Peter Dobranowski (@PDobrano) header
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PhD | IBD, Microbiome, Precision Medicine opinions my own

Ottawa, Ontario
Joined April 2012
Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)Photo by Peter Dobranowski (@PDobrano)
Beyond these highlights, we found marked variation in SCFA responses and bacterial protein profiles. We propose that matching the "best" RS to an #IBD patient microbiome may require a personalization assay, which our ex vivo platform is fit for purpose.
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Thanks to our co-authors, clinical team, funding sources, and all patients and families involved in this study!
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Our new paper adds: - RS-specific fermentation profiles - Microbiomes from kids with IBD ferment RS with high inter-individual variability - Broad microbiome functions are activated by RS, beyond butyrate (nucleic acids, fatty acids, amino acids, and derivatives)
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What's next: we used our ex vivo microbiome culturing platform (RapidAIM) to personalize RS in clinical trials. Trials are complete and analyses are ongoing. A big thank you to all collaborators, technicians, and patients and their families for enabling this work.
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Peter Dobranowski retweeted
Writing this made me feel better this week. I hope reading it makes you feel better. theintrinsicperspective.com/…
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Clinical remission was more likely in “predicted responders” (32%) than non-stratified patients (26%). But, clinical remission was also more likely in “predicted responders” randomized to the placebo group (11%) than non-stratified placebo patients (1%).
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This is not a totally surprising outcome of precision medicine (and may be useful in certain contexts): patients predicted to respond to a therapy may simply fare better without the therapy to begin with.
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