GESA AGW 2019 Bushell Lecturer

Professor Martin J. Blaser

Martin J. Blaser is the Henry Rutgers Chair of the Human Microbiome, Professor of Medicine and Pathology, and the Director of the Center for Advanced Biotechnology and Medicine at Rutgers University. Previously, he served as Chair of the Department of Medicine at NYU. A physician and microbiologist, Dr. Blaser is interested in understanding the relationships we have with our persistently colonizing bacteria. His work over 30 years focused on Campylobacter species and Helicobacter pylori, which also are model systems for understanding the interactions of residential bacteria with their hosts. Over the last 15 years, he has also been actively studying the relationship of the human microbiome with health and important diseases as asthma, obesity, diabetes, and allergies. Dr. Blaser has served as the advisor for many students, post-doctoral fellows, and junior faculty, and as President of the Infectious Diseases Society of America, Chair of the Board of Scientific Counselors of the National Cancer Institute, and Chair of the Advisory Board for Clinical Research of the NIH. He was elected to the National Academy of Medicine and the American Academy for Arts and Sciences. He holds 28 U.S. patents, and has authored over 580 original articles. He wrote Missing Microbes, a book targeted to general audiences.


GESA AGW 2019 Ferring Trans-Tasman Lecturer

Dr Malcolm Arnold

Malcolm Arnold is a Scotsman, born in Falkirk in 1961, who graduated MB ChB from Glasgow University in 1984. He trained in General Medicine and Gastroenterology in Portsmouth, Southampton and Manchester. He moved to New Zealand in 1994. He is passionate about Gastroenterology, particularly Endoscopy, and quality in that field. He is Clinical Lead in Gastroenterology in Hawkes Bay Fallen Soldiers Memorial Hospital, Hastings; Clinical Lead for the National Endoscopy Quality Improvement Programme (NEQIP); and a member of the board of Crohn's & Colitis New Zealand. He is President of the New Zealand Society of Gastroenterology.


Professor André D’Hoore MD, PhD, EBSQ-CR, hon-ASCRS

KU Leuven, and University Hospital Leuven, Leuven, Belgium.
André D’Hoore is Chair of the Department of Abdominal Surgery at the University Hospital Leuven and a full professor at the Catholic University of Leuven (KU Leuven) in Belgium. He graduated with an MD from the KU Leuven in 1988, qualified as a surgeon in 1993, and joined the staff of his current department in 1994. He received international postgraduate training in colorectal surgery at the Cleveland Clinic in Fort Lauderdale, FL, USA; St Mark’s Hospital in London, UK; and the Hôpital Cantonal in Geneva, Switzerland. In 2000 he became a European Board Qualified Surgeon in ColoProctology, and he was awarded his PhD in 2007. In 2008 he became an associate professor at the Faculty of Medicine, KU Leuven; in this role he contributes to graduate and postgraduate teaching of students and trainees in abdominal surgery.

He became honorary member of the ASCRS and the Mexican Society.

He is a member of ESA and IOIBD.

Professor D’Hoore’s main interest is the role of minimally invasive approaches to IBD and colorectal cancer and he is a regularly invited speaker at international surgical meetings. His scientific work has resulted in more than 220 peer-reviewed papers an 13 book chapters.

He also serves on various editorial boards. He is a founding member of the European Society of Coloproctology (ESCP) and is the founder of the surgical branch of the European Crohn’s and Colitis Organization (S-ECCO). He has a named chair at the KU Leuven.

He was invited visiting professor at St. Mark’s Hospital London, Cambridge University, Cornell University New York and Rochester Mayo Clinic.


Dr Evan S. Dellon MD, MPH

Evan S. Dellon, MD, MPH, is an Professor of Medicine and Adjunct Associate Professor of Epidemiology at the University of North Carolina School of Medicine in Chapel Hill. Dr. Dellon received his undergraduate degree from Brown University and his medical degree from Johns Hopkins School of Medicine. He completed internship and residency in Internal Medicine at Massachusetts General Hospital.  He performed a clinical and a research fellowship in Adult Gastroenterology at UNC, during which he also received a Masters of Public Health degree in Epidemiology from the UNC School of Public Health. Dr. Dellon joined the UNC faculty and the Center for Esophageal Diseases and Swallowing (CEDAS) in 2008, where his main clinical focus is on disorders of swallowing, and in particular eosinophilic esophagitis (EoE).  He became Director of CEDAS in 2014, and is an Associate Editor for Clinical Gastroenterology and Hepatology.

Dr. Dellon’s main research interest is in the epidemiology, pathogenesis, diagnosis, treatment, and outcomes of eosinophilic esophagitis (EoE) and the eosinophilic GI diseases (EGIDs). The goal of his research is to improve the lives of patients with EoE and EGIDs by learning how to better diagnose, treat, and monitor the condition.  He is widely published in this area, and collaborates with investigators all over the world.  Dr. Dellon has received research funding from the National Institutes of Health, the American College of Gastroenterology, the American Gastroenterologic Association, the CURED Foundation, UNC, and a number of industry partners to study EoE and other EGIDs.


Professor Maria Gloria Dominguez-Bello

Maria Gloria Dominguez-Bello received her Bachelor of Science in Biology (1983) from Simon Bolivar University in Venezuela, and her Masters (1987) and PhD (1990) in Nutrition and Microbiology, respectively, from the University of Aberdeen in Scotland. She was a post-doctoral fellow at the Institute National de la Recherche Agronomic in France, and worked at the Venezuelan Institute for Scientific Research, at University of Puerto Rico, New York University. Currently, she is a Henry Rutgers Professor of Microbiome and Health at Rutgers   University, affiliated to the Departments of Biochemistry and Microbiology, and of Anthropology, and is also the Interim Director of the Institute for Food Nutrition and Health (IFNH), affiliated to the School of Environmental and Biological Sciences. She is Fellow of the American Academy of Microbiology, and of the Infectious Diseases Society of America, serves on the editorial board of several biomedical journals. She has over 120 scientific publications with synergistic multidisciplinary collaborations in Chile, Venezuela, Bolivia, Peru, Brazil, Tanzania, Spain, Belgium, and the USA. Her lab currently focuses on multidisciplinary approaches to study the impacts of modern practices on the microbiome, and restoration strategies.


Professor John K. Marshall MD MSc FRCPC AGAF

Dr. Marshall is a Professor of Medicine and Director of the Division of Gastroenterology at McMaster University, as well as a consultant gastroenterologist at Hamilton Health Sciences in Hamilton Ontario. He completed his B.A. and M.D. at Queen’s University, and then undertook his residency training and M.Sc. in Clinical Epidemiology & Biostatistics at McMaster University. He is a Full Member of the Farncombe Family Digestive Health Research Institute. His publications include over 200 academic papers and book chapters and over 200 abstracts. Dr. Marshall is the Editor-in-Chief of the Journal of the Canadian Association of Gastroenterology (JCAG). He is also an Associate Editor of ACP Journal Club and Evidence-Based Medicine, an Editorial Board Member for the Journal of Crohn’s and Colitis, and an Editor for the Cochrane Collaboration Inflammatory Bowel Disease and Functional Bowel Disorders Review Group. Past honours include the Canadian Association of Gastroenterology (CAG) Young Investigator Award (2008), the CAG Young Educator Award (2006) and Fellowship in the American Gastroenterological Association (2007). Dr. Marshall’s clinical and research interests include inflammatory bowel disease, post-infectious irritable bowel syndrome, gastrointestinal bleeding, endoscopy, clinical trials, clinical epidemiology, health outcomes and health economics.


Dr Aleixo Muise

Dr. Muise is a Clinician-Scientist in the Cell Biology Program and Co-Director of the Inflammatory Bowel Disease (IBD) Centre at the Hospital for Sick Children, University of Toronto. His clinical and research focus centers solely on understanding the pathogenesis of severe forms of intestinal disease in very young children, including inflammatory bowel disease (IBD). Unfortunately, these patients often do not respond to conventional therapies, suffer significant morbidity and are at risk of premature death. The goal of his lab is to develop a precision medicine approach to better treat these young children by elucidating the underlying genetic/functional causes. To achieve this goal, Dr. Muise has established the first clinic focused exclusively on very young children with IBD (VEOIBD) at SickKids and is PI of NEOPICS ( and co-PI of the Helmsley Charitable Trust VEOIBD Consortium ( and Pediatric Congenital Diarrhea and Enteropathy Consortium (PediCODE;


Dr Gyongyi Szabo, MD, PhD, FAASLD, AGAF, FACP, Hon. Sc.D.

Gyongyi Szabo, MD, PhD is the Worcester Foundation for Biomedical Research Endowed Chair, Professor and Vice Chair of Medicine and Associate Provost at the University of Massachusetts Medical School.  Dr. Szabo is an internationally recognized leader in the field of liver inflammation and innate immunity. Her clinical investigations focus on alcoholic hepatitis, non-alcoholic fatty liver disease and viral hepatitis. She is the lead investigator on an NIH-supported multicenter clinical trial to study IL-1 receptor antagonism in alcoholic hepatitis. Her laboratory studies pattern recognition receptor signaling pathways and inflammasome activation in macrophage and neutrophil interactions with hepatocytes in alcoholic and non-alcoholic liver diseases. Her investigations recently revealed the importance of micro-RNAs and extracellular vesicles in liver diseases. She is member of the Hungarian Academy of Sciences and received the prestigious Mendelson Award from the NIH in recognition of her contributions to clinical research. She has served as President (2015) of the American Association for the Study of Liver Diseases (AASLD) and is the inaugural Editor-in-Chief of Hepatology Communications.