Discovery Profile: Laura Rosella, PhD, MHSc
MitoCanada partners with MITO2i to fund an innovation grant to explain the health-system impact of mito disease and psychiatric conditions
Epidemiology is a branch of medicine that examines the incidence, distribution, and possible control of diseases and other factors relating to health. Incidence summarizes the number of individual who develop a disease or condition during a specific time period and indicates the likelihood that a person in a specific population will be affected by that condition.
Dr. Rosella’s study, The epidemiology and health system impact of mitochondrial disease and psychiatric conditions in Ontario: a population-based study, is the first to establish a methodological approach to measure mitochondrial disease from population data across Canada.
The overall goal of this study is to use linked population health databases to characterize the epidemiology of mitochondrial disease and the co-occurrence with mental health conditions in Ontario. Our specific objectives are to examine:
- the health care burden and costs associated with mitochondrial disease in a population-based cohort in Ontario
- the association between mood disorders and other mental health conditions in patients with mitochondrial disease and,
- the joint impact of mental health conditions on the health care use, costs and mortality.
For the first time in Canada, we will
a) contribute key epidemiological evidence to inform health and health care for those living with mitochondrial conditions, and
b) further support hypotheses and research on the relationship between mitochondrial disease and mental health.
Funding for this innovation grant will allow us to build fundamental methodology that can be replicated across Canada and enable future international research to compare mitochondrial disease populations and further study of health care utilization and costs.
Laura Rosella, PhD, MHSc | Associate Professor, Dalla Lana School of Public Health, University of Toronto
The sisters and their family had never even heard of mitochondrial disease (mito) — and neither had many of the health care practitioners in their hometown of Newfoundland and Labrador, which contributed to the long path to diagnosis.
While Jodi, Erika and their mother, Brenda, all have MELAS, the three of them are affected in different ways.
Despite — or perhaps because of — these challenges, the Young family has developed a rare closeness. “My sister, mom, dad, and I will always have an unspoken bond that comes with experiencing mito,” says Erika. “Mito has definitely brought us all closer together,” agrees Jodi. “Dealing with mito can be extremely isolating, especially here in Newfoundland where there are few resources for anything, let alone a rare disease. This forced us to be closer, because we only had each other.”
As they build their own rich lives as young adults — Jodi is a mitoScholar who’s passionate about entomology(the study of insects) and who’s currently pursuing a PhD in plant-pollinator interactions, and a huge animal lover who finds joy in spending time with her partner and her pets (a dog, birds, sugar gliders, and a snake), while Erika is a soil researcher who loves travelling and partaking in outdoor activities with her spouse and her Australian Shepherd — the sisters remain ever-committed to their parents. “While I no longer live at home, I see my parents almost every day,” says Erika. “The negative consequences of MELAS are ever-present even though I live a full life and am not actively experiencing symptoms of the disease.”

On January 1st, Genevieve saw a New Year, and a few days later, she went on her first plane ride to Florida! There, we began to experience bottle refusal and some other signs that were concerning, such as vomiting and her overall muscle tone becoming weaker.


