Marion Leboyer, M.D., Ph.D. is Professor of Psychiatry at the University of Paris Est (UPEC) in Créteil, France. She is head of the University-affiliated department of Psychiatry (Hôpitaux Universitaires Mondor, Assistance-Publique-Hôpitaux de Paris). She also runs the laboratory “Translational Neuro-Psychiatry” (http://www.imrb.inserm.fr/equipes/m-leboyer-s-jamain/) which is part of Mondor Institute (Inserm U955).

Since 2007, she is the executive director of a non-profit foundation, “Fondation FondaMental” (www.fondation-fondamental.org) created by the French Ministry of Research. Dr. Leboyer has authored or co-authored 900 peer-reviewed international publications (H-factor = 96) on autism spectrum disorder and major affective and psychotic disorders.

Her research efforts contributed to the better identification of genetic and environmental risk factors associated with major psychiatric disorders towards a better understanding of causal mechanisms. In particular, she has contributed to the identification of mutations of genes implicated in synaptogenesis in autism, associations of genetic vulnerability factors in bipolar disorders, the discovery of immune dysfunctions, environmental risk factors as well as brain imaging abnormalities. Her goal is to develop diagnostic tools to better identify homogenous subgroups of psychiatric disorders paving the way to mechanisms-based treatments. Within the expert center networks centers created and coordinated by Fondation FondaMental, several cohorts of patients have been followed allowing for the construction of shared observational databases and biobanks. These networks have enabled multiple collaborations within different national and international research programs. Dr Leboyer is the principal investigator of several international, European and national research projects funded by the National Research Agency and by the French Ministry of Health including immune signatures (using biomarkers, immune-genetic, brain imaging data), and clinical trials of immune-modulatory treatment. Since 2021, she is also the head of a European network in Immuno-Psychiatry supported by the ECNP.

She has authored or co-authored more than 900 original and international papers and review articles since 1984 (H Factor: 90), she is editor of 8 books and partner of 3 patents.