseases, including abortions caused by IBR and BVD. A portion of his research program specifically addresses the detection and control of the latter disease. Additionally, he is interested in fetal losses during gestation in dairy cattle and the use of pregnancy-associated glycoproteins as a pregnancy test.

He also has solid expertise in diagnostic strategies, disease control, and the development of data visualization tools for health monitoring and evaluation. Over the years, he has contributed to the training of many graduate students (most of whom have survived). Above all, he is passionate about learning and teaching.

Members of the laboratory

Karol Gilberto Solano Suarez
PhD student
karol.gilberto.solano.suarez@umontreal.ca

Victoria Regia Lima Campelo
PhD student
victoria.regia.lima.campelo@umontreal.ca

Marie-Pascale Morin
PhD student
marie-pascale.morin@umontreal.ca

Daryna Kurban
PhD student
daryna.kurban@umontreal.ca

Faustin Farison
PhD Student (co-supervision)
faustin.farison@umontreal.ca

Nikky Milar
PhD Student (co-supervision)
nikky.milar@umontreal.ca

Mariana Fonseca
Postdoctoral fellow
m.fonseca@umontreal.ca

Ahmad Albaaj
Research professional
ahmad.aljaaj@umontreal.ca

Publications

Marianne Villettaz-Robichaud, agr., PhD

19 Jul 2024

Contact information

Research interests

  • Dairy cattle welfare
  • Dairy cattle behaviour
  • Calving

My research program focuses on improving the daily welfare of dairy cattle. Many of my projects involve foot and limb health, as this influences not only welfare, but also longevity, productivity, reproduction and overall profitability. My other research interests include cull cattle, young dairy calves and the links between farm animal welfare and producer welfare.

 

Members of the laboratory

Publications

Juan Carlos Arango Sabogal, DMV, PhD

18 Jul 2024

Contact information

Research interests

  • Infectious diseases epidemiology
  • Performance of diagnostic tests for endometritis (cattle, horses)
  • Quantitative methods, Bayesian analysis and machine learning

The overall aim of my research topics is the prevention and control of infectious diseases in farm animals (particularly dairy cattle and horses). My research projects revolve around 3 axes: 1) the study of the epidemiology of infectious diseases, 2) the evaluation of the performance of diagnostic tests and screening strategies, and 3) the development and evaluation of prevention and control programs and surveillance tools. In addition to epidemiology, I have a keen interest in quantitative methods, Bayesian latent class models and machine learning.

Affiliations

Op+lait – Regular member

GRESABO – Regular member

CERCL — Regular member

Members of the laboratory

Publications

Gustavo Zamberlam

Gustavo Zamberlam, DMV, MSc, PhD

16 Oct 2023

Contact information

Research interests

  • Ovarian physiology
  • Physiology of the pituitary gland: regulation of gonadotropins synthesis
  • Disorders of the pituitary gland and gonads

Our main research interest is the study of ovarian physiology and dysfunction; particularly the regulation of ovarian follicle development and ovulation in bovine and rodents. The first, an important agricultural species, and the second, a useful animal model for research in biology of reproduction. We have used in vitro and in vivo approaches to demonstrate novel roles of intracrine factors like the free radical gas nitric oxide, FGFs and the secreted glycoproteins WNTs and SFRPs in mammalian ovarian granulosa cells.

We are currently focusing our studies on the physiopathological roles of Hippo signaling in bovine ovarian follicle cells. We have also expanded our studies to the level of the pituitary gland. In a current research project with mice, we are using functional genomics approaches to determine how the physiological roles of Hippo pathway regulate gonadotropin synthesis and how the disturbance of this pathway can alter pituitary function.

Members of the laboratory

Natalia Jakuc
PhD student
natalia.jakuc@umontreal.ca

Leonardo Guedes De Andrade, MSc
PhD student
leonardo.guedes.de.andrade@umontreal.ca

Publications

Guillaume St-Jean, DVM, PhD, DACVP

26 Jan 2021

Contact information

Research interests

  • Development and physiology of the uterus
  • Pathogenesis of uterine diseases
  • Mechanisms of intracellular signaling pathways

Our primary field of interest is the roles played by signaling pathways in the development and function of the uterus and pathogenesis of uterine diseases in human and animals. The uterus is a dynamic organ. Numerous signaling pathways expressed during embryogenesis and adult life carefully coordinate its development and function. TGF-b, WNT and Hippo are counted amongst these pathways. They also contribute to the development of numerous diseases. Using functional genomics and comparative pathology approaches, we study the roles of some of these pathways in the pathogenesis of uterine diseases. Our current research study the roles of Hippo signaling in the uterine function and development of endometritis in cows. We are also interested in the development of uterine fibrosis and plan to study the roles of these signaling pathways in its development, which could lead to the identification of novel therapeutic targets.

Members of the laboratory

Etienne Blais, DVM, IPSAV
MSc student
etienne.blais.1@umontreal.ca

Liudmila Taranova
MSc student
liudmila.taranova@umontreal.ca

Publications

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