Author

Joanna Olivas

Vanderbilt University Medical Center

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 2

Signature Assays, Organisms & Methods

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Approach:experimental assay· 2 Research Focus:host-pathogen & immune response· 2 Organism:mouse· 2 Research Focus:cell signaling & trafficking· 1 Research Focus:development & morphogenesis· 1 Assay:metagenomics· 1 Assay:proteomics· 1

Frequent Co-Authors

Mariana Xavier ByndlossiD· 2 shared Camila Bernardo de BritoiD· 1 shared Catherine D. Shelton· 1 shared Darian T. CarrolliD· 1 shared Derek Armstrong· 1 shared H. F. Avalos· 1 shared Julia LaneiD· 1 shared K. M. Jones· 1 shared

Activity by Year

2026-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 27 mutual co-author links

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2 shared papersMicrobiology

Mariana Xavier ByndlossORCID

Mutual co-authors in cluster

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2 papers

Recent·Most cited

Small intestine microbiota development prevents early-life adiposity via IL-22-mediated intestinal PPARα suppression

Catherine D. Shelton, Camila Bernardo de Brito, Vinícius Dias Nirello, Nicole Kirchoff, Julia Lane, Joanna Olivas, Darian T. Carroll, Derek Armstrong, Matthew W. Rhee, Merrygay N. James, Louise Lantier, Marco Aurélio Ramirez Vinolo, Mariana Xavier Byndloss

This study shows that early-life small intestine microbiota prevents adiposity by suppressing PPARα via IL-22, and antibiotic disruption increases adiposity.

bioRxiv · Jun 12, 2026 · PreprintMicrobiology

Aspartate aminotransferase is required for Salmonella expansion in the inflamed gut via TCA anaplerosis

Nicolas G. Shealy, Madi Baltagulov, H. F. Avalos, Joanna Olivas, K. M. Jones, Mariana Xavier Byndloss

This study shows that aspartate aminotransferase (AspC) is essential for Salmonella Typhimurium growth in the inflamed gut by supporting TCA cycle anaplerosis and aspartate metabolism.

Infection and Immunity · Mar 30, 2026Peer-reviewedMicrobiology