Author

Lydia Okyere

University of Illinois Urbana-Champaign

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· 4 Genomics· 1 Physiology· 1

Signature Assays, Organisms & Methods

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Assay:bulk RNA-seq· 4 Research Focus:differential expression· 3 Approach:experimental assay· 3 Assay:metagenomics· 3 Approach:statistical model· 3 Organism:zebrafish· 3 Research Focus:cell type annotation· 2 Research Focus:host-pathogen & immune response· 2

Frequent Co-Authors

Christopher A. GaulkeiD· 5 shared David A. Alvarado· 2 shared Jeremiah W. Wanyama· 2 shared Luoyan Duan· 2 shared Amber O’Connor· 1 shared Angela Di FulvioiD· 1 shared Bushra Fazal MinhasiD· 1 shared Daniel Amador‐NogueziD· 1 shared

Activity by Year

2025-2026 · peak 4/yr

Co-Author Collaboration Network

10 top collaborators · 15 mutual co-author links

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5 shared papersMicrobiology

Christopher A. GaulkeORCID

Mutual co-authors in cluster

Author profile →

6 papers

Recent·Most cited

Over-the-counter fiber supplementation associates with metabolic and microbial shifts in rectal mucosa

David A. Alvarado, Lydia Okyere, Amber O’Connor, Maura Walsh, Siting Chen, Liana V. Tsikitis, Christopher A. Gaulke

This study examines how over-the-counter fiber supplements affect the rectal mucosal environment by altering microbiota, SCFA levels, and host gene expression in patients with benign anorectal disease.

bioRxiv · Sep 9, 2026 · PreprintMicrobiology

Two Key Actinomycetota Taxa in the Human Gut Microbiota are Associated with Schistosoma mansoni Infection Burden

Francis Appiah-Twum, Lydia Okyere, Jeffrey Gabriel Sumboh, Dickson Osabutey, Rahmat bint Yusif Ismail, Hilda Darko, Yvonne Aryeetey Ashong, Michael D. Wilson, Jewelna Akorli

Parasitology Research · Jul 3, 2026Peer-reviewedGenomics

Long Term Culture of Germ-Free Zebrafish Using Gamma-Irradiated Feeds

Lydia Okyere, Angela Di Fulvio, Christopher A. Gaulke

This paper develops a method to maintain gnotobiotic zebrafish beyond larval stages using gamma-irradiated diets, revealing physiological and gene expression changes linked to microbiota.

mSystems · Apr 29, 2026Peer-reviewedMicrobiology

Sex-stratified Gut Microbiome Disruption is Associated with Altered Hepatic Gene Expression during Acute Azoxystrobin Exposure

Luoyan Duan, Wes Arend Baumgartner, Jeremiah W. Wanyama, Lydia Okyere, David A. Alvarado, Bushra Fazal Minhas, Christopher A. Gaulke

This study shows that azoxystrobin exposure alters gut microbiota and liver gene expression in zebrafish, with sex-dependent effects, suggesting microbiome disruption contributes to host toxicity.

bioRxiv · Feb 18, 2026 · PreprintMicrobiology

Portal bile acids and microbiota along the murine intestinal tract exhibit sex differences in physiology

François Reichardt, Lauren N. Lucas, Lydia Okyere, Jim Choi, Daniel Amador‐Noguez, Christopher A. Gaulke, Sayeepriyadarshini Anakk

The paper examines sex differences in gut microbiota and bile acid composition in mice, finding distinct microbial diversity and portal bile acid profiles between males and females.

Gut Microbes · Aug 4, 2025Peer-reviewedPhysiology

Influence of Housing, Sex, and Sampling Location on Taxonomy and Function of Adult Zebrafish Microbiomes

Jeremiah W. Wanyama, Lydia Okyere, Luoyan Duan, Christopher A. Gaulke

This study examines how housing, sex, and sampling location affect the microbiome composition and function in adult zebrafish, showing significant variation across these factors.

bioRxiv · May 8, 2025 · PreprintMicrobiology