The research in my laboratory is focused on investigating the role of vascular risk factors in brain health across the life span.
I co-direct the Saguenay Youth Study (SYS), which is a longitudinal study of 2,000 adolescents and their parents, aimed at investigating the etiology and pathobiology of cardiometabolic and brain disease across the life span. The study combines multi-omics with deep phenotyping of the body and brain, including magnetic resonance imaging and an hour-long cardiovascular protocol with beat-by-beat recording of blood pressure and hemodynamic factors. To date, we have published >60 original papers based primarily on the SYS multi-domain dataset in highly regarded journals, including those by my team in Circulation, JAMA Psychiatry, and JAMA Pediatrics (impact factor >25).
I have also contributed my expertise and SYS data to several projects carried out through collaborative efforts led by international consortia, namely CHARGE, BRIDGET and ENIGMA, resulting in several high-impact publications (e.g., Science, Nature, Nat Genet). Recently, I led two CHARGE projects related to white-matter hyperintensities, a neuroimaging marker of cerebral small vessel disease: one was on the metabolomic profiling of white-matter hyperintensities in >9,000 individuals (Circulation 2022; PMID: 35050683), and the other one was on the role of white-matter hyperintensities in cortical atrophy and dementia in >550,000 individuals (Nat Commun 2024, PMID: 39496600).