Author

Marie‐Claire Arrieta

University of CalgaryORCID 0000-0002-4490-3370Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Immunology· 1 Microbiology· 1

Signature Assays, Organisms & Methods

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Organism:mouse· 2 Research Focus:cell type annotation· 1 Approach:experimental assay· 1 Research Focus:host-pathogen & immune response· 1 Assay:metagenomics· 1 Assay:proteomics· 1 Approach:statistical model· 1

Frequent Co-Authors

Emily M. MerceriD· 2 shared Erik van Tilburg BernardesiD· 2 shared Kristen N. KalbfleischiD· 2 shared Bilal HafeeziD· 1 shared Carolyn A. ThomsoniD· 1 shared Colin R. MacKenzieiD· 1 shared Daniel FigeysiD· 1 shared Eugenia Corrales‐AguilariD· 1 shared

Activity by Year

2025-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 35 mutual co-author links

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2 shared papersImmunology

Emily M. MercerORCID

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2 papers

Recent·Most cited

Antibiotic-induced Malassezia spp. expansion in infants promotes early-life immune dysregulation and airway inflammation in mice

Erik van Tilburg Bernardes, Thaís Glatthardt, Mackenzie W. Gutierrez, William N. T. Nguyen, Emily M. Mercer, Hena R. Ramay, Carolyn A. Thomson, Tisha Halim, Nithya Gopalakrishnan, Katarina MacConnell, Kristen N. Kalbfleisch, Kamala D. Patel, Eugenia Corrales‐Aguilar, Kathy D. McCoy, Stephen B. Freedman, Marie‐Claire Arrieta

Nature Communications · Jun 23, 2026Peer-reviewedImmunology

Early-life gut microbiome and stress-axis perturbations dysregulate systemic, mucosal, and brain immunity

Van A. Ortega, Michelle R. Asbury, Colin R. MacKenzie, Fernando Vicentini, Bilal Hafeez, Haonan Duan, Emily M. Mercer, Erik van Tilburg Bernardes, Kristen N. Kalbfleisch, Jumana Samara, Veronika Kuchařová Pettersen, Daniel Figeys, Keith A. Sharkey, Marie‐Claire Arrieta

This study shows that early-life gut microbiome and stress-axis disruptions impair immune and neurodevelopmental health by altering microbial diversity, SCFA production, and neuroimmune responses.

Gut Microbiology · Oct 4, 2025Peer-reviewedMicrobiology