Julian R. Marchesi

Imperial College Healthcare NHS Trust — United Kingdom

Biochemistry, Genetics and Molecular Biology · Life Sciences

84h-index39.0kcitations588works3.52yr avg
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Research Topics

Gut microbiota and health(255), Clostridium difficile and Clostridium perfringens research(106), Hepatocellular Carcinoma Treatment and Prognosis(74), Renal cell carcinoma treatment(66), Cancer Immunotherapy and Biomarkers(62)

Publications588 total

Dynamics in circulating immune cell subsets after faecal microbiota transplantation for recurrent Clostridioides difficile infection
Clinical and Translational Gastroenterology·2026Open Access
Assessment of macrolide resistance in the respiratory tract of preterm-born infants during treatment with azithromycin in the AZTEC clinical trial
Thorax·2026Open Access
Maternal diet-induced hypercholanemia alters gut microbiota and metabolome in adult female Western diet-fed offspring
Experimental Biology and Medicine·2026Open Access
P0070 Improvement in quality of life in inflammatory bowel disease patients treated with advanced therapies: Interim findings from IBD-RESPONSE
Journal of Crohn s and Colitis·2026
P0841 Disease phenotype affects therapeutic choice in late-onset IBD: a large-scale analysis
Journal of Crohn s and Colitis·2026
P0184 Improvement in fatigue but not joint pain and stiffness in Inflammatory Bowel Disease patients treated with advanced therapies: Interim findings from IBD-RESPONSE
Journal of Crohn s and Colitis·2026
Vaginal microbe media (VMM): a novel medium to culture Lactobacillus iners and other fastidious vaginal bacteria
Journal of Microbiological Methods·2025Open Access
Impact of YAQ001 on the gut microbiome, permeability and markers of systemic inflammation in patients with cirrhosis
2025Open Access
Efficacy and safety of microbiota-targeted therapeutics in autoimmune and inflammatory rheumatic diseases: protocol for a systematic review and meta-analysis of randomised controlled trials
BMJ Open·2025Open Access
A large-scale comparison of clinical outcomes to IBD therapies in White and South Asian ethnicities
EClinicalMedicine·2025Open Access
Non-invasive measurement of intestinal barrier function in environmental enteropathy using transcutaneous fluorescence sensing
2025Open Access
Strengths and limitations of urinary sugar testing: an observational study of intestinal permeability and absorption in adults and children in Zambia and Tanzania with reference to mucosal biopsies
American Journal of Clinical Nutrition·2025· 1 citedOpen Access
DNA reference reagents isolate biases in microbiome profiling: a global multi-lab study
mSystems·2025· 4 citedOpen Access
S1572 Evaluation of Rectal Swabs as a Viable Alternative to Faecal Sampling for Calprotectin Measurement in IBD Patients
The American Journal of Gastroenterology·2025
Gut microbiome comparability between DNA extraction kits
Gut·2025· 1 cited
ABO blood group antigens influence host–microbe interactions and risk of early spontaneous preterm birth
npj Biofilms and Microbiomes·2025· 4 citedOpen Access
The impact of three distinct probiotic supplements on the gut microbiota and its metabolites in healthy adults
Beneficial Microbes·2025Open Access
Chemotherapy modulation by a cancer-associated microbiota metabolite
Cell Systems·2025· 1 citedOpen Access
The emerging role of the gut microbiota in vaccination responses
Gut Microbes·2025· 3 citedOpen Access
Multi-omic analysis of vaginal bacteria:host immune and metabolic interactions in adverse early pregnancy outcomes
2025Open Access
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Frequent Co-authors

Elaine Holmes(12), Fergus Shanahan(8), Jeremy K. Nicholson(8), David A. MacIntyre(8), Phillip R. Bennett(8), Paul W. O’Toole(7), Ann Smith(7), Yun Sok Lee(6), Marcus J. Claesson(5), Colin Hill(5), R. Paul Ross(5), James Kinross(5), Pauline D. Scanlan(5), Lindsay Kindinger(5), Benjamin H. Mullish(5), Jia V. Li(4), Julie A. K. McDonald(4), Órla O’Sullivan(3), Douwe van Sinderen(3), Catherine Stanton(3)