Date: May 27, 2023, 2-4PM
Location: Auditorium – Grande Bibliothèque, 475 Boul. de Maisonneuve E, Montréal, QC H2L 5C4
Join us for an exciting series of three public lectures on Diet, Obesity & the Brain by leading researchers in the field, presented by the Canadian Association for Neuroscience.
Hosts: Natasha Rajah, McGill University and Douglas Hospital Research Centre & Alain Dagher, McGill University and Montreal Neurological Institute
Schedule
2 PM: Patricia Pelufo-Silveira, MD, MSc, PhD: Early environment, food preferences and life-long health / Environnement précoce, préférences alimentaires et santé tout au long de la vie (presentation in English but speaker will answer questions in French and English)
2:30PM: Stephanie Fulton, PhD: Dietary and metabolic threats to anxiety and depression prevalence – Menaces alimentaires et métaboliques sur la prévalence de la dépression et de l’anxiété (presentation in English but speaker will answer questions in French and English)
3:00 PM Alain Dagher, MD: Obésité et cerveau / Obesity and the Brain (presentation in French, but speaker will answer questions in French and English)
3:30 PM: Q&A with invited speakers
Patricia Pelufo-Silveira, MD, MSc, PhD:
Early environment, food preferences and life-long health
Presentation Summary:
The quality of the environment during early life (fetal development and childhood) influences the establishment of eating behaviors and food preferences. This relationship goes beyond the access to specific foods, cultural and learning aspects. In fact, stressful and non-optimal conditions during early life can permanently affect the function of brain structures and systems that influence eating behavior and have an impact on the risk for obesity and metabolic diseases during the life-course.
About Patricia Pelufo-Silveira, MD, MSc, PhD
A pediatrician and neuroscientist, Dr Silveira’s research focuses on how perinatal and early-childhood environments interact with individual differences in biological processes, shaping and modulating both health and disease risk across the lifespan, into old age. Her aim is to identify how gene networks interact with environmental adversities early in life, modifying endophenotypes (impulsivity, sensitivity to reward, executive function, food choices) that ultimately affect healthy growth and neurodevelopment, increasing an individual’s risk for developing chronic metabolic diseases and psychopathologies across their lifespan.
Important research networks:
Member of the National Scientific Council on the Developing Child
https://developingchild.harvard.edu/science/national-scientific-council-on-the-developing-child/
Member of the College of New Scholars, Royal Society of Canada
https://rsc-src.ca/en/fellows-members/college-members
Stephanie Fulton, PhD:
Dietary and metabolic threats to anxiety and depression prevalence
Presentation Summary:
The centrality of mental health to overall wellbeing has never been more apparent. Depression and anxiety disorders are prevalent and disabling mental health conditions and their incidence is compounded by obesity. The interchange between metabolic and mood dysfunction can perpetuate a cycle of despair, overeating and physical inactivity that enhances obesity severity and numerous associated health risks. Mounting evidence reveals an important influence of internal, biological stressors resulting from alterations in energy metabolism on motivation and mood states. Several findings reveal that some of the psychological consequences of obesity stem from poor diet and associated immune responses and highlight a role for neuroinflammation and neuroplastic adaptations in underlying brain circuits. Dr. Fulton will discuss findings regarding the contribution of dietary, metabolic and neurobiological effectors to depression and anxiety development and progression.
About Stephanie Fulton, PhD
Dr. Fulton’s research is supported by federal grants from Canadian Institute of Health Research and Natural Sciences and Engineering Research Council of Canada. She was the recipient of the Fonds de Recherche du Québec – Santé (FRQS) Reseau de recherche en santé cardiometabolique, diabète et obésité Young Investigator Award and CRCHUM Award of Excellence. She co-founded and –organizes the Canadian Neurometabolic Club and Meeting since 2012.
Alain Dagher, MD:
Obesity and the Brain
Presentation Summary:
To regulate body weight, our body has a system called homeostasis. Homeostasis helps us know when to start and stop eating food, and prevents starvation by making us hungry when we lose weight. However, there is also evidence that decision-making skills play a role in controlling our eating habits.
Advertising and highly processed foods are linked to the increase in obesity over the past 50 years. These factors overwhelm our body’s homeostatic defences and cause us to make poor health choices. The propensity to overeat in the response to the abundance of cheap food is heritable (genetic), and expressed in the brain.
On the other hand, being overweight can harm the brain and increase the likelihood of developing dementia and Alzheimer’s Disease. I will show evidence that treating obesity in adults could undo the damage done to the brain and decrease the risk of developing dementia and cerebrovascular disease later on.
About Alain Dagher MD